Simultaneous saccharification and cofermentation of dilute-acid pretreated yellow poplar hardwood to ethanol using xylose-fermenting Zymomonas mobilis

被引：0

作者：

McMillan, JD ^{[1
]}

Newman, MM ^{[1
]}

Templeton, DW ^{[1
]}

Mohagheghi, A ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Biotechnol Ctr Fuels & Chem, Golden, CO 80401 USA

来源：

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY | 1999年 / 77-9卷

关键词：

hydrolyzate conditioning; Zymomonas mobilis; enzymatic; saccharification; ethanol fermentation; SSCF; integrated testing;

D O I：

暂无

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Simultaneous saccharification and cofermentation (SSCF) was carried out at approximately 15% total solids using conditioned dilute-acid pretreated yellow poplar feedstock, an adapted variant of National Renewable Energy Laboratory (NREL) xylose-fermenting Zymomonas mobilis and either commercial or NREL-produced cellulase enzyme preparations. In 7 d, at a cellulase loading of 12 filter paper units per gram cellulose (FPU/g), the integrated system produced more than 3% w/v ethanol and achieved 54% conversion of all potentially available biomass sugars (total sugars) entering SSCF, A control SSCF employing Sigmacell cellulose and a commercial cellulase at an enzyme loading of 14 FPU/g achieved 65% conversion of total sugars to ethanol.

引用

页码：649 / 665

页数：17

共 32 条

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