Modified Atmosphere and Refrigeration in Postharvest Conservation of Atemoya cv. Gefner

Abstract

Aims: The objective of this study was to evaluate the effect of the modified atmosphere under refrigeration for 28 days in the Atemoya Gefner.
 Study Design: Experiment 1 and 2 was installed in a completely randomized design, in a factorial 1x4 and 2x8, respectively.
 Place and Duration of Study: The experiment was conducted in a cold chamber at the State University of Montes Claros, Brazil, between July and August 2018.
 Methodology: In the first, the percentage of fruits that presented cold injury (CI) in unpackaged fruits and stored at 15°C for six days was visually evaluated. In the second experiment two pack were used and stored at 15°C and evaluated the physical and chemical characteristics.
 Results: In the first experiment, from the 2nd day 100% of the fruits showed CI that progressed to stage 3 on the 6th day of storage. This result justifies the need to store the atemoya under modified atmosphere under 15°C for 28 days. It was found at the end of 28 days, experiment two, that the packages 1 and 2 showed quality fruits, with characteristics of ripe fruits, with 22 °Brix average values, reduced titrable acidity, light green color peel and good lightness. The pack1 showed better weight maintenance, with 1.54% of fresh weight loss against 2.36% for pack2.
 Conclusion: There was a higher solubilization of total sugars and non-reducing sugars in pack1, being this the most indicated for atemoya fruits grown in northern Minas Gerais.

Postharvest conservation of Formosa ‘Tainung 1’ papaya under refrigeration, modified atmosphere, and chitosan

“…Although similar results have not been found in the literature on papaya, studies that have used similar treatments and the same storage conditions with plastic film reported similar RS behaviors in other fruits, as observed for atemoya (AGUIAR et al, 2019), cagaita (CARNEIRO et al, 2015), and banana (PRILL et al, 2012.…”

“…This result is justified by the increase in RS (Fig. 5a), which, according to AGUIAR et al (2019), is due to the hydrolysis of sucrose into glucose and fructose during ripening due to respiration. The interaction time × treatment × film shows that the behavior of the control from 7 to 21 days (Fig.…”

Cloreto de cálcio retarda a senescência e aumenta a qualidade pós-colheita de atemoia ‘Thompson’

“…Esses valores se encontram acima do observado por Mota Filho et al (2013) [23], que verificaram que a polpa dos frutos de atemoieira, submetidos a diferentes intensidades de poda, apresentaram médias de 25,2 °Brix, assim como Aguiar et al (2019) [24], que verificaram acréscimo linear no teor de sólidos solúveis de atemoia durante o armazenamento, com média variando entre 10 e 23 °Brix. Para esses autores, os valores de sólidos solúveis foram menores que o verificado no presente trabalho, fato que pode ter sido ocasionado, principalmente, pelo acondicionamento dos frutos sob o uso da atmosfera modificada nestes trabalhos, proporcionando assim menor perda de massa e consequente menor incremento no teor de sólidos solúveis.…”