scholarly journals Physico-chemical and sensory evaluation of potato (Solanum tuberosum L.) after irradiation

2016 ◽  
Vol 88 (2) ◽  
pp. 941-950 ◽  
Author(s):  
IVANESA G.M. SOARES ◽  
EDVANE B. SILVA ◽  
ADEMIR J. AMARAL ◽  
ERILANE C.L. MACHADO ◽  
JOSENILDA M. SILVA
Keyword(s):  
Solanum Tuberosum ◽  
Solanum Tuberosum L ◽  
Potato Cultivar ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Maturation Stage ◽  
Flesh Color ◽  
C Protein ◽  
Loss Of Weight ◽  
Physico Chemical

ABSTRACT This work evaluated the effects of ionizing radiation on the physico-chemical and sensory characteristics of the potato cultivar Ágata (Solanum tuberosum L.), including budding and deterioration, with the end goal of increasing shelf life. For this, four groups of samples were harvested at the maturation stage. Three of them were separately exposed to a Co-60 source, receiving respective doses of 0.10, 0.15 and 2.00 kGy, while the non-irradiated group was kept as a control. All samples were stored for 35 days at 24 °C (± 2) and at 39% relative humidity. The following aspects were evaluated: budding, rot, loss of weight, texture, flesh color, moisture, external and internal appearance, aroma, soluble solids, titratable acidity, vitamin C, protein, starch and glucose. The results indicated that 0.15 kGy was the most effective dose to reduce sprouting and post-harvest losses, under the conditions studied.

scholarly journals Physico-chemical composition of native fruits of the Ceará coast at different development stages

2017 ◽  
Vol 21 (9) ◽  
pp. 640-644 ◽  
Author(s):  
Nigéria P. Gonçalves ◽  
Eliseu M. P. de Lucena ◽  
Oriel. H. Bonilla ◽  
Francisca J. C. Tavares
Keyword(s):  
Chemical Composition ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Maturation Stage ◽  
Total Soluble Solids ◽  
Development Stages ◽  
Randomized Design ◽  
Physico Chemical ◽  
Stage 4 ◽  
Total Titratable Acidity

ABSTRACT This study aimed to evaluate the physico-chemical composition of native fruits of the Ceará coast at different development stages. The fruits of ‘guajiru’, ‘manipuçá’, ‘murici-pitanga’ and ‘murta’ were collected during the year 2014, and the following evaluations were made: total soluble solids, total titratable acidity, pH, total soluble solids and titratable acidity ratio. A completely randomized design was used, with 5 or 6 treatments, depending on the maturation stage and 4 replicates. For total soluble solids, ‘murta’ obtained a minimum of 2.6 °Brix in stage 1 and ‘manipuçá’ obtained maximum of 24.53 °Brix in stage 5. For the total titratable acidity, ‘guajiru’ showed minimum of 0.09% in stages 3 and 4, and ‘murici-pitanga’ showed maximum of 3.29% in stage 6. ‘Murici-pitanga’ had minimum pH of 3.44 in stage 5 and ‘guajiru’, maximum pH of 5.9 in stage 2. For total soluble solids and titratable acidity ratio, ‘murici-pitanga’ exhibited a minimum of 3.25 in stages 1 and 3, and ‘guajiru’ showed maximum of 141.11 in stage 4. It was concluded that ‘guajiru’ and ‘manipuçá’ fruits reached physiological maturity in stage 3, whereas ‘murici-pitanga’ and ‘murta’ fruits reached in stage 4; thus, these are the ideal stages for fruit harvest.

scholarly journals COMPOSIÇÃO DA ACEROLA DE DIFERENTES GENÓTIPOS EM DUAS ÉPOCAS DE COLHEITA

Nativa ◽  
2018 ◽  
Vol 6 (1) ◽  
pp. 15 ◽  
Author(s):  
Maurício Dominguez Nasser ◽  
Flávia Aparecida de Carvalho Mariano-Nasser ◽  
Karina Aparecida Furlaneto ◽  
Juliana Arruda Ramos ◽  
Priscilla Kárim Caetano
Keyword(s):  
Titratable Acidity ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Maturation Stage ◽  
Randomized Design ◽  
Physico Chemical ◽  
Malpighia Emarginata ◽  
Chemical Attributes ◽  
Physical And Chemical ◽  
First Time

