pectinesterase


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pectinesterase

[¦pek·tən′es·tə‚rās]
(biochemistry)
An enzyme that catalyzes the hydrolytic breakdown of pectins to pectic acids.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Compared to an untreated control, polygalacturonase-based enzymatic puree maceration helped retain pigment levels, but was less effective than pectinesterase. Color and antioxidant activity were independent of both enzymatic treatments.
"Variation of polygalacturonase and pectinesterase synthesis by aggregated mycelium of Aspergillus niger in dependence on the carbon source," Biotechnology Letters, Vol.11, pp.255-58.
The enzymes involved in the breakdown of pectin include pectate lyase, polygalacturonase and pectinesterase. Olano-Martin et al.
Production of polygalacturonase and pectinesterase was induced by sodium polypectate, pectin and lactose.
Softening of fruits is due to deterioration in the cell wall composition [33] and it is a biochemical process involving the hydrolysis of pectin and starch by enzymes such as hydrolases, pectinesterase, and polygalacturonase [34].