申请人:Khramtsov Nikolai
公开号:US20100129885A1
公开(公告)日:2010-05-27
Embodiments of the present invention include methods for the production of four carbon alcohols, specifically n-butanol, by a consolidated bioprocessing approach for the conversion of cellulosic material to the desired end product. According to some embodiments, recombinant microbial host cells are provided, preferably
S. cerevisiae
, that are capable of converting cellulosic material to butanol and include butanol biosynthetic pathway genes and cellulase genes. According to some embodiments, recombinant microbial host cells are provided, preferably
S. cerevisiae
, that are capable of converting hemicellulosic material to butanol and include cellulase genes, butanol biosynthetic pathway genes and at least one gene for the conversion of a pentose sugar.
本发明实施例包括通过综合生物加工方法生产四碳醇(特别是正丁醇)的方法,用于将纤维素材料转化为所需的最终产品。根据某些实施例,提供了重组微生物宿主细胞,优选为S. cerevisiae,能够将纤维素材料转化为丁醇,并包括丁醇生物合成途径基因和纤维素酶基因。根据某些实施例,提供了重组微生物宿主细胞,优选为S. cerevisiae,能够将半纤维素材料转化为丁醇,并包括纤维素酶基因、丁醇生物合成途径基因和至少一个用于转化戊糖糖的基因。