几种降解玉米中黄曲霉毒素方法的比较  

Comparision of several treatments on degrading aflatoxins in corn

作　　者：岳清华[1] 赵仁勇[1] 侯赛[1] 崔言开[1] 王耀鑫[1] 

机构地区：[1]河南工业大学粮油食品学院,河南郑州450001

出　　处：《粮食与饲料工业》2015年第6期15-19,共5页Cereal & Feed Industry

基　　金：河南省现代农业玉米产业技术体系资助项目(S2010-02-G06)

摘　　要：黄曲霉毒素主要是由真菌寄生曲霉和黄曲霉产生的次生代谢产物,具有极强的毒性、致癌性,被认为是饲料和食品不可避免的污染物。对黄曲霉毒素污染的控制急需一种安全、高效、环保的脱毒方法。对比研究了柠檬酸、二氧化氯、霉立解以及饲用黄曲霉毒素B1分解酶对玉米样品中黄曲霉毒素降解脱毒效果的影响,结果表明,4种不同处理方法均对黄曲霉毒素具有降解效果,其中霉立解的效果最好。霉立解是枯草芽孢杆菌ANSB060的发酵液干燥后制成的黄曲霉毒素生物降解剂,具有较强的分解黄曲霉毒素B1的能力,可使玉米粉样品中的黄曲霉毒素B1的初始浓度为从356.66μg/kg降至16.83μg/kg,降解率高达95.3%。Aflatoxins are the secondary metabolites mainly produced by Aspergillus f lavus and Aspergillus parasiticus with strong toxicity and carcinogenicity ,as unavoidable contaminants in feed and foods ,so an effective ,safe and environmentally method is urgently required for degrading aflatoxin .The degrading effects of four treatments including citric acid ,chlorine diox-ide ,MLJ ,and a feed additive （aflatoxin B1-detoxifizyme） on aflatoxins in corn were investigated .The results showed that ：afla-toxins were effectively degraded by the above four treatments ,in which the effect of MLJ was the best .MLJ was a aflatoxin bio-degradation agent fermented by Bacillus subtilisANSB060 after drying ,and had the most effective degrading effect on aflatoxin B1 in corn ,with the content of aflatoxin B1 reduced from 356 .66 μg/kg to 16 .83 μg/kg ,and the degradation rate was 95 .3% .

关 键 词：玉米 柠檬酸 二氧化氯 霉立解 黄曲霉毒素B1分解酶 黄曲霉毒素 降解率 

分 类 号：TS210.4[轻工技术与工程—粮食、油脂及植物蛋白工程]