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Association between aflatoxin and aflatoxigenic fungi in Brazil nut (Bertholletia excelsa H.B.K.) Ciênc. Tecnol. Aliment.
Pacheco,Ariane Mendonça; Lucas,Ana; Parente,Rosana; Pacheco,Neuzimar.
Brazil nut has a high nutritional content and is a very important trade commodity to some Latin American countries. In order to evaluate its safety, 120 samples from different stages of the productive chain were analyzed in terms of: moisture content (mc), aflatoxigenic fungi and aflatoxin (LOQ = 1.95 μg.kg-1 total aflatoxin) using TLC. Among all samples, 4 (6.7%) from the receiving area, and 5 (16.7%), from retail presented aflatoxins above the LOQ, but the amount of aflatoxins was below the LOQ after the samples were dried in the plant. The positive samples were above the limit of total aflatoxin permitted by the European Union (4.0 μg.kg-1) and Brazil (30 μg.kg-1). The mc mean was 22.43% in the receiving area, which is higher than that in the other...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bertholletia; Aspergillus; Moisture; Chromatography.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000200007
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Brazil nut sorting for aflatoxin prevention: a comparison between automatic and manual shelling methods Ciênc. Tecnol. Aliment.
Pacheco,Ariane Mendonça; Martins,Maristela.
The impact of automatic and manual shelling methods during manual/visual sorting of different batches of Brazil nuts from the 2010 and 2011 harvests was evaluated in order to investigate aflatoxin prevention.The samples were tested as follows: in-shell, shell, shelled, and pieces in order to evaluate the moisture content (mc), water activity (Aw), and total aflatoxin (LOD = 0.3 µg/kg and LOQ 0.85 µg/kg) at the Brazil nut processing plant. The results of aflatoxins obtained for the manually shelled nut samples ranged from 3.0 to 60.3 µg/g and from 2.0 to 31.0 µg/g for the automatically shelled samples. All samples showed levels of mc below the limit of 15%; on the other hand, shelled samples from both harvests showed levels of Aw above the limit. There were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bertholletia; Water activity; Moisture.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000200023
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