Qualidade pós-colheita do mamão Formosa Tainung 01 influenciada pelo tipo de embalagem usada no transporte rodoviário

• Main Author: Santos, Carlos Eduardo Magalhães dos
• Publication Date: 2006
• Format: Master thesis
• Language: por
• Source: LOCUS Repositório Institucional da UFV
• Download full: http://locus.ufv.br/handle/123456789/4466
• topic: Carica papaya; Mamão; Pós-colheita; Embalagens; Carica papaya; Papaya; Postharvesting; Package; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA

The aim of the study was to evaluate the postharvest quality of papaya stored in different packages, after the highway transport, from the farm to the wholesale market. Papaya from the hybrid group Formosa Tainung 01 , deriving from hermaphrodite plants, produced in Pinheiros city, North of Espirito Santo State, Brazil. The fruits were manually picked in the stages 1 (0 to 10% of the skin colored yellow) and 3 (25 to 40% of the skin colored yellow), packed in different ways: in bulk, in wooden boxes, in wavy cardboard boxes and in plastic boxes covered internally with bubble-wrap, and then transported to the Postharvest Laboratory of the Federal University of Viçosa, 750 km far from the original place. After the fruits arrival to the lab, they were stored in plastic boxes covered internally with bubble-wrap and kept in environmental conditions (24,5 ± 2,0oC and 87 ± 6% R.H.), simulating the exposition in retail market. The samplings were taken each two days, to evaluate the skin color index, fresh mass loss, respiration tax, pulp firmness, soluble soils content, total titulable acidity and the mechanical injuries index. The results showed the depreciative effect of the mechanical injuries on the final quality of the papaya, as the transportation of fruits in bulk caused alterations on the fruits post harvest quality, with increase of skin color index, decrease of pulp firmness and high fresh mass loss, with values higher than 6% on the last day. The respiratory tax of the fruits transported in bulk and in wooden boxes was higher than in the other packings, showing values higher than 100 mg of CO2 Kg-1 h-1 at the end of the evaluated period. Formosa papaya transported in bulk and in wooden boxes showed the highest percentages of injured skin area (1,140 and 1,208%, respectively) in both color stages studied. The wavy cardboard boxes and the plastic boxes covered internally with bubble-wrap reduced the percentage of injured skin, proving to be promising ways to maintain the post harvest quality of Formosa papaya destinate to the internal market.