Conservação da manga (Mangifera indica L.) cv espada em atmosfera modificada sob temperaturas de refrigeração.

Abstract

Mango (Mangifera indica L.) type ' Espada' in nature in the apprenticeship of physiologic maturity, with green peel - apprenticeship 1 of development, they were conditioned individually, in trays of polyethylene tereftalato (11,0 x 11,0 x 2,5 cm) of internal dimensions, not covered externamente with plastic packing of chloride of polyvinyl PVC with stretching not perforated (FPVC) and with perforated plastic (PP) put upon in trays of polyethylene tereftalato, stored for 35 days to 10, 12, 14 °C and atmosphere (76- 85% UR), with analysis every 7 days of storage. Fruits without packing served as control. During the period of the experiment they were made evaluations of the color of the peel and of the pulp using not climbs hedonic structured; for change of green coloration to I yellow. You was also determined the loss of fresh mass, revenue of the fruit, firmness, total soluble solids, sugars reducers, acidity total titrable, pH, relationship SST/acidez and vitamin C along the storage, seeking to identify the treatment that best conserved the characteristics initials of the product and it increased the useful life of the mango. The data were analyzed delineament entirely casualizado, willing in factorial outline. The analyses were accomplished in quadruplicate, for each repetition, using the average among both. The influence of the factors (temperature, packing and storage period) and your interactions on the answers were submitting to the variance analysis and compared the averages by the test of Tukey. Being considered the obtained results can be concluded that the use of the packing's FPVC with stretching not perforated and PP, providing a modified atmosphere, associated to the low temperature reduced the loss of fresh mass, it prolonged the useful life of the fruits with maintenance of the color of the peel and of the pulp, it didn't influence in the evolution of the tenors of acidity total titrable, total soluble solids, sugars reducers and pH, more it interfered in the evolution of the vitamin tenor C. xiii The fruits without packing and stored in conditions atmosphere they obtained useful life of 14 days.