News International Sugar Journal

Isobutanol production from cellulose [Registered]

Using consolidated bioprocessing, a team led by James Liao of the University of California have for the first time produced isobutanol directly from cellulose. The team’s work, published online in Applied and Environmental Microbiology, represents across-the-board savings in processing costs and time, plus isobutanol is a higher grade of alcohol than ethanol. Compared to ethanol, higher alcohols such as isobutanol are better candidates for gasoline replacement because they have an energy density, octane value and Reid vapor pressure – a measurement of volatility – that is much closer to gasoline. Unlike simple feedstocks (e.g. corn based starch and cane based…

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