Genome-wide screening of the genes required for tolerance to vanillin,which is a potential inhibitor of bioethanol fermentation,in <Emphasis Type="Italic">Saccharomyces cerevisiae</Emphasis> |
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Authors: | Ayako Endo Toshihide Nakamura Akira Ando Ken Tokuyasu Jun Shima |
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Institution: | (1) National Food Research Institute, 2-1-12 Kannondai, Tsukuba Ibaraki, 305-8642, Japan |
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Abstract: | Background Lignocellulosic materials are abundant and among the most important potential sources for bioethanol production. Although
the pretreatment of lignocellulose is necessary for efficient saccharification and fermentation, numerous by-products, including
furan derivatives, weak acids, and phenolic compounds, are generated in the pretreatment step. Many of these components inhibit
the growth and fermentation of yeast. In particular, vanillin is one of the most effective inhibitors in lignocellulose hydrolysates
because it inhibits fermentation at very low concentrations. To identify the genes required for tolerance to vanillin, we
screened a set of diploid yeast deletion mutants, which are powerful tools for clarifying the function of particular genes. |
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