Qualidade pós-colheita do caqui ‘Fuyu’ tratado com a promalina

Postharvest quality of "Fuyu" kaki treated with Promalin. Considering the commercial value of the 'Fuyu' kaki, this study aimed to evaluate the effect of Promalin applied to the orchard as well as the use of different storage temperatures in the quality of postharvest fruits. The...

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Veröffentlicht in:Acta scientiarum. Agronomy 2011-09, Vol.33 (3), p.519-526
Hauptverfasser: Raupp, Dorivaldo Da Silva, Porfírio-da-Silva, Luciane Curtes, Almeida, Mareci Mendes de, Borsato, Aurélio Vinicius
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container_start_page 519
container_title Acta scientiarum. Agronomy
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creator Raupp, Dorivaldo Da Silva
Porfírio-da-Silva, Luciane Curtes
Almeida, Mareci Mendes de
Borsato, Aurélio Vinicius
description Postharvest quality of "Fuyu" kaki treated with Promalin. Considering the commercial value of the 'Fuyu' kaki, this study aimed to evaluate the effect of Promalin applied to the orchard as well as the use of different storage temperatures in the quality of postharvest fruits. The cold chamber (4°C) kept the fruit with good firmness quality for commercialization over 16 days, for both treatments, without and with Promalin applied in the orchard; whereas, at room temperature (20-26°C) the periods were 16 and 8 days, respectively. The Promalin contributed to the improvement of firmness in fruits stored in the cold chamber, but it did not have a similar effect in fruits at room temperature. The activity of the polygalacturonase enzyme was coincident with the change in fruit firmness and the pH decreased. Keywords: Diospyrus kaki, refrigerated storage, firmness, polygalacturonase. Considerando a importancia comercial do caqui 'Fuyu', a pesquisa teve como objetivos avaliar o efeito da promalina aplicada durante o cultivo do caqui 'Fuyu' bem como o uso de diferentes temperaturas de armazenamento na qualidade pos-colheita dos frutos. A utilizacao da camara fria (4°C, uso comercial) manteve a boa firmeza dos frutos para a comercializacao acima de 16 dias, para os frutos, sem e com a aplicacao de promalina no pomar, enquanto que, na temperatura ambiente (20-26°C), os tempos foram de 16 e oito dias, respectivamente. A promalina contribuiu para a melhoria da firmeza dos frutos armazenados em camara fria, mas nao produziu o mesmo efeito em frutos armazenados em temperatura ambiente. A atividade da enzima poligalacturonase (PG) foi coincidente com a alteracao de firmeza dos frutos, e o pH diminuiu. Palavras-chave: Diospyrus kaki, armazenamento refrigerado, firmeza, poligalacturonase.
doi_str_mv 10.4025/actasciagron.v33i3.6015
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Considering the commercial value of the 'Fuyu' kaki, this study aimed to evaluate the effect of Promalin applied to the orchard as well as the use of different storage temperatures in the quality of postharvest fruits. The cold chamber (4°C) kept the fruit with good firmness quality for commercialization over 16 days, for both treatments, without and with Promalin applied in the orchard; whereas, at room temperature (20-26°C) the periods were 16 and 8 days, respectively. The Promalin contributed to the improvement of firmness in fruits stored in the cold chamber, but it did not have a similar effect in fruits at room temperature. The activity of the polygalacturonase enzyme was coincident with the change in fruit firmness and the pH decreased. Keywords: Diospyrus kaki, refrigerated storage, firmness, polygalacturonase. Considerando a importancia comercial do caqui 'Fuyu', a pesquisa teve como objetivos avaliar o efeito da promalina aplicada durante o cultivo do caqui 'Fuyu' bem como o uso de diferentes temperaturas de armazenamento na qualidade pos-colheita dos frutos. A utilizacao da camara fria (4°C, uso comercial) manteve a boa firmeza dos frutos para a comercializacao acima de 16 dias, para os frutos, sem e com a aplicacao de promalina no pomar, enquanto que, na temperatura ambiente (20-26°C), os tempos foram de 16 e oito dias, respectivamente. A promalina contribuiu para a melhoria da firmeza dos frutos armazenados em camara fria, mas nao produziu o mesmo efeito em frutos armazenados em temperatura ambiente. A atividade da enzima poligalacturonase (PG) foi coincidente com a alteracao de firmeza dos frutos, e o pH diminuiu. 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The cold chamber (4°C) kept the fruit with good firmness quality for commercialization over 16 days, for both treatments, without and with Promalin applied in the orchard; whereas, at room temperature (20-26°C) the periods were 16 and 8 days, respectively. The Promalin contributed to the improvement of firmness in fruits stored in the cold chamber, but it did not have a similar effect in fruits at room temperature. The activity of the polygalacturonase enzyme was coincident with the change in fruit firmness and the pH decreased. Keywords: Diospyrus kaki, refrigerated storage, firmness, polygalacturonase. Considerando a importancia comercial do caqui 'Fuyu', a pesquisa teve como objetivos avaliar o efeito da promalina aplicada durante o cultivo do caqui 'Fuyu' bem como o uso de diferentes temperaturas de armazenamento na qualidade pos-colheita dos frutos. 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title Qualidade pós-colheita do caqui ‘Fuyu’ tratado com a promalina
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