Inibição da ação do etileno e temperatura de armazenamento no padrão de amadurecimento de tomates

Brackmann, Auri; Giehl, Ricardo Fabiano Hettwer; Eisermann, Ana Cristina; Weber, Anderson; Heldwein, Arno Bernardo

doi:10.1590/s0103-84782009005000130

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…Weber et al (2016) found that the production of acetaldehyde in apples after eight months of storage reduced ethylene synthesis in the fruits. The acetaldehyde present in tissue, resulted from the conversion of ethanol or from the application of acetaldehyde itself, seems to be a determining factor in the inhibition of ripening, characterized by an increase in the synthesis of ethylene (BRACKMANN et al, 2009), as it acts by directly inhibiting the action of enzymes ACC synthase and ACC oxidase, which act in the conversion of ACC into ethylene (BOTH et al, 2014). In this study, the treatments with low ethylene production rate had higher concentrations of acetaldehyde, ethanol and ethyl acetate.…”

Section: Resultsmentioning

confidence: 99%

Ethanol vapor treatment of ‘Laetitia’ plums stored under modified atmosphere

et al. 2019

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The objective of this work was to evaluate the effect of ethanol vapor during storage in modified atmosphere on the ripening and maintenance of the postharvest quality of ‘Laetitia’ plums. The plums were obtained from an orchard in the municipality of Lages, SC. The experimental design adopted was completely randomized. The treatments evaluated were ethanol vapor doses (0, 2, 4, 6 and 8 mL kg-1 of fruit). The fruits were stored at 0.5±0.2°C and 92±2% RH for 30 days. Upon their removal from storage followed by another three days in room conditions (20±5ºC and 63±2% RH), the fruits were evaluated in relation to their physical and chemical attributes, incidence and intensity of internal browning, quantification of ethanol, acetaldehyde and ethyl acetate, and the activity of enzymes peroxidase and superoxide dismutase. The application of ethanol vapor was efficient in maintaining the fruits flesh firmness, reducing the evolution of the red coloring, and resulted in greater activity of enzymes peroxidase and superoxide dismutase. However, the doses evaluated were not efficient in reducing the internal browning.

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Section: Resultsmentioning

confidence: 99%

Ethanol vapor treatment of ‘Laetitia’ plums stored under modified atmosphere

et al. 2019

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“…Due to this, it is necessary to delay the ripening and senescence and to provide a firmer texture of the fruits, giving them greater resistance to the physiological, microbial and mechanical damages (BRACKMANN et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

Strobilurin and boscalid in the quality of net melon fruits

Macedo

Amaro

Ramos

et al. 2017

SCA

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Until recently, fungicides were used exclusively for disease control; however observations of physiological effects brought a new concept to the use of these products. Strobilurins have positive physiological effects on crop yield, due to the increase of liquid photosynthesis and better hormonal balance. However, boscalid complements the action of these fungicides, applied alternately or together. The aim of this study was to evaluate the effect of strobilurins (azoxystrobin and pyraclostrobin), boscalid and the mixture of these on the physical-chemical quality of net melon fruits (Cucumis melo var. Reticulatus). The experiment was conducted in the municipality of São Manuel (SP), using the hybrid of Cantaloupe M2-308 net melon, the experimental design was in randomized blocks with five replicates. The treatments used were: T1 -control; T2 -azoxystrobin 60g ha -1 of active principle (a.p.); T3 -boscalid 75g ha -1 of the a.p.; T4 -pyraclostrobin 50g ha -1 of the a.p.; T5 -boscalid (37,5g ha -1 ) of the a.p. + pyraclostrobin (25g ha -1 ) of the a.p. The first application of the treatments was carried out at fourteen days after the transplanting of the seedlings and the others at seven day intervals, totaling eight applications throughout the cycle. Two fruits of each plot were collected, which were identified for analysis in the laboratory. The following characteristics were evaluated: fresh fruit mass; mesocarp thickness, pulp texture, peel trajectory, pH, titratable acidity, soluble solids and the ratio. The results were submitted to analysis of variance and the averages compared by the Tukey test at 5% probability using the SISVAR program. The fruits of the plants treated with boscalid 75g ha -1 were the ones that showed higher concentration of soluble solids and low titratable acidity, resulting in a better ratio. Despite the lower value, the fruits of the plants treated with pyraclostrobin 50g ha -1 showed a high ratio value, besides presenting higher value for pulp texture. The mixture of boscalid (37.5g ha -1 ) + pyraclostrobin (25g ha -1 ) also showed high values of soluble solids which resulted in a good "ratio" value. Key words: Cucumis melo var. reticulatus. Post-harvest. Soluble solids. "Ratio". ResumoOs fungicidas até pouco tempo eram utilizados exclusivamente para o controle de doença, no entanto observações de efeitos fisiológicos trouxeram um novo conceito para o uso desses produtos. As estrobilurinas possuem efeitos fisiológicos positivos no rendimento das culturas, devido ao aumento da fotossíntese líquida e melhor balanço hormonal. Já o boscalida complementa a ação desses fungicidas, aplicado alternadamente ou em conjunto. O trabalho teve como objetivo avaliar o efeito da aplicação de estrobilurinas (azoxistrobina e piraclostrobina), boscalida e a mistura destes na qualidade físico- (Cucumis melo var. reticulatus). O experimento foi conduzido no município de São Manuel (SP), utilizando-se o híbrido de melão rendilhado Cantaloupe M2-308, o delineamento experimental foi em blocos ao acaso...

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“…They present a limited post-harvest life, different from climacteric fruits that react in the presence of ethylene, maturing even after being separated from the plant and producing ethylene at high rates [3]. If strawberries are harvested in an advanced maturation state, they may be difficult to commercialize because of decomposition and rot; if they are harvested before maturation and without post-harvest ripening, they may show high acidity, astringency, and no flavor [4,5]. After harvesting, careful planning is also required during storage and transport to ensure that the fruits are not degraded by microorganisms [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Fungi Active Microbial Metabolism Detection of Rhizopus sp. and Aspergillus sp. Section Nigri on Strawberry Using a Set of Chemical Sensors Based on Carbon Nanostructures

et al. 2016

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Abstract:We use a set of three resistive sensors based on undoped multi-walled carbon nanotubes, B-doped multi-walled carbon nanotubes, and N-doped multi-walled carbon nanotubes to study fungal infection in strawberries inoculated with Rhizopus sp. or with Aspergillus sp. section Nigri. We apply tristimulus analysis using the conductance variation of the sensors when exposed to the infected strawberries to distinguish between uninfected strawberries and strawberries infected with Rhizopus sp. or with Aspergillus sp. section Nigri, and to obtain a graphical representation providing a tool for the simple and fast detection and identification of the fungal infection.

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Inibição da ação do etileno e temperatura de armazenamento no padrão de amadurecimento de tomates

Cited by 5 publications

References 17 publications

Ethanol vapor treatment of ‘Laetitia’ plums stored under modified atmosphere

Ethanol vapor treatment of ‘Laetitia’ plums stored under modified atmosphere

Strobilurin and boscalid in the quality of net melon fruits

Fungi Active Microbial Metabolism Detection of Rhizopus sp. and Aspergillus sp. Section Nigri on Strawberry Using a Set of Chemical Sensors Based on Carbon Nanostructures

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