职业与健康 ›› 2026, Vol. 42 ›› Issue (3): 330-334.

• 论著 • 上一篇    下一篇

河北省11个地市市售玉米面中交链孢霉毒素检测方法及膳食暴露评估

张维, 孙福强(), 李伟, 王栋, 刘佳祥, 王文茜   

  1. 保定市疾病预防控制中心河北 保定 071000
  • 收稿日期:2025-05-18 修回日期:2025-05-28 出版日期:2026-02-01 发布日期:2026-03-06
  • 通信作者: 孙福强,E-mail:zhangwei3123@126.com
  • 作者简介:张维,女,副主任技师,主要从事理化检验与实验室质量管理工作。
  • 基金资助:
    保定市科技计划自筹经费项目(2441ZF249)

Detection methods of alternaria toxins in commercially available maize flour in 11 cities in Hebei Province and dietary exposure assessment

ZHANG Wei, SUN Fuqiang(), LI Wei, WANG Dong, LIU Jiaxiang, WANG Wenxi   

  1. Baoding Center for Disease Control and PreventionBaodingHebei 071000,China
  • Received:2025-05-18 Revised:2025-05-28 Online:2026-02-01 Published:2026-03-06
  • Contact: SUN Fuqiang,E-mail:zhangwei3123@126.com

摘要:

目的 建立玉米面中交链孢霉毒素的检测方法,调查河北省玉米面中交链孢霉毒素的污染状况,评估其对人群膳食暴露的健康风险,为食品安全的监管提供依据。方法 2023年采集河北省11个地市市售玉米面共200份,采用固相萃取-同位素稀释液相色谱-串联质谱法测定4种交链孢霉毒素含量,分析污染水平,并采用毒理学关注阀值(threshold of toxicological concern,TTC)方法评估膳食暴露风险。结果 方法验证显示线性相关系数均>0.998,回收率为86%~104%,相对标准偏差为2.2%~8.1%;玉米面中细交链孢菌酮酸(tenuazonic acid,TeA)、交链孢酚单甲醚(alternariol monomethyl ether,AME)、腾毒素(tentoxin,TEN)和交链孢酚(alternariol,AOH)检出率分别为48.00%、40.00%、15.00%和11.00%,整体检出率为64.00%;TeA、AME、TEN和AOH的含量均值分别为9.560、0.445、0.079和0.557 μg/kg;4种交链孢霉毒素膳食暴露量均低于TTC值。结论 该方法适用于玉米面中交链孢霉毒素的快速检测,河北省玉米面中该类毒素污染水平较低,健康风险可控。

关键词: 固相萃取-同位素稀释液相色谱-串联质谱法, 玉米面, 交链孢霉毒素, 膳食暴露评估

Abstract:

Objective To establish a detection method for alternaria toxins in maize flour,investigate the contamination status of alternaria toxins in corn flour in Hebei Province,assess the health risks of dietary exposure to the population,and further provide a basis for food safety supervision. Methods In 2023,a total of 200 commercial cornmeal samples were collected from 11 cities in Hebei Province. The four kinds of alternaria toxins in the samples were detected by using solid phase extraction-isotope dilution liquid chromatography-tandem mass spectrometry,and the contamination status of the four types of alternaria toxins in maize flour was analyzed. The health risk of alternaria toxins was evaluated based on the threshold of toxicological concern(TTC) method. Results The method validation demonstrated linear correlation coefficients all greater than 0.998,with recovery rates ranging from 86% to 104% and relative standard deviations(RSDs) of 2.2%-8.1%. The detection rates of tenuazonic acid(TeA),alternariol monomethyl ether(AME),tentoxin(TEN),and alternariol(AOH) in corn flour were 48.00%,40.00%,15.00%,and 11.00% respectively,with an overall detection rate of 64.00%. The average contents of TeA,AME,TEN,and AOH were 9.560,0.445,0.079,and 0.557 μg/kg,respectively. Dietary exposure levels of four types of alternaria toxins were all below the TTC values. Conclusion The method is applicable for rapid detection of alternaria toxins in cornmeal,and the contamination levels of these toxins in cornmeal from Hebei Province were found to be relatively low,indicating controllable health risks.

Key words: Solid-phase extraction coupled with isotope dilution liquid chromatography-tandem mass spectrometry, Maize flour, Alternaria toxins, Dietary exposure assessment

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