| Journal: | Revista ciencia agronomica |
| Database: | PERIÓDICA |
| System number: | 000324508 |
| Authors: | Costa, Ana Karoline Freire da1 Freire, Francisco das Chagas Oliveira2 Vieira, Icaro Gusmao Pinto3 Andrade, Juliana Alves Mendes, Francisca Noelia Pereira3 |
| Institutions: | 1Universidade Federal do Ceara, Centro de Ciencias, Fortaleza, Ceara. Brasil 2Empresa Brasileira de Pesquisa Agropecuaria, Agroindustria Tropical, Fortaleza, Ceara. Brasil 3Parque de Desenvolvimento Tecnologico do Ceara, Fortaleza, Ceara. Brasil |
| Year: | 2009 |
| Season: | Jul-Sep |
| Volumen: | 40 |
| Number: | 3 |
| Pages: | 455-460 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | A comprehensive study was carried out on the fungi associated with kelnels of Brazil nut and peanut normally traded in Fortaleza city (State of Ceará, Brazil). Samples were obtained from local retail outlets and distributors and before surface sterilization were divided into two portions, one shelled and another unshelled. Fungi were enumerated by direct plating on water agar. Data for percentage of infection were calculated and and fungi were identified to species level. Aspergillus, mainly A. flavus, and Penicillium were the most frequently species found on both commodities. The fungi Curvularia lunata, Emericella nidulans, Fusarium verticilloides, Gongronella butleri, Graphium putredinis, Macrophomina phaseolina, Paecilomyces variotii, Saksenae vasiformis, Syncephalis sphaerica e Syncephalastrum racemosum are reported for the first time associated with Brazil nut. Five isolates of A. flavus from shelled Brazil nut kernels were efficient B1 and G1 aflatoxin producers. None of the peanut A. flavus isolates was capable of producing aflatoxins. The possible occurrence of aflatoxins on these commodities and their importance to human health are discussed |
| Portuguese abstract | O isolamento e a identificação dos fungos associados a amostras de amêndoas de castanha-do-Brasil e de amendoim, com e sem casca, comercializados na cidade de Fortaleza (Ceará), foram conduzidos em laboratório. Espécies de Aspergillus, especialmente A. flavus, e de Penicillium foram as de ocorrência mais comum em ambos os produtos. Os fungos Curvularia lunata, Emericella nidulans, Fusarium verticilloides, Gongronella butleri, Graphium putredinis, Macrophomina phaseolina, Paecilomyces variotii, Saksenae vasiformis, Syncephalis sphaerica e Syncephalastrum racemosum são relatados, pela primeira vez, afetando amêndoas de castanha-do-Brasil no nosso país. Análises conduzidas com isolados de A. flavus obtidos de amêndoas de castanha-do-Brasil revelaram que cinco dos dez isolados obtidos a partir de amêndoas sem casca eram eficientes produtores das aflatoxinas B1 e G1. Nenhum isolado do amendoim se mostrou aflatoxigênico. A provável presença de aflatoxinas nesses dois produtos no Brasil, e sua importância para a saúde dos consumidores são também discutidas |
| Disciplines: | Agrociencias, Biología |
| Keyword: | Fitopatología, Frutales, Hongos, Contaminación microbiana, Infecciones fúngicas, Aflatoxinas, Bertholletia excelsa, Arachis hypogaea |
| Keyword: | Agricultural sciences, Biology, Fruit trees, Phytopathology, Fungi, Microbial pollution, Fungal infections, Aflatoxins, Bertholletia excelsa, Arachis hypogaea |
| Full text: | Texto completo (Ver HTML) |
