Wednesday, April 13, 2011

ARTIFICIAL MEAT


Artificial meat 'made in a giant vat' could solve global food shortage

Artificial meat “made in a giant vat” could be the best solution to the problems of feeding the world’s growing population, scientists said.

Artificial meat 'made in a giant vat' could solve global food shortage Photo: ALAMY By Andy Bloxham 8:28AM BST 16 Aug 2010

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Over 9 billion people are expected to inhabit the planet by 2050 and the challenge of providing them with enough food to live without destroying the environment is increasingly tough.

Dr Philip Thornton, of the International Livestock Research Institute in Nairobi, said: “One [solution] is artificial meat, which is made in a giant vat.”

He added that another could be the use of nanotechnology, or molecular engineering, to deliver medication to livestock, which could increase their efficiency.

The Bogus $1 Million Meat Prize

Why PETA's artificial chicken contest is nothing but a publicity stunt.

By Daniel Engber

Posted Wednesday, April 23, 2008, at 7:12 AM ET

Read William Saletan's "Human Nature" column on the fake meat prize.

Fake chicken could now be worth $1 million. In the last few days, People for the Ethical Treatment of Animals announced that it will present a $1 million prize to anyone who can demonstrate a major breakthrough in the technology of lab-grown meat: Contestants have until 2012 to produce a commercially viable, in vitro chicken substitute that tastes just like the real thing

Other answers put forward were: increased yields from plants due to higher levels of the carbon dioxide in the atmosphere on which they feed; genetic modification; lowering food waste by encouraging people only to buy what they will use; or by developing food technology so agriculture produces less greenhouse gases.

However, some scientists warned that progress could be hindered by the amounts of information being controlled by some big multinationals in the sector, such as Monsanto

The X-Poultry Prize has already generated high expectations. In its press release, PETA suggests that in vitro farms will spare the "more than 40 billion chickens, fish, pigs, and cows" that are killed every year in the United States. My colleague William Saletan promised Slate readers that "animals were only the first incarnation of meat. Get ready for the second." I'm not so bullish. We might be eating test-tube McNuggets at some point in the next 10 or 20 years, but it's hard to see how PETA's $1 million will help to get us there.


Related in Slate

Catherine Rampell wondered whether we should junk the patent system in favor of science prizes all around. Steven E. Landsburg proposed that the government buy out certain patents and place inventions in the public domain. Chris Suellentrop explained whether you can patent a life form, and Brendan I. Koerner explored whether you can patent the Internet.To understand why, let's back up and think about what a science prize is supposed to do. In theory, a cash incentive encourages private companies to pursue research that doesn't have a clear financial reward. For example, a pharmaceutical company might not have much reason to invest in treating a disease of the developing world, like malaria. A patent on a malaria vaccine would be a great boon for global health, but it wouldn't be worth that much money since the people who need it most can't afford to pay

Science prizes can also encourage intermediate breakthroughs that don't have an immediate commercial application. The Orteig Prize offered $25,000 to anyone who could fly nonstop from New York to Paris. The commercial aviation industry would eventually be worth hundreds of billions of dollars, but when Charles Lindbergh made the trip in 1927, the prize itself was the payoff.

So what's wrong with the PETA prize? You need to sell your product in order to win. According to the contest guidelines (PDF), the million-dollar meat must be available in stores to qualify for the cash. Fake-chicken entrepreneurs have to demonstrate a "commercial sales minimum" at a "comparable market price"; in plain English, they need to move 2,000 pounds of the stuff at supermarkets and chain restaurants spread out across 10 states during a period of three months. And the Franken-meat can't cost more than regular chicken.

That means PETA won't be content with any intermediate (and not immediately profitable) breakthrough, like the development of lab-grown chicken that tastes as good as the natural stuff. Instead, the organization will hold the purse until a "commercially viable" product hits the market. In other words, you can't win the $1 million unless you're already in position to make a profit. At that point, a science prize doesn't provide much incentive for innovation. It's more like a small bonus.

To make matters worse, PETA's commercial requirements saddle researchers with demands that have nothing to do with science. Any company that wants to sell artificial chicken for public consumption will probably face a lengthy government-review process. Consider that it took five years for the Food and Drug Administration to approve the sale of cloned meat. Let's say you invented a perfect chicken substitute tomorrow—something so delicious and inexpensive that it could go into production right away. Even then, you still might not make the PETA deadline for supermarket sales.

By comparison, the contests sponsored by the X Prize Foundation have no such requirements. To win the Google Lunar X Prize, a team of engineers must put a robot on the moon. They don't need to put it on sale in the Hammacher Schlemmer catalog. The Progressive Automotive X Prize, announced last month, will go to the developers of a car that gets more than 100 miles per gallon. They must also demonstrate that their car is "production capable"—i.e., that it won't cost much more than $75,000 to make one—and they need to "articulate clear and viable business cases for bringing their vehicles to market." But they don't have to start selling them at the local dealership.

The PETA prize may turn out to be a minor boon for lab-meat research, insofar as it generates publicity for the project. (When everyone starts talking about artificial chicken, private investors will take notice.) But it's hard to imagine that the $1 million will itself provide much incentive. As a science prize, it just feels a little fake.

Artificial meat would be a preferable alternative to the cruelty and environmental impact of factory farms

Technology is rapidly emerging that will allow scientists to grow artificial meat for human consumption. Yes, this will be just like meat at a molecular level, except it won't come from an animal. It will come from a factory where it was grown cell by cell on a lattice structure using some advanced technology. This article is about the implications about such technology in terms of society, public health, ethical treatment of animals, and other such topics. But let me begin it by saying up front that I cautiously support the artificial growing of meat for a number of (possibly surprising) reasons that I will detail here.

First of all, let me state that my diet currently consists of very little meat. I don't believe in eating animals for their flesh. I don't believe in raising animals and slaughtering them just because their muscle tissue is something I want to consume casually at a Friday barbecue. I think it's highly unethical to treat animals as life-support systems for meat, which is really the way most people look at a cow -- it's just there to support the growth of the meat. There's no consideration whatsoever for the experience of the cow which is, of course, a living, breathing being with a consciousness. Cows have memory, emotions and even their own family members. I don't think it is appropriate in any advanced civilization to be raising and slaughtering animals to consume their meat. It's a rather barbaric practice.

That's one reason why I support the artificial meat idea, because if we can create meat and make it available to consumers without having to kill animals in the process, then we are in fact doing far less harm to the world. We're causing less suffering. We are not putting these animals through the experience of being enslaved in a system with the sole purpose of turning their body into a food source and, ultimately, a profit source. Let's face it -- that's what cattle ranching and pig farming and chicken farming is today. It's a system of exploiting the lives of these animals in order to make a profit. So if artificial meat can replace that, that's an important benefit. Let consumers eat meat without having to kill animals.

Health implications of artificial meat

The second reason I am strongly in support of artificial meat is because I believe that this artificial meat will actually be healthier for people than commercially grown and produced meat, because commercially produced meat comes from cows that are subjected to an assault of various chemicals. They are injected with antibiotics and hormones; they are fed grain that's been sprayed with pesticides and sometimes grown in soils laced with heavy metals. There are Polychlorinated Biphenyls, rocket fuel, and all kinds of other contaminants found in the fat cells of animals that have been raised for food.

So, if you take a cow, pig or chicken and you look at the way it's treated in a commercial ranching or farming environment, you'll find that it's a very unhealthy food source, because it has consumed and concentrated all of these toxic chemicals. When a human being consumes that meat, those toxic chemicals are ingested into that human's body, where they function as cancer-causing chemicals, liver-damaging or hormone-disrupting chemicals. By utilizing artificial meat you can consume meat that, even though it's synthetic and based on chemicals, at least won't have the concentration of heavy metals, pesticides, antibiotics and all these other terrible chemicals that cows are forced to consume.

Artificial meat could end up being healthier for people than real meat. Before you think I've gone crazy, let me explain a little further. No meat, in my opinion, is actually healthy if consumed in large quantities. There are a number of reasons for that, including the fact that meat has no fiber. It putrefies in the digestive tract and is strongly correlated with the onset of pancreatic cancer, breast cancer, colon cancer and bladder cancer. We know meat isn't good for you in the quantities consumed by Americans today. I'm not saying that artificial meat will be good for you, either, but it won't be as bad for you as commercially raised meat.

