scholarly journals Pre-harvest application of calcium chloride and chitosan on fruit quality and storability of ‘Early Swelling’ peach during cold storage

2017 ◽  
Vol 41 (2) ◽  
pp. 220-231 ◽  
Author(s):  
Ahmed Abdel Nabi Abdel Gayed ◽  
Samar Abdeltawab Mohamed Ahmed Shaarawi ◽  
Mohamed Abdelkader Elkhishen ◽  
Nabil Raafat Mohamed Elsherbini
Keyword(s):  
Calcium Chloride ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Maturity Stage ◽  
Great Relevance ◽  
Peach Trees ◽  
Chloride Treatment ◽  
Physical And Chemical

ABSTRACT Studies related with the storage of peach fruits have received great relevance in Egypt. In this study, the effect of pre-harvest sprays of calcium chloride and chitosan, separately and in combination, on quality attributes and storability of peach fruits stored at 0±1 °C was studied. ‘Early Swelling’ peach trees were sprayed twice with 1% or 2% calcium chloride. The first spraying was at pea stage, while the second one was performed at 10 days before harvesting. Chitosan sprays were performed at 0.5 or 1%, alone or in combination with 1 and 2% calcium chloride, at 10 days before harvesting. Untreated trees served as control. Fruits were harvested at maturity stage, then packaged and stored at 0±1 °C and 85-90% of relative humidity. Fruit physical and chemical properties were evaluated at 7-day intervals. Results showed that pre-harvest application with 2% CaCl2+1% chitosan was most effective in minimizing weight loss (%) and decay (%), as well as in maintaining maximum firmness and lengthening shelf life. Fruit color was not affected by any of the treatments, while untreated fruits and calcium chloride treatment alone, at both applied concentrations, maintained higher total soluble solids (TSS, %), total phenolic content, and lower titratable acidity percentage.

scholarly journals Quality of dried banana produced from three cultivars 'Prata-Anã', 'FHIA-18'and 'BRS Platina' under different irrigation levels

2019 ◽  
Vol 13 ((03) 2019) ◽  
pp. 340-347
Author(s):  
Maristella Martineli ◽  
Kennia Karolline Gonçalves Pereira ◽  
João Rafael Prudêncio dos Santos ◽  
Ariane Castricini ◽  
Polyanna Mara de Oliveira ◽  
...  
Keyword(s):  
Purchase Intention ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Maturity Stage ◽  
Hot Air ◽  
Forced Air ◽  
Semi Arid Region ◽  
Physical And Chemical ◽  
Irrigation Levels

This study aimed to evaluate the influence of different levels of irrigation on the quality parameters involved in the dried-bananas production from 3 different cultivars. The experimental design was a completely randomized factorial 3 x 3, with three genotypes of bananas (Prata-Anã, FHIA-18 and BRS Platina) produced in the semi-arid region of Minas Gerais.) and three irrigation levels (50, 75 and 100% of crop evapotranspiration - ETC), with three replications. For the processing purpose, the fruits were selected at the maturity stage 6. Then they sanitized in hypochlorite of sodium solution at 100 mg L-1, peeled and dehydrated through the drying convective method with hot air, in dryer with forced air, in dryer with forced air circulation at 65ºC for 24 hours. The dried bananas were evaluated according to the following physical and chemical aspects: moisture, length, diameter, firmness, color (brightness, chroma and ºHue), soluble solids and titratable acidity, and sensory characteristics: purchase intention and acceptance. The humidity, length, diameter, firmness, color and acidity of dried bananas were influenced by the different studied irrigation levels. In the sensory evaluation, the best result regarding appearance, color, texture and flavor requirements was observed in banana processed from 'Prata-Anã' irrigated with the total level of water (100%). The dried banana processed from 'BRS Platina' was the least accepted in the sensory tests.

scholarly journals Ripe Ora-pro-nobis (Pereskia aculeata miller) fruits express high contents of bioactive compounds and antioxidant capacity

2018 ◽  
Vol 40 (3) ◽  
Author(s):  
Aline Priscilla Gomes da Silva ◽  
Poliana Cristina Spricigo ◽  
Thais Pádua de Freitas ◽  
Thiago Machado da Silva Acioly ◽  
Severino Matias de Alencar ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Bioactive Compounds ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Total Phenolic ◽  
Maturity Stage ◽  
Total Phenolic Compounds ◽  
Total Carotenoids ◽  
Significant Difference

