Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Characterization of Bacterial Cellulose Production by Gluconacetobacter sp. JH232.

Gluconacetobacter sp. JH232의 Bacterial Cellulose 생성 특성연구

  • Ahn, Yeong-Hee (Department of Environment Engineering, Dong-A University) ;
  • Park, Jai-Hyo (Microbiotech Co.,Ltd.) ;
  • Go, Sang-Hee (Division of Biological Sciences, Pusan National University) ;
  • Jun, Hong-Ki (Division of Biological Sciences, Pusan National University)
  • Published : 2007.11.30
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Abstract

Previous study (J. of Chem. Technol. Biotechnol. 2004, 79, 79-84) showed that bacterial cellulose (BC) produced by a bacterial strain JH232 has potential as a source for environmentally friendly ion exchange membranes. In this study, strain JH232 was investigated for phylogenetic classified and characterized for BC production. Comparative analysis of 16S rRNA gene revealed that the strain belongs to the genus Gluconacetobacter. Maximum production of BC was observed when JH232 was cultured in CSL medium (pH 5.5) at $30^{\circ}C$ as determined by flask experiment. When batch and fed-batch cultures of JH232 were performed in the fermenter experiment to compare BC productivity of the strain, BC productivity of fed-batch culture was 1.56 times higher than that of batch culture.

균주 JH232가 생성한 bacterial cellulose (BC)는 이온교환 막 생산을 위한 환경친화적 재료로서 잠재능이 있다는 것이 전 연구(J. of Chem. Technol. Biotechnol. 2004, 79, 79-84)를 통해 보고되었다. 본 연구를 통해 JH232를 동정하였으며 BC 생성 특성을 조사하였다. 16S rRNA 유전자의 비교분석을 통해 JH232는 Gluconacetobacter sp.인 것을 밝혀냈다. 플라스크실험 결과 이 균주는 초기 pH 5.5로 조절된 CSL 배지에서 온도가 $30^{\circ}C$인 조건하에 배양하였을 때 BC 생성량이 최대를 나타내었다. 발효조 실험을 통해서 회분식 배양보다 유가배양에 의해 JH232의 BC 생성량이 1.56배 더 높게 나타났다.

Keywords

References

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