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Pectin-polygalacturonase in Citrus.
1Department of Fruit Crops, University of Florida, 32611, Gainesville, Florida, USA.
Citrus pedicle extracts contain polygalacturonase and cellulase enzymes. These enzymes exhibit activity against carboxymethylcellulose and sodium polypectate, with gel electrophoresis identifying two cellulase-active regions.
Area of Science:
- Plant biochemistry
- Enzymology
Background:
- Citrus pedicles are potential sources of plant-derived enzymes.
- Polygalacturonase and cellulase play roles in plant cell wall degradation.
Purpose of the Study:
- To investigate the enzymatic activities present in citrus pedicle extracts.
- To characterize the cellulase components within these extracts.
Main Methods:
- Enzyme assays using carboxymethylcellulose and sodium polypectate.
- Gel electrophoresis to separate and identify enzyme activities.
Main Results:
- Citrus pedicle extracts demonstrated both polygalacturonase and cellulase activities.
- Gel electrophoresis revealed two distinct regions with cellulase activity.
Conclusions:
- Citrus sinensis pedicles contain active polygalacturonase and cellulase.
- The presence of multiple cellulase regions suggests enzymatic complexity.
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