Electronic microscopy examination of the influence of purified enzymatic activities on grape skin cell wall

Electronic microscopy examination of the influence of purified enzymatic activities on grape skin cell wall

Pectolytic enzymes act differently on the degradation of the cell wall of grape skin and on the libération of tannins. PG and PL degrade the pectin from the middle lamella and the primary wall which favours the liberation of granulate tannins present inside the vacuole only ones. Cellulase degrade t...

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Bibliographic Details
Main Authors: Khalid Amrani Joutei, F. Ouazzani Chahdi, D. Bouya, Cédric Saucier, Yves Glories
Format: Article
Language:English
Published: International Viticulture and Enology Society 2003-03-01
Series:OENO One
Subjects:
polygalacturonase
pectinesterase
cellulase
pectin lyase
tannin
cell wall
Online Access:https://oeno-one.eu/article/view/1679
Description
Summary:Pectolytic enzymes act differently on the degradation of the cell wall of grape skin and on the libération of tannins. PG and PL degrade the pectin from the middle lamella and the primary wall which favours the liberation of granulate tannins present inside the vacuole only ones. Cellulase degrade the cellulose fibbers and allows the liberation of tannins bound to the cellular wall. These last ones being bound to cellulosic molecules.
ISSN:2494-1271

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