Effects of melatonin treatment on maintenance of the quality of fresh-cut pitaya fruit


Citation

Ma C., . and Cao S., . and Wang R., . and Ba L. J., . and Ji N., . and Luo D. L., . Effects of melatonin treatment on maintenance of the quality of fresh-cut pitaya fruit. pp. 796-805. ISSN 22317546

Abstract

The present work investigated the effects of different concentrations of melatonin (0 50 100 and 200 mol L-) on the quality and antioxidant activity of fresh-cut pitaya (Hylocereus undatus) fruits. Results revealed that melatonin treatments significantly increased the firmness total soluble solids and titratable acidity of post-harvest fruits and inhibited the rate of weight loss. When compared with the control treatment the application of melatonin maintained higher contents of vitamin C and total phenolics in fresh-cut pitaya fruits during storage. Melatonin also decreased cell membrane electrolyte leakage and polyphenol oxidase activity with 100 mol L- melatonin treatment showing the best effects. In addition 100 mol L- melatonin significantly increased the activities of the antioxidant enzymes superoxide dismutase (SOD) catalase (CAT) and peroxidase (APX) thus decreasing the accumulation of H‚‚O‚‚ and O‚‚- during storage. Collectively these findings indicate that melatonin treatment could contribute to delaying the ripening and senescence of fresh-cut pitaya fruits and has potential application in the preservation of fresh-cut pitaya fruits during storage.


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Abstract

The present work investigated the effects of different concentrations of melatonin (0 50 100 and 200 mol L-) on the quality and antioxidant activity of fresh-cut pitaya (Hylocereus undatus) fruits. Results revealed that melatonin treatments significantly increased the firmness total soluble solids and titratable acidity of post-harvest fruits and inhibited the rate of weight loss. When compared with the control treatment the application of melatonin maintained higher contents of vitamin C and total phenolics in fresh-cut pitaya fruits during storage. Melatonin also decreased cell membrane electrolyte leakage and polyphenol oxidase activity with 100 mol L- melatonin treatment showing the best effects. In addition 100 mol L- melatonin significantly increased the activities of the antioxidant enzymes superoxide dismutase (SOD) catalase (CAT) and peroxidase (APX) thus decreasing the accumulation of H‚‚O‚‚ and O‚‚- during storage. Collectively these findings indicate that melatonin treatment could contribute to delaying the ripening and senescence of fresh-cut pitaya fruits and has potential application in the preservation of fresh-cut pitaya fruits during storage.

Additional Metadata

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Item Type: Article
AGROVOC Term: Hylocereus undatus
AGROVOC Term: Melatonin
AGROVOC Term: Storage
AGROVOC Term: Antioxidants
AGROVOC Term: Plant quality
AGROVOC Term: Firmness
AGROVOC Term: Vitamin c
AGROVOC Term: Phenolic content
AGROVOC Term: Superoxide dismutase
AGROVOC Term: Catalase
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:55
URI: http://webagris.upm.edu.my/id/eprint/10821

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