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Aflatoxin B<sub>1</sub> in peanut oil from Western Guangdong, China, during 2016–2017
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Citations
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References
2018
Year
Aflatoxin B<sub>1</sub> (AFB<sub>1</sub>) occurrence in peanut oil samples randomly collected from family workshops in western Guangdong during 2016-2017 (n = 427) was surveyed. AFB<sub>1</sub> content was screened by enzyme-linked immunosorbent assay (ELISA) protocol and analytically confirmed with an UPLC-MS/MS method. The limit of detection of the ELISA method was 1.08 μg kg<sup>-1</sup>. The recovery values ranged from 84.4 to 92.6% with relative standard deviations of 2.2 to 4.8%. AFB<sub>1</sub> was quantified in 47 samples (22.5%) with a range of 15.4-49.9 μg kg<sup>-1</sup> in 2016 and in 33 samples (15.1%) with 8.8-22.2 μg kg<sup>-1</sup> in 2017, respectively. The AFB<sub>1</sub> contamination in peanut oil was season-depended in western Guangdong with the worst case in spring (24.2-37.9%). Overall, a significant reduction of AFB<sub>1</sub> occurrence was observed in western Guangdong after 2016. It is advisable to control AFB<sub>1</sub> in bulk and self-pressed oil from family workshops and regulate it mandatorily if necessary.
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