• » Maceration
  • » Ultrasound-assisted extraction of anthocyanins and polyphenolic compounds in red lees
  • How to better manage your wine shelf-life
    Three free webinars in collaboration with Vinventions
    Infowine in partnership with Vinventions invites you to a series of 3 webinars focused on the key parameters you need to monitor at different winemaking stages to optimize wine profile and its long...
    Published on: 10/18/2021

Ultrasound-assisted extraction of anthocyanins and polyphenolic compounds in red lees

Pau Sancho Galán, Universidad de Cádiz, España

Ultrasound-assisted extraction of anthocyanins and polyphenolic compounds in red lees

Wine lees are the least exploited by-product of the wine industry. This by-product is generated after the fermentation of the grape must, and its composition is variable and is mainly composed of lysed yeasts, tartaric acid, colloids, polyphenols and ashes.

Of all the compounds that can be found in lees, polyphenols are those with particularly powerful bioactive properties, and their extraction is of interest for reuse in different food and nutraceutical matrices. The lees have been subjected to assisted extraction using different techniques.

In this research, Ultrasonic Assisted Extraction (UAE) has been used as a technique to extract both Total Anthocyanins (TA) and Total Polyphenolic Compounds (CPT) from the lees of the vinification of Vitis vinifera L. The UAE method that has been developed in this research is a new fast and efficient method to extract AT and CPT and, coupled with chromatographic methodologies, allows the identification of up to fourteen different anthocyanins in lees.

Finalist work for the ENOFORUM 2020 Award: video of the presentation by Pau Sancho Galán on the occasion of Enoforum Web (May 5-7, 2020)

Subscribe to Infowine Premium: With the annual Premium subscription, for only € 60 you can access all the content published in the magazine and the new content offered every week!

Published on 04/11/2021
Item available in spagnolo
Premium Contents Area
  • VIDEO SEMINAR (Pau Sancho Galan; streaming 12 mins)
Price:27 €(Tax included)
Related sheets
© All Right Reserved
ISSN 1826-1590 VAT: IT01286830334
powered by Infonet Srl Piacenza
Privacy Policy
This website and its related third-party services make use of cookies necessary for the purposes described in the cookie policy. If you want to learn more about cookies or how to disable them (either totally or partially), please see the cookie policy. By closing this banner, scrolling through this page, clicking on a link or continuing navigation in any other way, you consent to the use of cookies.
More informationOK

- A +
ExecTime : 2,266113