Abstract Pereskia aculeata Miller is a native cactaceae found from the Northeast to the South of Brazil. This plant is recognized by the high nutritional value of their leaves, which are the most used in cooking and folk medicine. However, studies on the chemical characteristics and antioxidant capacity of the ora-pro-nobis fruits are scarce. Therefore, the aim of this study was to determine the best harvest point of the ora-pro-nobis fruits to optimize the content of bioactive compounds and their antioxidant capacity. The fruits were manually harvested, defined by their peel colors in three maturity stages: unripe (green), intermediate (yellowish green), and ripe (yellow) stages. The following attributes were evaluated: soluble solids (SS), titratable acidity (TA), SS/TA ratio, pH, and content of bioactive compounds, such as total chlorophylls, carotenoids, yellow flavonoids, total phenolic compounds, and antioxidant capacity. There was a decrease in the content of chlorophyll followed by an increase in the of total carotenoids and yellow flavonoids, due to the maturity stage. For the total phenolic compounds, it was not observed significant difference between the stages. The antioxidant capacity was quantified by the ORAC method in lyophilized pulp in the unripe (1.95 mmol 100 g-1 trolox) and ripe (3.85 mmol 100 g-1 trolox) stages. The lowest contents were observed in the intermediate (0.80 mmol 100 g-1 trolox in lyophilized pulp) stage. The maturity stage significantly influenced the bioactive compounds of ora-pro-nobis, which presented higher values of total carotenoids, yellow flavonoids, and antioxidant capacity in ripe fruits.

scholarly journals Influence of maturity stage on fruit longevity of cherry tomatoes stored at ambient and controlled temperature

2016 ◽  
Vol 37 (6) ◽  
pp. 4027
Author(s):  
Cristiana Maia de Oliveira ◽  
Leandro Martins Ferreira ◽  
Margarida Gorete Ferreira do Carmo ◽  
Regina Celi Cavestre Coneglian
Keyword(s):  
Ambient Temperature ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Maturity Stage ◽  
Key Factors ◽  
Maturity Stages ◽  
Randomized Design ◽  
Fruit Maturity ◽  
Physical And Chemical ◽  
Cherry Tomatoes

Fruit maturity stage has direct influence on the post-harvest life and consumer quality. Therefore, the understanding of the maturation process and its quality characteristics for storage are key factors for commercialization. In face of the foregoing, this study aimed to determine shelf life and changes in physical and chemical indexes of cherry tomatoes (Perinha Água Branca (PAB) and Mascot), assessing fruit harvested at four maturity stages and stored at ambient and controlled temperatures. For this, it was used fruit at turning, pink, red and ripe maturity stages, submitted to ambient (25 ± 2 °C) and controlled (12 °C and 90% RH) temperature, and assessed over time the indexes of fresh mass loss, titratable acidity, pH, soluble solids and ascorbic acid. The experimental design was completely randomized design in a factorial scheme of 2×4×7 for ambient temperature and 2×4×8 for controlled temperature. At ambient temperature, a longevity of up to 20 days was observed for PAB and Mascot fruit harvested at turning and pink maturity stages. When harvested at red and ripe stages, the longevity was of 15 days for PAB fruit and of 15 and 11 days, respectively, for Mascot fruit. At controlled temperature, PAB fruit showed longevity of 24 days when harvested at turning and pink stages and of 20 and 7 days, respectively, when harvested at red and ripe stages. A longevity of up to 27 days was observed for Mascot fruit harvested at turning stage and of 24 days for the other stages. The fruit harvested at turning and pink maturity stages, associated with storage under controlled conditions, presented higher longevity and maintenance of physical and chemical indexes of quality.

scholarly journals Blueberry jam: sensorial analyzes and effect of storage on physical and chemical properties.

