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Enhanced Cutinase Production of Thermobifida Jusca by a Two-stage Batch and Fed-batch Cultivation Strategy
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  • Enhanced Cutinase Production of Thermobifida Jusca by a Two-stage Batch and Fed-batch Cultivation Strategy
  • Enhanced Cutinase Production of Thermobifida Jusca by a Two-stage Batch and Fed-batch Cultivation Strategy
저자명
He. Gangqiang,Huo. Guanghua,Liu. Liming,Zhu. Yang,Du. Guocheng,Chen. Jian
간행물명
Biotechnology and bioprocess engineering
권/호정보
2009년|14권 1호|pp.46-51 (6 pages)
발행정보
한국생물공학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

In this study, cutinase production by Thermobifida fusca WSH03-11 was investigated with mixed short-chain organic acids as co-carbon sources to demonstrate the possibility of producing high value-added products from organic wastes. T. fusca WSH03-11 was cultured with different combinations of butyrate, acetate, and lactate with a purpose of increasing cutinase activity. The optimum proportion of butyrate, acetate, and lactate was 4:1:3. In batch cultivation, acetate and lactate were consumed quickly, while the consumption of butyrate was depressed in the presence of acetate with a concentration higher than 0.5 g/L. Based on these results, a two-stage batch and fed-batch cultivation strategy was proposed: a batch culture with acetate and lactate as the co-carbon sources in the first 10 h, and then a fed-batch culture with a constant butyrate feeding rate of 12 mL/h during $11{sim}20;h$. By this two-stage cultivation strategy, cutinase activity, dry cell weight, and consumption rate of butyrate were increased by 70%, 103.4%, and 4.3-fold, respectively, compared to those of the batch cultivation. These results provided a novel and efficient way to produce high value-added products from organic wastes.