Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Growth and Production of Endotoxin of Bacillus thuringiensis Isolates

Bacillus thuringiensis 분리균의 증식과 내독소 생산

  • 이주연 (건국대학교 이과대학 생물학과) ;
  • 박갑주 (건국대학교 이과대학 생물학과) ;
  • 이형환 (건국대학교 이과대학 생물학과)
  • Published : 1993.06.01
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Abstract

Effects of the five fermenation media on the growth and the production of endotoxin of twenty-five Bacillus thuringiensis isolates were investigated. Among the five different media, the growth and the production of endotoxin of B. thuringiensis were highest in the M4 and M5 media containing high amounts of nitrogen and carbohydrate. But the production of endotoxin was highest in the M1 and M3 media containing high amounts of nitrogen sources limiting carbohydrate. The average number of endotoxin and growth(O.D.) in the M1 and M3 medial were 4.4*107/ml and 2.42 in M1 medium and 1.3*107/ml and 1.46, respectively.

Keywords

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