Effect of Cultural Conditions on Polysaccharide Production and its Monosaccharide Composition in Phellinus linteus L13202

배양 조건에 따른 상황 버섯의 다당류 생산 및 단당류 구성 변화

  • Lee, Jae-Hoon (Microbial Chemistry Research Group, Korea Research Institute of Bioscience and Biotechnology, KIST) ;
  • Cho, Soo-Muk (Microbial Chemistry Research Group, Korea Research Institute of Bioscience and Biotechnology, KIST) ;
  • Ko, Kyung-Soo (Bangchon Natural Products Research Institute, HanKook SinYak Pharm, Co. Ltd.) ;
  • Yoo, Ick-Dong (Microbial Chemistry Research Group, Korea Research Institute of Bioscience and Biotechnology, KIST)
  • 이재훈 (한국과학기술연구원 생명공학연구소 미생물화학연구그룹) ;
  • 조수묵 (한국과학기술연구원 생명공학연구소 미생물화학연구그룹) ;
  • 고경수 ((주)한국신약 방촌천연물 연구소) ;
  • 유익동 (한국과학기술연구원 생명공학연구소 미생물화학연구그룹)
  • Published : 1995.12.30

Abstract

The effect of cultural conditions on mycelial growth, polysaccharide production in Phellinus linteus and its monosaccharide composition was studied. P. linteus showed the highest growth (0.9 g/100 ml) on glucose but the polysaccharide production was the highest (13.7%) on mannose. The fungus grew very well at neutral pH (0.9 g/100 ml) but the growth was reduced to 0.47 g per 100 ml at alkaline pH. For the different pH, the yield of polysaccharide was in the range of $5{\sim}8%$. The highest yield of 7.94% was obtained at pH 5. Also a variation in monosaccharide composition was observed for different carbon sources and pH. The composition ranges of glucose, mannose, and galactose of polysaccharide were $80{\sim}95%,\;3{\sim}12%,\;and\;2{\sim}10%$ depending on carbon sources, respectively. In contrast, the variation of composition range of three monosaccharides was narrower for different pH than that for carbon sources. These results suggested the possibility of the improvement of production and the physiological modification of the polysaccharide.

상황 (Phellinus linteus) 의 균사체 생장과 다당류 생산 및 다당류에서의 단당류 구성비에 대한 배양 조건의 영향을 조사하였다. 여러 가지 배지를 사용하여 실험한 결과 GP(glucose-peptone)배지에서 균사 생장이 가장 양호하여, 이 배지를 사용하여 탄소원 및 pH 영향을 조사하였다. 탄소원중 glucose에서 최대 균사체 생장 (0.9 g/100 ml)을 보였고, 다당류의 수율은 $5{\sim}14%$ 로서 mannose에서 최대이었다. 최적 pH는 7 이였으며, 산성 pH에서는 비교적 좋은 생장을 보였으나, 알칼리 pH에서는 생장이 급격히 감소하였다. 한편 pH에 따른 다당류 수율은 $5{\sim}8%$로 큰 변화를 보이지 않았다. 또한 탄소원 및 pH에 따른 단당류 구성비의 변화가 관찰되었다. 즉 탄소원에 따라서 다당류에서 glucose, mannose, 및 galactose 함량은 각각 $80{\sim}95%,\;3{\sim}12%$, 그리고 $2{\sim}10%$이었다. 한편 pH 변화에 따라서, glucose는 $83{\sim}92%$, mannose 는 $4{\sim}8%$, 그리고 galactose는$5{\sim}8%$의 구성비를 보였다. 이 결과는 배양 조건에 의한 항암면역활성 다당류의 구조의 변환 및 생산 증강이 가능함을 시사한다.

Keywords

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