基于熵权法-AHP法的高能电子束辐照对生附片品质影响分析OA北大核心CSTPCD

To explore effects of high-energy electron beam irradiation on the sterilization effect and quality of shengfupian,high-energy electron beams with doses of 0,1,3,5,10,13,15 and 25 kGy were used to treat shengfupian.Thus,the number of microorganisms,physical and chemical components,active components and fingerprints during storage were determined and analyzed.Results showed that the total number of aerobic bacteria,molds and yeasts in the samples with excessive microbial load reduced to below the standard when the absorbed dose was 1 kGy.There was no significant change in moisture,total ash and extract content compared with the non-irradiated group(P>0.05).The total color difference ΔE value increased significantly with the increased of irradiation dose.After 7,10 and 13 kGy high-energy electron beam irradiation,the total alkaloids and monoester alkaloids were lower than these of the non-irradiated group.The scavenging rate of 1,1-diphenyl-2-trinitrophenylhydrazine(DPPH)decreased significantly with the increase of absorbed dose(P<0.05).The results of high-performance liquid chromatography(HPLC)fingerprint showed that the similarity of samples treated with different irradiation doses of high-energy electron beam was greater than 0.97,and the quality was stable.According to the comprehensive evaluation of entropy weight method combined with analytic hierarchy process(AHP)showed that the highest score of quality comparison of shengfupian was 5 kGy,and the lowest score was 1 kGy.The results of this study can provide theoretical reference for the application of high-energy electron beam irradiation technology in the storage of raw materials and processed products.