2014 ◽  
Vol 5 (1) ◽  
pp. 19
Author(s):  
Daniela Helena Pelegrine Guimarães ◽  
Gisele Leticia Alves ◽  
Amanda Faria Querido
Keyword(s):  
Water Activity ◽  
Reducing Sugars ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Fruit Skin ◽  
Sensorial Attributes ◽  
Solids Content ◽  
Physical And Chemical ◽  
And Chemical Properties

<p>The proposal of the present research includes eight Blueberry jam formulations, from Rabbiteye species (Climax and Powder Blue varieties). For gelling, four formularizations were used: synthetic ATM pectin (F1), pectin obtained from passion fruit skin extraction (F2), synthetic BTM pectin (F3), and synthetic BTM pectin mixed with gums mixture (F4). Product Sensorial tests were performed and sensorial attributes evaluated were flavor, color, texture and appearance. According with sensorial tests and the Anova results, it could be concluded that the two more accepted formularizations were: F2 and F4 (For Climax variety) and F1 e F4 (for Powder Blue variety). Therefore, these formulations were evaluated for pH, total soluble solids, titratable acidity, water activity, total and reducing sugars, total and anthocyanins, from the first day of storage and after 30, 90 and 120 days to analyze the storage effect on jam characteristics. Jam processing reduces anthocyanins content (about 57% for conventional formulations and 35% for light jam); however, the jam may still be considered anthocyanins source, owing to the high content even after processing. After 40 storage days a significant decrease on jam anthocyanin levels was observed, except the products with higher sugar contents. Comparing the anthocyanin levels at time zero and after 120 days of storage, it appears that the decrease in pigment concentration was higher in the climax of fruit variety (approximately 44%). After 30 days of storage, the percentage of acidity, pH, water activity, moisture and soluble solids content remained constant.</p><p>&nbsp;</p><p>DOI: 10.14685/rebrapa.v5i1.150</p>

scholarly journals Physical and Chemical Properties of Some European Plum Cultivars (Prunus domestica L.)

2013 ◽  
Vol 41 (2) ◽  
pp. 499 ◽  
Author(s):  
Mira Elena IONICA ◽  
Violeta NOUR ◽  
Ion TRANDAFIR ◽  
Sina COSMULESCU ◽  
Mihai BOTU
Keyword(s):  
Chemical Properties ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Research Station ◽  
Physical And Chemical Properties ◽  
Prunus Domestica ◽  
Total Anthocyanins ◽  
Physical And Chemical ◽  
And Chemical Properties

Fruits from twelve plum cultivars (Prunus domestica L.), were analyzed in terms of physical and chemical characteristics. The fruits trees were grown in a trial at University of Craiova - Fruit Growing Research Station (SCDP) Valcea, which is located in Bujoreni, an important Romanian plum production area. Fruits were picked at harvest maturity. Several analyzes were performed, such as fruit linear dimensions, size index, fruit weight, dry matter, soluble solids content, titratable acidity, total anthocyanins, malic, tartaric and citric acids content. The best features in terms of physical and chemical properties proved to be found in ‘Alina’, ‘Alutus’, ‘Tuleu Timpuriu’, ‘Oltenal’ and ‘Renclod Althan’.

scholarly journals Relationship between Soil Management System and Cultivar in Black Currant (Ribes nigrum L.)

2017 ◽  
Vol 66 (1-2) ◽  
pp. 21-26 ◽  
Author(s):  
Svetlana M. Paunović ◽  
Mihailo Nikolić ◽  
Rade Miletić
Keyword(s):  
Management System ◽  
Chemical Properties ◽  
Soil Management ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Management Systems ◽  
Total Phenolic ◽  
Soluble Solids Content ◽  
Black Currant ◽  
Solids Content

Summary This experiment evaluated the effect of soil management systems in a black currant planting on the generative potential (number of flowers per inflorescence, number of berries per cluster and yield per bush), physical attributes of the cluster and fruit (berry weight and cluster weight) and chemical properties of the fruit (soluble solids content, total sugars, titratable acidity, total anthocyanins, total phenolic content and vitamin C) of black currant cultivars. Three soil management systems were used: treatment I – bare fallow i.e. continuous tillage; treatment II – sawdust mulch, and treatment III – black polyethylene foil mulch. Four black currant cultivars were included - ‘Ben Lomond’, ‘Titania’, ‘Čačanska crna’ and ‘Tiben’. The soil management systems had a significant effect on the tested parameters. The cultivars also showed highly significant differences. Soil management system x cultivar interactions were observed for generative potential, and physical properties of the cluster and fruit, but not for fruit chemical traits, except in the soluble solids content.

scholarly journals Physical and chemical changes during ripening of blackberry fruits

