Grapevine Green Pruning Residues as a Promising and Sustainable Source of Bioactive Phenolic Compounds.

Autor:	Acquadro S; Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, 10125 Torino, Italy., Appleton S; Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, 10125 Torino, Italy., Marengo A; Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, 10125 Torino, Italy., Bicchi C; Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, 10125 Torino, Italy., Sgorbini B; Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, 10125 Torino, Italy., Mandrone M; Dipartimento di Farmacia e Biotecnologie, Alma Mater Studiorum-Università di Bologna, Via Irnerio 42, 40126 Bologna, Italy., Gai F; Istituto di Scienze e delle Produzioni Alimentari, National Research Council, L.go Paolo Braccini 2, 10095 Grugliasco (TO), Italy., Peiretti PG; Istituto di Scienze e delle Produzioni Alimentari, National Research Council, L.go Paolo Braccini 2, 10095 Grugliasco (TO), Italy., Cagliero C; Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, 10125 Torino, Italy., Rubiolo P; Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, 10125 Torino, Italy.
Jazyk:	angličtina
Zdroj:	Molecules (Basel, Switzerland) [Molecules] 2020 Jan 22; Vol. 25 (3). Date of Electronic Publication: 2020 Jan 22.
DOI:	10.3390/molecules25030464
Abstrakt:	Green pruning residues (GPRs) and leaves from 16 red and white Vitis vinifera L. cultivars from Piedmont (Italy) were studied. The investigated samples were extracted by ultrasound-assisted extraction optimized by an experimental design, and quali- and quantitatively analyzed by HPLC-PDA-MS/MS. GPRs and leaves show a similar polyphenolic pattern, with quercetin 3- O -glucuronide, caftaric acid, and quercetin 3- O -glucoside as the main components, although in variable proportions. The HPLC results were related to the antioxidant activity, measured as total phenolic content and through DPPH and ABTS assays with similar results. Colorimetric in vitro assays, offline combined with HPLC-PDA analysis, determine which compounds contribute to the antioxidant activity in terms of radical scavenging abilities. Valorization of GPRs is a potential source of natural compounds that could be of interest in the health field, increasing their economic value together with a positive effect on the environment. Competing Interests: The authors declare no conflict of interest.
Databáze:	MEDLINE
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