Effects of 1-methylcyclopropene on quality of Chokanan mangoes stored at ambient

M. Pauziah and W.H. Wan Mohd Reza Ikwan

Abstract

The effects of postharvest application of 1-methylcyclopropene (1-MCP) on fruit ripening of Chokanan mango were evaluated. Chokanan mango harvested at 11 weeks after fruit set, were exposed to five concentrations of 1-MCP (250, 500, 1000, 2000 and 4000 ppb) for 18 h at 20 ºC in sealed containers. Non-treated fruits (0 ppb) were used as control. The fruits were then subjected to 100 ppm exogenous ethylene for 24 h to induce uniform ripening. All the fruits were stored for 13 days at room temperature (27 ºC) for ripening and quality evaluation. The results showed that fruits exposed to 1-MCP maintained the quality during storage by delaying the changes in skin and flesh colour, retaining the fruit firmness and slowing down changes in total soluble solid and total titratable acidity contents. However, 1-MCP did not affect weight loss and ascorbic acid content of the fruits. Among the treatments, 500 ppb was the most effective concentration for extending the shelf-life of the fruits by 7 days longer than the non-treated ones without compromising their quality.

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