Result analysis of partial mycotoxins in commercial edible vegetable oils between 2013 and 2018

ObjectiveInvestigating the contents of aflatoxins （AFs）， zearalenone （ZEN） and fumonisins （FBs） in edible vegetable oils to find out the pollution status of typical mycotoxins and provide bases for evaluating the safety status of edible vegetable oils sold in China.MethodsA total of 5 968 edible vegetable oils were collected from 28 provinces （autonomous regions， municipalities） in China， which would be then detected to determine the content of AFs， ZEN， FBs by national manual on risk monitoring of food pollution and harmful factors. The data obtained had been dealt using descriptive statistical analysis， while χ2 square test was used to compare the data between groups.ResultsThe total detection rate of mycotoxins in 5 968 edible vegetable oils was 25.75%. The detection rate of AFs in 4 933 commercial edible vegetable oils is 13.42% with the highest content of AFs 1 043.05 μg/kg， while the exceeding standard rate is 1.62% and all the exceeding standard samples are peanut oils， especially the bulk peanut oil samples. The detection rate of ZEN in 1 190 edible corn oils is 72.35% with the highest content 2 326.00 μg/kg， while the exceeding standard rate is 11.76%. The detection rate of FBs in 667 edible corn oils was 2.85%， while both the total detection rate and most of the detection values are low.ConclusionIt is considered that mycotoxins pollution in edible vegetable oils in China could not be ignored， especially AFs pollution in peanut oils and ZEN pollution in corn oils. It is necessary to focus on tracking and monitoring and take targeted measures to strengthen supervision.