中文摘要：干果中出现产毒霉菌和霉菌毒素是一个世界性的问题，但可供我国利用的信息很有限。用单步洗涤结合UPLC-MS / MS法分析了从我国购买的220份干果(葡萄干、杏干、大枣和枸杞) 中的17种真菌毒素（即链格孢菌毒素，赭曲霉毒素A（OTA），棒曲霉毒素（PAT）和单端孢霉烯族毒素）。结果表明，需要更广泛地监测这些霉菌毒素污染物，特别是农产品中的链格孢菌毒素，并指出了在我国设定链格孢菌毒素的最大限量的重要性。
外文摘要：Occurrence of toxigenic molds and mycotoxins on dried fruits is a worldwide problem, but limited information is available in China. A total of 220 dried fruits (raisins, dried apricots, dates and wolfberries) purchased from China were analyzed for 17 mycotoxins (i.e., Alternaria toxins, ochratoxin A (OTA), patulin (PAT) and trichothecenes) by UPLC-MS/MS, combined with a single-step cleanup. The result showed that at least one mycotoxin was detected in 142 samples (64.6%). The lowest incidence of contaminated samples was observed in dried apricots (48.2%), and the highest incidence in dried wolfberries (83.3%). The Alternaria toxins seemed to be the major problem in dried fruits, rather than OTA or PAT. Tenuazonic acid (TeA) was the predominant mycotoxin, in both frequency and concentration, ranging from 6.9 to 5665.3 μg kg-1, followed by tentoxin (TEN; 20.5%), and mycophenolic acid (MPA; 19.5%). Moreover, raisins are more likely to be contaminated with OTA than the other dried fruits. Penicillic acid (PA) was detected only in dried dates, and PAT was detected only in one apricot sample. In addition, our results also showed that the simultaneous presence of 2-4 mycotoxins was observed in 31.4% of dried fruits. TeA and TEN were the most frequent combination, detected in 29 (13.2%) samples, followed by TeA and MPA with a prevalence of 11.4%. Therefore, the results of this survey suggest the need for wider monitoring on the contamination of these mycotoxins, especially Alternaria toxins in agro-products, and indicate the importance of setting a maximum limit for Alternaria toxins in China.
外文关键词：mycotoxins；Alternaria toxins；dried fruits；UPLC-MS/MS；China
作者：Wei, DZ；Wang, Y；Jiang, DM；Feng, XY；Li, J；Wang, M
作者单位：Beijing Res Ctr Agr Stand & Testing
期刊名称：TOXINS
期刊影响因子：3.571
出版年份：2017
出版刊次：9
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