华北地区玉米中霉菌毒素的自然发生情况。
Natural Occurrence of Mycotoxins in Maize in North China.
机构信息
State Key Laboratory of North China Crop Improvement and Regulation, College of Plant Protection, Hebei Agricultural University, Baoding 071001, China.
出版信息
Toxins (Basel). 2022 Jul 29;14(8):521. doi: 10.3390/toxins14080521.
Mycotoxins seriously threaten the quality of maize seriously around the world. A total of 426 samples of maize kernel from northeast and northwest China were analyzed in this study. Ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was performed to analyze the mycotoxin contamination of maize samples. The results showed that it was contaminated by mycotoxins in maize. The average contamination levels of fumonisins, deoxynivalenol, aflatoxins, zearalenone, ochratoxin A, T-2 and HT-2 were 937, 431, 22, 27, 2 and 12 μg/kg, respectively. Concentration of mycotoxins in some samples exceeded their limit, but most were still at safe levels. The contamination level of FBs and DON were most significative. The proportion of mycotoxins exceeding the maximum limit standard was in the following order: 8.0%, 8.0%, 7.0%, 1.6%, 1.4% and 0.0%. The contamination of mycotoxins in maize varies from region to region.
真菌毒素严重威胁着全世界玉米的质量。本研究对中国东北和西北地区的 426 份玉米籽粒样品进行了分析。采用超高效液相色谱-串联质谱法（UPLC-MS/MS）分析玉米样品中的真菌毒素污染情况。结果表明，玉米受到了真菌毒素的污染。伏马菌素、脱氧雪腐镰刀菌烯醇、黄曲霉毒素、玉米赤霉烯酮、赭曲霉毒素 A、T-2 和 HT-2 的平均污染水平分别为 937、431、22、27、2 和 12μg/kg。一些样品中的真菌毒素浓度超过了限量标准，但大多数仍处于安全水平。FBs 和 DON 的污染水平最为显著。超过最大限量标准的真菌毒素比例依次为：8.0%、8.0%、7.0%、1.6%、1.4%和 0.0%。玉米中真菌毒素的污染情况因地区而异。
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