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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During the ripening of the fruits, an increase in the activity of the pectinamylesterase and polygalacturonase enzymes occurs and the middle lamella disintegration occurs, processes influenced by the ethylene action, with consequent softening of the fruits (KHAN; SINGH, 2007; CANDAN et al.
Kumar YS, Varakumar S and OVS Reddy Production and optimization of polygalacturonase from mango (Mangifera indica L.
The flesh softening can be attributed to the activity of hydrolytic enzymes such as polygalacturonase and pectin methyl esterase that promote intense solubilization of pectin, cell wall constituents, resulting in loss of firmness (Silva et al.
2003) and increased methanogenic bacterial count, Lactobacilli and Streptococci and enzymatic yield of polygalacturonase and pectin esterase (El-Badawi et al.
Apparently, ethylene is regulating the activity of enzymes involved in softening such as polygalacturonase (Majumder and Mazumdar, 2002).
Polygalacturonase production by the selected strains was measured quantitatively by DNS method.
Pathnak N, Sanwal GG (1998) Multiple forms of polygalacturonase from banana fruits.
The total soluble sugars, soluble pectin and polygalacturonase (PG) enzymatic activity of rind and pulp are presented in Figure 4.