&lt;b&gt;Physicochemical characterization, antioxidant activity and total phenolic content in 'Gala' apples subjected to different UV-C radiation doses

Dias, Thaís Gabrielle; Boas, Ana Carolina Vilas; Junqueira, Maria Beatriz Affonso; Lima, Luiz Carlos de Oliveira

doi:10.4025/actasciagron.v39i1.30979

Cited by 2 publications

(2 citation statements)

References 13 publications

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“…The values of titratable acidity were also submitted to regression analysis where it was observed that in the control treatment the percentage of citric acid was around 0.5%, and when submitted to the concentration of 50ppm there was an increase, reaching values of 0.56% (Figure 1). This increase is due to the release of organic acids due to the increase of the metabolic activity and the conversion of sugars to acid (DIAS et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

Visual Quality and Physical-Chemical Characteristics in Potato Tubers Treated With Hydrogen Peroxide

Rodrigues¹,

Santos²,

Megguer³

et al. 2018

COLLOQ AGRARIAE

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Unconventional techniques such as the use of visible ultraviolet light (UV-C) and physical treatments have been used to combat post-harvest diseases. Attention has been focused on the use of hydrogen peroxide, but little is known about its effects on the control of bacteria causing soft rot. The objective of this study was to evaluate the incidence of soft rot and physical-chemical and visual characteristics in potato tubers (Solanum tuberosum L.) treated with hydrogen peroxide. The experiment was conducted following a completely randomized design in subdivide plots scheme with four treatments: 0, 50, 100 and 150ppm of hydrogen peroxide whit an inoculated plot and a non inoculated. The visual aspects were evaluated by for to the incidence of soft rot appearance of shoots. pH, titratable acidity (% citric acid), soluble solids content, pulp firmness and total sugar content were used to determine post-harvest quality. Hydrogen peroxide was not effective in controlling soft rot in potato tubers, but increased the metabolic activity of tubers leading to an increase in soluble solids content and reduced in titratable acidity.

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Section: Resultsmentioning

confidence: 99%

Visual Quality and Physical-Chemical Characteristics in Potato Tubers Treated With Hydrogen Peroxide

Rodrigues¹,

Santos²,

Megguer³

et al. 2018

COLLOQ AGRARIAE

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“…Several strategies have been the target of studies for the soft rot control in potatoes. These control methods range from the pre-planting stage to the selection of healthy seeds and the cleaning of the machinery to be used, as well as methods aimed at eliminating the pathogen in the cleaning phase of the harvested tuber (CZAJKOWSKI et al, 2011). Several methods, even with promising results in disease control, like the ultraviolet radiation, needs a high investment, besides the difficulty of being applied in large scale (USALL et al,2016;DIAS et al, 2017).…”

Section: Tratamento Hidrotérmico No Controle Da Podridão-mole Em Batatas E Suas Alterações Nas Características Pós-colheitamentioning

confidence: 99%

Hydrothermic treatment in the soft rot control in potatoes and their changes in the post-harvest characteristics

et al. 2019

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Several strategies have been studied to control soft rot in potatoes, but in many cases they are based on methods that, even though they present promising results, they require a high investment, besides the difficulty of being applied in large scales, which makes the use of hydrothermal treatment an interesting alternative. The aim of this study was to evaluate the influence of different immersion temperatures used in the hydrothermal treatment on the post-harvest quality of the treated tubers. The experiment was conducted as a completely randomized design with five immersion temperatures: control, 40, 50, 60 and 70 °C, and five storage periods: 0, 5, 10, 15 and 20 days. Post-harvest quality determination was performed by evaluating pulp firmness, pH, titratable acidity (% citric acid) and soluble solids content (° Brix) Throughout the storage period the tubers with symptoms of soft rot were counted and discarded. The immersion temperature caused changes in the parameters of pulp firmness, titratable acidity and soluble solids content. Tubers submitted to immersion temperature of 70 °C were all eliminated on the 5th day of evaluation. The immersion of potatoes at 40 °C was the most efficient in reducing the accurrance of soft rot, while maintaining the physical-chemical characteristics of the treated tubers during the storage period of 20 days.

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<b>Physicochemical characterization, antioxidant activity and total phenolic content in 'Gala' apples subjected to different UV-C radiation doses

Cited by 2 publications

References 13 publications

Visual Quality and Physical-Chemical Characteristics in Potato Tubers Treated With Hydrogen Peroxide

Visual Quality and Physical-Chemical Characteristics in Potato Tubers Treated With Hydrogen Peroxide

Hydrothermic treatment in the soft rot control in potatoes and their changes in the post-harvest characteristics

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