Os atributos físicos e químicos da acerola podem sem influenciados por vários fatores: genótipo, localização do pomar, tratos culturais empregados nas plantas, índice pluviométrico, irrigação, exposição à luz solar, estádio de maturação dos frutos e época de colheita. O presente trabalho avaliou características químicas e físico-químicas de frutos de diferentes genótipos de aceroleira em duas épocas de colheita. A primeira época no período de fevereiro a março de 2014, e a segunda época de dezembro de 2014 a janeiro de 2015. Os materiais genéticos avaliados foram Olivier, BRS 237 - Roxinha, BRS 236 - Cereja, BRS 238 - Frutacor, BRS 235 - Apodi, Waldy – CATI 30 e Okinawa. O delineamento utilizado foi o inteiramente casualizado (DIC) em esquema fatorial, com 7 cultivares em 2 épocas de colheita, totalizando 14 tratamentos, e a repetição sendo 500 g por amostra de frutos maduros para cada genótipo de aceroleira representado por oito plantas em fase de produção e com oito anos de idade. Avaliaram-se os seguintes atributos físico-químicos: pH e sólidos solúveis (°Brix), e químicos: ácido ascórbico, e acidez titulável (expressa em g de ácido cítrico 100 g-1 de polpa). Também foi determinada a relação °Brix / Acidez titulável. Nas duas épocas de colheita avaliadas, a composição da acerola é mais influenciada pelo genótipo que pelas condições climáticas de precipitação e temperatura do ambiente. Todos os clones de aceroleira atendem a legislação brasileira vigente quanto à qualidade de polpa de fruta de acerola.Palavra-chave: Malpighia emarginata Sessé e Mociño ex DC, qualidade, fruticultura tropical. COMPOSITION OF THE ACEROLA OF DIFFERENT GENOTYPES IN TWO SEASONS OF HARVEST ABSTRACT:The physical and chemical attributes of acerola can be influenced by several factors: genotype, orchard location, crop management, pluviometric index, irrigation, exposure to sunlight, fruit maturation stage and harvest season. The present work evaluated the chemical and physical-chemical characteristics of the acerola of different genotypes at two harvest seasons. The first time in the period from February to March 2014, and the second time from December 2014 to January 2015. The genetic materials evaluated were Olivier, BRS 237 - Roxinha, BRS 236 - Cherry, BRS 238 - Frutacor, BRS 235 - Apodi, Waldy - CATI 30 and Okinawa. The design was a completely randomized design in a factorial scheme, with 7 cultivars in 2 seasons of harvest, totaling 14 treatments, and the repetition being 500 g per sample of mature fruits for each genotype of acerola represented by eight plants in production and eight years of age. The following physico-chemical attributes were evaluated: pH and soluble solids (° Brix), and chemicals: ascorbic acid, and titratable acidity (expressed in g of citric acid 100 g-1 of pulp). The ratio ° Brix / Titratable acidity was also determined. In the two evaluated harvest periods, the composition of the acerola is more influenced by the genotype than by the climatic conditions of precipitation and temperature of the environment. All clones of acerola are in compliance with the Brazilian legislation in force regarding the quality of fruit pulp of acerola.Keywords: Malpighia emarginata Sessé e Mociño ex DC, quality, tropical fruticulture. DOI:

scholarly journals Physical-chemical and chemical characterization of Passiflora cincinnata Mast fruits conducted in vertical shoot positioned trellis and horizontal trellises system

2019 ◽  
Vol 41 (6) ◽  
Author(s):  
Ana Claudia Alves D’abadia ◽  
Ana Maria Costa ◽  
Fábio Gelape Faleiro ◽  
Juaci Vitória Malaquias ◽  
Francisco Pinheiro de Araújo
Keyword(s):  
Skin Color ◽  
Chemical Characterization ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Conduction System ◽  
Soluble Solids ◽  
Maturation Stage ◽  
Physico Chemical ◽  
Fruit Skin

Abstract Passiflora cincinnata Mast. or Caatinga passion fruit is widely cultivated in the northeastern semi-arid regions of Goiás, Minas Gerais, and Bahia. The system of cultivation and field management of the Passiflora species affects the physicochemical quality of its fruits. In this study, we evaluated the chemical and physico-chemical characteristics of the fruits of 2 progenies (CPEF2220 and CBAF2334) of P. cincinnata species using the vertical and horizontal trellis system. Fruits were collected from the plants at their physiological maturation stage and tested for the fruit skin color and texture and the pH, total soluble solids, titratable acidity, pulp acidity ratio, and the contents of flavonoids, anthocyanins, and polyphenols in the seedless fruit pulp. The experimental design was completely randomized in a 2 x 2 factorial scheme (progenies x conduction system) performed in 3 replications using 4 plants in each. The analysis of variance and the means were compared using the Tukey’s test at 5% probability. The results revealed that the CBAF2334 fruits presented with greener pigments and greater flavonoids. The fruits were characterized by their green color with some yellowish nuances and a low color saturation in both the progenies. The conduction system was not found to affect the physical and physicochemical characteristics as well as the anthocyanin and polyphenol contents of the studied species. The fruits of plants cultivated on vertical trellis presented with 56.73% more flavonoid content than those cultivated on horizontal trellis.

