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Chang also announces that, starting today, the Impossible Foods burger is now available on the menu at Momofuku Nishi in Manhattan. It's a delicious, umami-rich win for meat-lovers and vegetarians alike who want burgers that help, not harm, the environment.
A look into how it's made:
http://www.npr.org/sections/thesalt...nt-burger-smells-tastes-and-sizzles-like-meat
Heme is an iron-containing molecule in blood that carries oxygen. It's heme that makes your blood red and makes meat look pink and taste slightly metallic.
It's highly concentrated in red meat, but it can also be found in plants. And that was the trick to giving Brown's meat-free burgers that blood-pink look when raw and meaty taste once cooked.
Brown could have extracted heme from legumes like soybeans, which contain leghemoglobin in nodules on their roots. Except, that would have been expensive and time consuming, and unearthing the plants would release carbon into the atmosphere.
So, he decided to use yeast instead. By taking the soybean gene that encodes the heme protein and transferring it to yeast, the company has been able to produce vast quantities of the bloodlike compound. Each vat of frothy red liquid in the lab holds enough heme to make about 20,000 quarter-pound Impossible Burgers. "We have to be able to produce this on a gigantic scale," says Brown.