Post-harvest quality of bananas Prata-anã and Nanica after application of exogenous ethylene in maturation

Abstract

The objective of this study was to evaluate the post-harvest quality of bananas (Musa x paradisiaca L.) Prata-anã and Nanica after application of exogenous ethylene (C2H4) during maturation. Bananas of Prata-anã cultivar were harvested 18 weeks after the anthesis (WAA) and those of Nanica cultivar with 13 WAA. After harvest, the fruits were submitted to 0, 1, 2, 3, 4 and 5 applications of 15 mL of ethyl-5/m3 in refrigeration chambers at 15ºC and later stored at room temperature (24 to 28ºC) and refrigerated at 15°C for 10 days. Peel color, fresh weight loss, firmness, total soluble solids, total bark chlorophyll, total bark and pulp carotenoids were evaluated at 0, 3, 4, 7 and 10 days after harvest (DAH). The Assistat program was used in statistical analysis. Among the storage conditions, fruits kept under refrigeration had a longer shelf life. The Prata-anã cultivar was superior to Nanica, presenting maturation indexes ideal for transport and commercialization, evaluated for the interactions of storage temperature, ethylene (C2H4) applications and storage time. It was concluded that the banana Prata-anã requires 3 and Nanica 4 applications of ethyl, for the harvest with 18 and 13 weeks, respectively, in order to promote a fast and uniform maturation.

Formulação e aplicação de revestimentos à base de farinha de casca de banana na conservação pós-colheita dos frutos

“…Segundo Nobre et al (2018), a perda de massa fresca é comum durante o armazenamento de frutas e hortaliças, uma vez que, ocorre o consumo de nutrientes no próprio metabolismo do produto, principalmente perda hídrica, ocasionada pela transpiração provocada pela diferença de pressão entre o produto e o meio ambiente.…”

Economic analysis of fertilization management in ‘Prata-Anã’ Gorutuba banana plants

“…According to Salomão et al (2016), due to the importance of this agricultural activity for the Brazilian trade balance, with generation of jobs and source of income for small and large producers, fertilization studies with the objective of productivity gains have been carried out with banana trees of the 'Prata' subgroup (AAB), the most accepted by consumers in the national market (NOBRE et al, 2018;NOMURA et al, 2019;SANTANA JÚNIOR et al, 2020;SANTOS et al, 2017).…”

“…The 'Prata Anã' Gorutuba tree has stood out as the most produced and marketed in Minas Gerais, which explains the peculiar preference of Brazilians for the 'Prata' subgroup -responsible for 80% of the banana marketed in the country (NOBRE et al, 2018;SANTOS et al, 2017).…”