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二甲基二碳酸盐用于鲜切胡萝卜杀菌的条件优化研究

作  者:
王成;刘忠义;徐玉娟;吴继军;姚锡镇;张雁;陈于陇
单  位:
广东省农业科学研究院蚕业与农产品加工研究所;相潭大学化工学院
关键词:
二甲基二碳酸盐;响应面;鲜切;胡萝卜
摘  要:
应用响应面法优化了二甲基二碳酸盐(DMDC)用于鲜切胡萝卜杀菌的条件。运用统计软件Design-Expert8.0.5b中的Box-Behnken响应面设计,以DMDC浓度、料液比、杀菌时间为自变量,以杀灭的细菌总数的死亡数量级(Y1)和杀灭的霉菌和酵母菌总数的死亡数量级(Y2)为响应值,建立了DMDC杀菌的回归模型,并对其进行了实验验证;同时,利用模型的响应面对影响DMDC杀菌的关键环节及其相互作用进行了深入的探讨。实验得到优化后的杀菌条件参数为:DMDC浓度200mg/L、料液比1:3、杀菌时间2min,得到杀灭细菌和杀灭霉菌和酵母的优化实验结果为:Y1=3.515,Y2=2.632。
译  名:
Optimization of fresh-cut carrots sterilization conditions with dimethyl dicarbonate
作  者:
WANG Cheng1,2,LIU Zhong-yi1,XU Yu-juan2,WU Ji-jun2,YAO Xi-zhen2,ZHANG Yan2,CHEN Yu-long2,(1.College of Chemical Engineering,Xiangtan University,Xiangtan 411105,China;2.Guangdong Open Access Laboratory of Agricultural Product Processing,Sericulture & Agro-food Product Processing Research Institute,Guangdong Academy of Agricultural Science,Guangzhou 510610,China)
关键词:
dimethyl dicarbonate(DMDC);response surface methodology(RSM);fresh-cut;carrot
摘  要:
The optimal condition of dimethyl dicarbonate(DMDC) sterilization on fresh-cut carrots was investigated using Box-Behnken model of response surface methodology(RSM)(version 8.0.5b).The optimum processing parameters of DMDC sterilization were as following:sterilizing concentration 200mg/L,ratio of material to sterilizing solution 1:5,sterilizing time 2min.The optimum reductions(lg) of bacteria and mould of fresh-cut carrot treated by DMDC were 3.515 and 2.632 respectively.

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