scholarly journals Post-harvest storage of ‘Paluma’ guavas produced by plants fertirrigated with nitrogen and biofertilizer

2020 ◽  
Vol 11 ◽  
pp. e3221
Author(s):  
Elisson Alves Santana ◽  
Deisiele Diniz Lima ◽  
Clériton Souza ◽  
Acácio Figueiredo Neto ◽  
Ítalo Herbert Lucena Cavalcante ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Mineral Fertilizer ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Chemical Quality ◽  
Mineral Fertilization ◽  
Post Harvest ◽  
Guava Fruit ◽  
Physical Chemical

The association between mineral fertilizer and biofertilizers can contribute to guavas quality. An experiment was carried out in order to assess, over the days, 'Paluma' guavas physical-chemical quality in function of nitrogen fertilizer and biofertilizer doses. It was adopted a randomized blocks with treatments distributed in a factorial 5 x 2 x 5 referring to evaluation days post-harvest (0, 3, 6, 9 and 12), nitrogen fertilization (50 and 100% culture recommendation) and application of bovine biofertilizer doses by fertigation (0.0, 2.5, 5.0, 7.5 and 10.0%). The physical-chemical quality of 'Paluma' guava fruit was influenced by the association between liquid bovine biofertilizer and nitrogen fertilization. This combination increased soluble solids, titratable acidity, ratio, vitamin C, pH, firmness and loss of fresh mass, but did not affect the pulp percentage. The bovine biofertilizer, together with mineral fertilization, is important to increase the post-harvest quality of 'Paluma' guava.

scholarly journals Post harvest evaluation of physical-chemical parameters of mechanically damaged Tahiti acid limes

2010 ◽  
Vol 1 (2) ◽  
pp. 79
Author(s):  
Michel Shoiti Tamura ◽  
Roselene Ferreira Oliveira ◽  
Simone Correia Molina ◽  
Edmar Clemente
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Chemical Parameters ◽  
Post Harvest ◽  
Physical Chemical ◽  
Randomized Design ◽  
Significant Difference ◽  
Completely Randomized Design ◽  
Solids Content

<p>From harvest to consumption, fruit and vegetables suffer a series of mechanical damages which, depending on their sensitiveness, may cause damages that put their final quality at risk. This work had as its objective evaluate the post harvest quality of mechanically damaged &lsquo;Tahity&rsquo; acid limes. The experiment was carried out in a completely randomized design, with 3 repetitions and 7 fruits per treatment, mechanical damages were then evaluated by cutting and impacting in comparison to healthy fruits (control), and maintained for periods of 0, 3. 6, 9, 12, 15 and 18 days, thus obtaining a 3 x 7 factorial experiment. Analyses were made throughout the 18 days, so as to determine the total soluble solids content (expressed in &deg;Brix); titratable acidity (in g of citric acid. 100mL<sup>-1</sup>); ratio (relationsoluble solids and titratable acidity); vitamin C (expressed in mg of ascorbic acid 100mL<sup>-1</sup>) and pH. The results obtained showed that there was significant difference in the chemical parameters evaluated, mainly those submitted to damaging treatment.</p><p>&nbsp;</p><p>DOI: http://dx.doi.org/10.14685/rebrapa.v1i2.20</p>

scholarly journals Nitrogen Fertilization and Liming Improves Growth, Production, Gas Exchange and Post-Harvest Quality of Yellow Flower Jambu

2020 ◽  
Vol 8 (3) ◽  
pp. 756
Author(s):  
Vivian Christine Nascimento Costa ◽  
Mário Lopes da Silva Júnior ◽  
Italo Marlone Gomes Sampaio ◽  
Ricardo Falesi Palha de Moraes Bittencourt ◽  
Stefany Priscila Reis Figueiredo ◽  
...  
Keyword(s):  
Gas Exchange ◽  
Nitrogen Fertilization ◽  
Physiological Responses ◽  
Biomass Accumulation ◽  
Titratable Acidity ◽  
Production Performance ◽  
Soluble Solids ◽  
Post Harvest ◽  
Growth Production

