Full
Outline
To investigate the pollution situation of aflatoxin B1 in commercially available edible vegetable oils in a certain province in Northwest China and evaluate the dietary exposure risk for local residents.
A total of 233 commercially available edible vegetable oil samples were collected from the northwest province between 2023 and 2024. Aflatoxin B1 content was determined in accordance with GB 5009.22—2016 National food safety standard-Determination of aflatoxins B and G in foods. The aflatoxin B1 content in edible vegetable oils was analyzed, and the point assessment method was applied to assess the dietary exposure risk of aflatoxin B1 among the general population based on adult dietary consumption data.
Among the 233 batches of edible vegetable oil samples, the overall detection rate of aflatoxin B1 was 0.43%, with no samples exceeding the standard limit. The average aflatoxin B1 content was 0.017 μg/kg. The average dietary exposure and high exposure level (95th percentile, P95) of aflatoxin B1 from edible vegetable oils for adult residents in this province were 0.011 ng/(kg·BW·d) and 0.009 ng/(kg·BW·d), respectively. Both the mean and P95 values of the margin of exposure (MOE) were greater than 10000, suggesting that the liver cancer risk associated with aflatoxin B1 exposure was within the acceptable range for adult residents.
The pollution situation of aflatoxin B1 in various commercially available edible vegetable oils in a certain province in Northwest China during 2023—2024 is generally mild, with a high level of safety. The average dietary exposure, high-exposure dietary risk and liver cancer incidence risk of adult residents of different genders in all age groups are all within the acceptable range. However, it is still necessary to continuously pay attention to and monitor the food safety risks of edible vegetable oils, strengthen supervision and further prevent and reduce the dietary exposure risk of aflatoxin B1 in edible vegetable oils.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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