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目的了解罗湖区食用油黄曲霉毒素B1(AFB1)污染状况,掌握辖区居民食用油的AFB1暴露水平,评估食用油中AFB1污染导致人群出现健康危害的风险。方法以分层随机抽样方法采集食用油样品50份,用液质谱联用方法 (LC-MS/MS)检测其中的AFB1含量。结合2008年深圳市居民总膳食调查数据和食用油AFB1含量数据,估计罗湖区居民食用油中AFB1的暴露水平。应用AFB1致肝癌平均危害程度公式对食用油中AFB1对居民可能造成的健康危害进行风险评估。结果食用油中黄曲霉毒素含量平均值为0.79μg/kg,超标率为0.0%。不同场所的食用油中黄曲霉毒素检出率差异无统计学意义(χ2=1.746,P=0.094)。估计膳食暴露摄入量为0.0229μg/d,植物油对于肝癌发病率的贡献为1.489/107人。结论经风险分析发现植物油黄曲霉毒素B1风险较低,总体安全性较好,但是其中花生油黄曲霉毒素含量相对较高,今后应针对花生及其制品进行长期的监测。
Objective To understand the status of aflatoxin B1 (AFB1) in food oil in Luohu District, understand the level of AFB1 exposure of cooking oil in the area of jurisdiction, and assess the risk of health hazards in the population caused by AFB1 contamination in cooking oil. Methods 50 samples of edible oil samples were collected by stratified random sampling method, and the content of AFB1 was detected by liquid chromatography-mass spectrometry (LC-MS / MS). According to the total dietary survey data of Shenzhen residents in 2008 and AFB1 content of edible oil, the exposure level of AFB1 in edible oil of residents in Luohu District was estimated. Applying the formula of average degree of harm of liver cancer caused by AFB1, the risk assessment of the possible health hazard caused by AFB1 in the cooking oil to the residents is carried out. Results The average content of aflatoxin in edible oil was 0.79 μg / kg, and the exceeding standard rate was 0.0%. There was no significant difference in the detection rate of aflatoxins in the cooking oil in different places (χ2 = 1.746, P = 0.094). Estimated dietary exposure to 0.0229μg / d, the contribution of vegetable oil to the incidence of liver cancer was 1.489 / 107 people. Conclusion The risk analysis showed that aflatoxin B1 possessed a lower risk and overall safety. However, aflatoxin content in peanut oil was relatively high, and peanut and its products should be monitored for a long time in the future.