Efecto del 1-MCP sobre la calidad, metabolismo respiratorio y vida postcosecha de rúcula refrigerada

María Raquel Taus; Joaquín Héctor Hasperué; Luis María Rodoni; Juan Facundo Massolo

Authors

María Raquel Taus Laboratorio de Investigación en Productos Agroindustriales (LIPA)
Joaquín Héctor Hasperué Laboratorio de Investigación en Productos Agroindustriales (LIPA)
Luis María Rodoni Laboratorio de Investigación en Productos Agroindustriales (LIPA)
Juan Facundo Massolo Laboratorio de Investigación en Productos Agroindustriales (LIPA)

Keywords:

1-methylcyclopropene, leafy vegetables, dehydration, yellowing, releasing stickers

Abstract

This work evaluated the effect of applying 1-methylcyclopropene (1-MCP) via release stickers on refrigerated rocket bundles. Forty rocket leaf bundles were washed and disinfected with NaOCl (100 ppm, pH 6.5, 10 min). Then, they were placed in bags with or without stickers (Vidre+^®). After 0, 5, 12, and 17 days at 5 ºC, the following were analyzed: appearance, deterioration index, pigments, color, weight loss, respiratory rate, soluble solids, pH, antioxidants against ABTS^•+, and phenols. The 1-MCP clearly maintained better visual quality. Although green color retention was observed with 1-MCP, it did not differ in pigments compared to the control. On the other hand, 1-MCP exhibited a lower respiratory rate at 5 and 17 days, showing less weight loss than the control at the end of the assay. Weight loss was mainly associated with water loss through respiration. 1-MCP did not affect nutritional quality but influenced respiratory metabolism (CO₂ release and water loss). Applying 1-MCP stickers in rocket leaves could be considered for individual packages and drawers covered with film or IV Gamma products.

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