Performance of a newly developed integrant of Zymomonas mobilis for ethanol production on corn stover hydrolysate

被引：75

作者：

Mohagheghi, A ^{[1
]}

Dowe, N ^{[1
]}

Schell, D ^{[1
]}

Chou, YC ^{[1
]}

Eddy, C ^{[1
]}

Zhang, M ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA

来源：

BIOTECHNOLOGY LETTERS | 2004年 / 26卷 / 04期

关键词：

corn stover; ethanol; overliming; pretreatment; Zymomonas mobilis;

D O I：

10.1023/B:BILE.0000015451.96737.96

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Efficient conversion of lignocellulosic biomass requires biocatalysts able to tolerate inhibitors produced by many pretreatment processes. Recombinant Zymomonas mobilis 8b, a recently developed integrant of Zymomonas mobilis 31821(pZB5), tolerated acetic acid up to 16 g l(-1) and achieved 82%-87% (w/w) ethanol yields from pure glucose/xylose solutions at pH 6 and temperatures of 30degreesC and 37degreesC. An ethanol yield of 85% (w/w) was achieved on glucose/xylose from hydrolysate produced by dilute sulfuric acid pretreatment of corn stover after an 'overliming' process was used to improve hydrolysate fermentability.

引用

页码：321 / 325

页数：5

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