News International Sugar Journal

Yeast bioengineered to yield high output of isobutanol [Registered]

In the search for renewable alternatives to gasoline, heavy alcohols such as isobutanol are promising candidates. Not only do they contain more energy than ethanol, but they are also more compatible with existing gasoline-based infrastructure. For isobutanol to become practical, however, scientists need a way to reliably produce huge quantities of it from renewable sources. Commercial scale production of isobutanol continues to be a challenge. Recently, MIT chemical engineers and biologists have devised a way to dramatically boost isobutanol production in yeast, which naturally make it in small amounts. They engineered yeast so that isobutanol synthesis takes place entirely within…

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