The other point here is that there is such a thing as healthy, live meat from free-range animals. If you take an animal from a natural environment, fed raw plants, raw grasses, live foods, without it being subjected to antibiotics and hormones or inhumane methods of slaughter, that meat will be much healthier for you than traditionally raised beef. Still, there's no denying that this is a terrible experience for the animal. The animal is still being killed and eaten. This is not the kind of experience that any of us would wish to endure, and yet we require this of other animals so that we may feed ourselves in a mindless way the foods that we prefer to consume.

To summarize, the least healthy meat of all is commercially raised meat -- non-organic, non-free range, factory meat products. Healthier than that would be of course free-range meat, kosher-certified meat, and along the lines of similar health would be artificial meat. None of these meats, as I have stated, are in fact good for you if consumed in large quantities. I believe that meat is not necessary for the human diet, except perhaps in the case of pregnant women who need extra iron and protein. In that case, the meat serves as a very high density protein and iron source that cannot be replicated from the plant world (iron from plants is molecularly different than iron from meats). But with prenatal nutrition, it's doubly important to have organic, free-range meat that's not contaminated with pesticides and heavy metals.

Meat consumption harms the planet

There are tremendous implications resulting from the mass consumption of meat products by the American population, such as the fact that it takes 10 times as much land to create meat protein as it does similar quantities of protein from vegetables. We're also seeing the clear-cutting of rain forests, in the Amazon especially, in order to create grazing land for cattle.

The decision to eat meat is not a solely personal decision. It doesn't just affect you. It actually affects the planet. The more meat you consume, the more land is used for meat raising and harvesting. In the case of the Amazon rainforest, it means there's less land available to support natural rain forest habitat, which is, of course, important for the oxygen production of the entire planet. So, in a very understandable way, the mass consumption of red meat around this planet actually affects the climate of the planet. Global climate change is one side effects of massive meat consumption.

If we were to switch over to a system of generating artificial meat, then the climate effect of this meat production would be drastically reduced. There still may be some industrial runoff or some kind of post-production chemicals that need to be dealt with after creating artificial meat, but undoubtedly these would be far less harmful to the planet than the clear-cutting of rain forest, injecting cows with hormones and antibiotics and raising crops with pesticides so that cows can be fed in a very inefficient food production system.

So artificial meat, even though it may sound strange, could actually be better for the planet if people continue to consume meat. Now what would be best for the planet -- and actually best for the health of individuals, families and entire nations -- would be of course to move away from a meat-centered diet. If we could get people to eat half the meat they currently consume, we would see far lower rates of heart disease, all varieties of cancers, and less obesity as well. Even though the long-term solution is to move to a plant-based diet, as a civilization, a short-term solution could include artificial meat.

Many benefits from a plant-based diet

I have probably eaten more than my share of meat for my entire life already. When I was growing up, my grandfather was a cattle rancher, so we got all the free meat we ever wanted and I ate meat constantly. I have now mostly given up meat (and red meat entirely), but I don't believe in aggressively pushing vegetarianism onto others. I simply have arrived at the obvious conclusion that there's nothing better for the human body, mind and spirit than food based on plants.

If you eat nothing but a plant-based diet, you will be far healthier than if you were to introduce any amount of meat into your diet. All the information out there about people having nutritional deficiencies on a vegetarian diet is misguided and flat-out wrong. Unless, of course, for people are living on what I call a "junk food vegetarian diet," which is soda, chips and vegetarian processed food. Of course that diet causes nutritional deficiencies. But not a health-minded vegetarian diet. Even vitamin B12 is simple to get in sufficient quantities if you put your mind to it.

As a society, we can exist quite comfortably on a plant-based diet. We can get everything we need in terms of nutrition -- including essential oils, vitamins, minerals and the like -- on a plant-based diet. We do not need meat to survive as a civilization. In fact, I believe that the mass consumption of meat devolves our society, because it makes us more angry and aggressive. It makes us less humane and is an uncivilized way to use the resources of the planet to support the human population, whereas consuming and surviving on plants is an evolved and intelligent way to feed the planet. If you consume mostly raw foods, then you also get outstanding nutrition. Cooking food destroys much of its nutritional content -- not only the proteins, but also the vitamins and the phytonutrients that make plants such a potent nutrition source in the first place.

If you can avoid cooking some of these foods, and subsist at least partially on a live foods diet -- as I have been doing now for some time -- you find that you need a lot less food, get much better nutrition, and don't really need any meat. That includes even very active lifestyles like my own, which involve strength training, Pilates, lots of running, martial arts and cycling.

The bottom line is that I am a cautious supporter of this idea of artificial meat production because of the practicalities involved. People will continue to consume meat on the planet for the time being. If that is the case, then I believe that we are much better off having people consume artificial meat than tearing the flesh from living, breathing beings and calling that dinner. Artificial meat has my vote even though, personally, I would never touch it with a fork. I support it only because it is a practical alternative to meat taken from live animals

artificial-meat-grown-in-lab-on-plates-within-five-years/

ARTIFICIAL MEAT GROWN IN LAB ON PLATE WITHIN FIVE YEARS
The days when the human population ate all natural ingredients are long gone. Most foodstuffs we consume these days contain additives, preservatives, or other such chemically produced substances for reasons of taste, longevity, or cost. And soon all our food could be artificially engineered, including animal meat.

One of the ever-popular fad diets around now consists of eating food we’d have consumed thousands of years ago. So, nuts, beans, pulses, fruit, and vegetables are eaten in place of the chemically enhanced garbage many of us shove down our throats currently. Unfortunately, the human race is moving ever further away from that kind of diet, with science increasingly being turned to.

The latest move towards an artificially produced diet has now occurred in a laboratory in the Netherlands. According to The Times, Dutch scientists have grown a form of meat artificially for the first time. The meat has been described as “soggy pork” and in its current state isn’t going to turning up on the menu at your favorite restaurant. But it may do in the near future.

The researchers extracted cells from the muscle of a live pig and incubated them in an animal product broth. The cells then multiplied to create muscle tissue. At the moment the result is a sticky substance that would need exercising like normal muscle to turn it into a meat we could recognize.

Mark Post, professor of physiology at Eindhoven University, the man leading the experiments, said

You could take the meat from one animal and create the volume of meat previously provided by a million animals. What we have at the moment is rather like wasted muscle tissue. We need to find ways of improving it by training it and stretching it, but we will get there. This product will be good for the environment and will reduce animal suffering. If it feels and tastes like meat, people will buy it.

If it’s cheap then yes, they probably will, and it could be on sale within five years. However, the idea of eating artificially created meat isn’t exactly setting my taste buds on edge at this point. Then again, the sheer number of advantages by growing meat rather than breeding animals to slaughter for meat means the idea should definitely be considered.

Artificial meat would cut greenhouse gases and help the environment, animals would no longer be treated inhumanely and grown purely for food, and the lessening of livestock would free up the considerable amount of land they currently take up being farmed. Hell, even vegetarians are for the idea assuming the process was properly governed. The Vegetarian Society said:

The big question is how could you guarantee you were eating artificial flesh rather than flesh from an animal that had been slaughtered. It would be very difficult to label and identify in a way that people would trust.

Part of me thinks we should leave nature well alone but the advantages tell me otherwise. It all comes down to whether artificial meat will ever be accepted both in terms of taste and ethics. If so then farming could be about to be revolutionized


Fake Meat Update, or lack of


A few months ago, the Taiwanese government reportedly performed spot checks on several fake-meat "vendors" (whatever that means) and found that over half contained real animal products. Follow-up tests and investigations were promised, but have not been released or reported on so far.

While it made the briefly section in Taiwan's largest English (and in my opinion best) newspaper, the Taipei Times, and the Taiwan News (another good paper), it created somewhat of a stir in vegan circles around the world, as much if not most of the world's fake meat is made here in Taiwan. Anyone who ate fake meats at Chinese vegetarian restaurants (most of which are in fact Taiwanese, no Chinese), had to wonder whether the too-good-to-be-true fake meat actually was.

