백강잠(白彊蠶) 생산을 위한 Beauveria bassiana의 효율적인 접종법 및 백장잠의 간보호 활성 검정

Efficient Inoculation Method of Beauveria bassiana for Production of Bombycis corpus and Evaluation of Its Liver Protection Activity

  • 정이연 (농업과학기술원 농업생물부) ;
  • 홍인표 (농업과학기술원 농업생물부) ;
  • 강필돈 (농업과학기술원 농업생물부) ;
  • 남성희 (농업과학기술원 농업생물부) ;
  • 김미자 (농업과학기술원 농업생물부)
  • Jung, I-Yeon (Department of Agricultural Biology, The National Institute of Agricultural Science and Technology) ;
  • Hong, In-Pyo (Department of Agricultural Biology, The National Institute of Agricultural Science and Technology) ;
  • Kang, Pil-Don (Department of Agricultural Biology, The National Institute of Agricultural Science and Technology) ;
  • Nam, Sung-Hee (Department of Agricultural Biology, The National Institute of Agricultural Science and Technology) ;
  • Kim, Mi-Ja (Department of Agricultural Biology, The National Institute of Agricultural Science and Technology)
  • 발행 : 2005.06.01

초록

이 연구는 백강잠(B. corus)의 대량생산을 위한 B. bassiana의 효과적인 접종법을 구명하고 백강잠의 간보호 활성을 조사하기 위하여 실시하였던 바 다음과 같은 결과를 얻었다. 1. 백강잠 대량생산을 위한 B. bassiana의 접종시험에서 포자농도를 1.0${\times}$$10^8$ spores/m/로 할 경우 접종후 고습도 처리시간에 관계없이 높은 감염율을 나타내었으나, 1.0${\times}10^7$ spores/m/의 농도에서는 감염율이 낮았다. 2. B. bassiana 종균의 보관온도 및 보관일수별 활력 검정에서 $4^{\circ}C$에서는 12일까지 보관시 감염률 90% 이상 유지하였으나, 상온($25^{\circ}C$ 내외) 보관시에는 48시간이 지나면 감염율이 급격히 저하(5% 이하)하였다. 또한 모균주 보존기간별 감염율은 $4^{\circ}C$에 12개월 보존시에도 초기값과 활력에 차이가 없었으며 감염율 역시 90% 이상으로 균보관은 $4^{\circ}C$에서 12개월까지 보관하여도 활력에는 별 차이가 없었다. 3. B. bassiana 101A의 간기능 보호활성도 측정에서 galactosamine으로 독성을 유발한 처리구에서는 물분획층에서 대조물질 silymarin과 DDB 대비 각각 43.5%, 65.7%의 간보호 회복 효과를 나타내었으며 사염화탄소($CCl_4$)로 독성을 유발한 처리구에서는 에틸아세테이트 분획층에서 대조 물질대비 각각 100%, 69.3%의 간보호 회복 효과가 있었다.

When inoculating with B. bassiana 101A for the mass production of B. corpus, the infection ratio was high with regardless of the treating time with highly-humidity if the concentration of spore was 1.0${\times}$$10^8$ spores/m/, but that was low if the concentration was 1.0${\times}$$10^7$ spores/m/. In the study of the activities according to the coserving temperature or days of the B. bassiana spawn, the infection ratio of 90% was maintained for 12 days in the temperature of $4^{\circ}C$. However, the infection ratio was rapidly dropped to the below of 5% after conserved for 48 hours in the temperature of $25^{\circ}C$. Besides, the activities of the original isolate had no difference after conserved for 12 months in the temperature of $4^{\circ}C$, so that the infection ratio 90% could be mintatined. In the measure of liver-protecting activities of B. bassiana 101A, the recovering effect was 43.5% and 65.7% respectively in the poisonous treatment induced with galactosamine, compared with liver-protecting activities of Silymarin and DDB in the $H_2O$ fraction. In the poisonous treatment induced with $CCl_4$ the recovering effect was 100% and 69.3% respectively, compared with liver-protecting activities of Silymarin and DDB in the EtOAc fraction.

키워드

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