Jambu is a vegetable, widely consumed in the Brazilian North Region, both in typical foods and medicinal herb. Despite its versatility, there are uncountable challenges in relation to its cultivation, especially with regard to the availability of information on nutritional management, such as the lack of data on the effect of liming associated with the supply of nitrogen (N) on the production performance of the crop. Thus, the effect of nitrogen fertilization and liming on growth, production, physiological responses and post-harvest quality of the yellow-flowered variety jambu was evaluated. The experimental design was randomized in factorial blocks (6 x 2), with five repetitions. The treatments consisted in the combination of six doses of N (0; 60; 90; 120; 150 and 180 kg ha-1) with and without liming application (0 and 70% V). The variables of growth, production, gas exchange and post-harvest quality of jambu were evaluated. Standardly, there was interaction between N-dose and liming factors for most of the analyzed variables, except for titratable acidity and total soluble solids and titratable acidity ratio. In general, the increasing of N doses combined with liming positively affected growth, production, physiological responses and post-harvest quality, and it was observed that in the 170 kg ha-1 dose of N higher response was obtained in the biomass accumulation of the aerial part and in the 180 kg ha-1 dose of N maximum production of inflorescences. Therefore, the use of correctives associated with nitrogen fertilization is recommended to obtain more significant production and quality of jambu.

ALTERAÇÕES FÍSICAS DE CAQUIS ‘KYOTO’ SUBMETIDOS À APLICAÇÃO DE 1-METILCICLOPROPENO

2017 ◽  
Vol 32 (3) ◽  
pp. 288
Author(s):  
Nathalie Cardoso Cábia ◽  
Rogério Lopes Vieites
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Starch Degradation ◽  
Diospyros Kaki ◽  
Chemical Quality ◽  
Titrable Acidity ◽  
Physical Chemical ◽  
Maturation Index ◽  
Index Ratio

O presente trabalho teve como objetivo avaliar a qualidade físico-química de caquis ‘Kyoto’ tratados com 1-metilciclopropeno (1-MCP). Os frutos, após a colheita, foram selecionados, higienizados e expostos a diferentes concentrações de 1-MCP (0 ppb, 500 ppb, 1000 ppb e 1500 ppb) e após o procedimento foram armazenados sob refrigeração a 0 ± 0,5°C e 90 ± 5% de UR. Foram realizadas análises de taxa respiratória, perda de massa fresca, acidez titulável, potencial hidrogeniônico (pH), sólidos solúveis e índice de maturação (“Ratio”). As análises foram realizadas nos frutos a cada 7 dias, ao longo de 35 dias de armazenamento refrigerado. O delineamento utilizado foi inteiramente casualizado, com 3 repetições por tratamento, utilizando-se o teste de Tuckey a 5% de probabilidade. Nas condições em que o trabalho foi realizado, pode-se concluir que as doses estudadas de 1-MCP não se apresentaram eficientes no controle do amadurecimento dos caquis ‘Kyotos’ durante os 35 dias de armazenamento, porém os frutos tratados com 1500 ppb de 1-MCP apresentaram controle da acidez titulável e de sólidos solúveis, indicando que afetou a taxa de degradação do amido; e a dose de 1000 ppb se apresentou mais eficiente na manutenção da firmeza.PALAVRAS-CHAVES: Diospyros kaki L., qualidade, inibição do etileno, pós-colheita. EFFECTS OF 1-METHYLCYCLOPROPENE APLICATION ON ‘KYOTO’ PERSIMMON PHYSICAL CHARACTERISTICSABSTRACT: The presente work aimed to evaluate the physical-chemical quality of ‘Kyoto’ persimmons treated with 1-methylcyclopropene (1-MCP). The fruits, after harvest, were selected, Satinized and exposed to different concentrations of 1-MCP (0 ppb, 500 ppb, 1000 ppb and 1500 ppb) and then were stored under refrigeration at 0 ± 0,5°C and 90 ± 5% RH. Respiratory rate, fresh mass loss, titrable acidity, hydrogen ionic potential (pH), soluble solids and maturation index (“Ratio”) were performed. The analyzes were carried out every 7 days, during 35 days of refrigeted storage. The experiment design was completely randomized, with 3 replicates per treatment, using the Tuckey test at 5% propability. In the conditions the work was carried out, it can be concluded that the studied doses of 1-MCP were not, efficient in controlling the ripening of ‘Kyotos’ persimmons during the 35 days of storage however the fruits treated with 1500 ppb of 1-MCP showed control of titratable acidity and soluble solids, indicating that it affected the rate of starch degradation; and the 1000 ppb dose was more efficient in maintaining firmness.KEYWORDS: Diospyros kaki L., quality, ethylene inhibition, post-harvest. 

