Qualidade química e física de berinjelas submetidas a diferentes tratamentos pós-colheita

Moretti, Celso Luiz; Pineli, Lívia de Lacerda de Oliveira

doi:10.1590/s0101-20612005000200027

Cited by 7 publications

(3 citation statements)

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“…Similar results were reported by Kaynas et al (1995) and Moretti and Pineli (2005), who found increased soluble solids contents ranging from 4.2 to 5.4 °Brix in eggplants stored under refrigeration. 1 M1: 1.0%, 1.5%, 2.5%, and 3.5%; M2: 1.5%, 2.0%, 3.0%, and 4.0%; M3: 2.0%, 2.5%, 3.5%, and 4.5%; M4: 0%.…”

Section: Kg -1 ---------------------------------------supporting

confidence: 90%

Growth, yield, and postharvest quality in eggplant produced under different foliar fertilizer (Spirulina platensis) treatments

Dias

Rocha

Araújo

et al. 2016

SCA

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This study evaluated the growth, yield, and postharvest quality of eggplant grown under different foliar fertilizer treatments with Spirufert® (Spirulina platensis). The treatments consisted of four fertilizer concentrations applied at four phenological stages: M1 (10, 15, 25, and 35 g L -1 ), M2 (15, 20, 30, and 40 g L -1 ), M3 (20, 25, 35, and 45 g L -1 ), and M4 (control plants, water spraying only). For Postharvest experiments were conducted in a 4 x 5 factorial design corresponding to the four treatments in the field experiment and five storage times. Spirufert® applied at lower concentrations (M1) resulted in greater fruit yield without affecting the foliar concentrations of N, P, K, and Na. Higher fertilizer concentrations (M3) increased vegetative growth but reduced eggplant yield. Fruit color parameters and soluble solids contents were not affected by fertilizer application, but pulp firmness was more stable in M1 fruits stored for up to six days. Key words: Solanum melongena. Microalgae. Biofertilizer. Postharvest conservation. ResumoObjetivou-se avaliar o crescimento, a produção e a qualidade pós-colheita da berinjela em função de manejos (M) de aplicação foliar com Spirufert® (Spirulina platensis). Os manejos foram constituídos por quatro concentrações do produto, aplicadas em quatro fases fenológicas da cultura, sendo o M1 constituído por pulverizações nas concentrações de 10, 15, 25 e 35 g L -1 ; o M2 correspondeu às concentrações de 15, 20, 30 e 40 g L -1 ; o M3 por 20, 25, 35 e 45 e g L -1 e o M4 correspondeu à testemunha. Para o ensaio de pós-colheita, os tratamentos corresponderam a um esquema fatorial 4 x 5, correspondente aos quatro tratamentos originados do experimento de campo e cinco períodos de armazenamento. O Spirufert® aplicado em concentrações mais baixas (M1) proporciona maior produção de frutos, sem influenciar os teores foliares de N, P, K e Na da cultura. Concentrações mais elevadas do produto (M3) favorecem o desenvolvimento vegetativo da berinjela em detrimento da produção. O produto não afeta a cor do fruto nem seus sólidos solúveis, porém o manejo M1 proporciona maior estabilidade na firmeza dos frutos durante o seu armazenamento de até seis dias. Palavras-chave: Solanum melongena. Microalga. Biofertilizante. Conservação pós-colheita.

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Section: Kg -1 ---------------------------------------supporting

confidence: 90%

Growth, yield, and postharvest quality in eggplant produced under different foliar fertilizer (Spirulina platensis) treatments

Dias

Rocha

Araújo

et al. 2016

SCA

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“…4; 4.8 y 0.15 % respectivamente en berenjenas moradas de diferentes variedades, valores muy cercanos a los reportados en este estudio (Tabla 1). De esta manera la caracterización fisicoquímica de berenjena fucsia-morada y lila es similar a resultados obtenidos por otros autores (Muy et al 2002Brandão et al, 2003Moretti y Pineli, 2005;Prohens et al, 2007;Gajewski et al, 2009).…”

Section: Extracción De Antocianinas a Partir De Cáscara De Berenjenasunclassified

Optimización del Proceso de Extracción de Antocianinas y Evaluación de la Capacidad Antioxidante de Berenjena (Solana melonera L.)

