Enzymatic activity of alginate coated and pulsed light treated fresh-cut cantaloupes (Cucumis melo L. var. reticulatus cv. Glamour) during chilled storage

Nur Hanani Z. A., . and Noranizan M. A., . and S. Z. Rosli, . and Koh P. C., . and R. Karim, . and N. H. Hambali, . Enzymatic activity of alginate coated and pulsed light treated fresh-cut cantaloupes (Cucumis melo L. var. reticulatus cv. Glamour) during chilled storage. pp. 547-556. ISSN 2231-7546

The objective of the present work was to investigate the effects of alginate coating combined with repetitive pulsed light (RPL) treatment on the enzymatic activity of fresh-cut cantaloupes during chilled storage. Fresh-cut cantaloupes were coated with alginate (1.86 w/v) followed by RPL treatment (0.9 J/cm at every 48 h up to 26 d) during storage. Untreated samples and samples with alginate or RPL alone were used as controls. Enzymatic activities polyphenol oxidase (PPO) phenylalanine ammonia lyase (PAL) peroxidase (POD) pectinesterase (PE) polygalacturonase (PG) pectate lyase (PEL) -galactosidase (-Gal) -arabinofuranosidase (-AF) and cellulase of fresh-cut cantaloupes were evaluated every 4 d during storage. Neither alginate coating nor RPL treatment has any effect on the activities of PE and PEL of freshcut cantaloupes during storage. The individual treatment or in combination did not increase the PAL PPO PG and cellulase activities of fresh-cut cantaloupes throughout the storage. Alginate coating with or without RPL was effective in maintaining low POD activity of freshcut cantaloupes. In addition treatments using alginate coating or alginate coatingRPL were effective in reducing the -Gal and -AF activities of fresh-cut cantaloupes during storage. Overall alginate without or with RPL was effective in reducing changes of enzymatic activities in fresh-cut cantaloupes during storage.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/26%20(02)%202019/(20).p...

Abstract

The objective of the present work was to investigate the effects of alginate coating combined with repetitive pulsed light (RPL) treatment on the enzymatic activity of fresh-cut cantaloupes during chilled storage. Fresh-cut cantaloupes were coated with alginate (1.86 w/v) followed by RPL treatment (0.9 J/cm at every 48 h up to 26 d) during storage. Untreated samples and samples with alginate or RPL alone were used as controls. Enzymatic activities polyphenol oxidase (PPO) phenylalanine ammonia lyase (PAL) peroxidase (POD) pectinesterase (PE) polygalacturonase (PG) pectate lyase (PEL) -galactosidase (-Gal) -arabinofuranosidase (-AF) and cellulase of fresh-cut cantaloupes were evaluated every 4 d during storage. Neither alginate coating nor RPL treatment has any effect on the activities of PE and PEL of freshcut cantaloupes during storage. The individual treatment or in combination did not increase the PAL PPO PG and cellulase activities of fresh-cut cantaloupes throughout the storage. Alginate coating with or without RPL was effective in maintaining low POD activity of freshcut cantaloupes. In addition treatments using alginate coating or alginate coatingRPL were effective in reducing the -Gal and -AF activities of fresh-cut cantaloupes during storage. Overall alginate without or with RPL was effective in reducing changes of enzymatic activities in fresh-cut cantaloupes during storage.

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Item Type:	Article
AGROVOC Term:	Cucumis
AGROVOC Term:	Cucumis melo
AGROVOC Term:	Cantaloupes
AGROVOC Term:	Cucurbitaceae
AGROVOC Term:	Coating
AGROVOC Term:	Alginates
AGROVOC Term:	Cold storage
AGROVOC Term:	Enzymatic activity
AGROVOC Term:	Polyphenol oxidase
AGROVOC Term:	Phenylalanine ammonia lyase
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8081

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