If it really was over 50%, we could expect the Buddhist population in Taiwan to be up in (peaceful) arms about it, however, no such reaction has been noticed. Then again, most of Taiwanese vegetarian dining population are not actually vegetarian, but simply eat at vegetarian restaurants at certain times, as dictated by their local customs and religions. It may be that these "vendors" were all non-vegetarian suppliers, and that food at Buddhist restaurants, if made by Buddhist companies, is safe. There is really not enough information to draw any conclusions, but certainly enough for concern.

Though I have been unable to get to the bottom of it, I have paid much more attention to the ingredients of fake meat in grocery stores. The majority contains milk (in fitting with the fact that Buddhists eat dairy products) and some contains egg (because the I Kuan Tao religion also eat egg products). It also often contains many less than healthy ingredients. It should not really be surprising that dairy, usually whey (or whey protein) is added to soy products meant to have the taste and texture of animal flesh. I highly doubt that many, if any, Chinese/Taiwanese vegetarian resaurants which promise "we use no dairy or egg" check the ingredients of their fake meat for whey. Buddhist-run restaurants probably will check the ingredients for egg, however.

One highly trustworthy exception to this rule is again, the wonderful followers of the "Supreme Master" Ching Hai, in particular their Loving Huts (website in Chinese only, but see my article on the chain here). Her followers (should that be devotees?) are strictly vegan (or fast going vegan) and owners of Loving Hutts are meticulous about checking that their ingredients are vegan.

So, in the absence of any real conclusion, but given that business in Taiwan is less than honest, most people eating vegetarian at any given time are not vegetarian themselves (all the time) and very few are vegan, I do not recommend eating fake meat from unknown sources in Taiwan (or eating anything from China at all). In Taiwan, I usually only eat fake meat at restaurants run by Ching Hai followers. For vegans abroad, inconvenient though this may be, I would not recommend eating any imported fake meats from Asia at all, and instead sticking to ones made by local veg'n companies, unless it is at a restaurant run by Ching Hai followers. Sadly, that sweet-and-sour Chicken you've been eating at your local Chinese vegetarian restaurant probably contains whey, and might just contain a little chicken, too.Vegetarian shark fin soup anyone?


Artificial Meat Could Be Grown on a Large Scale


by Fraser Cain on July 6, 2005

A magnified view of muscle fibres. Image credit: UM. Click to enlarge.

Experiments for NASA space missions have shown that small amounts of edible meat can be created in a lab. But the technology that could grow chicken nuggets without the chicken, on a large scale, may not be just a science fiction fantasy.

In a paper in the June 29 issue of Tissue Engineering, a team of scientists, including University of Maryland doctoral student Jason Matheny, propose two new techniques of tissue engineering that may one day lead to affordable production of in vitro – lab grown — meat for human consumption. It is the first peer-reviewed discussion of the prospects for industrial production of cultured meat.

“There would be a lot of benefits from cultured meat,” says Matheny, who studies agricultural economics and public health. “For one thing, you could control the nutrients. For example, most meats are high in the fatty acid Omega 6, which can cause high cholesterol and other health problems. With in vitro meat, you could replace that with Omega 3, which is a healthy fat.

“Cultured meat could also reduce the pollution that results from raising livestock, and you wouldn’t need the drugs that are used on animals raised for meat.”

Prime Without the Rib

The idea of culturing meat is to create an edible product that tastes like cuts of beef, poultry, pork, lamb or fish and has the nutrients and texture of meat.

Scientists know that a single muscle cell from a cow or chicken can be isolated and divided into thousands of new muscle cells. Experiments with fish tissue have created small amounts of in vitro meat in NASA experiments researching potential food products for long-term space travel, where storage is a problem.

“But that was a single experiment and was geared toward a special situation – space travel,” says Matheny. “We need a different approach for large scale production.”

Matheny’s team developed ideas for two techniques that have potential for large scale meat production. One is to grow the cells in large flat sheets on thin membranes. The sheets of meat would be grown and stretched, then removed from the membranes and stacked on top of one another to increase thickness.

The other method would be to grow the muscle cells on small three-dimensional beads that stretch with small changes in temperature. The mature cells could then be harvested and turned into a processed meat, like nuggets or hamburgers.

Treadmill Meat

To grow meat on a large scale, cells from several different kinds of tissue, including muscle and fat, would be needed to give the meat the texture to appeal to the human palate.

“The challenge is getting the texture right,” says Matheny. “We have to figure out how to ‘exercise’ the muscle cells. For the right texture, you have to stretch the tissue, like a live animal would.”

Where’s the Beef?

And, the authors agree, it might take work to convince consumers to eat cultured muscle meat, a product not yet associated with being produced artificially.

“On the other hand, cultured meat could appeal to people concerned about food safety, the environment, and animal welfare, and people who want to tailor food to their individual tastes,” says Matheny. The paper even suggests that meat makers may one day sit next to bread makers on the kitchen counter.

“The benefits could be enormous,” Matheny says. “The demand for meat is increasing world wide — China ‘s meat demand is doubling every ten years. Poultry consumption in India has doubled in the last five years.

“With a single cell, you could theoretically produce the world’s annual meat supply. And you could do it in a way that’s better for the environment and human health. In the long term, this is a very feasible idea.”

Matheny saw so many advantages in the idea that he joined several other scientists in starting a nonprofit, New Harvest, to advance the technology. One of these scientists, Henk Haagsman, Professor of Meat Science at Utrecht University, received a grant from the Dutch government to produce cultured meat, as part of a national initiative to reduce the environmental impact of food production.

Other authors of the paper are Pieter Edelman of Wageningen University , Netherlands ; Douglas McFarland, South Dakota State University ; and Vladimir Mironov, Medical University of South Carolina.

Original Source: UM News Release

Article history


A sea of shoppers and vendors in Lagos, Nigeria. With the world population forecast to hit 9 billion people by 2050 novel ways to increase food production will be needed, say scientists. Photograph: James Marshall/Corbis

Artificial meat grown in vats may be needed if the 9 billion people expected to be alive in 2050 are to be adequately fed without destroying the earth, some of the world's leading scientists report today.

But a major academic assessment of future global food supplies, led by John Beddington, the UK government chief scientist, suggests that even with new technologies such as genetic modification and nanotechnology, hundreds of millions of people may still go hungry owing to a combination of climate change, water shortages and increasing food consumption.

In a set of 21 papers published by the Royal Society, the scientists from many disciplines and countries say that little more land is available for food production, but add that the challenge of increasing global food supplies by as much as 70% in the next 40 years is not insurmountable.

Although more than one in seven people do not have enough protein and energy in their diet today, many of the papers are optimistic.

A team of scientists at Rothamsted, the UK's largest agricultural research centre, suggests that extra carbon dioxide in the air from global warming, along with better fertilisers and chemicals to protect arable crops, could hugely increase yields and reduce water consumption.

"Plant breeders will probably be able to increase yields considerably in the CO2 enriched environments of the future … There is a large gap between achievable yields and those delivered ... but if this is closed then there is good prospect that crop production will increase by about 50% or more by 2050 without extra land", says the paper by Dr Keith Jaggard et al.

Several studies suggest farmers will be up against environmental limits by 2050, as industry and consumers compete for water. One group of US scientists suggests that feeding the 3 billion extra people could require twice as much water by then. This, says Professor Kenneth Strzepek of the University of Colorado, could mean an 18% reduction in worldwide water availability for food growing by 2050.

"The combined effect of these increasing demands can be dramatic in key hotspots [like] northern Africa, India, China and parts of Europe and the western US," he says.

Many low-tech ways are considered to effectively increase yields, such as reducing the 30-40% food waste that occurs both in rich and poor countries. If developing countries had better storage facilities and supermarkets and consumers in rich countries bought only what they needed, there would be far more food available.

But novel ways to increase food production will also be needed, say the scientists. Conventional animal breeding should be able to meet much of the anticipated doubling of demand for dairy and meat products in Asia and sub-Saharan Africa, but this may not be enough.

Instead, says Dr Philip Thornton, a scientist with the International Livestock Research Institute in Nairobi, two "wild cards" could transform global meat and milk production. "One is artificial meat, which is made in a giant vat, and the other is nanotechnology, which is expected to become more important as a vehicle for delivering medication to livestock."

