Effect of application of 1-methylcyclopropene (1-MCP) on postharvest quality of golden berry (Physalis peruviana).

Abstract:

The dose and effective time of exposure of 1-MCP as post-harvest treatment was determined in organic golden berry (Physalis peruviana). In this sense, the effect on the shelf life of the fruit and physiological and physicochemical characteristics during refrigerated storage was evaluated. Doses of 0.5, 1 and 1.5 μL L-1 of 1-MCP were applied with exposure times of 6, 12 and 24 hours and subsequent storage for 35 days at 4 C. The effective treatment was selected taking into account the weight loss, external damage index and decay percentage. Once the effective dose was determined, the study was complemented with the determination of the respiration rate, ethylene production, color, firmness, total soluble solids, pH, titrable acidity and maturity index. Moreover, the results are compared with organic golden berry without treatment. The treatment with doses 0.5 and 1.5 μL L-1 of 1-MCP in the different exposure times showed greater deterioration than the organic golden berry exposed to 1 μL/L for 12h and the control fruit. Therefore, the organic golden berry treated with 1 μL/L of 1-MCP for 12h increased the shelf life by 14 days respect to the control fruit. In these sense, 1-MCP trigger a decrease of respiratory rate, ethylene production, loss of luminosity. Thus, was observed retention of firmness without significantly affecting quality parameters such as pH, titrable acidity, soluble solids content and the ratio (SS/AT). The results suggest that the application of 1 μL/L of 1-MCP during 12h over organic golden berry, could recommend as post-harvest treatment that complement the storage by refrigeration due that increased the shelf life by 14 days and …

Año de publicación:

2019

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