scholarly journals Critical points of industrial tomato from field to processing

2018 ◽  
Vol 36 (4) ◽  
pp. 521-525 ◽  
Author(s):  
Luis Eduardo de Moura ◽  
Adelmo Golynski
Keyword(s):  
Critical Points ◽  
Titratable Acidity ◽  
Raw Material ◽  
Fresh Mass ◽  
Soluble Solids ◽  
Physico Chemical ◽  
Efficient Communication ◽  
Production Stages ◽  
Material Temperature ◽  
Truck Arrival

ABSTRACT The authors evaluated critical points of production stages of the industrial tomato, through physical and physico-chemical analyzes of U2006 hybrid fruits in the harvest, 2016. Fruits were evaluated in relation to raw material, temperature, fresh mass, pH, soluble solids (°Brix), firmness, titratable acidity and extravasation of electrolytes. Samples were collected in six steps: manual, mechanized, truck, arrival at industry, unloading and selection mat in two periods, morning and afternoon, totalizing 60 fruits for each step, and four replications. Fruits which waited for more than 10 hours in the yard generated an increase in serious defects (%), loss of fresh mass, discount on the amount paid for the load. The most critical stages of the production process were identified when tomatoes arrived at the industry and their unloading, when the fruits presented fresh mass loss due to the high temperature. In addition, the authors highlight that a better organization in the arrivals at the industry as well as an efficient communication of crop restriction is crucial, since unscheduled stops increase waiting time, causing significant quality losses.

Physico-chemical evaluation of Apple (Malus domestica Borkh.) cultivars grown in mid hills of North India

2019 ◽  
Vol 3 (02) ◽  
pp. 176-184
Author(s):  
Amit Kotiyal ◽  
Siddharth Shankar Bhatt ◽  
Jitendra Kumar ◽  
Dinesh Chandra Dimri ◽  
Narender Singh Mehta
Keyword(s):  
Ascorbic Acid ◽  
Fruit Size ◽  
Chemical Properties ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
North India ◽  
Physico Chemical ◽  
Apple Cultivars

The objective of this study was to compare the physico-chemical properties of 10 apple cultivars grown in mid hills of India. Fruit weight, volume, size, total soluble solids (T.S.S.), total sugars, titratable acidity and ascorbic acid content were measured in the cultivars Aurora, Brookfield, Braeburn, Galaxy, Azetec, Scarlet Gala, Marini Red, Jonagold, Royal Gala and Royal Delicious. The results showed significant differences in physico-chemical attributes of apple cultivars. Among all the cultivars the maximum fruit size (50.66 mm length, 74.73 mm diameter) and fruit weight (170.12 g) were observed in cv. Royal Delicious, while the minimum fruit size (40.52 mm length, 53.03 mm diameter) and weight (110.97 g) were measured in Azetec and Aurora, respectively. The highest volume (196.79 ml) of fruit was registered in Royal Delicious in comparison to the minimum (125.75 ml) in Aurora. The maximum T.S.S. (14.27 °B) and acidity (0.717%) was noticed in Scarlet Gala and Marini Red, respectively. While the minimum T.S.S. and acidity was observed in Marini Red (11.20 °B) and Azetec (0.186%). The ascorbic acid varied from 6.07 mg/100 g in Royal Gala to 9.86 mg/100 g in Braeburn, whereas the total sugar ranged 11.36% in Royal Gala to 7.06% in Jonagold.