Others identify unexpected hindrances to producing more food. One of the gloomiest assessments comes from a team of British and South African economists who say that a vast effort must be made in agricultural research to create a new green revolution, but that seven multinational corporations, led by Monsanto, now dominate the global technology field.

"These companies are accumulating intellectual property to an extent that the public and international institutions are disadvantaged. This represents a threat to the global commons in agricultural technology on which the green revolution has depended," says the paper by Professor Jenifer Piesse at King's College, London.

"It is probably not possible to generate sufficient food output or incomes in much of sub-Saharan Africa to feed the population at all adequately … For least developed countries there are prospects of productivity growth but those with very little capacity will be disadvantaged."

Other papers suggest a radical rethink of global food production is needed to reduce its dependence on oil. Up to 70% of the energy needed to grow and supply food at present is fossil-fuel based which in turn contributes to climate change.

"The need for action is urgent given the time required for investment in research to deliver new technologies to those that need them and for political and social change to take place," says the paper by Beddington.

"Major advances can be achieved with the concerted application of current technologies and the importance of investing in research sooner rather than later to enable the food system to cope with challenges in the coming decades," says the paper led by the population biologist Charles Godfray of Oxford University.

The 21 papers published today in a special open access edition of the philosophical transactions of the royalsociety.org are part of a UK government Foresight study on the future of the global food industry. The final report will be published later this year in advance of the UN climate talks in Cancun, Mexico












 

Monday, April 11, 2011

Man To Make Fake Egg

Cases of problem foods and food poisoning are widely reported in Mainland China over the last few years. In 2001, there were 185 cases of food poisoning, affecting about 15,715 people and causing 146 deaths. The cases doubled in 2002. In 2003, the number of reported cases was ten times more than that in 2001, and the number of people suffered was as high as 29,660, including 262 deaths Now In Sept 2008 Nearly 53,000 Chinese children sick from contaminated milk; 4 have died


Manufacturing fake eggs
In China there are fake schools and classes that teach a variety of blatant fraud technology, even eggs can be modulated by chemical materials, but also be able to fry cook, is currently the most popular False course.



Step 1 modulation of raw materials

Using 7 kinds of chemical materials, see pic below


Fake egg was made from calcium carbonate, starch, resin, gelatin, alum and other chemical products.

Step 2 egg production

Raw egg into the mold to 2 / 3 full, put calcium chloride, colouring die, the egg appears on the film been announced.


The 'yolk' is shaped in the round mould. 'Magic water' containing calcium chloride is used.



By adding a yellow pigment and become raw egg yolk.

Step 3 fake egg shape
In the mold into 1 / 3 raw egg white, like the first package, like dumplings into the egg yolk, egg white into another, into the magic water, a shell eggs will come slowly. Naked egg shape to 1 hour to dry after washing with water, at shells ready.


To make the egg white, various ingredients, including a powder and alum, are mixed together.

Step 4
Sewing lines through the use of eggs, immersed in paraffin wax, calcium carbonate, such as modulation of the eggshell into a solution, repeated several times until the shell a little dry, immersion in cold water pumping line shape, this point, the egg has been put on a false cloak , You're done.

Hard shells are formed by soaking in paraffin wax onto the egg, which are then left to dry.


Oh yeah The Egg is ready. The artificial egg shell is very fragile and break easily but who cares!!
Look so real

Many small bubbles is formed during frying the egg but not many people can tell the difference. The egg look exactly the same, and the eggs taste better than real but you are adding to the statistic of food poisoning person.

Why make fake eggs ?

Because of money. [The cost of fake egg is only 0.55 Yuan/kg, while the true eggs’ market price is 5.6 Yuan/kg]

How To Make False Egg

Make a False Egg


From Wired How-To Wiki You have new messages (last change).
1 Keep Your Dinner Guests Guessing with a Soft-Boiled Mystery

2 False Egg Recipes

2.1 Brown Butter Hollandaise Sauce

2.2 Reheatable Hollandaise Sauce

2.3 Cauliflower Puree

2.4 False Egg



Keep Your Dinner Guests Guessing with a Soft-Boiled Mystery

Illustration by Robert HansonForget themed dinner parties. Wow your friends with a chemically goosed false egg. "I love the element of surprise," says chef Alexander Talbot, who created the recipe. "It looks just like a poached egg." The key is Methocel A4C and Methocel F50 — available online — which turn purees (here, cauliflower and hollandaise) into tasty gels that keep your guests guessing.

1 White: Puree 500 grams of cooked cauliflower. While it's still hot, stir in 5 grams of Methocel A4C. Refrigerate until cold.
2 Yolk: Prepare 400 grams of hollandaise sauce. Heat 100 grams of water to a simmer. Stir in 5 grams of Methocel F50, then blend the mixture into the sauce. Refrigerate in a squeeze bottle until cold.
3 Stretch plastic wrap over a small teacup and coat with a layer of white.
4 Squirt on a dollop of yolk.
5 Gently add another layer of white.
6 Gather the plastic wrap into a "purse" and tie with twine.
7 Drop into simmering water for about five minutes or until the packet feels firm. Snip off the plastic wrap to reveal a quivering surprise.

False Egg Recipesfunny quotes


Brown Butter Hollandaise Sauce 220g/8oz butter
35g/1.25 oz lemon juice
20g/0.7oz lime pickle
4g salt
104g/3.65oz/2 whole eggs
18g/0.63oz/1 egg yolk

Melt the butter in a small sauté pan and cook until the milk solids have turned golden brown. Remove the butter from the heat immediately and let cool slightly. Combine the remaining ingredients in a blender and puree. While the blender is running, slowly drizzle the hot brown butter into the mixture, creating a rich and creamy hollandaise sauce. It will be well seasoned because we will be diluting it by 25 percent to create the reheatable hollandaise.

Reheatable Hollandaise Sauce

370g/13oz hollandaise sauce
92.5g/3.25oz water
4.62g/0.16oz Methocel F50 (1 percent of the total weight of hollandaise and the water)

While the hollandaise sauce is still warm, bring the water to a boil. Sprinkle the Methocel over the water and whisk it into the water. When the Methocel is dispersed, turn the blender on low and slowly drizzle the water into the hollandaise sauce. Increase the speed of the blender and shear the mixture into the hollandaise sauce until it is fully incorporated and looks well blended with a slight sheen. Once the Methocel is fully dispersed, place the mixture in a bowl over an ice bath to chill. It should be chilled to 10°C/50°F and then rest in refrigeration for at least 20 minutes before using. The sauce will keep for up to two days in refrigeration.

Cauliflower Puree

420g/14.8oz cauliflower
225g/8oz milk
50g/1.75oz cream cheese
4g/0.14oz/2/3t salt
0.75% Methocel A4C

Cut the cauliflower into small pieces so that it can cook quickly. Combine the cauliflower, milk, and cream cheese in a pot and simmer until the cauliflower is soft and tender. When the cauliflower is tender put the entire mixture into a blender. Puree the mixture in a blender. Weigh the mixture in the blender (it helps to know what your blender top weighs so calculations may be made from the blender).

Weigh the hot puree and calculate 0.75 percent of the total weight. Weigh out that amount of Methocel A4C and shear it into the puree using a blender. In this recipe we end up with 450g/15.85oz of cauliflower puree and the amount of Methocel we calculated is 3.375g/0.12oz. Turn the blender onto low and increase the speed until a vortex forms in the puree. Sprinkle the Methocel into the vortex to evenly disperse it into the cauliflower puree. Be sure to puree it until the Methocel is completely dispersed and the mixture looks well blended with a slight sheen. Cool mixture to below 10°C/50°F. Let it rest in refrigeration for at least 20 minutes before using.

False Egg

Reheatable hollandaise sauce

Cauliflower puree

Cut eight squares of plastic wrap 15.25cm/6in square. Place a spoonful of cauliflower puree into the center of each piece of plastic wrap. Spread the mixture into a circle on the plastic so that it reaches to two-thirds of the edges and is 7.5mm/0.3in thick. Place a spoonful of hollandaise sauce the size of an egg yolk in the center of the cauliflower puree. Pull the edges of the plastic wrap up together pulling the cauliflower puree around the hollandaise sauce. Twist the plastic wrap so that the cauliflower encompasses the hollandaise sauce and the parcel looks like a beggars purse. Use a piece of twine to tie the plastic in place keeping the parcels shape secure. Place the tied false eggs in the freezer until ready to serve.

