Effect of 1-methylcyclopropene (1-mcp) treatment on firmness and softening related enzymes of 'sekaki' papaya fruit during ripening at ambient

Azhane Ahmad, Zainon Mohd Ali, Zamri Zainal

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

1-Methylcyclopropene (1-MCP) has been found to inhibit ethylene action and thus it can delay the fruit ripening process. The effects of 1-MCP (90 ppb for 12 h) on softening related changes were determined through physiological changes, fruit firmness and activities of the cell wall degrading enzymes including α-galactosidase, β-galactosidase, pectin methylesterase (PME) and xylanase during ripening in papaya (Carica papaya L. cv Sekaki). In this study, fruits were treated with 90 ppb concentration of 1-MCP gaseous vapors for 12 h in airtight container maintained at 28oC. After the treatment fruits were placed at ambient temperature (28oC). Papaya treated with 1-MCP experienced a significant delayed in skin color development, weight loss and reduced firmness loss compared with the fruit without 1-MCP treatment. As softening progressed, activity of the cell wall degrading enzymes in fruit without 1-MCP treatment increased significantly coincident with a rapid decline in fruit firmness. With 1-MCP application, fruit experienced a delay in activity of cell wall degrading enzymes but continued to increase until later stage of ripening. Thus it may be suggested that 1-MCP treatment may aid in delaying softening-related process and thereby extended the postharvest life and maintained the quality of the 'Sekaki' papaya fruit.

Original languageEnglish
Pages (from-to)903-909
Number of pages7
JournalSains Malaysiana
Volume42
Issue number7
Publication statusPublished - Jul 2013

Fingerprint

1-methylcyclopropene
papayas
firmness
ripening
fruits
enzymes
galactosidases
Carica papaya
cell walls
pectinesterase
xylanases
vapors
containers
ethylene
ambient temperature
weight loss
color

Keywords

  • 1-Methylcyclopropene (1-MCP)
  • Cell wall degrading enzymes
  • Softening-related changes

ASJC Scopus subject areas

  • General

Cite this

Effect of 1-methylcyclopropene (1-mcp) treatment on firmness and softening related enzymes of 'sekaki' papaya fruit during ripening at ambient. / Ahmad, Azhane; Ali, Zainon Mohd; Zainal, Zamri.

In: Sains Malaysiana, Vol. 42, No. 7, 07.2013, p. 903-909.

Research output: Contribution to journalArticle

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