Development of a Potato Cultivar (Solanum tuberosum L.) Core Collection, a Valuable Tool to Prospect Genetic Variation for Novel Traits

2016 ◽  
Vol 59 (4) ◽  
pp. 329-343 ◽  
Author(s):  
Florence Esnault ◽  
Roland Pellé ◽  
Jean-Paul Dantec ◽  
Aurélie Bérard ◽  
Marie-Christine Le Paslier ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Solanum Tuberosum ◽  
Core Collection ◽  
Solanum Tuberosum L ◽  
Potato Cultivar ◽  
Novel Traits

scholarly journals Quality parameters of tomatoes submitted to different doses of gamma radiation

2018 ◽  
Vol 21 (0) ◽  
Author(s):  
Ana Carolina Loro ◽  
Victor Wilson Botteon ◽  
Marta Helena Fillet Spoto
Keyword(s):  
Ascorbic Acid ◽  
Gamma Radiation ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Maturation Stage ◽  
Long Life ◽  
Irradiation Process ◽  
Different Doses

Abstract Ionizing radiation can be used for different purposes in the food industry. In this study, the effect of irradiation doses (0, 0.5, 1.0 and 1.5 kGy) on the quality parameters of long life tomatoes (Lycopersicon esculentum Mill.), was evaluated during 4 storage periods (1, 7, 14 and 21 days). The different treatments were evaluated by analysing for colour, pH, total soluble solids (TSS), total titratable acidity (TTA), ratio (TSS/TTA), hardness, total lycopene and ascorbic acid contents, weight loss and maturation stage (O2 /CO2 ratio) for all the storage periods. The tomato samples were irradiated in a Co60 irradiator and maintained at 22 °C ± 1 °C. The quality of the tomato fruits was influenced by the gamma radiation basically by making the fruits softer and not degrading the ascorbic acid and lycopene contents at the doses evaluated. The irradiation process used in the doses evaluated was promising with respect to maintaining the quality parameters of long life tomatoes.

scholarly journals QUALIDADE DA BERINJELA IRRIGADA COM ÁGUAS SALOBRAS VIA GOTEJAMENTO CONTÍNUO E POR PULSOS

Irriga ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 1-13
Author(s):  
Lucas Farias Damasceno ◽  
Louise Rosa Monte Belo ◽  
Hans Raj Gheyi ◽  
Alide Mitsue Watanabe Cova ◽  
Geovani Soares de Lima ◽  
...  
Keyword(s):  
Brackish Water ◽  
Solanum Melongena ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Chemical Characteristics ◽  
Total Soluble Solids ◽  
Physico Chemical ◽  
Total Titratable Acidity ◽  
E Mail ◽  
Continuous Drip

QUALIDADE DA BERINJELA IRRIGADA COM ÁGUAS SALOBRAS VIA GOTEJAMENTO CONTÍNUO E POR PULSOS    LUCAS FARIAS DAMASCENO1; LOUISE ROSA MONTE BELO2; HANS RAJ GHEYI3; ALIDE MITSUE WATANABE COVA4; GEOVANI SOARES DE LIMA5 E LARA DE JESUS MARQUES6   1 Mestrando em Engenharia Agrícola da Universidade Federal do Recôncavo da Bahia, Rui Barbosa, 710, Centro, 45330-000, Cruz das Almas, Bahia, Brasil. E-mail: [email protected] 2 Engenheira Agrônoma, Universidade Federal do Recôncavo da Bahia, Rui Barbosa, 710, Centro, 45330-000, Cruz das Almas, Bahia, Brasil. E-mail: [email protected] 3 Professor Visitante da Universidade Federal do Recôncavo da Bahia, Rui Barbosa, 710, Centro, 45330-000, Cruz das Almas, Bahia, Brasil. E-mail: [email protected]. 4 Pós-Doutoranda no Programa de Pós-graduação de Engenharia Agrícola da Universidade Federal do Recôncavo da Bahia, Rui Barbosa, 710, Centro, 45330-000, Cruz das Almas, Bahia, Brasil. E-mail: [email protected] 5 Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal de Campina Grande, Aprígio Veloso, 882, Universitário, 58428-830, Campina Grande, Paraíba, Brasil. E-mail:[email protected] 6 Estudante de Agronomia da Universidade Federal do Recôncavo da Bahia, Rui Barbosa, 710, Centro, 45330-000, Cruz das Almas, Bahia, Brasil. E-mail: [email protected]     1 RESUMO   Devido suas propriedades medicinais e por ser um alimento rico em antioxidantes, o consumo da hortaliça berinjela vem crescendo. Durante o cultivo da berinjela, o manejo da água e do solo são fatores que podem influenciar a qualidade do fruto. Assim, objetivou-se com este trabalho analisar as características físico-químicas do fruto da berinjela ‘Florida Market’ irrigada com águas salobras por gotejamento contínuo e pulsos. O experimento foi conduzido em ambiente protegido com delineamento experimental em blocos casualizados, em esquema fatorial 2 x 4, com cinco repetições. Os tratamentos consistiram de duas formas de aplicação de água: gotejamento contínuo e pulsos, com quatro níveis de condutividade elétrica da água – CEa (0,3 (controle); 1,5; 3,0 e 4,5 dS m-1). Foram avaliadas as variáveis: massa fresca do fruto, teor de sólidos solúveis totais, pH da polpa, acidez total titulável e relação sólidos solúveis totais/acidez total titulável. Com o incremento da salinidade da água de irrigação o teor de sólidos solúveis totais (+3,60%) e acidez total titulável (+9,87%) aumentaram, enquanto a relação de sólidos solúveis totais/acidez total titulável (-4,53%) e a massa fresca do fruto diminuíram. A interação entre a salinidade e a forma de aplicação da água não influenciou as características físico-químicas do fruto.   Palavras-chave: Solanum melongena L., salinidade, sólidos solúveis, acidez titulável.     DAMASCENO, L. F.; BELO, L. R. M.; GHEYI, H. R.; COVA, A. M. W.; LIMA, G. S. de; MARQUES, L. de J. QUALITY OF EGGPLANT FRUIT IRRIGATED WITH BRACKISH WATER UNDER CONTINUOUS DRIP AND PULSE IRRIGATION     2 ABSTRACT   Due to its medicinal properties and to be a functional food rich in antioxidants, the eggplant vegetable consumption has been increasing. During eggplant cultivation, water and soil management are factors that can influence fruit quality. Therefore, this work aimed to analyze the physico-chemical characteristics of the fruit of the eggplant ‘Florida Market’ irrigated with brackish water under continuous drip and pulse irrigation. The experiment was conducted in protected environment in a randomized block design, adopting a 2 x 4 factorial scheme, with five replicates. The treatments consisted of a combination of two forms of application of brackish water: continuous drip and pulses, with four levels of water salinity - ECw (0.3 (control); 1.5; 3.0 and 4.5 dS m-1). The variables evaluated were fresh weight of the fruit, total soluble solids content, pH of the pulp, total titratable acidity and the ratio of total soluble solids/total titratable acidity. With the increase in salinity of irrigation water the content of total soluble solids (+3.60%) and total titratable acidity (+9.87%) increased, while the ratio of total soluble solids/total titratable acidity (-4.53%) and fresh fruit mass decreased. The interaction between salinity and the form of water application did not influence the physico-chemical characteristics of the fruit.   Keywords: Solanum melongena L., salinity, soluble solids, titratable acidity.

