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

Green pruning residues (GPRs) and leaves from 16 red and white 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 sho...

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Bibliographic Details
Published in:Molecules (Basel, Switzerland) Switzerland), 2020-01, Vol.25 (3), p.464
Main Authors: Acquadro, Stefano, Appleton, Silvia, Marengo, Arianna, Bicchi, Carlo, Sgorbini, Barbara, Mandrone, Manuela, Gai, Francesco, Peiretti, Pier Giorgio, Cagliero, Cecilia, Rubiolo, Patrizia
Format: Article
Language:English
Subjects:
Agricultural production
antioxidant activity
Antioxidants
By products
colorimetric in vitro assays
Colorimetry
Cultivars
Design of experiments
Design optimization
Environmental effects
Environmental impact
Experimental design
Feeds
green pruning residues
High-performance liquid chromatography
hplc-pda-esi-ms/ms
Investigations
Liquid chromatography
Optimization
Phenolic compounds
phenolic pattern
Phenols
Phytochemicals
Pruning
Quercetin
Residues
Scavenging
Solvents
Ultrasonic imaging
Ultrasound
viticulture sustainability
vitis vinifera l
Wineries & vineyards
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Summary:Green pruning residues (GPRs) and leaves from 16 red and white 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- -glucuronide, caftaric acid, and quercetin 3- -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.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules25030464