{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T02:35:09Z","timestamp":1790044509949,"version":"4.0.1"},"reference-count":85,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2022,12,29]],"date-time":"2022-12-29T00:00:00Z","timestamp":1672272000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Union Next-Generation EU","award":["INVESTIMENTO 1.4\u2014D.D. 1032 17\/06\/2022, CN00000022"],"award-info":[{"award-number":["INVESTIMENTO 1.4\u2014D.D. 1032 17\/06\/2022, CN00000022"]}]},{"name":"National Recovery and Resilience Plan (NRRP)","award":["INVESTIMENTO 1.4\u2014D.D. 1032 17\/06\/2022, CN00000022"],"award-info":[{"award-number":["INVESTIMENTO 1.4\u2014D.D. 1032 17\/06\/2022, CN00000022"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antioxidants"],"abstract":"<jats:p>The phenolic composition of Syrah and Chardonnay grape pomaces was studied to assess their antioxidant and prooxidant properties. Polyphenols were extracted by a \"green\" hydroalcoholic solvent (ethanol\/water 1:1 v\/v), and a detailed chemical and electrochemical characterization of the phenolic compounds was performed. The antioxidant and prooxidant capacity of the pomace was first studied by cyclic voltammetry (CV) and other reference analytical assays, then with biological tests on B16F10 metastatic melanoma cancer cells. Electrochemical data showed that, when a +0.5 V potential was applied, a low to moderate antioxidant capacity was observed. MTT test showed an increasing viability of melanoma cells, after treatments at low concentration (up to 100 \u03bcg\/mL) and for a short time (6 h), but when cells were treated with higher doses of extract (\u2265250 \u03bcg\/mL for 12\/24 h), their viability decreased from 25 to 50% vs. control, depending on treatment time, dose, and extract origin. A stronger prooxidant activity resulted when 250 \u03bcg\/mL of extract was combined with non-toxic doses of H2O2; this activity was correlated with the presence of copper in the extracts. This study shows the potential of winemaking by-products and suggests the opportunity to exploit them for the production of cosmeceuticals, or for combined therapies with approved anticancer drugs.<\/jats:p>","DOI":"10.3390\/antiox12010080","type":"journal-article","created":{"date-parts":[[2022,12,30]],"date-time":"2022-12-30T03:31:17Z","timestamp":1672371077000},"page":"80","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Anti- and Pro-Oxidant Activity of Polyphenols Extracts of Syrah and Chardonnay Grapevine Pomaces on Melanoma Cancer Cells"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1551-8817","authenticated-orcid":false,"given":"Ylenia","family":"Spissu","sequence":"first","affiliation":[{"name":"Institute of Sciences of Food Production (ISPA), 07100 Sassari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katarzyna Angelika","family":"Gil","sequence":"additional","affiliation":[{"name":"Department of Life and Environmental Sciences, University of Cagliari, 09042 Monserrato, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Antonio","family":"Dore","sequence":"additional","affiliation":[{"name":"Institute of Sciences of Food Production (ISPA), 07100 Sassari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giulia","family":"Sanna","sequence":"additional","affiliation":[{"name":"Institute of Sciences of Food Production (ISPA), 07100 Sassari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4350-2276","authenticated-orcid":false,"given":"Giuseppe","family":"Palmieri","sequence":"additional","affiliation":[{"name":"Institute for Genetic and Biomedical Research (IRGB), 07100 Sassari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrea","family":"Sanna","sequence":"additional","affiliation":[{"name":"IZS Sardegna SC Chimica, 07100 Sassari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maurizio","family":"Cossu","sequence":"additional","affiliation":[{"name":"IZS Sardegna SC Chimica, 07100 Sassari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Feten","family":"Belhadj","sequence":"additional","affiliation":[{"name":"UTICA-Union Tunisienne de l\u2019Industrie du Commerce et de l\u2019Artisanat, Rue Ferjani Bel Haj Ammar, Cit\u00e9 Khadhra, Tunis 1003, Tunisia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Boutheina","family":"Gharbi","sequence":"additional","affiliation":[{"name":"UTICA-Union Tunisienne de l\u2019Industrie du Commerce et de l\u2019Artisanat, Rue Ferjani Bel Haj Ammar, Cit\u00e9 Khadhra, Tunis 1003, Tunisia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Barbara","family":"Pinna","sequence":"additional","affiliation":[{"name":"Laboratory of Research and Analysis Cantina Argiolas, 09040 Serdiana, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7948-0822","authenticated-orcid":false,"given":"Antonio","family":"Barberis","sequence":"additional","affiliation":[{"name":"Institute of Sciences of Food Production (ISPA), 07100 Sassari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8097-3333","authenticated-orcid":false,"given":"Carlo Ignazio Giovanni","family":"Tuberoso","sequence":"additional","affiliation":[{"name":"Department of Life and Environmental Sciences, University of Cagliari, 09042 Monserrato, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guy","family":"D\u2019hallewin","sequence":"additional","affiliation":[{"name":"Institute of Sciences of Food Production (ISPA), 07100 Sassari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,12,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"197","DOI":"10.3109\/10408363.2011.631268","article-title":"Natural Polyphenols in Cancer Therapy","volume":"48","author":"Asensi","year":"2011","journal-title":"Crit. 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