Efecto del Tratamiento de Alta Presión Hidrostática en Parámetros de Calidad y Vida Útil de Cerezas

Abstract

The aim of the present work was to study the evolution of quality parameters of cherry (chromatic parameters, texture, pH, microorganism recount) treated with High Hydrostatic Pressure (HHP) and ulterior storage in refrigeration.
Cherries were vacuum packed and treated with three levels of pressure (200, 400 and 600 MPa), for 5 minutes and 10 °C, and compared with a witness (0 MPa). After treatment, cherries were stored at 4°C for 63 days, with sample extraction at pre-established days. Color was affected at the beginning of the storage, in all treatments, however, at the end of storage there were not significant differences. Texture was modified significantly in all treatments. pH resulted significantly higher in cherries without treatment at the end of storing. The treatment resulted effective in microorganism inactivation.