To heat, drop the false eggs into a water bath or a pot of water warmed to 52°C/125°F. Let the eggs cook for 10 minutes until the Methocel gels and they are heated through. The cauliflower will set and resemble the texture of an egg white while the hollandaise sauce will thicken and still be fluid.

Saturday, April 9, 2011

Food safety issue MALAYSIA & INTERNATIONAL

Medicalnewstoday E. coli An Unlikely Contaminant Of Plant Vascular Systems A technique developed by U.S. Department of Agriculture (USDA) scientists for tracking pathogens has helped confirm that Escherichia coli is not likely to contaminate the internal vascular structure of field-grown leafy greens and thus increase the incidence of foodborne illness. Agricultural Research Service (ARS) microbiologist Manan Sharma wanted to find out if plant roots could draw in E. coli pathogens from the soil when taking in nutrients and water. He and colleagues modified several types of E. coli - including some highly pathogenic strains that cause foodborne illness - by adding a gene for fluorescence. This allowed them to track the pathogen's journey from the field to the produce Food regulation Medicalnewstoday

Calorie Labeling In Chain Restaurant Menus And Vending Machines, FDA Proposal In what is seen as a serious effort to tackle America's obesity epidemic, the FDA is proposing compulsory calorie labeling on the menus of chain restaurants, vending machines and some other food retail outlets. Members of the public, experts, associations and advocacy groups are invited to offer suggestions by visiting a specific web page. In a communiqué issued by the FDA (Food and Drug Administration) yesterday, the proposal will include chain restaurants and other similar retail food outlets.The Agency would like customers to be able to view calories listed in restaurants and food retail outlets which form part of a chain consisting of at least 20 locations which trade under the same name and have substantially similar menus. Such outlets may include fast food restaurants, coffee shops, some grocery and convenience stores, and bakeries. Businesses whose main purpose of business is not food, but also sell food will not be included, such as airports, movie theatres, and sports centers (e.g. bowling alleys).The FDA is also inviting members of the public to make suggestions on anything that might improve the proposal, such as adding other types of food outlets which the current proposal may have missed out.Another proposed rule would include compulsory calorie information in food sold through vending machines. Comments are invited on both proposals.

Food research Foodproductiondaily Nano-biosensors to boost detection of foodborne pathogens- research A nano-based biosensor that could be used for early stage detection of foodborne pathogens such as E.coli and salmonella is under development by scientists in the US. Nano-based biosensor under development at Kansas State University. Researchers at Kansas State University are using carbon nanofibres (CNF) as part of the biosensors to detect the bacteria, an application which could have a huge take up in the state’s huge meat processing sector, they said. Jun Li, associate professor of chemistry, and doctoral student Lateef Syed, said they chose CNFs because they are able to form an array of tiny electrodes even smaller than bacteria and viruses. When these microbial particles are captured at the electrode surface, an electric signal can be detected. The associate professor said the technology could be brought to market in around two years.

Food regulation Foodqualitynews TB fraud prompts FSA reminder on raw milk rules The Food Standards Agency (FSA) has issued a reminder to local authorities and dairy businesses on the rules governing the sale of raw milk after some UK farmers were found to have been swapping ear tags that mark out cows infected with tuberculosis (TB).Evidence has emerged that some farmers in the South West of England and the Midlands have been illegally swapping ear tags to keep TB-positive animals in their herds and send less productive animals to slaughter.

New product development Foodnavigator Oil-hydrocolloid mix may cut trans fats without affecting quality: Study The hydrogenated fat content of bakery products may be reduced by replacing trans fats with sunflower or coconut oils, and still maintain characteristics similar to ‘full-fat’ products, says new research. Replacing hydrogenated fats with sunflower oil or coconut oil increased the polyunsaturated fat content by over 40 percent, but hydrocolloids were needed to ensure the quality characteristics of the cake. Writing in the Journal of Texture Studies, researchers from the Central Food Technological Research Institute (CFTRI), India, explained that more people becoming aware of the relationship between the consumption of hydrogenated trans fats and coronary heart disease. As a result, they said that “continuous attempts” are being made by the food industry to redesign and reformulate products to eliminate or replace hydrogenated fats

General information Foodnavigator International food risk communication center formed International food safety authorities have set up a new organization with the aim of creating a collective international resource providing communication materials about food risks along the supply chain. The organization, the International Center of Excellence in Food Risk Communication (ICEFRC), includes global food and health organizations, government agencies, academic institutions, and non-profit communication experts. The founding partners include four US-based organizations – the International Food Information Council Foundation, the Joint Institute for Food Safety and Applied Nutrition, the National Center for Food Protection and Defense, and the United States Department of Agriculture – as well as Health Canada, and Food Standards Australia New Zealand.

Food safety issue (radioactive issue) Online news-thestar Japan says it may take months to end radiation leaks TOKYO (Reuters) -Japan's government warned on Sunday it may take months to stop radiation leaking from a nuclear plant crippled by a huge earthquake and tsunami three weeks ago, as more bodies were recovered in devastated areas of northeast Japan.A worker wearing a protective suit walks near the damaged pit at the crippled Fukushima Daiichi Nuclear Power Plant No. 2 reactor in Fukushima prefecture, northern Japan April 2, 2011 in this handout photo released by Japan's Nuclear and Industrial Safety Agency on April 3, 2011. (REUTERS/Nuclear and Industrial Safety Agency/Handout).An aide to embattled Prime Minister Naoto Kan said the government's priority was to stop radiation leaks which were scaring the public and hindering work on cooling overheated nuclear fuel rods

Food safety issue (radioactive issue) Online news-
bharian Jurutera gagal tutup rekahan loji TOKYO: Jurutera semalam gagal menutup rekahan yang menyebabkan air tercemar radiasi mencurah ke dalam Lautan Pasifik dari loji jana kuasa nuklear yang musnah akibat gempa bumi dan tsunami bulan lalu, namun pencarian di tapak itu tidak menemui kebocoran lain semalam. Gambar diedarkan syarikat pengendali loji, Tokyo Electric Power Co (TEPCO), menunjukkan air memancut daripada dinding dan menyembur ke laut. Air tercemar itu segera larut dengan air laut, mungkin membahayakan kepada pekerja loji itu. Lopak air di loji nuklear Fukushima Dai-ichi, yang dipercayai datangnya dari teras reaktor, berulang kali memaksa juruteknik berundur dan menangguhkan tugas.

General information Online news-
bharian Lembu keluar susu manusia LONDON: Saintis sudah mencipta ternakan yang diubah secara genetik yang menghasilkan susu 'manusia' dalam cubaan menjadikan susu lembu lebih berkhasiat. Saintis memperkenalkan gen manusia ke dalam 300 lembu tenusu untuk menghasilkan susu dengan khasiat sama seperti susu ibu. Susu ibu mengandungi kuantiti tinggi nutrisi penting yang membantu menaikkan sistem pertahanan badan bayi dan mengurangkan risiko jangkitan. Saintis di balik penyelidikan itu percaya susu dari ternakan lembu yang diubah suai secara genetik mungkin menghasilkan satu alternatif terhadap susu ibu dan susu formula untuk bayi, yang sering dikritik sebagai bermutu rendah.

Recall (allergen) FSA Sainsbury's withdraws some Freefrom Chocolate Sponge Pudding Sainsbury’s has withdrawn its Freefrom Chocolate Sponge Pudding with a'best before' date of 13 April 2011, because the product contains low levels of milk protein. Milk is not an intended ingredient and this makes the product a possible health risk for anyone who is allergic to or intolerant of milk.

Recall (allergen) CFIA

UNDECLARED PEANUTS IN CERTAIN DOCTOR'S CARBRITE DIET CHOCOLATE BROWNIE BARS OTTAWA, April 1, 2011 - The Canadian Food Inspection Agency (CFIA) is

warning people with allergies to peanuts not to consume the Doctor's CarbRite Diet Chocolate Brownie bars described below. The affected product contains peanuts which are not declared on the label.The affected product, Doctor's CarbRite Diet Chocolate Brownie bars are sold in 56.7 g (2.00 oz) packages, bearing UPC 0 39442 08112 4 and code EXP101211.This product may have been distributed nationally.

