Negative Effects of Water Extracts from Pinus densiflora Sawdust on Mycelium Growth of the Shiitake Mushroom Lentinula edodes

  • Choi, Myung-Suk (Environmental Biotechnology National Core Research Center, Gyeongsang Natl. Univ.) ;
  • Yang, Jae-Kyung (Faculty of Forest Sci. & Institute of Agriculture & Life Sci., Gyeongsang Natl. Univ.)
  • Published : 2005.04.30

Abstract

Extracts from sawdust of Pinus densiflora were showed antifungal activity against Lentinula edodes. It was extracted by hot water and then successively extracted by n-hexane, ethyl acetate, and methanol. The yields of the n-hexane-soluble, ethyl acetatesoluble, methanol-soluble and methanol-insoluble fractions of water extracts were 8.2%, 10.6%, 32.0%, and 49.2%, respectively. The ethyl acetate-soluble fraction showed the greatest antifungal activity against L. edodes: 41.5% inhibition at 1,000 ppm. However, there were not significant differences of antifungal activities between n-hexane-soluble fraction and methanol-soluble fraction at a concentration of 1,000 ppm. The hot water extracts showed 23.5% of antifungal activity against L. edodes at a concentration of 1000 ppm. The four antifungal compounds were separated from ethyl acetate fraction by thin layer chromatography.

Keywords

References

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