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Enzymatic degradation of chlorogenic acid using a polyphenol oxidase preparation from the white-rot fungus Trametes versicolor ATCC 42530

Paper ID Volume ID Publish Year Pages File Format Full-Text
36207 45124 2006 7 PDF Available
Title
Enzymatic degradation of chlorogenic acid using a polyphenol oxidase preparation from the white-rot fungus Trametes versicolor ATCC 42530
Abstract

The aim of this work was to investigate an enzymatic process to decrease the chlorogenic acid (CGA) content in a model system with pure CGA as substrate. The results obtained in the model system indicated that CGA can be decreased by 98% in a 3 h reaction time period. The effects of pH, temperature, and enzyme and substrate concentrations on the rate of the enzymatic reaction were studied. It was found that the optimum pH and temperature were 4.3 and 45 °C, respectively. For low enzyme concentrations, a linear relationship exists between the enzyme concentration and the initial reaction rate. However, this linearity disappears when the enzyme concentration was higher than 1 nkat/mL. With respect to the CGA concentration, the enzyme was saturated with substrate when its concentration was 0.13 mM. The kinetics of CGA decrease in the model system was also investigated. The results from this study can help to understand better the enzymatic process in a more complex system where sunflower meal is used as a source of substrate.

Keywords
Sunflower meal; Chlorogenic acid; Polyphenolic substances; Polyphenol oxidase; Trametes versicolor; Enzymatic processes
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Enzymatic degradation of chlorogenic acid using a polyphenol oxidase preparation from the white-rot fungus Trametes versicolor ATCC 42530
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 41, Issue 8, August 2006, Pages 1835–1841
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us