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《Science and Technology of Food Industry》 2009-02
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Screening of Ge-enriched Cordyceps militaris strains by ion beam implantation

WANG Tao1,LI Wen1,CHEN Hong-wei1,YU Zeng-liang2(1.School of Food Engineering,Xuzhou Institute of Technology,Xuzhou 221008,China;2.Key Laboratory of Ion Beam Bio-engineering,Chinese Academy of Sciences,Hefei 230031,China)  
Cordyceps militaris has the effect of anti-aging,anti-cancer;organic germanium has the drug effect of anti-virus,anti-inflammation and anti-cancer.In order to increase the ability of accumulating Ge in Cordyceps militaris,Ge-enriched No.10 strain was screened by ion beam implatation,whose biomass was higher than the original one when adding different concentrations of GeO2 in culture medium,generally speaking,Ge in lower concentration could accelerate the growth of mycelia,while higher concentration inhibit.When the concentration of GeO2 was 200mg/L,the quantity of germanium was 1201.063μg/g in mycelia of No.10 strain,which was a 61.25% increase compared with the original strain,rate of Ge accumulation was 5.298%,which was 44.56% higher than that of the original one.The concentration of GeO2 adding into the medium was 200~300mg/L finally.
【Fund】: 国家自然科学基金(10375066);; 徐州工程学院校级重点课题(XKY2007103)
【CateGory Index】: S567.35
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