Engineered Organisms for Making Cheap Sugar

One company's method for low-cost, high-yield sugar production could help biofuels compete with fossil fuels.

In a bid to make biofuels cheaper, a startup called Proterro, based in Princeton, New Jersey,  is developing a way to cut the cost of making sugar, a basic building block for ethanol. The company is engineering photosynthetic microorganisms to secrete large amounts of sugar, and it is designing a  bioreactor for growing the organisms using small amounts of water.

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