Food regulation FSA

FDA proposes draft menu and vending machine labeling requirements, invites public to comment on proposals The U.S. Food and Drug Administration today issued two proposed regulations regarding calorie labeling on menus and menu boards in chain restaurants, retail food establishments, and vending machines. The FDA invites input on the proposed regulations by visiting http://www.regulations.gov1/.“These proposals will ensure that consumers have more information when they make their own food choices,” said Department of Health and Human Services Secretary Kathleen Sebelius. “Giving consumers clear nutritional information makes it easier for them to choose healthier options that can help fight obesity and make us all healthier.”

Food regulation EFSA Scientific Opinion on Flavouring Group Evaluation 86, Revision

1 (FGE.86Rev1): Consideration of aliphatic and aromatic amines and amides evaluated by JECFA (65th meeting) The European Food Safety Authority (EFSA) asked the Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (the Panel) to provide scientific advice to the Commission on the implications for human health of chemically defined flavouring substances used in or on foodstuffs in the Member States. In particular, the Panel was requested to consider the Joint FAO/WHO Expert Committee on Food Additives (the JECFA) evaluations of flavouring substances assessed since 2000, and to decide whether no further evaluation is necessary, as laid down in Commission Regulation (EC) No 1565/2000. These flavouring substances are listed in the Register, which was adopted by Commission Decision 1999/217/EC and its consecutive amendments.The present consideration concerns 34 aliphatic and aromatic amines and amides evaluated by the JECFA (65th meeting). The Panel concluded that no corresponding FGE is available.

Recall (microb) FSIS Minnesota Firm Recalls Turkey Burger Products Due to Possible Salmonella Contamination WASHINGTON, April 1, 2011 -Jennie-O Turkey Store, a Willmar, Minn.establishment, is recalling approximately 54,960 pounds of frozen, raw turkey burger products that may be contaminated with Salmonella, the U.S. Department of Agriculture’s Food Safety and Inspection Service (FSIS) announced today. As FSIS continues its investigation of illnesses related to this recall, additional raw turkey products may be recalled. As a result, FSIS is alerting consumers to take extra care when preparing all raw turkey products.

Food regulation EFSA Updated technical specifications for harmonised reporting of food-borne outbreaks through the European Union reporting system in accordance with Directive 2003/99/EC In the analyses of the reported data on food-borne outbreaks at the European Union level it is important to address the relevance of different food categories as outbreak vehicles and the causative agents most frequently associated with these food vehicles. This report includes an update of the technical specification for harmonised reporting of food-borne outbreaks to the European Union, which allow to better achieve their objectives. The distinction between “verified” and “possible” food-borne outbreaks is abandoned in the reporting. Member States shall report all food-borne outbreaks which meet the definition in the Directive 2003/99/EC. In case of food-borne outbreaks where no particular food vehicle is suspected and for food-borne outbreaks where the evidence implicating a particular food vehicle is weak only a limited dataset is reported. This includes the number of outbreaks per causative agent and the number of human cases, hospitalisations and deaths. A detailed dataset is to be reported for food-borne outbreaks where the evidence implicating a particular food vehicle is strong, based on an assessment of all available evidence. The information to be reported for these outbreaks includes the nature of the evidence to support the link between cases of disease in humans and the food vehicle as well as data on causative agents, food vehicles and the factors in food preparation and handling that contributed to the food-borne outbreaks. Food research MASU Lower BPA By Choosing Fresh Over Canned Foods A new study has some promising news on how we can control our exposure. It shows that we can reduce our exposure to BPA – in a relatively short period of time – simply by making some smart choices at the grocery store. The study had five families stop using canned and plastic food packaging for a few days and instead they ate organic food and meals stored in glass or stainless steel containers. After just three days, the families’ BPA levels dropped and average of 60%. However, as soon as the families went back to their regular diets, their BPA levels went up again. Food regulation MASU FDA advisers want more study of food dye-ADHD link A Food and Drug Administration advisory committee decided Thursday there is insufficient evidence to support a link between artificial dyes in foods and children with ADHD. The committee will make no recommendation to ban or regulate dye additives found in food products. But the committee did stress that there seems to be a trend with artificial dyes and side effects in children and that more research is needed.

General information consumer.healthday Research Warns of Overuse of Powerful Class of Antibiotics SUNDAY, April 3 (HealthDay News) -- The use of a powerful class of antibiotics called carbapenems has increased dramatically in the United States over the past five years, a new study shows.The increased use of these drugs -- widely regarded as the last option for treating severe infections caused by multidrug-resistant bacteria -- is cause for concern because carbapenem-resistant bacteria are becoming more common, the researchers said. Overuse of carbapenem drugs could lead to the reduction of their effectiveness against tough-to-treat infections.

Food regulation Foodnavigator UK pressure group backs proposed EU labelling amendment A UK pressure group against the use of processing aids in bread production is backing a proposed amendment to EU regulation that will require foods frozen, and then defrosted before sale, to be labelled ‘defrosted’. The proposed revision to the EU Food Information Regulation (FIR), adopted by the EU Council at its first reading last month, will enable greater transparency over the marketing of par baked loaves in particular, claims the Real Bread Campaign. The amendment, should it be carried, would represent a significant change to existing EU labelling laws (Directive 2000/13/EC) where you only label goods as 'defrosted' (chicken, for instance) when it is believed the absence of such a designation could potentially mislead the consumer.

Food regulation Nutraingredients Lobbying intensifies ahead of MEP omega-3 infant health claim vote Lobbying is ratcheting up ahead of next week's European Parliament (EP) vote on whether to permit a European Food Safety Authority (EFSA) and European Commission (EC)-approved claim linking omega-3 form DHA and infant eye health. Will DHA-based infant visual development claims be allowed in the European Union? Eyes will turn to the European Parliament which must vote on the matter next week.The claim submitted by infant formula maker Mead Johnson won in 2009 an EFSA positive opinion for visual development in infants up to 12 months if products contained at least 0.3 per cent of their fatty acid content in DHA (docosahexaenoic acid). The claim was then validated at EC committee level, but an EP committee last month narrowly voted to oppose it (30-28) and next week the Parliament will vote on whether to send the claim to the EU legislature or to scrap it.

Food regulation Perishablenews Gluten Free Community Seeks Resolution To Overdue FDA Labeling Regulations Columbia, MD - Prominent members of the burgeoning gluten-free community announced today a collaborative “1in133” event on May 4 to bake the world’s largest gluten-free cake as part of an effort to draw attention to the Food and Drug Administration’s (FDA) delay in finalizing standards for gluten-free food labeling. The name is derived from the fact that one in every 133 people in the U.S. suffers from celiac disease or a gluten intolerance issue.

Food safety issue Foodsafety.net 03/04/11: Food safety in school canteen Malaysian schools are expected to provide a safe environment for children in all aspects of safety, especially food.If, like the Health Minister says, about half of all food poisoning cases occur in schools, then why hasn’t the ministry done anything about it, except talk and provide shocking figures.It is alarming that 5,496 students or almost 10 per cent of the 57,364 students, were exposed to the risk, as disclosed by Datuk Seri Liow Tiong Lai yesterday.

Food safety issue SCPINET Food Companies (Cosmetic) Use of Synthetic Food Dyes: The Case of Cancer and Ammonia Process Caramel in Soft Drinks OTTAWA (March 31, 2011)-Ammonia process caramela synthetic dye created by heating sugar in the presence of ammoniais used to give Coke, Pepsi, and other cola soft drinks their brown or black colour. In a letter to Minister of Health Leona Aglukkaq, the Centre for Science in the Public Interest (CSPI) is calling on the federal government to heed the expert opinions of the International Agency for Research on Cancer, the California Office of Environmental Health Hazard Assessment, and a cadre of top U.S. toxicologists who have raised serious concerns about two carcinogens created during the synthesis of ammonia process caramel, which cause an estimated two dozen cancer deaths annually in Canada.

