FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (1): 177-180.doi: 10.7506/spkx1002-6630-200901042

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Effects of Cordyceps militaris Polysaccharides on Ultraviolet-induced Micronucleus Rate of Vicia faba Root-tip Cells

ZHU Yun-lan1，SHAO Ying2，CHEN An-hui2，CHEN Hong-wei2,*   

  1. (1.College of Environmental Engineering, Xuzhou Institute of Technology, Xuzhou 221008, China；
    2.College of Food Engineering, Xuzhou Institute of Technology, Xuzhou 221008, China)
  • Received:2007-12-10 Revised:2008-05-20 Online:2009-01-01 Published:2010-12-29
  • Contact: CHEN Hong-wei2 E-mail:chenhw@xzit.edu.cn

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Abstract:

Micronucleus test was designed to study effects of Cordyceps militaris polysaccharides on micronucleus rate of Vicia faba root-tip cells induced by ultraviolet (UV). The results showed that the inhibition rates of Cordyceps militaris endopolysaccharides and exopolysaccharides at the concentrations of 30 , 50 , 80, and 100 μg/ml respectively on micronucleus of Vicia faba root-tip cells induced by UV are lower obviously than the positive control group. When the concentration of both endopolysaccharides and exopolysaccharides is 100 μg/ml, their inhibition rates against micronucleus reach 47.68 % and 43.04 % respectively. There are significant differences among the effects of four concentrations of Cordyceps militaris polysaccharides on micronucleus (p ＜ 0.01). In addition, with the increase of the concentration of polysaccharides, the micronucleus rate of Vicia faba root-tip cells decreases. In conclusion, endopolysaccharides and exopolysaccharides from Cordyceps militaris could inhibit the yield of micronucleus of Vicia faba root-tip cells induced by UV.

Key words: Cordyceps militaris, polysaccharides, micronucleus, ultraviolet (UV)

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