| Title: | 1-methylcyclopropene effects on temporal changes of aroma volatiles and phytochemicals of fresh-cut cantaloupe |
| Author(s): | Amaro AL; Fundo JF; Oliveira A; Beaulieu JC; Fernandez-Trujillo JP; Almeida DP; |
| Address: | "CBQF/Escola Superior de Biotecnologia, Universidade Catolica Portuguesa, 4200-072 Porto, Portugal" |
| ISSN/ISBN: | 1097-0010 (Electronic) 0022-5142 (Linking) |
| 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 microL L(-1) of 1-MCP for 24 h at 5 degrees C, packaged in vented plastic clamshells and stored under normal atmosphere at 5 degrees C for 9 days, preserved their soluble solids, total phenolics, total carotenoids and beta-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" |
| Keywords: | Aldehydes/metabolism Carotenoids/metabolism Cucumis melo/*metabolism *Cyclopropanes Diet Esters/metabolism Food Preservation/*methods Food Preservatives Food Storage/methods Fruit/*metabolism Humans *Odorants Phenols/metabolism *Taste Volatile Organic Com; |
| Notes: | "MedlineAmaro, Ana L Fundo, Joana F Oliveira, Ana Beaulieu, John C Fernandez-Trujillo, Juan Pablo Almeida, Domingos P F eng Research Support, Non-U.S. Gov't England 2012/07/24 J Sci Food Agric. 2013 Mar 15; 93(4):828-37. doi: 10.1002/jsfa.5804. Epub 2012 Jul 20" |
