Fungi, mycotoxins and phytoalexin in peanut varieties, during plant growth in the field
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
---|---|
Data(s) |
20/10/2012
20/10/2012
2011
|
Resumo |
The aim of the present study was to analyze the mycobiota, occurrence of mycotoxins (aflatoxins and cyclopiazonic acid), and production of phytoalexin (trans-resveratrol) in two peanut varieties (Runner IAC 886 and Caiapo) during plant growth in the field. Climatic factors (rainfall, relative humidity and temperature) and water activity were also evaluated. The results showed a predominance of Fusarium spp. in kernels and pods, followed by Penicillium spp. and Aspergillus flavus. Aflatoxins were detected in 20% and 10% of samples of the IAC 886 and Caiapo varieties, respectively. Analysis showed that 65% of kernel samples of the IAC 886 variety and 25% of the Caiapo variety were contaminated with cyclopiazonic acid. trans-Resveratrol was detected in 6.7% of kernel samples of the IAC 886 variety and in 20% of the Caiapo variety. However, trans-resveratrol was found in 73.3% of leaf samples in the two varieties studied. (C) 2011 Published by Elsevier Ltd. FAPESP Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) CNPq/ANVISA ANVISA Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Cooperativa Agricola Mista da Alta Paulista (CAMAP), Tupa, Sao Paulo Cooperativa Agricola Mista da Alta Paulista (CAMAP), Tupa, Sao Paulo |
Identificador |
FOOD CHEMISTRY, v.129, n.3, p.957-964, 2011 0308-8146 http://producao.usp.br/handle/BDPI/28342 10.1016/j.foodchem.2011.05.053 |
Idioma(s) |
eng |
Publicador |
ELSEVIER SCI LTD |
Relação |
Food Chemistry |
Direitos |
restrictedAccess Copyright ELSEVIER SCI LTD |
Palavras-Chave | #Peanut #Aspergillus flavus #Aspergillus parasiticus #Aflatoxins #Cyclopiazonic acid #trans-Resveratrol #Water activity #ASPERGILLUS-FLAVUS #CYCLOPIAZONIC ACID #LIQUID-CHROMATOGRAPHY #AFLATOXINS #CORN #COLONIZATION #TEMPERATURE #SOILS #SEED #Chemistry, Applied #Food Science & Technology #Nutrition & Dietetics |
Tipo |
article original article publishedVersion |