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Titolo:
Supercritical fluid extraction of 2,4,6-trichloroanisole from cork stoppers
Autore:
Taylor, MK; Young, TM; Butzke, CE; Ebeler, SE;
Indirizzi:
Univ Calif Davis, Dept Viticulture & Enol, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 ticulture & Enol, Davis, CA 95616 USA Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 & Environm Engn, Davis, CA 95616 USA
Titolo Testata:
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
fascicolo: 6, volume: 48, anno: 2000,
pagine: 2208 - 2211
SICI:
0021-8561(200006)48:6<2208:SFEO2F>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLID-PHASE MICROEXTRACTION; GAS-CHROMATOGRAPHY; OFF-LINE; WINE; TAINT;
Keywords:
2,4,6-trichloroanisole; TCA; cork; supercritical fluid extraction; SFE; gas chromatography; cork taint; wine;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Ebeler, SE Univ Calif Davis, Dept Viticulture & Enol, Davis, CA 95616 USA Univ Calif Davis Davis CA USA 95616 Enol, Davis, CA 95616 USA
Citazione:
M.K. Taylor et al., "Supercritical fluid extraction of 2,4,6-trichloroanisole from cork stoppers", J AGR FOOD, 48(6), 2000, pp. 2208-2211

Abstract

2,4,6-Trichloroanisole (TCA) is the compound most often associated with cork taint in wines and has been shown to have a very low sensory threshold (similar to 5 ng/L in wine). A supercritical fluid extraction (SFE) method for TCA in bark cork stoppers was developed with quantification via gas chromatography-mass spectrometry with selected ion monitoring. Supercritical carbon dioxide functioned as the extracting solvent, and temperature and pressure were optimized for the extraction. The method was validated using the stable isotope H-2(5)-TCA as the internal standard. Recovery of TCA from spiked corks was found to be within 1-4% of the theoretical concentration with a coefficient of variation ranging from 2.6 to 9.7%. TCA levels in corks pulled from wines described as tainted by experienced judges ranged from 0.13 to 2.11 mu g/g of cork. The SFE procedure offers a rapid, quantitative, nearly solvent-free, and automated method for the extraction of TCA from complex solid matrices such as cork.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/07/20 alle ore 03:06:59