Amadurecimento de manga 'Ubá' com etileno e carbureto de cálcio na pós-colheita

Silva, Danielle Fabíola Pereira da; Salomão, Luiz Carlos Chamhum; Siqueira, Dalmo Lopes de; Cecon, Paulo Roberto; Struiving, Tiago Barbosa

doi:10.1590/s0103-84782012005000009

Cited by 17 publications

(19 citation statements)

References 11 publications

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“…It was noted that the weight loss increased linearly after mango treatment with ethrel and carbide (Silva et al, 2012). Moisture losses for vegetables in the order of 3 to 6%, as occurred in this study are enough to cause a marked decrease in quality.…”

Section: Resultssupporting

confidence: 58%

Climatization for scheduled ripening of caja-manga

Siqueira¹,

Vasconcelos²,

Vendruscolo³

et al. 2017

Afr. J. Agric. Res.

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Being a climacteric fruit, the caja harvested still green has uneven ripening. Thus, the aim of this study was to evaluate the effect of ripening techniques aiming to promote a uniform ripening and reduction of quality loss in caja-manga fruits. The treatments resulted from the application of four ripening techniques (control, muffled, ethrel, and calcium carbide) and they were evaluated in 5 times, with 3 days intervals, for 12 days (0, 3, 6, 9, and 12 days). The fruits were evaluated physico-chemically with respect to soluble solids, titratable acidity, ratio, firmness, and color. Although, all treatments promoted the fruit ripening, ethrel showed homogenous and consistent fruit characteristics with ripening reactions in 6 days, being considered the best treatment. It showed intense yellow color (85 Hue), weight loss of about 5% compared to other treatments and tissue softening (29 N firmness) and increase in soluble solids (Brix 11°).

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Section: Resultssupporting

confidence: 58%

Climatization for scheduled ripening of caja-manga

Siqueira¹,

Vasconcelos²,

Vendruscolo³

et al. 2017

Afr. J. Agric. Res.

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“…In this context, there was more electrolyte leakage to fruits exposed at doses of 1000, 100, and 10 µL L -1 ethylene, demonstrating that higher doses of ethylene caused higher disruption of cell membranes (Figure 9). Interestingly, higher ion extravasation was observed in mango fruits in response to increasing ethylene doses applied (Silva, 2012). Likewise, tangerines subjected to treatments with 5 and 10 µL/L ethylene obtained higher percentages of electrolyte extravasation when compared with control treatment (Costa, 2009).…”

Section: Resultsmentioning

confidence: 92%

Action of ethylene on postharvest of summer squash ‘Menina Brasileira’

et al. 2017

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RESUMOThe purpose of this study was to evaluate the sensitivity and the physiological responses of summer squash 'Menina Brasileira' to ethylene. Immature fruits were harvested and placed in 20 L sealed buckets, in which ethylene was applied at concentrations of 0.1, 1.0, 10, 100, and 1000 µL L -1 for 24 h. Fruits were placed in buckets with no ethylene as a control treatment. Thereafter, the fruits were taken out of the buckets and maintained on bench, wherein on days 0, 2, 4, 6, and 8, they were evaluated regarding the accumulated fresh weight loss, soluble sugars, reducing and non-reducing sugars, starch, total chlorophyll, content of malondialdehyde, and electrolyte leakage. Fruits of summer squash 'Menina Brasileira' showed sensitivity to exogenous ethylene with no weight loss stimulation. Additionally, the fruits exhibited small changes in nutritional quality attributes and changes in the external fruit appearance, including decreased chlorophyll content as well as damage to cell membrane characterized by increase in malondialdehyde content and electrolyte leakage. These changes were stimulated by increasing exogenous ethylene concentration. Key words: Ação do etileno na pós-colheita de abobrinha 'Menina Brasileira'O objetivo do trabalho foi avaliar a sensibilidade e as respostas fisiológicas da abobrinha 'Menina Brasileira' a diferentes doses de etileno. Os frutos foram colhidos, homogeneizados e colocados em baldes de 20 litros hermeticamente fechados, nos quais foram aplicadas doses de etileno nas concentrações de 0,1; 1,0; 10; 100 e 1000 µL L -1 durante 24 h, além do controle. Posteriormente, os frutos foram retirados dos baldes e mantidos sobre bancada, onde aos dias 0, 2, 4, 6 e 8 foram avaliados quanto à perda de peso fresco e teores de açúcar solúvel total, açúcar redutor e não redutor, amido, clorofila, conteúdo de malonaldeído e extravasamento de eletrólitos. Os frutos da abobrinha 'Menina Brasileira' apresentaram sensibilidade ao etileno exógeno sem estimular a perda de peso fresco. Ademais, os frutos exibiram pequenas alterações nos atributos de qualidade nutricional, além de mudanças no aspecto externo dos frutos, como diminuição do teor de clorofila e injúria por danos à membrana celular, caracterizada pelo aumento do conteúdo de malonaldeído e extravasamento de eletrólitos. Essas alterações foram estimuladas em resposta ao aumento da concentração de etileno.

