News International Sugar Journal

Bioengineering yeast to utilise C5 sugar effectively [Registered]

One of the key challenges for researchers involved in developing cellulosic biofuels technology is securing yeast that will effectively utilize C5 sugars along with the C6 sugars released from cellulose and hemicelluloses fractions of a feedstock. Researchers at a Great Lakes Bioenergy Research Center team identified several new genes that improve yeast’s ability to use xylose, a five-carbon sugar that can make up nearly half of available plant sugars. Findings are reported in the July issue of Proceedings of the National Academy of Sciences. “Strains of yeast that are currently used for biofuel production convert xylose to ethanol slowly and…

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