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

Title
Contribution of FA profile obtained by high-resolution GC/chemometric techniques to the authenticity of green and roasted coffee varieties
Type
Article in International Scientific Journal
Year
2003
Authors
Alves, MR
(Author)
Other
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Oliveira, MBPP
(Author)
FFUP
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Ferreira, MA
(Author)
Other
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Journal
Vol. 80
Pages: 511-517
ISSN: 0003-021X
Scientific classification
FOS: Agrarian Sciences > Other Agrarian Sciences
Other information
Authenticus ID: 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.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 7
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