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“…O teor de vitamina C, na maioria dos frutos, tende a diminuir durante o processo de maturação. Silva et al (2012) atribuem este decréscimo à atuação da enzima denominada ácido ascórbico oxidase (ascorbato oxidase), sendo que a atividade enzimática nos frutos maduros é maior que nos verdes, fato que pode explicar as perdas encontradas no decorrer da maturação.…”

Section: Resultsunclassified

Desenvolvimento dos frutos de lulo (Solanum quitoense LAM), em Viçosa-MG

et al. 2013

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RESUMO -O lulo é um fruto tropical e exótico, originário dos Andes, tem cor laranja quando maduro, e é uma baga globosa, assemelha-se a um tomate, o epicarpo é grosso e coriáceo, sua polpa é verde-clara, pegajosa, ácida e suculenta, contendo muitas sementes. Objetivou-se acompanhar as características físicas, químicas e fisiológicas ocorridas durante o desenvolvimento do fruto de lulo, da antese ao amadurecimento completo, em Viçosa-MG. Os frutos apresentaram um padrão de crescimento sigmoidal simples em resposta à variação do tempo. O desenvolvimento do fruto foi dividido em três fases. A primeira foi até os 7,39 dias após a antese (DAA), sendo caracterizada pela alta taxa respiratória, provavelmente devido à intensa multiplicação celular, e o pericarpo apresentava coloração verde-clara. A segunda fase estendeu-se a partir dos 7,39 até os 57,63 DAA, sendo caracterizada pelas taxas máximas das características estudadas. A taxa respiratória cresceu até 45 DAA, mantendo-se estável até os 52 DAA. A última fase estendeu-se a partir dos 57,63 DAA até os 95,00 DAA. Essa fase foi caracterizada pela estabilização nas dimensões e no acúmulo de massa fresca. Nesse período, ocorreu a ascensão climatérica (dos 52 aos 59 DAA). O climatério respiratório ocorreu aos 66 DAA, com pico de produção de CO 2 de 110,99 mg de CO 2 kg -1 h -1 . O pós-climatério ocorreu dos 73 aos 95 DAA, quando houve aumento no teor de sólidos solúveis e queda da acidez titulável e vitamina C da polpa. Nessa fase, o pericarpo dos frutos apresentava-se com coloração alaranjada. Termos para indexação: análise de crescimento, ponto de colheita, fruto exótico. LULO (Solanum quitoense LAM) FRUITS DEVELOPMENT IN VIÇOSA -MGABSTRACT -The lulo is a tropical and exotic fruit, originating in the Andes is orange when ripe, and is a globose berry, resembling a tomato, the epicarp is thick and leathery, its pulp is light green, sticky, sour and juicy, containing many seeds. The objective of this study was to monitor the physical, chemical and physiological characteristic changes occurring during lulo fruit development, from anthesis to the full plant maturation. The fruits were harvested in the orchard of the Federal University of Viçosa and the analysis performed in the Laboratory of Fruits Analysis, from the Plant Science Department. The reproductive cycle of lulo lasted 95 days. Fruits development was divided into three phases. The first phase was up to 7.39 days after anthesis (DAA), being characterized by high respiratory rates, probably due to the intense cell multiplication and the pericarp showed light green color. The second phase occurred from 7.39 DAA to 57,63 DAA, being characterized by maximum rates of increase in dimensions of the fresh and dry fruit, the pericarp developed an intense green color and respiratory rates increased until 45 DAA and remained stable until 52 DAA. The third and final development phase occurred from 57.63 DAA to 95.00 DAA, the last day of evaluations. This phase was characterized by dimensions stabilization and accumulation of...

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Amadurecimento de manga 'Ubá' com etileno e carbureto de cálcio na pós-colheita

Abstract: 160, 80, 40, 20 and 0g m -3 , respectively. Fruits treated with ethylene showed the peak at 3, 3, 6, 6 and 12 days of storage for the concentrations 400, 200, 100, 50 and 0mL m -3

Cited by 17 publications

References 11 publications

Climatization for scheduled ripening of caja-manga

Climatization for scheduled ripening of caja-manga

Action of ethylene on postharvest of summer squash ‘Menina Brasileira’

Desenvolvimento dos frutos de lulo (Solanum quitoense LAM), em Viçosa-MG

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