scholarly journals Ethylene absorber (KMnO4) in postharvest quality of pinha (Anona squamosa L.)

2019 ◽  
pp. 605
Author(s):  
Alex Guimarães Sanches ◽  
Maryelle Barros Da Silva ◽  
Elaine Gleice Silva Moreira ◽  
Edmarcos Xavier Dos Santos ◽  
Keren Railka Paiva Menezes ◽  
...  
Keyword(s):  
Shelf Life ◽  
Starch Content ◽  
Storage Period ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Chemical Quality ◽  
Visual Appearance ◽  
Physical Chemical

The ripening pattern of the climacteric type of the pinha (Anona squamosa L.) limits its shelf life at room temperature, in addition, storage at low temperatures develops cold sores on the fruit. Thus, the association of conservation technologies is fundamental to reduce the losses in the post-harvest of this fruit, so it was aimed to evaluate sachets impregnated with potassium permanganate (KMnO4) associated with refrigeration in the control of ripening and preservation of quality. For this, pinhas were harvested at physiological maturity, packed in polystyrene styrofoam trays coated with PVC film with and without the presence of sachets containing 3 g of KMnO4 and stored at 13 ºC for 20 days. Every five days the fruit quality was evaluated as: weight loss, cracking index, firmness, external appearance, starch content, soluble solids, titratable acidity, pH, ratio SS/TA, coloring (Hue, Chroma and Luminosity) and cold damage. The absorption of ethylene by the KMnO4 sachet inside the packages preserved significantly (p<0.05) the physical-chemical quality and the visual appearance of the fruits but did not influence the coloration (chroma and luminosity) and incidence of damage by cold in relation to its control at the end of the storage period. The packing of pinhas containing 3 g of KMnO4 is an alternative to delay ripening, prolong the shelf life without compromising the physical-chemical quality of the fruits.

scholarly journals Influence of application of nitrogen doses on the post-harvest quality of cucumber

2021 ◽  
pp. 343-347
Author(s):  
Adriane Cristina Pereira ◽  
Danielle Godinho de Araújo Perfeito ◽  
Gabriel Pereira de Souza ◽  
Natália Arruda ◽  
Cleiton Gredson Sabin Benett ◽  
...  
Keyword(s):  
Soluble Solids ◽  
Physical Parameters ◽  
Cucumis Sativus L ◽  
Fresh Matter ◽  
F1 Hybrid ◽  
Post Harvest ◽  
Physical Chemical ◽  
Federal Institute ◽  
Different Doses

The conditions of cultivation and the management of fertilization influence the productivity and the post-harvest quality of cucumbers in an expressive way. In this sense, the aim of this study is to evaluate the physical, chemical and sensorial post-harvest quality of cucumbers for canning purposes submitted to different doses of nitrogen fertilization. The experiment was carried out in a greenhouse at the Goiano Federal Institute (IF Goiano), campus Urutaí and After harvest, the material was sent to the food technology laboratory located in the campus. The soil of the area is classified as Red Latosol according he cucumber cultivar used was the Cucumis sativus L. Kybria F1 hybrid, most suitable for the processing of canned foods. The experimental design was randomized blocks and five treatments (nitrogen doses 0, 50, 100, 150 and 200 kg ha-1), and four replications. The physical parameters fruit length and diameter, fruit fresh matter, production per plant, titratable acidity (TA), pH, soluble solids (SS), moisture, ash content, and SS/TA ratio were evaluated. A sensory analysis was performed using acceptance and ordering-preference tests, in addition to an instrumental evaluation of texture. The application of different doses of nitrogen to cucumber in a protected environment influenced the production per plant and the physical-chemical characteristics of the fruits. However, the sensory quality was not affected. The doses 100 and 150 kg ha-1 of nitrogen is recommended for the production of canned cucumber

scholarly journals Post-harvest quality of Campomanesia adamantium (Cambess.) O. Berg. in function of storage temperature

