Injúria pelo frio na qualidade pós-colheita de mangas cv. Palmer
Carregando...
Data
2011-10-01
Autores
Miguel, Ana Carolina Almeida [UNESP]
Durigan, José Fernando [UNESP]
Morgado, Cristiane Maria Ascari [UNESP]
Gomes, Ramon Felipe de Oliveira [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Sociedade Brasileira de Fruticultura
Resumo
Este trabalho objetivou estabelecer os binômios temperatura x tempo, que podem ocasionar injúria pelo frio em mangas 'Palmer'. Frutos colhidos no estádio de vez foram cuidadosamente transportados para laboratório, onde foram selecionados, padronizados quanto à coloração, ao tamanho e à ausência de injúrias, e tratados com fungicida antes de serem armazenados a 2 ºC, 5 ºC e 12 ºC, por até 28 dias. Os frutos foram avaliados semanalmente quanto à ocorrência de podridões, danos pelo frio, atividade respiratória, coloração da casca e da polpa, massa fresca, firmeza da polpa, teores de sólidos solúveis (SS) e de acidez titulável (AT), e relação SS/AT. Os resultados indicaram que os sintomas de injúrias pelo frio foram exteriorizados após 7 dias do armazenamento refrigerado a 2 ºC ou 5 ºC, com os frutos não diferindo quanto à gravidade dos danos. A presença dos danos não impediu o desenvolvimento da coloração característica da polpa, porém levou ao escurecimento da casca e afetou o amadurecimento normal dos frutos. Frutos armazenados a 12 ºC não apresentaram sinais de danos pelo frio ou prejuízos aos seus processos metabólicos normais.
This study aimed to establish the binomials temperature vs. time, which can cause chilling injury in mangoes 'Palmer'. Semi-ripe fruits were harvested and carefully transported to the laboratory where they were selected, standardized according to the color, size and absence of injuries and treated with fungicide before being stored at 2 ºC, 5 ºC and 12 ºC up to 28 days. The fruits were evaluated weekly for the occurrence of decay, chilling injury, respiratory activity, peel and pulp color, fresh weight mass, firmness, soluble solids (SS) and titratable acidity (TA) and ratio. The results showed that the symptoms of chilling injuries were exteriorized after 7 days of refrigerated storage at 2 ºC or 5 ºC, and the fruits did not differ in the severity of the damage. The presence of damage did not prevent the development of the characteristic pulp color, although it has led to the darkening of the skin and has affected the normal ripening of fruits. Fruit stored at 12 ºC showed no signs of cold damage, and no impairment to their normal metabolic processes.
This study aimed to establish the binomials temperature vs. time, which can cause chilling injury in mangoes 'Palmer'. Semi-ripe fruits were harvested and carefully transported to the laboratory where they were selected, standardized according to the color, size and absence of injuries and treated with fungicide before being stored at 2 ºC, 5 ºC and 12 ºC up to 28 days. The fruits were evaluated weekly for the occurrence of decay, chilling injury, respiratory activity, peel and pulp color, fresh weight mass, firmness, soluble solids (SS) and titratable acidity (TA) and ratio. The results showed that the symptoms of chilling injuries were exteriorized after 7 days of refrigerated storage at 2 ºC or 5 ºC, and the fruits did not differ in the severity of the damage. The presence of damage did not prevent the development of the characteristic pulp color, although it has led to the darkening of the skin and has affected the normal ripening of fruits. Fruit stored at 12 ºC showed no signs of cold damage, and no impairment to their normal metabolic processes.
Descrição
Palavras-chave
Mangifera indica, Postharvest, Refrigeration, Mangifera indica, Pós-colheita, Refrigeração
Como citar
Revista Brasileira de Fruticultura. Sociedade Brasileira de Fruticultura, v. 33, n. spe1, p. 255-260, 2011.