The Effect of Nutrients on the Production of Anti-Complementary Polysaccharide by Flammulina velutipes

Flammulina velutipes 항보체 활성다당의 생산에 미치는 영양원의 효과

  • Lee, Hyun-Kyung ;
  • Shin, Kwang-Soon ;
  • Song, Chi-Hyeun ;
  • Sung, Ha-Chin ;
  • Yang, Han-Chul
  • 이현경 (고려대학교 식품공학과) ;
  • 신광순 (고려대학교 생물공학연구소) ;
  • 송치현 (대구대학교 생물공학과) ;
  • 성하진 (고려대학교 생물공학연구소) ;
  • 양한철 (고려대학교 식품공학과)
  • Published : 1994.08.01


The effect of various nutrients for the production of the anti-complementary polysaccha- ride by Flammulina velutipes, was examined and the partial purification of the polysaccharide was carried out. The culture conditions and medium compositions considerably influenced the anti-complementary activity of the polysaccharides. When a culture was carried out at 23$\circ$C and pH 5.5 for 6 days in the synthetic medium supplemented with galactose and NaNO$_{3}$, the production of the anti-complementary polysaccharide was maximized. The crude polysaccharide, FV-1 was isolated from the culture broth and partially purified into two fractions, FV-1-II and FV-1-III by gel filtration using Sephadex G-100. FV-1-II was mainly consisted of xylose, mannose, galactose and glucose, and rhamnose, mannose and galactose, for FV-1-III. Also, the anti-complementary activity of FV-1-III was reduced partially in the absence of the Ca ion. When crossed immunoelect- rophoresis using anti-human C3 serum was carried out after incubation of normal human serum with the FV-1-III in the Ca ion free condition, a cleavage of C3 precipitin line was observed. These results indicate that the mode of complement activation by polysaccharide from Flammulina velutipes is via not only the classical pathway but also the alternative pathway.


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