2020 ◽  
Vol 43 ◽  
pp. e48979
Author(s):  
Marília Assis do Santos ◽  
Alan Carlos Costa ◽  
Clarice Aparecida Megguer ◽  
Júlien da Silva Lima ◽  
Yasmin Giovanna Santos Carvalho ◽  
...  
Keyword(s):  
Visual Analysis ◽  
Storage Temperature ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Maturity Stage ◽  
Post Harvest ◽  
Fruit Species ◽  
Randomized Design ◽  
Soluble Solid

Brazil has a large variety of native and exotic fruit species, including the gabiroba, which can be sources of income for the population. The objective of this study was to evaluate the post-harvest behavior of gabiroba fruit by maturity stage and storage temperature. The fruits were divided into two lots and stored at temperatures of 6, 12, 24 and 30°C. The first batch was used for the physical and chemical analysis of acidity, soluble solids, firmness, percentage of green color, and visual analysis; this batch was composed of green and yellow-green fruit. The second lot was intended for breath analysis, composed of green, yellow-green, and yellow fruits. The experiment was conducted in a completely randomized design with five replications. Data were analyzed using descriptive statistics. Considering the evaluated characteristics, the gabiroba soluble solid/titratable acidity ratio values should be approximately 4.0 for the fruits to be considered acceptable for consumption. For the preservation of the post-harvest quality of gabiroba, it is indicated that the harvest is carried out at the green stage of maturation and that they are stored at a temperature of 6°C. The highest respiratory rates were observed in fruits harvested at the yellow stage, not being recommended its storage.

scholarly journals Strobilurin and boscalid in the quality of net melon fruits

2017 ◽  
Vol 38 (2) ◽  
pp. 543 ◽  
Author(s):  
Ana Claudia Macedo ◽  
Amanda Cristina Esteves Amaro ◽  
Anamaria Ribeiro Pereira Ramos ◽  
Elizabeth Orika Ono ◽  
João Domingos Rodrigues
Keyword(s):  
Cucumis Melo ◽  
Titratable Acidity ◽  
High Ratio ◽  
Soluble Solids ◽  
Active Principle ◽  
Physiological Effects ◽  
Physical Chemical ◽  
Hormonal Balance ◽  
Fruit Mass

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.

scholarly journals Silicon Potential as Attenuator of Salinity Effects on Growth and Post-harvest Quality of Lettuce

2018 ◽  
Vol 10 (7) ◽  
pp. 455
Author(s):  
Hozano De Souza Lemos Neto ◽  
Marcelo De Almeida Guimarães ◽  
Rosilene Oliveira Mesquita ◽  
Italo Marlone Gomes Sampaio ◽  
Ana Régia Alves de Araújo Hendges ◽  
...  
Keyword(s):  
Plant Growth ◽  
Titratable Acidity ◽  
Dry Mass ◽  
Soluble Solids ◽  
Saline Stress ◽  
Post Harvest ◽  
Randomized Design ◽  
Salinity Levels ◽  
Completely Randomized Design

Silicon (Si) is a mineral element that provides many benefits to plants and may also assist in tolerance to abiotic stresses such as salinity. The aim of the study was to evaluate the use of Si as a possible attenuator of the deleterious effects of salinity on growth and post-harvest of lettuce. A completely randomized design with four replicates was performed in a 3 × 2 factorial, consisting of three salinity levels (1.65, 3.65, 7.65 dS m-1) and two levels of silicon (0.0 and 2.0 mM). Salinity reduced all variables related to plant growth. For shoot fresh and dry mass, it was observed that NaCl caused a reduction of 79.80 and 80%, respectively, in comparison to the control. However, parameters related to post-harvest such as titratable acidity, soluble solids and vitamin C increased with salinity. Although not effective in reducing saline stress on plant growth, Si provided improvements in the variables related to lettuce post-harvest. Salinity significantly reduced plant growth in the presence and absence of Si, but provided better post-harvest quality with Si.

