The key to ethanol production from lignocellulosic hydrolysates: xylose-fermenting yeasts
Bioconversion of lignocellulose raw materials into ethanol has aroused extensive attention in recent years. High ethanol yields are dependcnt on co-fermentation of hexose and pentose sugars present in lignocellulosic hydrolysates. Unfortunately, the traditional ethanologenic yeast Saccharomyces cerevisiae is unable to utilize xylose and ferment it to ethanol. Hence efforts have been made to construct various recombinant yeasts to improve the ability of xylose fermentation. In this article we briefly review researches on the development of xylose-fermenting yeast strains including microorganisms for xylose fermentation, xylose metabolic pathway, metabolic engineering of S. cerevisiae, protoplast fusion and genome shuffling. Problems existing in current researches and prospects are also discussed.
xylose ethanol Saccharomyces cerevisiae metabolic engineering protoplast fusion genome shuttling
Shun-ni Zhu Zhen-hong Yuan Xin-shuZhuang Jing-liang Xu Hui-juan Xu
Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China
国际会议
广州
英文
129-135
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）