Food safety issue Foodsafety.net 03/04/11: 16 suspects charged in pork scandal China’s top prosecution body has filed charges of breach of duty against 16 government officials implicated in a tainted pork scandal, while the alleged misdeeds of another 41 are still being probed. An official with the Supreme People’s Procuratorate confirmed to China Daily that investigations are being conducted into the actions of 12 civil servants, who include quarantine inspectors and animal-epidemic prevention coordinators in Central China’s Henan province, as well as four officials from the commerce bureau and animal health control department in East China’s Jiangsu province.The official, who asked to not be named, said prosecutors also have another 41 officials in Henan under scrutiny and have applied coercive measures against 72 farmers and brokers suspected of producing and selling tainted pork.

Food regulation CSPINET CSPI Hails Proposed Menu Labeling Regulations Ten years after starting a movement to put calories on chain restaurant menus and menu boards, the Center for Science in the Public Interest strongly supports the proposed menu labeling regulations released by the Food and Drug Administration. The new regulations are required by the health care reform law enacted last March, which requires chain restaurants with 20 or more outlets to post calories on menus and menu boards, and to provide additional nutrition information in writing upon request. The proposed rules released today are expected to be finalized by the end of the year.

Food regulation CSPINET Strong FDA Action on Food Dyes Urged I’m glad that after many years of denial, the Food and Drug Administration is reviewing the evidence linking synthetic food dyes to behavioral problems in children. Red 40, Yellow 5, Yellow 6, and other dyes have no useful nutritional or preservative value; their only function is cosmetic. And by "cosmetic," I mean that dyes are often used to make junk food more attractive to young children, or to simulate the presence of a healthful fruit or other natural ingredient. Surprisingly, even foods that aren’t particularly colorful—such as instant mashed potatoes or pickles—are dyed. The evidence that these petrochemicals worsen some children's behavior is convincing, and I hope that the FDA’s advisory committee will advise the agency to both require warning notices and encourage companies voluntarily to switch to safer natural colorings. (The FDA isn't asking the committee about a ban.) Having brightly colored Froot Loops, Skittles, Mountain Dews, or pickles or anything else just isn't worth putting any children at risk.

Food safety issue Foodproductdesign No Fooling: Dead Mouse Found in Energy Drink FEDERAL WAY, Wash.—A 19-year-old Washington man is suing Hansen Beverage Company claiming he found a dead mouse in a can of Monster Energy Drink after he finished drinking it. As reported by Fox News, Vitaliy Sulzhik said he finished drinking a Monster Energy Drink that he purchased at a local supermarket and realized the can wasn’t empty. After cutting the top of the can off, he discovered a dead mouse at the bottom. The incident occurred in March 2010, and the plaintiff has pictures and lab testing to support his case. The tests revealed there was no trauma or poison involved in the mouse’s death. Sulzhik's attorney said Hansen Beverage Company has declined to comment on the lawsuit.

Food regulation Foodproductdesign Resveratrol Self-Affirmed GRAS EASTON, Pa.—Fluxome announced its natural resveratrol was self-affirmed GRAS. The affirmation allows the inclusion of Fluxome Resveratrol in a range of food and beverage products. The company’s resveratrol is produced in the United States via a patented fermentation process.“The GRAS status confirms the safety and superiority of fermentation-derived products, where all process parameters are tightly controlled," said Bo Stenhuus, Ph.D., vice president compliance. “With the GRAS status in the United States, Fluxome has taken a major step forward in its process of obtaining sales approvals for Fluxome Resveratrol in other countries and regions."

Food regulation Foodproductdesign FDA Panel Opposes Warning Labels for Food Colors SILVER SPRING, Md.—The U.S. Food and Drug Administration’s (FDA) Food
Advisory Committee on March 31 voted 8-6 against recommending warning labels on foods with synthetic color additives; however, the panel did call for more studies to determine if there is a link between food colors and hyperactivity in children. As reported by Reuters, FDA will consider the committee's recommendations in the next few months and decide how to respond to the Center for Science in the Public Interest’s request to either ban food coloring or mandate warning labels.The International Food Information Council (IFIC) released a statement supporting FDA’s decision: “It was not surprised by the FDA Food Advisory Committee’s determination that artificial food colors do not cause hyperactivity in children. The scientific evidence currently does not show that food colors cause or exacerbate hyperactivity or other behavior problems in the majority of children."

Food regulation Online news-reuters UPDATE 2-US panel rejects food dye warning, asks more study SILVER SPRING, Md., March 31 (Reuters) - A possible link between artificial food dyes and hyperactivity in children warrants further study though current data is too weak to merit warning labels, a U.S. advisory panel said. An expert panel voted 8-6 on Thursday against recommending a warning on the wide range of snacks, cereals, candy, beverages and other foods brightened with artificial colors. The advisers called for more study to determine if the colors worsen hyperactivity in some kids, as a consumer group and other critics argue, keeping the door open on a debate that has concerned parents since the 1970s.

Sunday, March 20, 2011

Radioactivity

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Radioactive decay (or radioactivity) is the property of some atoms that causes them to spontaneously give off energy as particles or rays. Radioactive atoms emit ionizing radiation when they decay, meaning they have enough energy to break chemical bonds in molecules or remove tightly bound electrons from atoms, thus creating charged molecules or atoms (ions).[1]

File:Radioactive-atom.JPG
Properties


Radioactive atoms are unstable (known radionuclides). An atom is unstable (radioactive) if the forces among the particles that make up the nucleus are unbalanced--if the nucleus has an excess of internal energy. The instability of a radionuclide's nucleus may result from an excess of either neutrons or protons. An unstable nucleus will continually vibrate and contort and, sooner or later, attempt to reach stability by some combination of means:

  • Ejecting neutrons, and protons
  • Converting one to the other with the ejection of a beta particle or positron
  • Releasing the additional energy by photon (i.e., gamma ray) emission.[2]
Product

Radioactive decay occurs when the unstable nucleus emits radiation (disintegrates). The radionuclide is thereby transformed to different nuclides (often called the daughter nuclide). It will continue to decay until the forces in the nucleus are balanced. For example, as a radionuclide decays, it will become a different isotope of the same element if the number of neutrons changes and a different element altogether if the number of protons changes.


Often, when a radionuclide decays, the decay product (the new nuclide) is also radioactive. This is true for most naturally occurring radioactive materials. In order to become stable, these materials must go through many steps, becoming a series of different nuclides and giving off energy as particles or rays at each step. The series of transformations that a given radionuclide will undergo, as well as the kind of radiation it emits, are characteristic of the radionuclide. This is called a 'decay chain.'[2]

The radionuclide will undergo decay if there is a group of particles with a lower total mass that can be reached by decay or by nuclear fission (nucleus splits into smaller nuclei). All elements having an atomic number higher than 83 (the atomic number of bismuth) are radioactive. In addition, a number of elements having lower atomic numbers do have naturally occurring radioactive isotopes. Nuclear physicists have also made two synthetic elements having atomic numbers less than 83 to fill two gaps in the periodic table; both of these are radioactive


Rate


Every radioactive element or isotope decays at its own rate. The most common published statistic on the rate of decay of any radionuclide is the half-life. This is the hypothetical amount of time that must pass for half of the element or isotope to decay to its next daughter nuclide. Under normal circumstances, an isotope's half-life does not change, nor has any nuclear physicist ever produced a change in any isotope's half-life. However, the RATE Group has developed clear and convincing evidence that the half-lives of all then-naturally-occurring radioactive elements was accelerated greatly at the time of the Global Flood--and furthermore, this change might have triggered that event. (See: Accelerated decay).



Decay types

Radio nuclides of different types can be involved in several different reactions that produce radiant energy. The three main types of ionizing radiation are alpha, beta, and gamma.



1.Alpha decay- Two protons and two neutrons emitted from nucleus

2.Beta decay- A neutron emits an electron and an antineutrino and becomes a proton

3.Gamma decay- Excited nucleus releases a high-energy photon

4.Positron emission- A proton emits a positron and a neutrino and becomes a neutrino

5.Internal conversion- Excited nucleus transfers energy to an orbiting electron and ejects it

6.Proton emission- A proton is ejected from nucleus

7.Neutron emission- A neutron is ejected from nucleus

8.Electron capture- A proton combines with an orbiting electron, emits a neutrino and becomes a neutron

9.Spontaneous fission- Nucleus disintegrates into two or more random smaller nuclei and other particles

10.Cluster decay- Nucleus emits a certain type of smaller nucleus that are larger than an alpha particle

11.Double-beta decay- two neutrons emit two electrons and two antineutrons become two protons
 

Property Alpha radiation Beta radiation Gamma radiation

Symbol 42He or α 0 − 1e or β γ
Charge 2+ 1- 0
Mass 4 1/1837 0
Penetrating power Low Moderate Very high

Alpha
Alpha radiation are helium nuclei that have been emitted from a radioactive source. The Alpha particle includes two protons and two neutrons and has a 2+ charge. An alpha particle can be written as 42He or as α in nuclear equations. The atomic number of the daughter atom is reduced by 2 and its mass number is lower by 4 when an atom loses an alpha particle.[4]


For example, examine the following chemical equation. Superscripts represents the mass numbers and subscripts represents the atomic numbers.

