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Type: Artigo
Title: Aspergillus section Flavi diversity and the role of A. novoparasiticus in aflatoxin contamination in the sugarcane production chain
Author: Iamanaka, Beatriz Thie
Lopes, Aline de Souza
Martins, Ligia Manoel
Frisvad, Jens Christian
Medina, Angel
Magan, Naresh
Sartori, Daniele
Massi, Fernanda Pelisson
Pelegrinelli Fungaro, Maria Helena
Taniwaki, Marta Hiromi
Abstract: The presence of Aspergillus section Flavi and aflatoxins in sugarcane as well as in by-products, such as molasses, sugar, yeast cream and dried yeast, collected from different fields and processing plants in Sao Paulo state, were investigated throughout the sugarcane production chain. A total of 246 samples was collected and analyzed and 226 isolates of Aspergillus section Flavi were isolated. Aspergillus section Flavi strains were found in sugarcane juice, milled sugarcane, stalk, soil and dried yeast samples. Among the isolates of Aspergillus section Flavi submitted to polyphasic identification (n = 57), Aspergillus novoparasiticus and Aspergillus arathidicola were predominantly found. A significant proportion of the isolates (84.5%) were found to have morphological and physiological characteristics of A. novoparasiticus. Most samples, with the exception of sugar, showed some aflatoxin contamination. The highest level was in dried yeast with an average of 2.55 mu g/kg and maximum value of 10.19 mu g/kg. This is the first report of contamination of sugarcane by A. novoparasiticus
Subject: Cana-de-açucar
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.ijfoodmicro.2018.12.024
Date Issue: 2019
Appears in Collections:FEA - Artigos e Outros Documentos

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