Fisheries and Aquatic Sciences

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Isolation and Characterization of a Chitinolytic Enzyme Producing Marine Bacterium, Aeromonas sp. J-5003

  • Choi Yong Un (Department of Microbiology, Pukyong National University) ;
  • Kang Ji Hee (Department of Microbiology, Pukyong National University) ;
  • Lee Myung Suk (Department of Microbiology, Pukyong National University) ;
  • Lee Won Jae (Department of Microbiology, Pukyong National University)
  • Published : 2003.03.01
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Abstract

A chitinolytic enzyme-producing bacterium was isolated from sea water on the coast of Busan. The bacterium was identified as Aeromonas sp. based on its morphological, cultural and biochemical characteristics and designated Aeromonas sp. J-5003. The strain produced two chitinoloytic enzymes: chitinase and chitobiase. The optimum culture conditions of the strain for production of chitinoloytic enzymes were investigated. For the production of chitinase, the major components of medium were colloidal chitin $0.5\%$, glucose $0.2\%$, yeast extract $0.25\%$ and peptone $0.25\%$ while for the production of chitobiase, they were colloidal chitin $0.5\%$, galactose and tryptone $0.2\%$. The optimum cultural temperature and initial pH for the production of chitinase and chitobiase were $30^{\circ}C$ and pH 7.0, respectively.

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References

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