中文摘要：2013年8月15日至28日在贝宁和尼日尔对西非公开市场出售的玉米质量进行了后续研究。作为对早期研究的补充，本次评估不仅包括零售商，还包括批发商和玉米生产商。通过对玉米物理质量相关参数和黄曲霉毒素污染去评估样品。研究发现，与零售商和生产者相比，批发商的杂质含量高出三倍，粮食害虫频率高出16倍。在两国的市场都注意到黄曲霉毒素含量超过了公认的20个ppb的标准，而马兰维尔市场批发商的粮食受黄曲霉毒素污染的比例最高。
外文摘要：A follow-up study on the quality of maize for sale in West African public markets was carried out in Benin and Niger from August 15-28,2013. Complementing the earlier study, this present assessment included not only retailers but also wholesalers and maize producers. Samples were evaluated for parameters related to the physical quality of the maize and for aflatoxin contamination. Most maize value chain actors process their offered grain using traditional methods for threshing,winnowing and drying. Maize for sale in the markets surveyed had an average moisture content ranging between 12 and 14%. Non grain impurities amounted to 0-2.3% while mouldy grains ranged between 0.2 and 0.8%. The impurity level in grain was three times higher among wholesalers compared to retailers and producers. An insect pest, the Larger Grain Borer (Prostephanus truncatus (Horn) was found only in Benin but Sitophilus zeamais Motschulsky, Cryptolestes ferrugineus Stephens,and Tribolium castaneum Herbst, were present in maize for sale in the markets in of both countries. Insect pest frequency was 16 times higher in wholesalers' grain compared to that of retailers and producers. Aflatoxin levels exceeding the accepted standard of 20 ppb were noted in markets in both countries. The highest proportion of aflatoxin-contaminated maize was in wholesalers' grain in Malanville market.
外文关键词：Maize；Infestation；Aflatoxin；Market；Trader；Insect
作者：Bakoye,ON；Baoua,IB；Seyni, H；Amadou, L；Murdock, LL；Baributsa, D
作者单位：Purdue Univ
期刊名称：JOURNAL OF STORED PRODUCTS RESEARCH
期刊影响因子：1.533
出版年份：2017
出版刊次：10
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