| By analyzing the pollution status of aflatoxin B1 (AFB1)in edible vegetable oil in Nanning city, the health risk of AFB1to residents was assessed. According to the detection method of GB 5009.22—2016, the contents of AFB1 in 525 edible vegetable oils in Nanning from 2013 to 2019 were detected, and the health risk of AFB1 caused by edible vegetable oil intake was assessed by margin of exposure(MOE) approach. The results showed that the total detection rate of AFB1 in 525 edible vegetable oils was 750%, and the total exceeded rate was 26.9%. The average content（30.6 μg/kg）, detection rate （76.8%）and exceeded rate（28.1%） of AFB1 in peanut oil were higher than other edible vegetable oils. The highest and lowest exceeded rates were found in farmers markets （31.8%）and stores（8.4%）. The average content（34.2 μg/kg）, detection rate（81.6%） and exceeded rate（31.5%） of bulk peanut oil were higher than those in packaged peanut oil. The results of exposure risk assessment showed that the MOE value of AFB1 exposure to peanut oil was 1/49 of that of other vegetable oils,so the health risk of peanut oil was higher. The MOE value of edible vegetable oil collected from farmers market was the lowest, and that from stores was the highest; the MOE value of packaged peanut oil was 31 times as high as that of bulk peanut oil, and there was a low health risk. In conclusion, the detection rate of AFB1 in edible vegetable oil in Nanning city was higher, and there was higher health risk of bulk peanut oil. It was necessary to strengthen the supervision of edible vegetable oil sold in farmers markets and bulk peanut oil in Nanning city, and gave priority to risk management measures. |
