Calidad poscosecha de arazá rojo

Abstract

The objective of this work was to evaluate the effect of different temperatures and storage periods on the physic-chemical attributes of red gooseberries fruits. This research was carried out at the State University of Santa Catarina (CAV / UDESC), in Lages (SC), Brazil, with fruits harvested in February, 2016. The experimental design was completely randomized with four replicates of 20 fruits each, in a 2x5 factorial radomized, with two temperatures (2oC and 25oC ± 2oC) and five storage periods (0, 3, 6, 9 and 12 days). The analyzed variables were: mass loss, soluble solids, titratable acidity, soluble solubility/titratable acidity ratio, pH and vitamin C. Fruit mass loss occurred at both temperatures throughout the storage period. Soluble solids content increased in fruits at 2°C. A minimum point (1.83%) was observed for titratable acidity in fruits packed at 25°C. A minimum point was observed (3.17%) for the pH of the fruits at 2°C and maximum point (3,21) for fruits at 25°C. Fruits at 2°C presented lower vitamin C content in seven days of storage, with 17.23mg 100g-1 pulp. At 25°C, a lower vitamin C content was observed at day six, with a content of 26.69mg 100g-1 pulp. With the accomplishment of this work, it can be concluded that, the use of refrigeration at 2°C, for up to 12 days, presents itself as an alternative for the conservation of red-gooseberries fruits, remaining the main physicochemical characteristics of the fruits.