来源于牛瘤胃宏基因组的木糖异构酶在酿酒酵母中高效表达特性及其强化木糖代谢能力的研究

摘要

Ethanol production from lignocelluloses is a promising alternative liquid biofuel for sustainable energy supply.As the second abundant monosaccharide,xylose metabolism pathway needs to be introduced in Saccharomyces cerevisiae to improve the efficiency of lignocelluloses ethanol production.Heterologous expression of xylose isomerase (XI) is considered as an effective strategy to establish the xylose metabolic pathway in S.cerevisiae, since the converting of xylose to xylulose catalyzed by XI is cofactor-independent and not coupling xylitol formation.