Acetobacter xylinum BRC5에 의한 미생물 셀룰로오스의 발효 특성

  • Park, Sang Hoon (Department of Biotechnology, Bioproducts Research Center, Yonsei University) ;
  • Yang, Young Kook (Department of Biotechnology, Bioproducts Research Center, Yonsei University) ;
  • Hwang, Jung Wook (Department of Biotechnology, Bioproducts Research Center, Yonsei University) ;
  • Lee, Chang Seung (Department of Biotechnology, Bioproducts Research Center, Yonsei University) ;
  • Pyun, Yu Ryang (Department of Biotechnology, Bioproducts Research Center, Yonsei University)
  • 박상훈 (연세대학교 생명과학과.생물산업소재연구센터) ;
  • 양영국 (연세대학교 생명과학과.생물산업소재연구센터) ;
  • 황정욱 (연세대학교 생명과학과.생물산업소재연구센터) ;
  • 이창승 (연세대학교 생명과학과.생물산업소재연구센터) ;
  • 변유량 (연세대학교 생명과학과.생물산업소재연구센터)
  • Published : 1997.12.01

Abstract

The characteristics of cell growth and cellulose production by Acetobcter xylinum BRC5 were studied in shaking flasks and jar fermentors. Of the substrates tested, the highest cellulose yield was obtained from the fructose medium. Some inductive cultivation was observed and then cellulose was produced with cell growth. When glucose alone or mixture of glucose and fructose was used as the carbon source, cellulose could be biosynthesized under the glucose limitation. Corn steep liquor (CSL), as a low-cost nitrogen source, was a good substitute for yeast extract. In a jar fermentor experiment, 4.14 g/l of disintegrated cellulose was obtained from 8% CSL- medium containing 0.5% glucose and 1.5% fructose.

Keywords

Acetobacter xylinum;Microbial cellulose;Fermentation

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