Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Optimization of the Production of an Immunostimulant from a Marine Bacterium

해양미생물로부터 면역증강물질의 생산 최적화

  • Published : 2002.12.01
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Abstract

A halophilic bacterium for the production of the immunostimulant was isolated from domestic marine, it was identified as Burkholderia sp. IS-203. The optimal conditions for the production of the immunostimulant were 1 % dextrose and 1 % yeast extract in artificial sea water for carbon and nitrogen sources, respectively. The initial pH and growth temperature for the prodution were 8.0 and $30^{\circ}C$ under the presence of oxygen, respectively.

해수에서 분리한 Burkholderia sp. IS-203으로부터 면역 증강물질을 생산하기 위한 최적조건을 검토한 결과는 다음과 같다. 면역증강물질을 생산하는 최적 배양조건은 인공해수에 1% glucose와 1% yeast extract 였으며, 최적 NaCl 요구성은 3%로 전형적인 해양세균의 특징을 보여주는 것으로 생각되어진다. 그리고 최적 배양조건으로 최적 초기 pH는 8.0, 최적 온도는 $30^{\circ}C$였으며, 산소를 요구하는 호기성균이었다. 면역증강물질을 생산하기 위한 배양조건은$35^{\circ}C$, pH 6.0이었으며, 최적생육 배지는 1.5% soluble starch, 1% tryptone, 0.5% yeast extract로 조성하여 500 $m\ell$의 삼각플라스크에 $50m\ell$씩 분주하여 진탕배양하였다. 이와 같은 최적조건에서 항생물질은 정지기부터 생산되는 비증식연관형으로서 포자형성이후부터 생산되었다.

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