^{238}_{ 92}\mathrm{U} \to ^{234}_{90}\mathrm{Th} + ^{4}_{2}\mathrm{He} (α emission)
 
The sum of the atomic masses of Thorium and alpha particle is equal to that of Uranium. As are the sums of the atomic numbers.[5]


Beta

There are 3 types of Beta decay: electron emission, electron capture, and positron emission. [5] During electron emission, a neutron changes into a proton with the loss of an electron. For example, 31H becomes 32He with the loss of 0-1e.

A beta particle can be written as 0-1e or β in nuclear equations. The superscript 0 shows that electron has very small mass compared to proton. Since its subscript is -1, the electron has negative charge.[6]

^{14}_{6}\mathrm{C} \to ^{14}_{7}\mathrm{N} + ^{ 0}_{-1}e (β emission)

Since Carbon-14 emits a beta particle, the nitrogen-14 atom has the same atomic mass number (both of their superscripts are same), but its atomic number is increased by 1. It means that it contains one more proton and one fewer neutron.

Gamma


A gamma ray is a high-energy photon emitted by a radioisotope. Sometimes, nuclei emit gamma rays with alpha or beta particles during radioactive decay as you can see in the following equation

^{230}_{ 90}\mathrm{Th} \to ^{226}_{ 88}\mathrm{Ra} + ^{4}_{2}\mathrm{He} + \gamma



Since gamma rays do not have any mass, it does not affect the atomic number or mass number of an atom. [7]
File:Alfa beta gamma radiation.png
 
Summary


Types of Radiation:

Alpha Particles Alpha particles can be shielded by a sheet of paper or by human skin. However, if radionuclides that emit alpha particles are inhaled, ingested, or enter your body through a cut in your skin, they can be very harmful.

Beta Particles Beta particles cannot be stopped by a sheet of paper. Some beta particles can be stopped by human skin, but some need a thicker shield (like wood) to stop them. Just like alpha particles, beta particles can also cause serious damage to your health if they enter your body. For example, if ingested, some radionuclides that emit beta particles might be absorbed into your bones and cause damage.

Gamma and X-Rays Gamma rays are the most penetrating of the three types of radiation listed here. Gamma rays usually accompany beta, and some alpha rays. Gamma rays will penetrate paper, skin, wood, and other substances. To protect yourself from gamma rays, you need a shield at least as thick as a concrete wall. This type of radiation causes severe damage to your internal organs. (X-rays fall into this category, but they are less penetrating than gamma rays.)

History of discovery


Radioactivity was first discovered by accident in 1896 by a French scientist, Henri Becquerel. He was experimenting with fluorescent and phosphorescent materials to help understand the properties of x-rays and their ability to expose photographic film, which had been discovered in 1895 by Wilhelm Roentgen. Upon seeing x-ray exposed film, he immediately thought of putting some phosphorescent rocks on photographic paper to see if it would darken the film in the same way.[8]

He exposed potassium uranyl sulfate to sunlight and then placed it on photographic plates wrapped in black paper.[9] As Becquerel had anticipated, the phosphorescent salts had produced an image on the film. He theorized that the uranium absorbed the sun’s energy and then emitted it as x-rays. His theories were proven false when it became overcast in Paris putting off further experiments for a couple of days. He placed the photographic plates and the uranium salt in a drawer and for some unknown reason, decided to develop the photographic plates anyway.[10] He was surprised to find a strong and clear image exposed onto the film, proving that the uranium emitted radiation without an external source of energy such as the sun. During this fortuitous sequence of events Becquerel had discovered radioactivity.[9]

Marie Curie, who was one of Becquerel's students and her husband Pierre, continued to study radiation while working in Becquerel's lab. While testing an ore of uranium (pitchblende), for its ability to turn air into a conductor of electricity, she discovered that a much more active element than uranium must exist within the ore. She named this new element polonium, and coined the term radioactivity to describe the process.[11] Henri Becquerel, Marie and Pierre Curie jointly received the Nobel Prize in physics in 1903 for their discovery of radioactivity and their other contributions in this area

Beneficial Uses of Radiation


This fact sheet covers the many beneficial uses of radiation. Topics covered include: medicine; scientific research; agriculture and food production; space exploration; naval propulsion; industrial uses; and consumer products and services. Total contribution to the national economy is also detailed Key Facts

􀂄 Modern society uses ionizing radiation, a form of energy abundant in nature, to provide hundreds of beneficial uses. Radioisotopes are both naturally occurring and man-made. They are used safely for medical
diagnosis and treatment, in common household products such as television sets and smoke alarms, to produce electricity, and in basic scientific research, manufacturing, minerals exploration, and agriculture.

􀂄 America’s digital economy and high standard of living would not be possible without radioactive materials. These materials make processes better, easier, quicker and cheaper. In some cases, no alternatives to radioactive materials exist.

􀂄 The U.S. Nuclear Regulatory Commission, together with state regulatory agencies, controls the use and handling of man-made radiation.

􀂄 Radioactive materials also provide substantial economic benefits. Worldwide, nuclear applications in industry alone including measurement gauges, smoke detectors and sterilization of medical supplie account for more than $40 billion each year.

Benefits of Man-Made


Radiation In the 20th century, mankind learned to use radiation to improve the quality of life. The development of nuclear technology is one of the most significant achievements of the 20th century, according to the National Academy of Engineering. Today, people use nuclear technology in nearly every field and aspect of life from medicine to manufacturing and construction, to powering common household items, to
producing electricity for one of every five U.S. homes and businesses.

Here are some of the many ways radiation benefits us all:

Medicine. According to the Society of Nuclear Medicine,

5,000 nuclear medicine centers in the United States perform nearly 18 million nuclear medicine procedures each year. These procedures prolong and improve the quality of people’s lives. Radioisotopes also are used in 100 million laboratory  tests on body fluid and tissue specimens. Today, approximately 500,000 cancer patients in the United States receive radiation treatment at some point in their therapy. Radioisotopes and X-rays aid physicians in diagnosing and treating scores of other diseases.

Nuclear medicine can evaluate the functional performance of various organs. It can do that because different organs use different specific elements more than others. For example, the thyroid uses iodine, bones take up phosphorus and muscles use a lot of potassium. In nuclear medicine, tiny amounts of a radioactive form of these elements are introduced into a patient’s body. The “radioisotopes” are picked up by specific organs, enabling a special camera to take a picture of how that organ is functioning in striking detail. For example:

􀂃 Myocardial perfusion imaging maps blood flow to the heart, allowing physicians to see whether a patient has heart disease and to determine the most effective course of treatment.

􀂃 Bone scans can detect the spread of cancer six to 18 months earlier than X-rays.

􀂃 Kidney scans are much more sensitive than X-rays or ultrasounds in fully evaluating kidney function.

􀂃 Imaging with radioactive technetium-99m can help diagnose bone infections at the earliest possible stage.

􀂃 Laboratory techniques using radioactivity can detect underactive thyroids in newborn babies, making prompt treatment possible and saving many children from mental retardation.

In higher doses, radioisotopes also help treat disease. When  former President George H.W. Bush and Mrs. Bush suffered from Graves’ disease, a thyroid condition, they were cured by drinking a form of radioactive
iodine that concentrates naturally in the thyroid and destroys in the diseased portion. This treatment is so successful that it virtually has replaced thyroid urgery.


Radioactive iodine’s widespread  use in therapy for thyroid cancer results in a lower recurrence rate than drug therapy and voids potentially fatal side effects, such as the destruction of bone marrow.