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目的了解2009—2013年广州市市售食品中黄曲霉毒素B1污染水平,为广州市开展居民膳食中黄曲霉毒素B1风险评估提供基础数据。方法在广州市10个区的农贸市场、超市、批发市场、餐饮单位、加工场以及零售店等随机采集米及米制品(大米及米粉)、面及面制品(小麦粉及面包)、植物油(花生油、玉米油)、花生(熟制及生花生)、玉米粉(渣、碎)、油炸食品以及大豆共7类食品,采用国家标准测定方法(ELISA)进行黄曲霉毒素B1的含量测定。结果 820份样品中共260份被检出黄曲霉毒素B1,检出率为31.71%,检出值范围为0.012~39.300μg/kg,均值为2.675μg/kg,中位数为2.5μg/kg,食品总体合格率为98.66%。结论广州市市售粮油食品黄曲霉毒素B1总体污染水平不高,但植物油(花生、玉米)检出率较高。
Objective To understand the level of aflatoxin B1 contamination in commercial foods in Guangzhou from 2009 to 2013 and provide basic data for risk assessment of aflatoxin B1 in residents’ diet in Guangzhou. Methods Rice and rice products (rice and rice noodles), flour and noodles (wheat flour and bread), vegetable oil (peanut oil, peanut oil and peanut oil) were collected randomly from farmers’ markets, supermarkets, wholesale markets, catering establishments, processing plants and retail stores in 10 districts of Guangzhou. , Corn oil), peanuts (cooked and raw peanuts), corn meal (residue, shredded), fried foods and soya beans. The content of aflatoxin B1 was determined by the national standard determination method (ELISA). Results A total of 260 samples of aflatoxin B1 were detected in 820 samples, with a detection rate of 31.71%. The detection range was 0.012-39.300 μg / kg with a mean of 2.675 μg / kg and a median of 2.5 μg / kg. The overall pass rate of food was 98.66%. Conclusion The overall level of aflatoxin B1 in Guangzhou is not high, but the detection rate of vegetable oil (peanut and corn) is higher.