西非贝宁木薯和山药片的霉菌区系以及黄曲霉毒素和伏马菌素B1的自然存在情况。
Mycoflora and natural occurrence of aflatoxins and fumonisin B1 in cassava and yam chips from Benin, West Africa.
作者信息
Gnonlonfin G J B, Hell K, Fandohan P, Siame A B
机构信息
Programme on Agricultural and Food Technology, National Institute of Agricultural Research of Benin, P.O. Box 128, Porto-Novo, Benin.
出版信息
Int J Food Microbiol. 2008 Feb 29;122(1-2):140-7. doi: 10.1016/j.ijfoodmicro.2007.11.047. Epub 2007 Nov 29.
The presence of fungi, aflatoxins and fumonisin B1 in cassava and yam chips (during 28 processing and storage) were evaluated during two consecutive seasons in two agroecological zones of Benin (Northern Guinea Savannah, NGS and Sudan Savannah, SS). The Benin samples were assessed for moisture content, fungal infestation and total aflatoxin and fumonisin B1 contamination. During the two seasons, samples collected from the NGS, had moisture contents ranging from 10.0 to 14.7% in cassava chips and from 11.4 to 15.3% in yam chips. In samples from the SS, moisture content ranged from 10.1 to 14.5% and 11.1 to 14.5% in cassava and yam chips, respectively. A. flavus was the predominant fungal species. The maximum cfu/g in cassava and yam chips was 8950 and 6030, respectively. Other fungal species isolated included P. chrysogenum, M. piriformis, Phoma sorghina, F. verticillioides, R. oryzae and Nigrospora oryzae. High performance liquid chromatography analysis of both cassava and yam chips showed no contamination by either aflatoxins or fumonisin B1.
在贝宁的两个农业生态区（北几内亚草原区，NGS；苏丹草原区，SS）连续两个季节对木薯片和山药片中真菌、黄曲霉毒素及伏马菌素B1的存在情况（在加工和储存过程中）进行了评估。对贝宁的样本进行了水分含量、真菌侵染以及总黄曲霉毒素和伏马菌素B1污染情况的评估。在这两个季节中，从NGS采集的木薯片样本水分含量在10.0%至14.7%之间，山药片样本水分含量在11.4%至15.3%之间。在SS采集的样本中，木薯片和山药片的水分含量分别在10.1%至14.5%和11.1%至14.5%之间。黄曲霉是主要的真菌种类。木薯片和山药片中的最大菌落形成单位/克分别为8950和6030。分离出的其他真菌种类包括产黄青霉、梨形毛霉、高粱茎点霉、轮枝镰孢菌、米根霉和稻黑孢霉。对木薯片和山药片进行的高效液相色谱分析表明，未受到黄曲霉毒素或伏马菌素B1的污染。
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