中文摘要：本研究旨在评估在巴西坚果产业链不同阶段，其样品中黑曲霉的存在情况，并核实伴随这些霉菌毒素存在的分离物伏马菌素B2（FB2）的产毒能力。研究表明，尽管有几个样品中显示出黑曲霉高污染情况，但未发现有样品被FB2污染。
外文摘要：Bertholletia excelsa is the tree that produces Brazil nuts which have vast economic importance in the Amazon region and as an export commodity. The aim of this study was to assess the presence of Aspergillus section Nigri in Brazil nut samples at different stages of its production chain and to verify the toxigenic potential for fumonisin B2 (FB2) production of these isolates along with the presence of this mycotoxin in Brazil nut samples. The fungal infection ranged from 0 to 80% at the different stages of the harvest and processing chain and the water activity of the nuts from 0.273 to 0.994. A total of 1052 A. section Nigri strains were isolated from Brazil nuts and 200 strains were tested for their ability to produce FB2: 41 strains (20.5%) were FB2 producers with concentrations ranging from 0.09 to 37.25 mg/kg; 2 strains (1%) showed traces of FB2, less than the detection limit (0.08 mg/kg); and 157 (78.5%) were not FB2 producers. Although several samples showed high contamination by A. section Nigri, no sample was contaminated by FB2.
外文关键词：Bertholletia excelsa；Black Aspergilli；Fumonisins
作者：Ferranti, Larissa S.；Correa, Benedito；Fungaro, Maria Helena P.；等
作者单位：Inst Tecnol Alimentos ITAL,Brazil.
期刊名称：MYCOTOXIN RESEARCH
期刊影响因子：2.0
出版年份：2017
出版刊次：1
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