Characterization of Aspergillus flavus isolated from winemaking grapes

Soares, C.; Rodrigues, Paula; Kozakiewicz, Zofia; Lima, Nelson; Venâncio, Armando

http://hdl.handle.net/10198/954

Utilize este identificador para referenciar este registo.

Nome:	Descrição:	Tamanho:	Formato:
Cong_Internac_Painel[12].pdf		152.34 KB	Adobe PDF	Ver/Abrir

Contacte-nos

Autores

Resumo(s)

Concern about filamentous fungi in vineyards has been traditionally linked to the spoilage of grapes. However, the recent detection of ochratoxin A in wines has increased the interest in mycotoxins. Although not very common in grapes, Aspergillus flavus is occasionally isolated from grapes. A. flavus is the main producer of the well known carcinogenic mycotoxins, the aflatoxins, and the presence of this fungus and aflatoxins is of major food safety concern. The identification of A. flavus is not straightforward due mainly to similarities with its closely related species (A. parasiticus, A. nomius). Various morphological and biochemical parameters may be used for identification: Color of colonies on Czapek Medium (CZ), seriation of conidial heads, conidia ornamentation, production of aflatoxins B1, B2, G1 and G2, and production of cyclopiazonic acid.

Palavras-chave

Aspergillus flavus Identification

URI

http://hdl.handle.net/10198/954

Citação

Soares, C.; Rodrigues, Paula; Kozakiewicz, Zofia; Lima, Nelson; Venâncio, Armando (2007) – Characterization of Aspergillus flavus isolated from winemaking grapes. In XXXIII MicroBiotec JPG. Lisboa

Projetos de investigação

CARACTERIZAÇÃO DA MICOFLORA E DO PERFIL DE MICOTOXINAS NA AMÊNDOA E CASTANHA DE TRÁS-OS-MONTES DESDE A PRODUÇÃO À COMERCIALIZAÇÃO

Projeto de investigaçãoVer mais

Editora

Sociedade Portuguesa de Microbiologia e a Sociedade Portuguesa de Biotecnologia

Coleções

CIMO - Posters em Encontros Científicos Nacionais

Ver registo completo