中文摘要：黄曲霉毒素主要由黄曲霉和寄生曲霉产生，毒性很强，可能导致肝癌等健康问题。摄入被污染的食物可能产生黄曲霉毒素暴露。本研究在免疫亲和净化后，使用高效液相色谱法测定了津巴布韦沙姆瓦和马考尼地区采收的由小农种植的花生（Arachis hypogaea）、豆类（Phaseolus vulgaris）、豇豆（Vigna unguiculata）和班巴拉坚果（Vigna subterranean）样品中AFB1、AFB2、AFG1和AFG2的含量。研究发现豆类中检测到的黄曲霉毒素含量已达最大限量的报警水平，所以需要协助小农制定采收控制措施，以减少豆类中黄曲霉毒素的污染。
外文摘要：Aflatoxins, mainly produced by Aspergillus flavus and Aspergillus parasiticus, are highly toxic and may lead to health problems such as liver cancer. Exposure to aflatoxins may result from ingestion of contaminated foods. Levels of AFB1, AFB2, AFG1 and AFG2 in samples of groundnuts (Arachis hypogaea), beans (Phaseolus vulgaris), cowpeas (Vigna unguiculata) and bambara nuts (Vigna subterranean) grown by smallholder farmers in Shamva and Makoni districts, Zimbabwe, were determined at harvesting, using high performance liquid chromatography after immunoaffinity clean-up. Aflatoxins were detected in 12.5% of groundnut samples with concentrations ranging up to 175.9 µg/kg. Aflatoxins were present in 4.3% of the cowpea samples with concentrations ranging from 1.4 to 103.4 µg/kg. Due to alarming levels of aflatoxins detected in legumes versus maximum permissible levels, there is a need to assist smallholder farmers to develop harvest control strategies to reduce contamination of aflatoxins in legumes.
外文关键词：Aflatoxins；Aspergillus flavus；Aspergillus parasiticus；groundnuts；beans；bambara nuts；cowpeas
作者：Maringe, DT；Chidewe, C；Benhura, MA；Mvumi, BM；Murashiki, TC；Dembedza, MP；Siziba, L；Nyanga, LK
作者单位：Univ Zimbabwe
期刊名称：FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE
期刊影响因子：1.467
出版年份：2017
出版刊次：1
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