italianoenglishfrançaisdeutschespañolportuguês
Language
Search
  • » Scientific abstract
  • » Influence of bunch exposure on anthocyanins extractability from grapes skins (Vitis vinifera L.)
  • Vicente Ferreira , LAAE, Universidad de Zaragoza
    VIDEO SEMINAR ENOFORUM 2018: 70% of commercial wines contain, without it being evident, the aromas that will cause their aromatic degradation when free SO2 level decreases. Essentially there are tw...
    Price:15 €(Tax included)
    Published on: 17/01/2019

Influence of bunch exposure on anthocyanins extractability from grapes skins (Vitis vinifera L.)

L. RUSTIONI, M. ROSSONI, M. CALATRONI and O. FAILLA; Vitis 50 (4), 137–143 (2011)

In relation to bunch exposure to solar irradiance (sun exposed vs. leaf shaded conditions), anthocyanins ripening and extractability were studied in two grape cultivars ('Croatina' and 'Pinot Noir') coming from three different vineyards in Northern Italy.

Analysis of anthocyanin content were carried out by HPLC and spectrophotometry, and a simulated maceration process was developed. Pigments extraction occurred mainly in the first few hours of the maceration process.

Anthocyanins with disubstituted B-ring showed a faster extractability than the trisubsituted ones. Bunch exposure to sunlight seemed to be important for pigment extractability timing in winemaking, showing a delay in pigments release.

This delay was only partially explained by the different pigments profile, with higher percentage of disubstituted compounds in shaded berries, because all the molecules indicated a similar extraction trend during maceration.

(We recommend that you consult the full text of this article)
Published on 18/06/2013
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 : 1,234375