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Constituents of grape pomace from the Sicilian cultivar `Nerello Mascalese' (Articolo in rivista)
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- Label
- Constituents of grape pomace from the Sicilian cultivar `Nerello Mascalese' (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.foodchem.2004.02.022 (literal)
- Alternative label
Amico V., Napoli E.M., Renda A., Ruberto G., Spatafora C., Tringali C. (2004)
Constituents of grape pomace from the Sicilian cultivar `Nerello Mascalese'
in Food chemistry
(literal)
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- Amico V., Napoli E.M., Renda A., Ruberto G., Spatafora C., Tringali C. (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Dipartimento di Scienze Chimiche, Università di Catania, viale A. Doria 6, 95125 Catania, Italy; Istituto CNR di Chimica Biomolecolare-Sezione di Catania, via del Santuario 110, 95028 Valverde CT, (literal)
- Titolo
- Constituents of grape pomace from the Sicilian cultivar `Nerello Mascalese' (literal)
- Abstract
- A chemical study of grape (Vitis vinifera) pomace, from the red Sicilian cultivar 'Nerello Mascalese', has been carried out. The
methanolic extract was further fractionated and analysed by HPLC-UV-DAD and HPLC-MS-ESI, allowing identification of 16
flavonols or flavonol glucosides (1-16), the flavan-3-ols catechin (17) and epicatechin (18), as well as their gallate esters 19 and 20, 10
anthocyanins (21-30), 5 pyranoanthocyanins (31-35), and 3 low-molecular weight proanthocyanins (36-38). The pyranoanthocyanins
cyanidin 3-O-glucoside acetaldehyde (31), peonidin 3-O-glucoside acetaldehyde (32), petunidin 3-O-glucoside acetaldehyde
(33) and malvidin 3-O-glucoside acetaldehyde (34) have been identified for the first time in grape pomace. From quantitative
analysis of the main constituents, quercetin 3-O-glucoside (5) and quercetin 3-O-glucuronide (9) proved to be the most abundant
flavonol glycosides, and malvidin 3-O-glucoside (27) the main anthocyanin. Flash-chromatography of the EtOAc extract allowed
isolation and spectral identification of lupeol (39), oleanoic acid (40), quercetin (3) and b-sitosterol glucoside (41).
? 2004 Elsevier Ltd. All rights reserved. (literal)
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