Variation in the Phenolic Composition of Cork Stoppers from Different Geographical Origins

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Reis, SF (Author) Other; Teixeira, T (Author) Other; Pinto, J (Author) Other; Oliveira, V (Author) Other; Lopes, P (Author) Other; Cabral, M (Author) Other; Nuno Mateus (Author) FCUP; de Pinho, PG (Author) FCUP; Pereira, H (Author) Other; Victor de Freitas (Author) FCUP

Journal

Title: Journal of Agricultural and Food Chemistry

Vol. 68

ISSN: 0021-8561

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-00T-7T1

DOI: 10.1021/acs.jafc.0c00586

Abstract (EN): Cork stopper granulates from five geographical origins from Portugal and six from Spain were analyzed regarding polyphenol composition by HPLC-DAD/ESI-MS and geographical discrimination studied by near-infrared spectroscopy (NIRS). The phenolic composition of the eleven origins ranged from 30 to 52 mg/g cork granulates, with vescavaloninic acid, castalagin, sanguisorbic acid dilactone, vescalagin, castavaloninic acid, dehydrated tergallic-C-Glc, and ellagic acid being the major compounds. NIRS revealed to be a powerful tool to discriminate origins and predict the concentration of polyphenols. However, polyphenols do not fully explain the discrimination of geographical origins. Variability in the polyphenol composition of cork stoppers is not significantly influenced by geographical location but probably may be more related to the plant genetics, tree age, and phytosanitary and edaphoclimatic conditions.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8