Data/hora: 21/06/2024 11:34:20

Biblioteca(s): | Embrapa Agroindústria de Alimentos.
Data corrente: | 07/11/2011
Data da última atualização: | 08/11/2011
Autoria: | FREITAS-SILVA, O.; SOUZA, M. de L. M. de; VENÂNCIO, A.
Afiliação: | OTNIEL FREITAS SILVA, CTAA; MARIA DE LOURDES MENDES DE SOUZA, CTAA; ARMANDO VENÂNCIO, UNIVERSIDADE DO MINHO-PT.
Título: | Tracing fungi secondary metabolites in Brazil nuts using LC-MS/MS.
Ano de publicação: | 2011
Fonte/Imprenta: | Drug Metabolism Letters, v. 5, n. 3, p. 150-155, Aug. 2011.
DOI: | 10.2174/187231211796905053
Idioma: | Inglês
Conteúdo: | This screening aimed to evaluate quantitatively the occurrence of fungal metabolites in Brazil nuts. Nuts were collected from Agroforest production areas in Amazon basin region. A total of 235 mycotoxins (including the most prominent ones) was screened by a multi-mycotoxin method based on HPLC-MS/MS. The recovery of metabolites by the method was between 56 and 136%. Fifteen mycotoxins were detected and quantified, in at least one sample; namely, aflatoxins (AFB1, AFB2, AFG1, and AFM1), sterigmatocystin, methyl-sterigmatocystin, kojic acid, citrinin, cyclosporin A, cyclosporin C, cyclosporin D, cyclosporin H, rugulosin, alternariol-methylether and emodin. This is the first study dealing with the detection of the latter nine metabolites in Brazil nuts. Alternariol-methylether (from 0.75 to 3.2 ?g/kg) was the only metabolite detected in all analyzed samples.
Palavras-Chave: | Aspergillus spp.
Thesagro: | Aflatoxina; Micotoxina.
Thesaurus Nal: | Aspergillus.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Agroindústria de Alimentos (CTAA)
Exemplares: | CTAA - (11019-1) - UPC - AP - PP - 2011/056 -  - 2011.00358 - DIS