scholarly journals The Influence of Aminoethoxyvinylglycine and Ethephon on Objective and Sensory Quality of 'Delicious' Apples and Apple Juice at Harvest and after Storage

HortScience ◽  
2005 ◽  
Vol 40 (7) ◽  
pp. 2102-2108 ◽  
Author(s):  
S.R. Drake ◽  
T.A. Eisele ◽  
M.A. Drake ◽  
D.C. Elfving ◽  
S.L. Drake ◽  
...  
Keyword(s):  
Apple Juice ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Flesh Color ◽  
Ethylene Concentration ◽  
Long Term Storage ◽  
Solids Concentration ◽  
Peel Color ◽  
Sensory Preference ◽  
Atmosphere Storage

This study was conducted over three crop seasons using 'Delicious' (Scarletspur strain) apple trees on MM.111 rootstock. The bioregulators aminoethoxyvinylglycine (AVG) and ethephon (ETH) were applied alone or in combinations at various time intervals before harvest. Fruit response to bioregulators was evaluated at harvest and after storage. AVG applied 4 weeks before first harvest retarded starch loss at harvest, retained greater firmness, and reduced internal ethylene concentration and watercore of fruit at harvest and after both regular and controlled atmosphere storage. AVG did not influence peel color (hue values), but the flesh color of treated apples was more green. AVG in all instances tended to reduce the sensory scores for apples and apple juice. In contrast, ETH enhanced starch hydrolysis, flesh color development (green to more yellow), and soluble solids concentration while reducing titratable acidity levels. ETH had no influence on fruit firmness at harvest, but reduced firmness levels after storage in an inverse relationship to the concentration applied. Sensory values for whole apples were not influenced by ETH treatment, but ETH improved sensory preference for apple juice, particularly at early harvest. Applying AVG before ETH enhanced soluble solids and sensory scores for both fruit and juice. Treating with AVG followed by ETH at 150 mg·L–1 permitted the maintenance of satisfactory firmness values (>53.4 N) after long-term storage along with better quality and sensory perceptions. Using specific combinations of both AVG and ETH permitted ETH-mediated improvements in objective and perceived fruit quality to be obtained without the losses in flesh firmness and storability due to uncontrolled ethylene evolution and ripening typically observed when ETH is applied alone preharvest.

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