Conservação pós-colheita do fruto de tucumã (astrocaryum aculeatum g. meyer) em função do estádio de maturação e da atmosfera de armazenamento

Abstract

The objective was to evaluate the effect of the maturation stage and the storage atmosphere on post-harvest conservation of the tucumã fruit (Astrocaryum aculeatum). The experimental design used was completely randomized in a 2 × 3 factorial scheme (maturation stages and storage atmosphere), with four replications. The treatments were characterized by the type of tucumã maturation stage, and the types of storage atmosphere (ambient or modified). The data were subjected to analysis of variances, and the means were compared using the Tukey test at 5% probability. The results of the present study show that the Polypropylene and PVC film packaging may have provided the formation of a microenvironment that decreased perspiration, and consequently avoided the rapid dehydration of the skin and pulp of the tucumã fruits. The maturation stage “once and for all” presented higher amounts of carotenoids in PVC film packaging on the eighth day, except for the “mature” stage which presented significant values ​​for carotenoids on the twelfth day in mesh packaging. The total titratable acidity of the tucumã fruits was influenced both by the packaging and by the stage of maturation "de vez" and "ripe". The Polypropylene and PVC film packaging are interesting to maintain the conservation of peel, pulp, carotenoids, acidity and moisture of the tucumã fruits "once" and "ripe" within the period of twelve days.