Ethanol production by repeated batch and continuous fermentations by Saccharomyces cerevisiae immobilized in a fibrous bed bioreactor

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메타 데이터

바이오화학분류

- 바이오플라스틱
  1. 고무
  2. 플라스틱
- 바이오정밀화학
  1. 용매
  2. 화학제품
  3. 연료
- 화장품용 기능성소재
  1. 기능성
  2. 계면활성제⁄증점제
- 의료용 화학소재
  1. 치료제
  2. 식품첨가제

논문

Ethanol production by repeated batch and continuous fermentations by Saccharomyces cerevisiae immobilized in a fibrous bed bioreactor

학술지

Journal of microbiology and biotechnology

저자명

Chen, Yong; Liu, Qingguo; Zhou, Tao; Li, Bingbing; Yao, Shiwei; Li, An; Wu, Jinglan; Ying, Hanjie

초록

In this work, a fibrous bed bioreactor with high specific surface area and good adsorption efficacy for S. cerevisiae cells was used as the immobilization matrix in the production of ethanol. In batch fermentation, an optimal ethanol concentration of 91.36 g/l and productivity of 4.57 g <TEX>$l^{-1}\;h^{-1}$</TEX> were obtained at an initial sugar concentration of 200 g/l. The ethanol productivity achieved by the immobilized cells was 41.93% higher than that obtained from free cells. Ethanol production in a 22-cycle repeated batch fermentation demonstrated the enhanced stability of the immobilized yeast cells. Under continuous fermentation in packed-bed reactors, a maximum ethanol concentration of 108.14 g/l and a productivity of 14.71 g <TEX>$l^{-1}\;h^{-1}$</TEX> were attained at <TEX>$35^{\circ}C$</TEX>, and a dilution rate of 0.136 <TEX>$h^{-1}$</TEX> with 250 g/l glucose.

발행연도

2013

발행기관

The Korean Society for Microbiology and Biotechnology

ISSN

1017-7825

ISSN

1738-8872

권

호

페이지

pp.511-517