1-methylcyclopropene application suppresses lipid peroxidation and increases antioxidant enzyme activity in cold-stored 'Sekaki' papayas

Z. M. Ali, Z. Md Yusof, Wan Aida Wan Mustapha

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

The effects of postharvest application of 1-methylcyclopropene (1-MCP) at 270 ppb for 12h on lipid peroxidation and activities of superoxide dismutase (SOD), ascorbate peroxidase (APX) and catalase (CAT) in papayas (Carica papaya 'Sekaki') stored at 10°C for four weeks were studied. Papaya fruit treated with 1-MCP exhibited lower malondialdehyde (MDA) content when transferred to ambient temperatures (28°C) for ripening as compared to the non-MCP treated fruit suggesting that lipid peroxidation was suppressed by 1-MCP. In addition, the activities of SOD, APX and CAT were also elevated by the treatment. Chilling injury (CI) incidence was slightly alleviated; however, loss of tissue firmness was greatly arrested. These results suggest that 1-MCP being an antagonist of ethylene action may reduce cellular disintegration that involves development of oxidative stress through the enhancement of some antioxidant enzyme activity and prevent ethylene-associated degradation of cell wall components that leads to tissue softening.

Original languageEnglish
Title of host publicationActa Horticulturae
Pages243-246
Number of pages4
Volume858
Publication statusPublished - 31 Mar 2010

Publication series

NameActa Horticulturae
Volume858
ISSN (Print)05677572

Fingerprint

1-methylcyclopropene
papayas
lipid peroxidation
enzyme activity
antioxidants
Carica papaya
ascorbate peroxidase
ethylene
catalase
superoxide dismutase
fruits
chilling injury
cell wall components
angle of incidence
malondialdehyde
firmness
antagonists
ambient temperature
ripening
oxidative stress

Keywords

  • Ascorbate peroxidase
  • Catalase
  • Malondialdehyde
  • Quality
  • Superoxide dismutase

ASJC Scopus subject areas

  • Horticulture

Cite this

Ali, Z. M., Yusof, Z. M., & Wan Mustapha, W. A. (2010). 1-methylcyclopropene application suppresses lipid peroxidation and increases antioxidant enzyme activity in cold-stored 'Sekaki' papayas. In Acta Horticulturae (Vol. 858, pp. 243-246). (Acta Horticulturae; Vol. 858).

1-methylcyclopropene application suppresses lipid peroxidation and increases antioxidant enzyme activity in cold-stored 'Sekaki' papayas. / Ali, Z. M.; Yusof, Z. Md; Wan Mustapha, Wan Aida.

Acta Horticulturae. Vol. 858 2010. p. 243-246 (Acta Horticulturae; Vol. 858).

Research output: Chapter in Book/Report/Conference proceedingChapter

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