电子束辐照降解玉米中黄曲霉毒素B_1及对玉米品质的影响  

Effects of electron beam irradiation on the degradation of aflatoxins and the physicochemical properties of corn

作　　者：罗小虎[1,2,3] 齐丽君[1,2,3] 房文苗 潘丽红[1,2,3] 王韧[1,2,3] 王莉[1,2,3] 余晓斌[4] 陈正行[1,2,3] LUO Xiao-hu QI Li-jun FANG Wen-miao PAN Li-hong WANG Ren WANG Li YU Xiao-bin CHEN Zheng-xing(State Key Laboratory of Food Science and Technology, J iangnan University, Wuxi, J iangsu 214122, China National Engineering Laboratory for Cereal Fermentation Technology, Wuxi, Jiangsu 214122, China School of Food Science and Technology, J iangnan University, Wuxi , J iangsu 214122, China School of Biotechnology, J iangnan University, Wuxi , J iangsu 214122, China)

机构地区：[1]江南大学食品科学与技术国家重点实验室,江苏无锡214122 [2]粮食发酵工艺与技术国家工程实验室,江苏无锡214122 [3]江南大学食品学院,江苏无锡214122 [4]江南大学生物工程学院,江苏无锡214122

出　　处：《食品与机械》2016年第10期111-114,193,共5页Food and Machinery

基　　金：公益性行业(粮食)科研专项(编号:201313005;201513006);公益性行业(农业)科研专项(编号:201203037);国家自然科学基金(编号:31371874;31501579);国家国际科技合作专项(编号:2015DFA30540);江苏省博士后基金(编号:1501078B);中央高校基本科研业务费专项资金资助(编号:JUSRP11510)

摘　　要：为考察电子束辐照对玉米中黄曲霉毒素B1（aflatoxinB1，AFB1）的降解效果及对玉米品质的影响，试验选取AFB1污染的玉米为原料，研究0-50kGy剂量辐照下玉米中AFB1的降解效果，并考察电子束辐照对玉米理化性质，包括脂肪酸值、黏度值和色度的影响。结果表明，随着电子束辐照剂量的升高（5-50kGy），玉米中AFB1含量显著降低（P〈0．05）；当电子束辐照剂量大于15kGy时，玉米理化性质变化较明显，其中脂肪酸值显著升高（P〈0．05），黏度值显著下降（P〈0．05），L＊值无显著变化（P〉0．05），a＊，b＊值显著下降（P〈0．05）。To study the detoxification effect of electron beam irradiation on AFB1 in corn, the effect of electron beam irradiation on the AFBl-contaminated corn based on the doses of 0 - 50 kGy wasstudied. Physicochemical properties including fatty acid, color and viscosity of AFBl-Contaminted corn at different irradiated doses were also investigated. Results indicated that AFB1 in corn significantly decreased with the irradiation dose （ P〈 0.05）. Moreover, physico- chemical properties changed significantly when the irradiation dose was over 15 kGy, including the significant increase of fatty acid value （P〈0.05） and the decrease of the viscosities （P〈0.05）. It was found that the whiteness didn＇t change significantly （P〉0.05）, while the sig- nificantly decreased redness and yellowness （P〈0.05） were observed.

关 键 词：黄曲霉毒素B1 玉米 电子束辐照 降解 品质 

分 类 号：TS213.4[轻工技术与工程—粮食、油脂及植物蛋白工程]