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目的评估广西食用植物油中黄曲霉毒素B_1的暴露风险。方法结合广西植物油中黄曲霉毒素B_1污染状况和人群消费量的调查结果,应用暴露限值(margin of exposure,MOE)法对植物油中黄曲霉毒素B_1膳食暴露情况进行分析。结果此次调查中植物油样品黄曲霉毒素B_1含量范围为0.50~320.00μg/kg。其中,花生油的检出率为78.08%(114/146),远高于其他植物油,超标率为31.51%(46/146),平均含量为30.80μg/kg,人群日膳食暴露量为17.30 ng/kg BW,MOE值为18。定型包装花生油中黄曲霉毒素B_1平均含量为6.33μg/kg,低于国家安全标准,处于安全范围;而散装花生油黄曲霉毒素B_1平均为41.50μg/kg,含量高出国家标准1.08倍,人群日膳食暴露量25.59 ng/kg BW,MOE值为12,是定型包装的MOE值的1/8。结论对于散装花生油应优先采取风险管理措施,加大监管力度,并做好人群健康饮食习惯指导。
Objective To assess the exposure risk of aflatoxin B1 in edible vegetable oil in Guangxi. Methods According to the survey results of aflatoxin B1 contamination in Guangxi vegetable oil and population consumption, the exposure of aflatoxin B 1 in vegetable oil was analyzed by the margin of exposure (MOE) method. Results In this survey, the content of aflatoxin B1 in vegetable oil samples ranged from 0.50 to 320.00 μg / kg. Among them, the detection rate of peanut oil was 78.08% (114/146), which was much higher than that of other vegetable oils. The exceeding standard rate was 31.51% (46/146), the average content was 30.80μg / kg, and the daily dietary exposure was 17.30ng / kg BW, MOE value of 18. The average content of aflatoxin B_1 in the peanut oil was 6.33μg / kg, which was lower than the national safety standard and was in safe range. The average aflatoxin B_1 in bulk peanut oil was 41.50μg / kg, which was 1.08 times higher than the national standard. Dietetic exposure was 25.59 ng / kg BW with a MOE of 12 and was 1/8 of the MOE value for styling packs. Conclusion For peanut oil in bulk, risk management measures should be prioritized, supervision should be strengthened, and people should be guided in their healthy eating habits.