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Revista Brasileira de Fruticultura
Article . 2012 . Peer-reviewed
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Revista Brasileira de Fruticultura
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Armazenamento refrigerado de abacates 'Hass'

Authors: Donadon, Juliana Rodrigues; Durigan, José Fernando; Morgado, Cristiane Maria Ascari; Santos, Leandra Oliveira;

Armazenamento refrigerado de abacates 'Hass'

Abstract

Este trabalho objetivou determinar a ocorrência de injúria pelo frio em abacates 'Hass'. Na primeira Etapa, os abacates foram armazenados a 5ºC (77% UR), 10ºC (79% UR) e 15ºC (79% UR) por até 21 dias. Aos 7; 14 e 21dias de armazenamento, um lote com 36 frutos foi levado ao ambiente (22°C e 77% UR) para amadurecimento. Testou-se também o armazenamento a 2°C (74% UR) e 4°C (77% UR) por até 45 dias, sendo que aos 15; 30 e 45 dias, um lote com a mesma quantidade de frutos foi levado ao ambiente, mantido a 22°C e 77% UR. Frutos armazenados ao ambiente, desde o início, foram considerados testemunha. Avalaram-se a aparência e a luminosidade da polpa. Os frutos armazenados a 10°C e 15°C não apresentaram sintomas de injúrias pelo frio, que foram observados nos frutos armazenados a 2°C, por períodos superiores a 15 dias, e nos mantidos a 4°C, por 30 dias. Quando levados ao ambiente, os frutos armazenados a 2°C conservaram aparência aceitável para o consumo (nota = 3) por até10 dias, e os armazenados a 4°C, por até 12 dias. Na segunda Etapa, analisaram-se a intensidade respiratória e a atividade das enzimas peroxidase (POD), polifenoloxidase (PPO), poligalacturonase (PG) e pectinametilesterase (PME) nos frutos armazenados a 2ºC, por 45 dias, em comparação com os testemunha. A atividade das enzimas associadas ao escurecimento, POD e PPO, assim como das associadas ao amaciamento da polpa, PME e PG, foi inibida pelo armazenamento a 2ºC, mas readquiriram atividade mais elevada que nos frutos-testemunha, quando foram transferidos ao ambiente, indicando estímulo devido aos danos pelo frio.

Country
Brazil
Keywords

Enzimas, armazenamento refrigerado, enzymes, Plant culture, injúria pelo frio, Enzymes, Cold storage, SB1-1110, cold storage, chilling injury, Persea americana, enzimas, Armazenamento refrigerado

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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gold