Immune-Enhancing Effects of Polysaccharides Isolated from Phellinus linteus Mycelium on Mori ramulus

상지에 배양한 상황버섯 균사체로부터 분리된 다당류의 면역증강 효과

  • Park, Hye-Mi (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Hong, Joo-Heon (Department of Food Science and Technology, Catholic University of Daegu)
  • 박혜미 (대구가톨릭대학교 식품공학전공) ;
  • 홍주헌 (대구가톨릭대학교 식품공학전공)
  • Received : 2016.09.27
  • Accepted : 2016.11.11
  • Published : 2017.01.31


The objective of this study was to examine the immune-enhancing effects of polysaccharides isolated from Phellinus linteus mycelium on Mori ramulus. Crude polysaccharides were isolated by pressurized extraction ($121^{\circ}C$, $1.2kgf/cm^2$, 3 h), ethanol precipitation, and lyophilization. In addition, crude polysaccharides were further fractionated into unabsorbed fractions (PF-1, fraction No. 3~15) and absorbed fractions (PF-2, fraction No. 24~33) by DEAE-sepharose CL-6B column chromatography in order to isolate immune-regulating polysaccharides. The major constituents in PF-1 and PF-2 were total sugar (75.51% and 52.38%), total protein (1.63% and 8.41%), uronic acid (17.53% and 15.04%), and ${\beta}-glucan$ (28.33% and 25.04%), respectively. PF-1 increased production of nitric oxide (NO) and cytokines, such as tumor necrosis factor-alpha ($TNF-{\alpha}$) and interleukin-6 (IL-6) in a dose-dependent manner. The mRNA expression levels of inducible NO synthetase, cyclooxygenase-2, $TNF-{\alpha}$, and IL-6 markedly increased as determined by polymerase chain reaction analysis. The above data led us to conclude that macrophage activation of purified polysaccharides was higher than that of crude polysaccharides. The polysaccharides isolated from P. linteus mycelium on M. ramulus investigated herein are useful as natural immune-enhancing agents.


Supported by : 중소기업청


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