中文摘要：本研究评估了尼日利亚国内市场销售的花生中的真菌和多种霉菌毒素及其对消费者造成的相关风险。研究显示，除了其它霉菌毒素/代谢物混合物的组合影响之外，消费尼日利亚被霉菌毒素污染的花生也许会面临肝癌的风险。为了公众健康利益需要在尼日利亚花生价值链中增加针对性的干预措施。
外文摘要：The fungal and multi-mycotoxin profiles of groundnuts sold in domestic markets in Nigeria as well as the associated risk to consumers were assessed in the present study. Four hundred fungal isolates representing mainly Aspergillus [58.6%: Aspergillus section Flavi (37.1%) and A. niger-clade (21.5%)1, Penicillium (40.9%) and Fusarium (0.5%) were isolated from 82 (97.6%, n = 84) groundnut samples collected from four agro-ecological zones (AEZs) of Nigeria. The incidence of aflatoxin-producing A.flavus isolates (71%) was significantly (p < 0.05) higher in the groundnuts than that of the non-aflatoxigenic isolates (29%). Fifty-four fungal metabolites [including afla-toxins (AFB(1), AFB(2), AFG(1), AFG(2) and AFM(1) ), beauvericin (BEAU), cyclopiazonic acid (CPA), moniliformin, nivalenol and ochratoxin A] and four bacterial metabolites were detected in the groundnuts by liquid chromatography tandem mass spectrometry. Afiatoxins (39%; max: 2076 pg/kg; mean: 216 pg/kg) were detected in more samples than any other mycotoxin. About 25, 23 and 14% of the samples respectively were above the 2 pg/kg AFB1, 4 and 20 pg/kg total aflatoxin limits of the European Union and US FDA respectively. The mean margins of exposure of AFB(1) and total aflatoxins for adult consumers were 1665 and 908, respectively, while mean estimated daily intake values for infants, children and adults were <0.1% for BEAU and 4% for CPA. Consumers of mycotoxin contaminated groundnuts in Nigeria may therefore be at a risk of liver cancer in addition to other combinatory effects of mycotoxin/metabolite cocktails. There is need for increased targeted interventions in the groundnut value chain in Nigeria for public health benefits.
外文关键词：Aflatoxin；Consumer safety；Fungi; Groundnut；Mycotoxins；Trade；Risk assessment
作者：Oyedele, Oluwawapelumi A.；Ezekiel, Chibundu N.；Sulyok, Michael等.
作者单位：Babcock Univ
期刊名称：INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
期刊影响因子：3.445
出版年份：2017
出版刊次：-
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