Conservação pós-colheita de frutos de morangueiro em diferentes condições de armazenamento

Abstract

Postharvest conservation of strawberry fruits at different storage conditionsStrawberry is a product appreciated by consumers due to the organoleptic characteristics. However, strawberry fruits are highly perishable after harvest, so alternative measures to prolong the shelf life of fruits are necessary. The objective of this experiment was to evaluate the fruit postharvest conservation of strawberry cultivars under different storage conditions. Strawberry fruits of eight cultivars (Festival, Campinas, Toyonoka, Dover, Oso Grande, Camarosa, Diamante and Aromas) were grown at "Mape Frutas" farm, in Datas municipality, Minas Gerais State, Brazil. Strawberry fruits were stored at cold storage (2.34±0.78°C; 89.93±4.14% RH) and environmental conditions (17.43±2.68°C; 74.11±10.44%). The experimental design was randomized blocks in a factorial arrangement with eight strawberry cultivars and five storage times, with three replications. Fruits appearance, disease incidence, total soluble solids, titratable acidity, vitamin C and firmness were evaluated every 3 days, until 12 days. At room condition, strawberry fruit could be stored for only three days. Fruits kept in cold chamber kept quality until 12 days. Cv. Festival had the best postharvest shelf life in both storage conditions and cvs. Toyonoka and Campinas showed higher incidence of diseases and less fruit firmness when compared to the other cultivars.

Postharvest conservation of strawberries from three new accessions cultivated in the south of Minas Gerais – Brazil

“…Differences between genotypes and edaphoclimatic conditions can cause variations in the levels of TSS, according to Goto (1998). The TSS contents, an indicator of the amount of sugars present in the fruit (Portela et al, 2012), in the two tests, are compatible with those described for strawberry, ranging from 4.2 to 10.3 ºBrix (Correia et al, 2011;Andrade Júnior et al, 2016). The reduction in TSS contents over time, observed in both the first and second experiments, from the first to the last evaluation, was possibly due to the consumption of energy in fruit respiration and thus there was the mobilization of part of the soluble solids (Pelayo-Zaldívar et al, 2005).…”

“…Thus, all cultivars are within the recommended TTA (Table 1). The mean values of TTA found in strawberry vary from 0.24 to 0.99 according to the cultivar and its conservation status (Costa et al, 2010;Correia et al, 2011;Ávila et al, 2012). Andrade Júnior et al (2016 observed in three different strawberry cultivars, Campinas, Oso Grande and Camarosa, TTA values equal to 0.4, 0.6 and 0.7% respectively, after 12 days of storage at a temperature of 2.34 ± 0.78 °C and relative humidity of 89.93 ± 4.14%.…”

“…The storage period and conditions and the characteristics of the fruits of each strawberry cultivar directly influence their postharvest longevity. In a cold room (at a temperature of 2.34±0.78 °C), Andrade Júnior et al (2016) observed at nine days of storage an average incidence of 6.7% of infected strawberry fruits in seven evaluated cultivars and 0% in cv. Diamond.…”

Vida Útil De Variedades De Mangaba Endêmicas Do Cerrado Em Diferentes Estádios De Maturação

“…Essa ausência de uma coloração específica que identifique o fruto maduro, além de sua alta perecibilidade, e a obtenção quase que exclusivamente extrativista dos frutos de mangaba compromete o escoamento e produção comercial do fruto, principalmente, na região do cerrado (Veira Neto et al, 2002). Diante das dificuldades de escoamento de produção desses frutos principalmente, devido a alta perecibilidade, a conservação pós-colheita da mangaba é imprescindível (Mirahmadi et al, 2011;Andrade Júnior et al, 2016).…”