polygalacturonase


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polygalacturonase

[‚päl·i‚ga‚lak′tu̇r·ə‚nās]
(biochemistry)
An enzyme that catalyzes the hydrolysis of glycosidic linkage of polymerized galacturonic acids.
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They prepared the purees using a commercial polygalacturonase and a highly purified pectinesterase.
Optimizing grape rootstock production and export of inhibitors of Xylella fastidiosa polygalacturonase activity.
Among the depolymerases, polygalacturonase is the major enzyme with a hydrolytic function and lyases (or transeleminases) which cleaves glycosidic bonds forming unsaturated product[DELTA](4,5-D-galacturonate) through transelimination reaction [34].
2004) Compound Enzyme Fungal Type Cellulose Cellulase ERM, ECM Cellobiohydrolase ERM, ECM Hemicellulose Xylanase ERM, ECM Mannosidasc ERM Galactosidase ERM Arabinosidase ERM Glucanasc ERM Pectin Polygalacturonase ERM, ECM Tannins Polyphenol oxidase ERM, ECM Peroxidase ERM, ECM Catcchol oxidase ERM, ECM Tyrosinase ERM, ECM Lactase ERM, ECM Lignin Manganese peroxidases ECM Lignase ERM Proteins Acid protease ERM, ECM Chitin Chifnase ERM, ECM Lipids Fatty acid esterase ECM
2000), woolliness results from an imbalance of peptic enzyme activity during the ripening stage, with increased pectinmethylesterase enzyme activity, inhibition of polygalacturonase activity and an accumulation of peptic substances with low degrees of esterification, which prevent these substances from being soluble.
Moreover, a study on minimally processed papaya showed that softening enzymes like polygalacturonase are increased within 24 hours as compared to the whole fruit [25].
The enzymes involved in the breakdown of pectin include pectate lyase, polygalacturonase and pectinesterase.
Production of polygalacturonase and increase of longitudinal gas permeability in southern pine by brown-rot and white-rot fungi.
However, the activity of F-5 significantly increased after the endo-[alpha]-D-(1 [right arrow] 4) polygalacturonase digestion of F-5 (Fig.
Antisense RNA inhibition of polygalacturonase gene expression in transgenic tomatoes.
He has also purified a polygalacturonase inhibitor protein (PGIP) from grapefruit peel.