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J Sci Food Agric. 2013 Mar 15;93(4):828-37. doi: 10.1002/jsfa.5804. Epub 2012 Jul 20.

1-methylcyclopropene effects on temporal changes of aroma volatiles and phytochemicals of fresh-cut cantaloupe.

Author information

1
CBQF/Escola Superior de Biotecnologia, Universidade Católica Portuguesa, 4200-072 Porto, Portugal.

Abstract

BACKGROUND:

Orange-fleshed cantaloupe melons have intense aroma and flavor but are very perishable during storage life. Fresh-cut processing enhances ethylene-mediated quality losses. Post-cutting 1-methylcyclopene (1-MCP) application to fresh-cut cantaloupe was evaluated for its effects on quality attributes, phytochemical content and aroma volatiles.

RESULTS:

Fresh-cut cantaloupe (Cucumis melo var. cantalupensis 'Fiesta') cubes treated with 1.0 µL L(-1) of 1-MCP for 24 h at 5 °C, packaged in vented plastic clamshells and stored under normal atmosphere at 5 °C for 9 days, preserved their soluble solids, total phenolics, total carotenoids and β-carotene contents, but significant softening occurred. A significant increase of non-acetate esters and a decrease of aldehydes occurred during storage. Most quality attributes of fresh-cut cantaloupe were unaffected by the treatment with 1-MCP. 1-MCP-treated fresh-cut cantaloupe accumulated higher levels of propyl acetate, 2-methylbutyl acetate, methyl butanoate, methyl 2-methyl butanoate, methyl hexanoate, 2-methylbutyl alcohol and phenethyl alcohol, and lower levels of benzyl alcohol and heptanal than untreated controls.

CONCLUSION:

Post-cutting treatment with 1-MCP affected nine of the flavor-important volatiles, particularly those derived from the amino acids isoleucine and phenylalanine, but had no practical effect on phytochemicals or other quality attributes.

PMID:
22821412
DOI:
10.1002/jsfa.5804
[Indexed for MEDLINE]

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