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Titre du document / Document title

Resveratrol content in some Tuscan wines

Auteur(s) / Author(s)

MOZZON M. (1) ; FREGA N. (1) ; PALLOTTA U. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Dipartimento di Scienze e Tecnologie Alimentari e Microbiologiche. Sezione di Industrie e Tecnologie Alimentari, Università di Firenze, Via Donizetti 6, 50144 Firenze, ITALIE

Résumé / Abstract

Reverse phase high performance liquid chromatography was used to determine the trans-resveratrol concentration in 40 Tuscan wines. It ranged from 0.3 to 2.1 mg/L in the 32 red wines and had a maximum of 0.1 mg/L in the 8 white wines tested, thereby confirming previous reports of the higher amounts of resveratrol in red wines. Both the cis- and trans- isomers of resveratrol were detected in all tested samples, a finding confirmed by a cross-check using HPLC and high resolution gas chromatography. Cisresveratrol levels were comparable to those of the trans-isomer. They ranged from 0.5 mg/L to 1.9 mg/L in red wines and had a maximum of 0.2 mg/L in white wines. These findings and the partitioning of resveratrol in the various parts of the grape berry suggest that the reported differences depend on differences in wine-making techniques.

Revue / Journal Title

Italian journal of food science    ISSN  1120-1770 

Source / Source

1996, vol. 8, no2, pp. 145-152 (28 ref.)

Langue / Language

Anglais

Editeur / Publisher

Chiriotti, Pinerolo, ITALIE  (1989-2009) (Revue)

Mots-clés anglais / English Keywords

Comparative study

;

Wine making

;

Italy

;

Tuscany wine

;

Phenols

;

Benzenic compound

;

Diphenols

;

Phytoalexin

;

Quantitative analysis

;

Europe

;

Mots-clés français / French Keywords

Etude comparative

;

Vinification

;

Italie

;

Vin Toscane

;

Phénols

;

Composé benzénique

;

Diphénols

;

Phytoalexine

;

Analyse quantitative

;

Resvératrol

;

Stilbène-3,4,4p-triol

;

Europe

;

Mots-clés espagnols / Spanish Keywords

Estudio comparativo

;

Vinificación

;

Italia

;

Vino Toscana

;

Fenoles

;

Compuesto bencénico

;

Difenoles

;

Fitoalexina

;

Análisis cuantitativo

;

Europa

;

Localisation / Location

INIST-CNRS, Cote INIST : 22529, 35400006000716.0070

Nº notice refdoc (ud4) : 3123149



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