HIGH-RESOLUTION GAS-CHROMATOGRAPHIC METHOD FOR DETERMINATION OF ROBUSTA COFFEE IN COMMERCIAL BLENDS

Authors
FREGA N BOCCI F LERCKER G
Citation
N. Frega et al., HIGH-RESOLUTION GAS-CHROMATOGRAPHIC METHOD FOR DETERMINATION OF ROBUSTA COFFEE IN COMMERCIAL BLENDS, HRC. Journal of high resolution chromatography, 17(5), 1994, pp. 303-307
Citations number
11
Categorie Soggetti
Chemistry Analytical
Journal title
HRC. Journal of high resolution chromatography → ACNP
ISSN journal
09356304
Volume
17
Issue
5
Year of publication
1994
Pages
303 - 307
Database
ISI
SICI code
0935-6304(1994)17:5<303:HGMFDO>2.0.ZU;2-4
Abstract
The unsaponifiable lipid fractions extracted from Arabica and Robusta coffee samples were analyzed by high resolution gas chromatography (HR GC) in a polar column with a thermally stable stationary phase (TAP, C hrompack). Certain characteristic ratios among diterpenic alcohols wer e found to permit measurement of the amount of Robusta blended with Ar abica coffee, given a minimum content of 5-10%. Determination does not appear to be influenced by geographic origin of produce or even by de caffeination.