Resumen

ORTIZ MACKINSON, M et al. Evaluación de alternativas de manejo de poscosecha en hortalizas de hoja sobre las pérdidas a nivel minorista. FAVE. Secc. Cienc. agrar. [online]. 2014, vol.13, n.1, pp.35-50. ISSN 1666-7719.

Evaluation of alternatives of leafy vegetables postharvest handling on the losses at the retail level Leafy vegetables present high losses from the growing stage until they reach the consumer. The objective of this work was to evaluate post-harvest losses of Swiss chard, green onions, leeks, radish, rocket and spinach, at the retail marketing stage. Daily measurements were taken in the summer (19th to 26th February 2013) to evaluate the effects of storage environment (with and without cold storage); hydration treatment (with and without immersion in chlorinated water), and materials used for holding bunches (tapeor Stipa sp) on the following variables: weight loss due to discarding, loss or gain of weight due to water lost or absorbed, and percentage of total losses. The experimental unit was a bunch with four replicates per treatment. Statistical analysis was performed with a model of repeated measurements over time with MIXED procedure of SAS. Cold storage reduced losses by discard and water loss, and significantly extended the storage life of all species tested. In cold room storage, losses by discard were similar in treatments with or without hydration, for all species. However, loss by discard increased in both hydrated and non-hydrated Swiss chard and green onions bunches not kept in a cold storage room. Loss of weight by water decreased in Swiss chard, radish and rocket not kept in cold storage, and in leeks and green onions stored in both environments. Holding bunches with tape reduced loss of weight by water in rocket bunches in cold room storage, and in radish and leeks not kept in cold storage.

Palabras clave : Cold storage room; Quality; Hydration.

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