Contribution of FA profile obtained by high-resolution GC/chemometric techniques to the authenticity of green and roasted coffee varieties

• Tipo: Artigo em Revista Científica Internacional
• Data: 2003

Autores

Alves, MR (Autor) Outra; Casal, S (Autor) FFUP; Oliveira, MBPP (Autor) FFUP; Ferreira, MA (Autor) Outra

Revista

Título: Journal of the American Oil Chemists' Society

Vol. 80

Páginas: 511-517

ISSN: 0003-021X

Indexação

ISI Web of Knowledge - 39 Citações

Scopus - 41 Citações

Classificação Científica

FOS: Ciências agrárias > Outras ciências agrárias

Outras Informações

ID Authenticus: P-000-GG0

Abstract (EN): Twenty-four coffee samples of different botanical and geographical origins were analyzed for their FA composition, including trans isomers. The analysis used high-resolution GC/FID/CP Sil 88 capillary column to separate FAME obtained by esterification with BF3/methanol. The purpose of this work was to verify whether this parameter could be applied in the discrimination of arabica and robusta coffees, either in green or in roasted stage. Statistical approaches were applied to check the efficiencies of some univariate and multivariate procedures, and the results permitted the conclusion that the FA profile can be used as a coffee variety marker and may inform on the historical background, mainly in terms of heat-processing conditions.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7