Hot pressurized liquid extraction of polyphenols from the skin and seeds of vitis vinifera L. cv. Negra Criolla Pomace a Peruvian native pisco industry waste

Allca-Alca, Erik; León-Calvo, Nilton; Luque-Vilca, Olivia; Martínez-Cifuentes, Maximiliano; Pérez-Correa, José Ricardo; Mariotti-Celis, María Salomé; Human-Castilla, Nils Leander

Hot pressurized liquid extraction of polyphenols from the skin and seeds of vitis vinifera L. cv. Negra Criolla Pomace a Peruvian native pisco industry waste

dc.contributor.author	Allca-Alca, Erik	es
dc.contributor.author	León-Calvo, Nilton	es
dc.contributor.author	Luque-Vilca, Olivia	es
dc.contributor.author	Martínez-Cifuentes, Maximiliano	es
dc.contributor.author	Pérez-Correa, José Ricardo	es
dc.contributor.author	Mariotti-Celis, María Salomé	es
dc.contributor.author	Human-Castilla, Nils Leander	es
dc.date.accessioned	2021-12-14T15:22:13Z
dc.date.available	2021-12-14T15:22:13Z
dc.date.issued	2021-04-28
dc.description.abstract	The pisco industry in Peru generates large amounts of grape pomace, which is a natural source of bioactive compounds with potential nutraceutical applications. Hot pressurized liquid extraction (HPLE) with water-ethanol solvent mixtures (20–60%) at high temperatures (100–160 °C) was applied to recover polyphenols from the skin and seeds of a Peruvian pisco-industry grape-pomace waste. At the same HPLE conditions (60% ethanol, 160 °C), the seed fraction extracts contained ~6 times more total polyphenol and presented ~5 times more antioxidant activity than the extract from the skin fraction. The lowest ethanol concentration (20%) and the highest temperature (160 °C) achieved the highest recovery of flavanols with 163.61 µg/g dw from seeds and 10.37 µg/g dw from skins. The recovery of phenolic acids was maximized at the highest ethanol concentration and temperature with 45.34 µg/g dw from seeds and 6.93 µg/g dw from skins. Flavonols were only recovered from the skin, maximized (17.53 µg/g dw) at 20% of ethanol and the highest temperature. The recovery of specific polyphenols is maximized at specific extraction conditions. These conditions are the same for seed and skin extractions. This alternative method can be used in other agroindustrial wastes in order to recover bioactive compounds with potential applications in the pharmaceutical and food industry.	en
dc.identifier.citation	Agronomy, Vol. 11, N° 5, 866 (2021) p. 1-10	en
dc.identifier.doi	https://doi.org/10.3390/agronomy11050866
dc.identifier.issn	2073-4395
dc.identifier.orcid	https://orcid.org/0000-0003-1357-812X
dc.identifier.uri	http://hdl.handle.net/20.500.12254/2099
dc.language.iso	en	en
dc.publisher	MDPI	en
dc.rights	Atribución-NoComercial-CompartirIgual 3.0 Chile (CC BY-NC-SA 3.0 CL)	en
dc.rights.uri	http://creativecommons.org/licenses/by-nc-sa/3.0/cl/
dc.subject.other	Skin	en
dc.subject.other	Seeds	en
dc.subject.other	Grape pomace	en
dc.subject.other	Pisco industry	en
dc.subject.other	Polyphenols	en
dc.subject.other	Hot pressurized liquid extraction	en
dc.title	Hot pressurized liquid extraction of polyphenols from the skin and seeds of vitis vinifera L. cv. Negra Criolla Pomace a Peruvian native pisco industry waste	en
dc.type	Artículo	en