摘要
以玉米和赭曲霉毒素A纯品为研究对象,研究了电子束辐照对玉米品质的影响,探讨了辐照对赭曲霉毒素A的降解效果。结果表明,电子束辐照对玉米的常规营养成分、氨基酸含量及其组成几乎没有影响,但5kGy剂量的电子束辐照对玉米脂肪酸组成及脂肪酸值有显著影响。赭曲霉毒素A的降解率随着辐照剂量的增加而提高,在3kGy的辐照剂量下,初始质量浓度为310.0μg/L的赭曲霉毒素A降解率为49.55%,当辐照剂量增大到5 k Gy时,降解率达到93.19%,此后降解率随辐照剂量增加的趋势变缓。因此,3~5 k Gy剂量的电子束辐照不会降低玉米品质,并能够降解赭曲霉毒素A。
Corn and ohratoxin A were irradiated by electron beam to study the effects on com quality and degradation, respectively. The results showed that the routine nutritional ingredient and amino acid content and its composition of corn were not affected by electron beam irradiation, but the fatty acid value and composition in the corn were significantly changed by the electron beam irradiation dose of 5 kGy. The degradation rate of ohratoxin A went up with the increase of irradiation dose. The degradation rate of ohratoxin A with the initial concentration of 310.0 μg/L was 49.55% when the irradiation dose was 3 kGy, and such rate was 93.19% when the dose increased to 5 kGy, and then changed slowly. Thus, the electron beam irradiation dose of 3 -5 kGy did not decrease the corn quality, and it could degrade oehratoxin A.
作者
郭东权
王娴
董威杰
崔龙
范家霖
李庆鹏
吕晓华
陈海军
陈云堂
Guo Dongquan;Wang Xian;Dong Weijie;Cui Long;Fan Jialin;Li Qingpeng;Lu Xiaohua;Chen Haijun;Chen Yuntang(Isotope Institute Co. , Ltd. , Henan Academy of Sciences, Key Laboratory of Nuclear Agriculture, Henan Academy of Sciences, Research Center of Irradiation Processing and Engineering of Henan , Zhengzhou 450015;School of Soil and Water Conservation, Beijing Forestry University, Beijing 100083;Institute of Food Science and Technology CAAS, Beijing 100193)
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2018年第5期76-81,共6页
Journal of the Chinese Cereals and Oils Association
基金
河南省科技合作开放项目(162106000010)
河南省食品辐照保鲜与加工创新型科技团队(豫科人事(2009)2号)
河南省重点科技攻关计划项目(162102110057)
关键词
电子束
辐照玉米品质
赭曲霉毒素A
降解
electron beam irradiation
corn quality
oehratoxin A
degradation
