RT journal article
T1 Ultrasound-assisted extraction of anthocyanins and total phenolic compounds in Vitis vinifera L. 'Tempranillo' winemaking lees
A1 Sancho Galán, Pau
A1 Amores Arrocha, Antonio
A1 Jiménez Cantizano, Ana Concepción
A1 Ferreiro González, Marta
A1 Palacios Macías, Víctor Manuel
A1 Fernández Barbero, Gerardo
A2 Ingeniería Química y Tecnología de Alimentos
A2 Química Analítica
K1 anthocyanins
K1 winemaking lees
K1 phenolic compounds
K1 ultrasound-assisted extraction
AB Winemaking lees (WL) are the less exploited by-products from the winemaking industry. This by-product is generated after the fermentation of grape must and its composition is variable, although it is mainly made up of lysed yeasts, tartaric acid, colloids, polyphenols and ashes. Of all the compounds that can be found in lees, polyphenols exhibit particularly powerful bioactive properties and their extraction for their reuse in different matrices could be a matter of particular interest.Ultrasound-assisted extraction (UAE) has been used to extract both total anthocyanins (TA) and total phenolic compounds (TPC) from lees from Vitis vinifera L. 'Tempranillo' vinification. The optimization of six extraction variables (% methanol, pH, temperature, amplitude, cycle and ratio solvent:mass) was performed using a Box-Behnken design (BBD) where TA and TPC were considered independent variables. The UAE method that has been developed in this research could be a new rapid and efficient method to extract TPC and, coupled to chromatographic methodologies, identify up to fourteen different anthocyanins from WL. The objective of this study is to determine WL polyphenolic content and its potential for further uses in other procedures aiming to create value from vinification waste.
PB Julius Kühn-Institut Institute for Grapevine Breeding Geilweilerhof 76833 Siebeldingen (Germany)
SN 2367-4156
YR 2019
FD 2019-12-13
LK http://hdl.handle.net/10498/30211
UL http://hdl.handle.net/10498/30211
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 11-nov-2026