Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (36): 84-92.doi: 10.11924/j.issn.1000-6850.casb20200100045

Special Issue: 生物技术

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Response Surface Methodology Applied to Spores Production by Solid-state Fermentation of Trichoderma Viride

Yang Dandan1(), Yang Chuanlun1, Zhang Xinqing1, Pan Dongmei1, Li Jiaming2, Chen Zhenfa1   

  1. 1Chambroad Chemical Industry Research Institute Co., Ltd., Binzhou Shandong 256500
    2Shandong Chambroad Environmental Protection Material Co., Ltd., Binzhou Shandong 256500
  • Received:2020-01-14 Revised:2020-02-23 Online:2020-12-25 Published:2020-12-23

Abstract:

To explore the optimum formula of solid fermentation of Trichoderma viride, the response surface method was used and the main influencing factors calcium carbonate, ammonium sulfate and manganese chloride were screened out to establish a quadratic regression equation with spore amount as response value. The data were analyzed by using the Design Expert 8.0.6 software and the optimization condition was determined. The results showed that under the inoculation amount of 15%, fermentation temperature of 28℃, the ratio of material to water of 1:0.70, the fermentation time of 7 days, the spores production could reach 8.505×109 CFU/g, and the optimum medium formulation was: bran 50%, rice husk 30%, corn flour 20%, ammonium sulfate 1.08%, corn starch 2.00%, soybean cake 2.00%, calcium carbonate 0.55%, manganese chloride 0.37%, and pH 6.0~7.0. The raw materials in the formula are cheap and easy to obtain, and the fermentation level is high, which can be applied to large-scale industrial production.

Key words: spores, Trichoderma viride, response surface methodology, solid-state fermentation

CLC Number: