Effect of short-term anoxic treatment on internal browning and antioxidant ability in pineapple cv. Phulae

Phonyiam O., . and Kongsuwan A., . and Setha S., . Effect of short-term anoxic treatment on internal browning and antioxidant ability in pineapple cv. Phulae. pp. 521-527. ISSN 2231-7546

The effect of short-term anoxic treatment on antioxidant ability and reduction of internal browning in pineapple cv. Phulae was investigated. Fruits previously exposed to pure N2 gas at flow rate of approximately 700-900 ml/min for 24 hours were packed in polypropylene bags (OTR 3 060 cc/m2day) placed in corrugated boxes and stored at 10C for 28 days and subsequently held for 3 days at 25C. Untreated fruits served as the control. Internal browning and changes in malondialdehyde (MDA) hydrogen peroxide (H2O2) glutathione and vitamin C contents activities of superoxide dismutase (SOD) and catalase (CAT) and antioxidant activities measured by 2 2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays were observed during storage. The result showed that 24 hours of anoxic treatment significantly reduced internal browning while maintaining the quality of Phulae pineapple compared with untreated fruits. MDA and H2O2 contents were lower in anoxic treated fruits compared with untreated while glutathione and vitamin C contents were higher. Changes of SOD activities were not significantly affected by anoxic treatment but CAT activities was initially higher in treated fruit compared with untreated until 14 days of storage. Scavenging activities by DPPH and FRAP assays increased with storage time and they were significantly higher in anoxic treated fruit than non-treated when fruits were held at 25C. Short-term anoxic treatment reduced internal browning and maintained overall acceptance quality of Phulae pineapple by inducing enzymatic and non-enzymatic antioxidant activities thus delaying increases in H2O2 content and lipid peroxidation.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/23%20(02)%202016/(10).p...

Abstract

The effect of short-term anoxic treatment on antioxidant ability and reduction of internal browning in pineapple cv. Phulae was investigated. Fruits previously exposed to pure N2 gas at flow rate of approximately 700-900 ml/min for 24 hours were packed in polypropylene bags (OTR 3 060 cc/m2day) placed in corrugated boxes and stored at 10C for 28 days and subsequently held for 3 days at 25C. Untreated fruits served as the control. Internal browning and changes in malondialdehyde (MDA) hydrogen peroxide (H2O2) glutathione and vitamin C contents activities of superoxide dismutase (SOD) and catalase (CAT) and antioxidant activities measured by 2 2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays were observed during storage. The result showed that 24 hours of anoxic treatment significantly reduced internal browning while maintaining the quality of Phulae pineapple compared with untreated fruits. MDA and H2O2 contents were lower in anoxic treated fruits compared with untreated while glutathione and vitamin C contents were higher. Changes of SOD activities were not significantly affected by anoxic treatment but CAT activities was initially higher in treated fruit compared with untreated until 14 days of storage. Scavenging activities by DPPH and FRAP assays increased with storage time and they were significantly higher in anoxic treated fruit than non-treated when fruits were held at 25C. Short-term anoxic treatment reduced internal browning and maintained overall acceptance quality of Phulae pineapple by inducing enzymatic and non-enzymatic antioxidant activities thus delaying increases in H2O2 content and lipid peroxidation.

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Item Type:	Article
AGROVOC Term:	Pineapples
AGROVOC Term:	Browning
AGROVOC Term:	Anoxia
AGROVOC Term:	Antioxidants
AGROVOC Term:	Polypropylene
AGROVOC Term:	malondialdehyde
AGROVOC Term:	Hydrogen peroxide
AGROVOC Term:	Glutathione
AGROVOC Term:	Superoxide dismutase
AGROVOC Term:	Catalase
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/22530

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