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《Science of Sericulture》 2008-02
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Effects of ~(60)Co γ Radiation Sterilization on the Silkworm Powder Compound

SUN Bo1,2 SHI Xin-Qin3 ZHANG Gui-Zheng1 DUAN Zu-An1 YIN Hao1 CUI Wei-Zheng1(1College of Forestry, Shandong Agricultural University, Taian Shandong 271018, China; 2Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China;3Sericultural Research Institute of Shandong Province, Yantai Shandong 264002, China)  
After the whole silkworm powder (SP) and its compound (SPC) were treated with radiation of 7kGy 60Co γ radial, the total number of aerobic bacteria colony (TNABC) in SP and SPC was tested according to the national standard GB/T 4789.2-2003. Results showed that TNABC in the group treated with radiation was much less than that in the control group, which met the needs for hygiene in food and Chinese traditional medicine. Moreover, the radiation treatment had no obvious effect on the 1-deoxynojirimycin (DNJ) content in samples and the function of samples on lowering blood-glucose. When SP and SPC were preserved in the condition of normal temperature and cold storage for 6 months, TNABC increased evidently in the control sample, while it was no obvious increment in the samples treated with radiation. There were no remarkable differences for the DNJ content as well as its effects on lowering blood-glucose between the treated samples of pre-conservation and post-conservation, while the value of postprandial blood glucose in the test mice fed with SP after the treatment of radiation was lower than that in other treatments. All these results revealed that the treatment of radiation with 7 kGy 60Co γ radial could kill the microorganisms effectively in SP and SPC, and had no influence on the active ingredient 1-DNJ and its effect on lowering blood-glucose.
【CateGory Index】: R285
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