2017 年在中国山东省采集的玉米和小麦基样品中的天然 beauvericin 和 enniatins 的发生情况。
Natural Occurrence of Beauvericin and Enniatins in Corn- and Wheat-Based Samples Harvested in 2017 Collected from Shandong Province, China.
机构信息
NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100021, China.
出版信息
Toxins (Basel). 2018 Dec 27;11(1):9. doi: 10.3390/toxins11010009.
Totals of 158 corn and corn-based samples and 291 wheat and wheat-based samples from Shandong province, China in 2017 were analyzed for five mycotoxins including beauvericin (BEA), enniatin A (ENA), enniatin A₁ (ENA₁), enniatin B (ENB), and enniatin B₁ (ENB₁) by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). BEA was the predominant toxin detected, followed by ENB, ENA₁, ENA, and ENB₁. Corn and corn-based samples were more easily contaminated by BEA with an average concentration of 65.26 µg/kg, compared with that in wheat and wheat-based samples (average = 0.41 µg/kg). Concentrations of BEA, ENA, and ENB₁ in corn kernels, flours, and flakes were significantly different (Kruskal⁻Wallis Test, < 0.05), as well as for BEA, ENA, ENB, and ENB₁ in wheat kernels, flours, and noodles (Kruskal⁻Wallis test, < 0.05). Furthermore, 59.5% (94/158) and 59.8% (174/291) corn- and wheat-based samples were co-contaminated by at least two mycotoxins, respectively. Positive correlations in concentrations were observed in corn between levels of ENA and ENB₁, ENA and ENB, ENA₁ and ENB₁, as well as in wheat between BEA and ENA, BEA and ENA₁, BEA and ENB, BEA and ENB₁, ENA and ENA₁, ENA and ENB, ENA and ENB₁, ENA₁ and ENB, ENA₁ and ENB₁, and ENB and ENB₁. These results demonstrate that co-contamination of BEA and enniatins (ENNs) in corn- and wheat-based samples from Shandong, China is very common. More data on the contamination of five mycotoxins in cereal and cereal-based samples nationwide are needed.
2017 年，从中国山东省采集了 158 份玉米及玉米制品样本和 291 份小麦及小麦制品样本，应用高效液相色谱-串联质谱法（HPLC-MS/MS）对 5 种真菌毒素（包括 beauvericin [BEA]、enniatin A [ENA]、enniatin A₁ [ENA₁]、enniatin B [ENB] 和 enniatin B₁ [ENB₁]）进行了检测。结果显示，在所检测的样品中，BEA 是最主要的毒素，其次是 ENB、ENA₁、ENA、ENB₁。与小麦及小麦制品样本（平均含量为 0.41 µg/kg）相比，玉米及玉米制品样本更容易受到 BEA 的污染，其平均含量为 65.26 µg/kg。玉米籽粒、玉米粉和玉米片的 BEA、ENA 和 ENB₁ 浓度差异显著（Kruskal⁻Wallis 检验， < 0.05），小麦籽粒、小麦粉和面条的 BEA、ENA、ENB、ENB₁ 浓度差异也显著（Kruskal⁻Wallis 检验， < 0.05）。此外，59.5%（94/158）和 59.8%（174/291）的玉米及小麦制品样本均受到至少 2 种真菌毒素的污染。在玉米中，ENA 和 ENB₁、ENA 和 ENB、ENA₁ 和 ENB₁ 之间的浓度呈正相关，在小麦中，BEA 和 ENA、BEA 和 ENA₁、BEA 和 ENB、BEA 和 ENB₁、ENA 和 ENA₁、ENA 和 ENB、ENA 和 ENB₁、ENA₁ 和 ENB、ENA₁ 和 ENB₁、ENB 和 ENB₁ 之间的浓度也呈正相关。这些结果表明，中国山东的玉米和小麦制品样本中 BEA 和 enniatins（ENNs）的共同污染非常普遍。需要进一步获得全国范围内谷物及谷物制品样本中 5 种真菌毒素污染的更多数据。
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