Heras¹,

Alvis²,

Arrázola³

2013

Inf. tecnol.

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El objetivo de esta investigación fue optimizar el proceso de extracción de antocianinas obtenidas de berenjena (Solanum melongena L.) y evaluar su capacidad antioxidante. A extractos de piel y pulpa se le realizaron análisis fisicoquímicos, contenido en fenoles y antocianos. Para la optimización del proceso de extracción de las antocianinas se empleó la metodología de superficie de respuesta con tres factores: concentración de solvente etanol acidificado 1% ácido ortofosfórico (50 a 90% v/v), temperatura extracción (30 a 60°C) y tiempo extracción (4 a 12 horas). La evaluación de la capacidad antioxidante se realizó empleando el método ABTS (6-sulfonato-3-etilbenzotiazolina). El proceso de extracción de antocianinas de la cáscara sigue un modelo cuadrático, mientras que la capacidad antioxidante tuvo un comportamiento lineal. La optimización del modelo mostró que las condiciones de extracción con 50% de solvente acidificado, tiempo de proceso de 4 horas y temperatura de 30 °C presentó los mayores contenidos de antocianinas, alcanzando 62 mg/100g.

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“…It also seems to be a convenient alternative to delay physiological, biochemical and microbiological reduction processes (Arruda et al, 2011). The effect of low O 2 concentration and high CO 2 concentration to control enzymatic browning and make shelf life longer has been positively reported for several minimally processed fruits and vegetables (Rojas-Grau et al, 2009), including eggplants (Moretti & Pineli, 2005). According to the reports, 2% of O 2 is the critical concentration to possibly cause anaerobic respiration, considering that this limit depends on the product used.…”

Section: Introductionmentioning

confidence: 99%

The use of active modified atmosphere for the conservation of minimally processed eggplant

et al. 2018

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The aim of this work was to evaluate effects of different gas concentrations (O2 and CO2) on conservation of minimally processed eggplants. The eggplants were sanitized, processed and packed in nylon + transparent polyethylene. The vegetables were submitted to modified atmospheres (T1= atmospheric air; T2= vacuum; T3= 4% O2 and 5% CO2; T4= 4% O2 and 6% CO2; T5= 4% O2 and 7% CO2; T6= 4% O2 and 8% CO2). The minimally processed eggplants were kept at 5±1°C and 90±1% RH, for 10 days. After 0, 2, 4, 6, 8 and 10 days of storage, fresh weight loss, respiratory rate, color, soluble solids (SS), titratable acidity (TA), pH, SS/TA ratio, visual analysis and purchase intent were determined. We used completely randomized experimental design, in a factorial scheme 6x6 (atmosphere x days of conservation). The atmosphere with higher CO2 concentration (8%) reduced the respiratory rate more intensely. The minimally processed eggplant maintained at 4% O2 + 6% CO2 obtained better grades on the visual analysis and purchase intention, with 10-day storage period. The vacuum was not recommended to keep minimally processed eggplant refrigerated under the studied conditions.

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Qualidade química e física de berinjelas submetidas a diferentes tratamentos pós-colheita

Cited by 7 publications

References 0 publications

Growth, yield, and postharvest quality in eggplant produced under different foliar fertilizer (Spirulina platensis) treatments

Growth, yield, and postharvest quality in eggplant produced under different foliar fertilizer (Spirulina platensis) treatments

Optimización del Proceso de Extracción de Antocianinas y Evaluación de la Capacidad Antioxidante de Berenjena (Solana melonera L.)

The use of active modified atmosphere for the conservation of minimally processed eggplant

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