Continuous butanol fermentation from xylose with high cell density by cell recycling system

被引：64

作者：

Zheng, Jin ^{[1
]}

Tashiro, Yukihiro ^{[2
]}

Yoshida, Tsuyoshi ^{[1
]}

Gao, Ming ^{[1
]}

Wang, Qunhui ^{[3
]}

Sonomoto, Kenji ^{[1
,4
]}

机构：

[1] Kyushu Univ, Div Appl Mol Microbiol & Biomass Chem, Lab Microbial Technol,Dept Biosci & Biotechnol, Fac Agr,Grad Sch,Higashi Ku, Fukuoka 8128581, Japan

[2] Kyushu Univ, Div Appl Mol Microbiol & Biomass Chem, Lab Soil Microbiol,Dept Biosci & Biotechnol, Fac Agr,Grad Sch,Higashi Ku, Fukuoka 8128581, Japan

[3] Univ Sci & Technol Beijing, Dept Environm Engn, Beijing 100083, Peoples R China

[4] Kyushu Univ, Dept Funct Metab Design, Lab Funct Food Design, Bioarchitecture Ctr,Higashi Ku, Fukuoka 8128581, Japan

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 129卷

关键词：

Xylose; Butanol fermentation; Continuous culture; Cell recycling; Clostridium saccharoperbutylacetonicum N1-4; CLOSTRIDIUM-BEIJERINCKII BA101; IMMOBILIZED CELLS; ETHANOL FERMENTATION; RENEWABLE BIOMASS; BUTYRIC-ACID; ACETONE; ACETOBUTYLICUM; CULTURE; SACCHAROPERBUTYLACETONICUM; ULTRAFILTRATION;

D O I：

10.1016/j.biortech.2012.11.066

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A continuous butanol production system with high-density Clostridium saccharoperbutylacetonicum N1-4 generated by cell recycling was established to examine the characteristics of butanol fermentation from xylose. In continuous culture without cell recycling, cell washout was avoided by maintaining pH > 5.6 at a dilution rate of 0.26 h(-1), indicating pH control was critical to this experiment. Subsequently, continuous culture with cell recycling increased cell concentration to 17.4 g L-1, which increased butanol productivity to 1.20 g L-1 h(-1) at a dilution rate of 0.26 h(-1) from 0.529 g L-1 h(-1) without cell recycling. The effect of dilution rates on butanol production was also investigated in continuous culture with cell recycling. Maximum butanol productivity (3.32 g L-1 h(-1)) was observed at a dilution rate of 0.78 h(-1), approximately 6-fold higher than observed in continuous culture without cell recycling (0.529 g L-1 h(-1)). (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：360 / 365

页数：6

共 28 条

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