In my mind, it all started when Doc Brown introduced us to the idea that you might be able to run your car on food waste, at the very end of the original Back to the Future when he threw a banana peel and a beer can into the Mr. Fusion attachment. Ever since then, scientists have been working on ways to create fuel out of food byproducts (they may have been looking to do this before BttF came on the scene, but I'm sort of a pop culture girl, so that's my first reference).
US scientists at Syracuse University are now looking to turn whey (Little Miss Muffet, sat on her tuffet...), the liquid substance leftover from cheesemaking, into vehicle fuel. Whey is rich in lactose (dairy sugar) and since other sugary biofuels have been successfully created from food (ethanol for instances) researches think that whey could be the next frontier.
Via The Daily Green
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