[Survey on chloropropanol esters content and characteristics in commercially available vegetable oils and exposure assessment].

OBJECTIVE

To investigate the levels of chloropropanol esters(MCPDE) in commercially available vegetable oils in 2022 and their potential dietary health risks.

METHODS

Dietary exposure assessment was conducted using the simple distribution approach, based on 2022 national food safety risk monitoring data and 2018-2020 national food consumption data.

RESULTS

The average detection rates of 3-monochloro-1, 2-propanediol(3-MCPDE) and 2-monochloro-1, 3-propanediol(2-MCPDE) in vegetable oils were 67.07% and 58.84%, respectively, with average concentrations of 0.86 and 0.47 mg/kg. The average exposure levels of 3-MCPDE and 2-MCPDE from vegetable oil intake in the general population were 0.374 and 0.204 μg/(kg·BW·d), respectively; for high-consumption individuals(P95), the exposure levels were 1.062 and 0.580 μg/(kg·BW·d). The average exposure levels across age groups ranged from 0.298 to 0.737 and 0.163 to 0.403 μg/(kg·BW·d), respectively; while P95 exposures ranged from 0.834 to 2.011 and 0.456 to 1.099 μg/(kg·BW·d), respectively. For the general population and the P95 group in China, the 3-MCPDE exposure from vegetable oil intake accounted for 9.4% and 26.6% of their provisional maximum tolerable daily intake(PMTDI), respectively. while the average and P95 exposure levels across all age groups accounted for 7.5%-18.4% and 20.9%-50.3% of their respective PMTDI.

CONCLUSION

3-MCPDE and 2-MCPDE were detected in some commercially available vegetable oils in China, with 3-MCPDE levels higher than 2-MCPDE. Dietary exposure assessments indicate that the current health risk from 3-MCPDE in vegetable oils is low.