Analysis of fumonisin B pollution in corn and its products in Shaanxi Province from 2023 to 2024

Abstract

Abstract: Objective To investigate the contamination of fumonisin B in corn and its products in Shaanxi Province. Methods From 2023 to 2024,232 samples of corn and its products were collected from 10 cities in Shaanxi Province. Isotope-high performance liquid chromatography tandem mass spectrometry was used to detect fumonisins（FBs）,including FB₁,FB₂,and FB₃. Results Totally 170 samples of corn and its products were found to contain fumonisin B,with a total detection rate of 73.3%. According to EU standards,a total of 62 samples of fumonisin B-ultrasound standard were collected,with a total exceedance rate of 26.7%. The detection rates of FB₁,FB₂,and FB₃ were 73.3%,56.0%,and 37.1%,respectively,with median values of 349,58,and 80 μg/kg,respectively. There were statistically significant differences between FB₁ and FB₂ in the four types of corn and their products（FB₁：H=138.132,FB₂：H=84.679,both P<0.05）,while there was no statistically significant difference in FB₃ among the four types of corn and their products（H=6.707,P>0.05）. There were statistically significant differences among FB₁,FB₂,and FB₃ in the northern Shaanxi and Guanzhong regions（all P<0.05）. Conclusions Four types of corn and its products in Shaanxi Province have been contaminated with varying degrees of fumonisin B,with FB₁ being the most severely contaminated. It is recommended that relevant departments strengthen supervision of high-risk foods and enhance supervision of heavily polluted areas.

Key words: Corn and its products, Fumonisin B, Isotope-high performance liquid chromatography tandem mass spectrometry method, Shaanxi Province

CLC Number:

R155

DENG Tianhua, QIAO Haiou, HU Jiawei, WEI Jianjun, HAN Yifei, ZHANG Mulin. Analysis of fumonisin B pollution in corn and its products in Shaanxi Province from 2023 to 2024. [J]OCCUPATION AND HEALTH, 2025, 41(18): 2479-2483.

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