Showing posts with label artificial meat. Show all posts
Showing posts with label artificial meat. Show all posts

Sunday, December 18, 2011

Meat Grown in a Lab to be Sold to Public Soon










Lurking in a petri dish in a laboratory in the Netherlands is an unlikely contender for the future of food. The yellow-pink sliver the size of a corn plaster is the state-of-the-art in lab-grown meat, and a milestone on the path to the world's first burger made from stem cells. Now, if this isn't enough to turn you vegetarian, nothing can. Lab-grown meat...yummy!!

Dr Mark Post, head of physiology at Maastricht University, plans to unveil a complete burger – produced at a cost of more than £200,000 ($315,817 Cdn) – this October.

He hopes Heston Blumenthal, the chef and owner of the three Michelin-starred Fat Duck restaurant in Berkshire, will cook the offering for a celebrity taster as yet unnamed.

The project, funded by a wealthy, anonymous, individual aims to slash the number of cattle farmed for food, and in doing so reduce one of the major contributors to greenhouse gas emissions. Personally, I'm not surprised that (s)he elected to remain anonymous.

"Meat demand is going to double in the next 40 years and right now we are using 70% of all our agricultural capacity to grow meat through livestock," Post said.

"You can easily calculate that we need alternatives. If you don't do anything meat will become a luxury food and be very, very expensive."

The recipe for meat grown in the lab. Image courtesy: Guardian graphics

Livestock contribute to global warming through unchecked releases of methane, a gas 20 times more potent a greenhouse gas than carbon dioxide.

At the annual meeting of the American Association for the Advancement of Science in Vancouver, Post said the burger would be a "proof of concept" to demonstrate that "with in-vitro methods, out of stem cells we can make a product that looks like and feels and hopefully tastes like meat". I'm salivating already.

Post is focusing on making beef burgers from stem cells because cows are among the least efficient animals at converting the food they eat into food for humans.

"Cows and pigs have an efficiency rate of about 15%, which is pretty inefficient. Chickens are more efficient and fish even more," Post said. "If we can raise the efficiency from 15% to 50% it would be a tremendous leap forward."

Post and his team of six have so far grown thin sheets of cow muscle measuring 3cm long, 1.5cm wide, and half a millimetre thick. To make a burger will take 3,000 pieces of muscle and a few hundred pieces of fatty tissue, that will be minced together and pressed into a patty.

Each piece of muscle is made by extracting stem cells from cow muscle tissue and growing them in containers in the laboratory. The cells are grown in a culture medium containing foetal calf serum (whatever that is), which contains scores of nutrients the cells need to grow.

The slivers of muscle grow between pieces of Velcro and flex and contract as they develop. To make more protein in the cells – and so improve the texture of the tissue – the scientists shock them with an electric current. Maybe I'm alone here; but, I don't want to eat anything that's been electrocuted first.

Post said he could theoretically increase the number of burgers made from a single cow from 100 to 100m. "That means we could reduce the number of livestock we use by 1m," he said.

If lab-grown meat mimics farmed meat perfectly – and Post admits it may not – the meat could become a premium product just as free range and organic items have.

He said that in conversations with the Dutch Society of Vegetarians, the chairman estimated half its members would start to eat meat if he could guarantee that it cost fewer animal lives.

Meat grown in the laboratory could have several advantages, because its manufacture is controlled at each step. The tissue could be grown to produce high levels of healthy polyunsaturated fatty acids, or to have a particular texture.

Because the burgers are made from animal stem cells, researchers could make products from more exotic animals. "We could make panda meat, I'm sure we could," Post said.

He believes it will be a relatively simple matter to scale up the operation, since most of the technical obstacles have already been overcome. "I'd estimate that we could see mass production in another 10 to 20 years," he said.

Friday, March 25, 2011

If This Doesn't Make You Vegetarian, Nothing Will

Photo courtesy: Dano via TreeHugger

I'm sure your gag reflexes are in full effect right now and they should be. This is a weird one. A Japanese researcher has come up with an artificial meat that's made from human feces. According to Inhabitat, Japanese scientist Mitsuyuki Ikeda has come up with a burger made from soya, steak sauce essence, and protein extracted from human feces.

Researcher Ikeda is using sewage mud or human feces as one of the main ingredients in his artificial meat. According to Inhabitat, "[t]he lipids are then combined with a reaction enhancer, then whipped into "meat" in an exploder. Ikeda then makes the poop more savory, by adding soya and steak sauce."

The following video gives the highlights.



"In the food safety world we say, 'don't eat poop,'" said Douglas Powell, a professor of food safety at Kansas State University. "But if you're going to, make sure it's cooked."

The Japanese researchers isolated proteins from bacteria in sewage. The poop-meat concoction is prepared by extracting the basic elements of food — protein, carbohydrates and fats — and recombining them.

The meat is made from 63 percent proteins, 25 percent carbohydrates, 3 percent lipids and 9 percent minerals, according to Digital Trends. Soy protein is added to the mix to increase the flavor, and food coloring is used to make the product appear red.

The researchers came up with the idea after Tokyo Sewage asked them to figure out a use for the abundance of sewage in mud, Digital Trends says.

Powell is not familiar with the researchers' method, but said he guesses that they are first heat-treating the sewage before they reap its resources.

Powell said the idea is not all that different from eating plants that have been fertilized with manure or other excrement, because the nutrients in the poop become part of the plants.

"Theoretically, there's nothing wrong with this," Powell said. "It could be quite safe to eat, but I'm sure there's a yuck factor there," he said.

However, Powell said there is the potential for cross contamination in the laboratory where the poop meat is made. That's why it's a good thing the meat will eventually be cooked.

But what if the final product was not going to be cooked?

"I wouldn’t touch it, " Powell said.

Via TreeHugger and Live Science