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Pré-resfriamento sobre a qualidade de pêssegos 'Chiripá'

Authors: Brackmann, Auri; Weber, Anderson; Giehl, Ricardo Fabiano Hettwer; Eisermann, Ana Cristina;

Pré-resfriamento sobre a qualidade de pêssegos 'Chiripá'

Abstract

O objetivo deste trabalho foi avaliar a qualidade física e química e a incidência de distúrbios fisiológicos em pêssegos 'Chiripá' submetidos a diferentes formas de pré-resfriamento. Os tratamentos avaliados foram: [1] resfriamento convencional em câmara frigorífica (-0,5°C e UR de 95%); [2] resfriamento sob ar forçado (-1,5°C) até a temperatura da polpa atingir 0°C; [3] resfriamento em água a 1°C (RA) até 15°C; [4] RA até 10°C; [5] RA até 5°C; [6] RA até 1°C. Os frutos foram analisados após 35 dias a -0,5°C, mais dois e quatro dias a 20°C. Verificou-se menor síntese de etileno nos frutos submetidos ao resfriamento lento e ao resfriamento com ar forçado, durante o período a 20°C. Nesses frutos, a quantidade de suco livre foi significativamente menor após quatro dias a 20°C, demonstrando uma aparente relação entre a reduzida síntese de etileno e a baixa suculência, o que é uma manifestação de lanosidade. Os frutos resfriados de forma lenta apresentaram firmeza da polpa mais elevada. Todas as formas de resfriamento com a água na temperatura de 1°C resultaram em maior porcentagem de frutos com manchas na epiderme, possivelmente em razão da baixa temperatura da água do pré-resfriador, indicando que o resfriamento em água não é recomendado para pêssegos 'Chiripá'.

Keywords

Prunus persica, hydrocooling, mealiness, hidroresfriamento, resfriamento em ar forçado, ethylene, respiração, etileno, forced-air precooling, lanosidade, respiration

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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!
5
Average
Average
Average
Green
gold