Next Article in Journal
The Anti-Addiction Drug Ibogaine and the Heart: A Delicate Relation
Next Article in Special Issue
Isolation and Characterisation of in Vitro and Cellular Free Radical Scavenging Peptides from Corn Peptide Fractions
Previous Article in Journal
The Content of Phenolic Compounds in Leaf Tissues of Aesculus glabra and Aesculus parviflora Walt.
Previous Article in Special Issue
Ameliorating the Effect of Astragaloside IV on Learning and Memory Deficit after Chronic Cerebral Hypoperfusion in Rats
Article Menu

Export Article

Open AccessArticle
Molecules 2015, 20(2), 2190-2207; doi:10.3390/molecules20022190

Characterisation of Mediterranean Grape Pomace Seed and Skin Extracts: Polyphenolic Content and Antioxidant Activity

1
Univ Bordeaux, ISVV, EA 4577 Œnologie, 210 Chemin de Leysotte, Villenave d'Ornon F-33140, France
2
INRA, ISVV, USC 1366 Œnologie, 210 Chemin de Leysotte, Villenave d'Ornon F-33140, France
*
Author to whom correspondence should be addressed.
Academic Editor: Maurizio Battino
Received: 25 November 2014 / Revised: 8 January 2015 / Accepted: 19 January 2015 / Published: 29 January 2015
(This article belongs to the Special Issue Natural Antioxidants and Ageing)
View Full-Text   |   Download PDF [724 KB, uploaded 29 January 2015]

Abstract

Grape pomace seeds and skins from different Mediterranean varieties (Grenache [GRE], Syrah [SYR], Carignan [CAR], Mourvèdre [MOU] and Alicante [ALI]) were extracted using water and water/ethanol 70% in order to develop edible extracts (an aqueous extract [EAQ] and a 70% hydro-alcoholic extract [EA70]) for potential use in nutraceutical or cosmetic formulations. In this study, global content (total polyphenols, total anthocyanins and total tannins), flavan-3-ols and anthocyanins were assessed using HPLC-UV-Fluo-MSn. In addition, extract potential was evaluated by four different assays: Oxygen Radical Absorbance Capacity (ORAC), Ferric Reducing Antioxidant Potential assay (FRAP), Trolox equivalent antioxidant capacity (TEAC) or ABTS assay and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay. As expected, seed pomace extracts contained higher amounts of polyphenols then skin pomace extracts. Indeed, seeds from Syrah contained a particularly important amount of total polyphenols and tannins in both type of extract (up to 215.84 ± 1.47 mg of gallic acid equivalent [GAE]/g dry weight (DW) and 455.42 ± 1.84 mg/g DW, respectively). These extracts also expressed the highest antioxidant potential with every test. For skins, the maximum total phenolic was found in Alicante EAQ (196.71 ± 0.37 mg GAE/g DW) and in Syrah EA70 (224.92 ± 0.18 mg GAE/g DW). Results obtained in this article constitute a useful tool for the pre-selection of grape pomace seed and skin extracts for nutraceutical purposes. View Full-Text
Keywords: grape pomaces; Mediterranean varieties; phenolic compounds; flavan-3-ols; anthocyanins; antioxidant activity grape pomaces; Mediterranean varieties; phenolic compounds; flavan-3-ols; anthocyanins; antioxidant activity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Ky, I.; Teissedre, P.-L. Characterisation of Mediterranean Grape Pomace Seed and Skin Extracts: Polyphenolic Content and Antioxidant Activity. Molecules 2015, 20, 2190-2207.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]

Molecules EISSN 1420-3049 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top