Refrigerated storage of fresh-cut marolo (Annona crassiflora mart.)

2020 ◽  
Vol 10 (2) ◽  
pp. 44-54
Author(s):  
Flávia Della Lucia ◽  
Eric Batista Ferreira ◽  
Sandra Maria Oliveira Morais Veiga ◽  
Luciana Azevedo ◽  
Marcela Aparecida Miranda Moreira ◽  
...  
Keyword(s):  
Storage Time ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Physical Chemical ◽  
Significant Difference ◽  
Thermotolerant Coliforms ◽  
Fresh Cut ◽  
Annona Crassiflora ◽  
Storage Temperatures

Marolo is a fruit typical of the Brazilian Savanna that is highly appreciated for its exotic flavour, nutritional value and sensory attributes. This study aimed to assess the quality of fresh-cut marolo by checking for possible changes in physical, chemical, microbiological and sensorial characteristics during cold storage (12 days at 0°C, 5°C and 10°C). Firmness varied based on storage time; the fruit softened on the 8th day and then increased in hardness until the end of the study. The lowest storage temperatures reduced the darkening rate of this product. No variations in the levels of soluble solids (12.7 to 14.6°B) or total phenolics (741.06 to 1295.21 mg. GAE.100g-1) were observed. Fruits stored at 10 °C showed an increase in titratable acidity after the 5th day and an increase in pH on the 10th and 12th days. Increases in the soluble pectin (156 to 265.73 mg.100g-1) and total pectins (>1.000 mg.100g-1) were noted. No significant difference was observed in the count of the total and thermotolerant coliforms, and the growth of filamentous fungi and yeasts decreased after storage at 0°C and 5°C after the 5th day. Storage at 5 °C for 5 days was found to be the most efficient set of conditions for maintaining the physical, chemical, microbiological and sensory characteristics of marolo.

scholarly journals Quality of Italian tomatoes grown with different forms of calcium application

2020 ◽  
Vol 9 (12) ◽  
pp. e10191210837
Author(s):  
Isa Gabriela Vieira de Andrade ◽  
Gilmário Noberto de Souza ◽  
Eduardo Santana Aires ◽  
Ítala Laiane Silva Gomes ◽  
Ruy de Carvalho Rocha ◽  
...  
Keyword(s):  
Block Design ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Fruit Firmness ◽  
Post Harvest ◽  
Randomized Block Design ◽  
Randomized Design ◽  
Tree Fruits ◽  
Fruit Mass

Tomato is one of the most consumed vegetables in the world. This work aimed to evaluate post-harvest quality of Italian Saladete tomatoes grown in a protected environment, with different ways of calcium application, in the Middle São Francisco Valley. Consisting of five Italian tomato hybrids (Anjico, Gabrielle, Liberty, Ty 2006 and Shanty), and three different ways of calcium application (T0 without application of calcium; T1 application of calcium in the opening flower, and T2 weekly application of calcium in the fruit).  Poductivity, average fruit mass, incidence of apical rot, fruit firmness, soluble solids (SS), titratable acidity (AT), and pH, were analized. The experimental design used was a completely randomized block design in a factorial scheme (five cultivars x three ways of calcium application), with three repetition and using two central plants as useful plot for analysis, except for fruit firmness that was carried out in a completely randomized design, using tree fruits per analysis. According to the results obtained, hybrids of Italian saladete tomatoes behaved in a satisfactory manner, therefore it is recommended to cultivate hybrids of Italian saladete tomatoes in the Middle São Francisco Valley, mainly hybrid Anjico. Calcium application way did not interfere with post-harvest attributes.

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