{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T21:10:04Z","timestamp":1777669804786,"version":"3.51.4"},"reference-count":90,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2023,2,7]],"date-time":"2023-02-07T00:00:00Z","timestamp":1675728000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Programa Operacional Competitividade e Internacionaliza\u00e7\u00e3o","award":["POCI-01-0145-FEDER-016403"],"award-info":[{"award-number":["POCI-01-0145-FEDER-016403"]}]},{"name":"Programa Operacional Competitividade e Internacionaliza\u00e7\u00e3o","award":["LISBOA-01-0145-FEDER-016403"],"award-info":[{"award-number":["LISBOA-01-0145-FEDER-016403"]}]},{"name":"Programa Operacional Competitividade e Internacionaliza\u00e7\u00e3o","award":["SAICTPAC\/0040\/2015"],"award-info":[{"award-number":["SAICTPAC\/0040\/2015"]}]},{"name":"Programa Operacional Regional de Lisboa","award":["POCI-01-0145-FEDER-016403"],"award-info":[{"award-number":["POCI-01-0145-FEDER-016403"]}]},{"name":"Programa Operacional Regional de Lisboa","award":["LISBOA-01-0145-FEDER-016403"],"award-info":[{"award-number":["LISBOA-01-0145-FEDER-016403"]}]},{"name":"Programa Operacional Regional de Lisboa","award":["SAICTPAC\/0040\/2015"],"award-info":[{"award-number":["SAICTPAC\/0040\/2015"]}]},{"name":"FEDER e pela Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia, I.P. na componente nacional","award":["POCI-01-0145-FEDER-016403"],"award-info":[{"award-number":["POCI-01-0145-FEDER-016403"]}]},{"name":"FEDER e pela Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia, I.P. na componente nacional","award":["LISBOA-01-0145-FEDER-016403"],"award-info":[{"award-number":["LISBOA-01-0145-FEDER-016403"]}]},{"name":"FEDER e pela Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia, I.P. na componente nacional","award":["SAICTPAC\/0040\/2015"],"award-info":[{"award-number":["SAICTPAC\/0040\/2015"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Processes"],"abstract":"<jats:p>The by-products of the winemaking process can represent chances for the development of new products. This study focused on the \u201czero waste\u201d strategy development for by-products generated within winemaking from white and red grape varieties cultivated in the north of Portugal. The phytochemical properties of by-products were identified and characterized. Ohmic heating (OH) as a green extraction method was also applied to grape pomace due to their unknown effects on centesimal and phytochemical compositions. Both protein and carbohydrates were shown to be higher in grape bagasse than in stems. Additionally, red bagasse is richer in bioactive compounds (BC) than white bagasse. The sugar content was 21.91 and 11.01 g\/100 g of DW in red and white grape bagasse, respectively. The amount of protein was 12.46 g\/100 g of DW for red grape bagasse and 13.18 g\/100 g of DW for white. Regarding the extraction methods, two fractions were obtained, a liquid fraction and solid (the remainder after the methodology application). OH presented a higher antioxidant capacity than a conventional (CONV) method. In addition, both extracts presented similar contents of anthocyanins, e.g., delphinidin-3-O-glucoside, petunidin-3-O-glucoside, and peonidin-3-O-glucoside. The solid fraction presented higher amounts of protein and phenols bound to fiber than CONV, which allows its use as a functional ingredient. In conclusion, OH can be an alternative extraction method compared with CONV methods, avoiding non-food grade solvents, thus contributing to circular economy implementation.<\/jats:p>","DOI":"10.3390\/pr11020495","type":"journal-article","created":{"date-parts":[[2023,2,8]],"date-time":"2023-02-08T03:57:16Z","timestamp":1675828636000},"page":"495","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Innovation and Winemaking By-Product Valorization: An Ohmic Heating Approach"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6542-175X","authenticated-orcid":false,"given":"Marta C.","family":"Coelho","sequence":"first","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua Arquiteto Lob\u00e3o Vital, 172, 4200-374 Porto, Portugal"},{"name":"CEB\u2014Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal"}]},{"given":"Soudabeh","family":"Ghalamara","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua Arquiteto Lob\u00e3o Vital, 172, 4200-374 Porto, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1553-9693","authenticated-orcid":false,"given":"Ricardo","family":"Pereira","sequence":"additional","affiliation":[{"name":"CEB\u2014Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8139-4595","authenticated-orcid":false,"given":"Ant\u00f3nio S.","family":"Rodrigues","sequence":"additional","affiliation":[{"name":"Centre for Toxicogenomics and Human Health, Genetics, Oncology and Human Toxicology, NOVA Medical School, Faculdade de Ci\u00eancias M\u00e9dicas, Universidade Nova de Lisboa, 1169-056 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4918-3704","authenticated-orcid":false,"given":"Jos\u00e9 A.","family":"Teixeira","sequence":"additional","affiliation":[{"name":"CEB\u2014Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal"}]},{"given":"Manuela E.","family":"Pintado","sequence":"additional","affiliation":[{"name":"CBQF\u2014Centro de Biotecnologia e Qu\u00edmica Fina\u2014Laborat\u00f3rio Associado, Escola Superior de Biotecnologia, Universidade Cat\u00f3lica Portuguesa, Rua Arquiteto Lob\u00e3o Vital, 172, 4200-374 Porto, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,7]]},"reference":[{"key":"ref_1","unstructured":"Intergovernmental Organisation OIV (2019). 2019 Statistical Report on World Vitiviniculture, Organisation Internationale de la Vigne et du Vin Publication."},{"key":"ref_2","unstructured":"Fereres, E., Goldhamer, D.A., and Sadras, V. 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