2008 ◽  
Vol 65 (1) ◽  
pp. 87-90 ◽  
Author(s):  
Ilkay Tosun ◽  
N. Sule Ustun ◽  
Belkis Tekguler
Keyword(s):  
Dry Matter ◽  
Total Phenolics ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Total Sugar ◽  
Soluble Solids ◽  
Total Anthocyanin ◽  
A Value ◽  
Total Anthocyanins ◽  
Physical And Chemical

Blackberry (Rubus L.) is a naturally growing fruit in Anatolia. Consumption of fresh and frozen blackberries has increased in the past few years in Turkey. The aim of this study is to analyze blackberry at three levels of ripeness taking into account some physical and chemical properties (color, dry matter, soluble solids, total sugar, titratable acidity, pH, total phenolics, total anthocyanin, and minerals) in order to understand this behavior during the ripening process. Blackberry fruits were harvested at green, red and ripe (mature) stages. The determination of fruit maturity was based on fruit surface color. The dry matter, total phenolics and Hunter L, b values decreased but soluble solids, total sugar and total anthocyanins increased with maturity. In the early fruit ripening stages, pH decreased, titratable acidity and Hunter a value increased while in the later stages, pH increased, titratable acidity and Hunter a value decreased considerably. Analysis of variance revealed (P < 0.01) differences in these parameters based on ripeness stages. No remarkable changes in potassium, calcium, zinc and manganese concentrations occured during the development of fruits. Differences were observed for magnesium (P < 0.01), iron (P < 0.01) and copper (P < 0.05) during ripening of blackberry.

scholarly journals Physico-chemical and Functional Properties of Two Jackfruit (Artocarpus heterophyllus Lam.) Varieties in Eastern Visayas, Philippines

2017 ◽  
pp. 100-106 ◽  
Author(s):  
Lorina Galvez ◽  
Erlinda Dizon
Keyword(s):  
Functional Properties ◽  
Total Phenolics ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Tannin Content ◽  
Physico Chemical ◽  
Total Titratable Acidity ◽  
Physical And Chemical ◽  
And Chemical Properties

Quality is a wide-ranging concept determined by many factors. It is a composite of those physical and chemical properties of the material which govern its acceptability and processing suitability. This study aimed to determine the physico-chemical and functional properties of the two jackfruit varieties (EVIARC Sweet and AES-2) grown in Eastern Visayas, Philippines. Fresh ripe jackfruit varieties were subjected to physico-chemical properties and functional component analyses following standard protocols. The two jackfruit varieties were found to have the following properties: the pH were 4.80 and 5.50; total soluble solids (TSS), 24.00 and 22.60oB; total titratable acidity (TTA), 0.33% and 0.12% citric acid; moisture content (MC), 77.30% and 75.96% (wb); total phenolics (TP), 127.73 and 125.91mg CE/100g; tannin content (TC),127.73 and 208.72 mg VE/100g; total reducing sugar (TRS), 15.43% and14.38%; total sulfur (TS), 0.36 and 0.57ppm; and antioxidant activity (AOA), 39.55 and 52.35% LP (lipid peroxidation) for EVIARC sweet and AES-2, respectively. Variety significantly affects the pH, TSS, TTA, %MC, TC, TRS, TS and AOA. Non-significance was noted on their TP contents.

scholarly journals Physicochemical Characterization of Selected Pomegranate (Punica granatum L.) Cultivars

2021 ◽  
Vol 2 (2) ◽  
pp. 425-433
Author(s):  
Vijay Singh MEENA ◽  
Bhushan BİBWE ◽  
Bharat BHUSHAN ◽  
Kirti JALGAONKAR ◽  
Manoj MAHAWAR
Keyword(s):  
Moisture Content ◽  
Physicochemical Characterization ◽  
Chemical Properties ◽  
Textural Properties ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Ash Content ◽  
Soluble Solids ◽  
Cultivar Differences ◽  
Total Phenolic

The physical and chemical characteristics of five pomegranate cultivars (Mridula, Ganesh, White muscut, G-137 and Jalor seedless) were examined in the present investigation. Physical properties of different cultivars were determined such as major diameter (85.05 to 91.62 mm), intermediate diameter (76.85 to 87.83 mm), minor diameter (79.86 to 90.01 mm), sphericity (0.903 to 0.937), fruit weight (294.4 to 404.14 g), fruit volume (289 to 387 mL), number of arils per fruit, weight of 100 arils were evaluated and analysed for the varietal difference. In addition, properties such as peel moisture content (68.72 to 74.15% w.b.), aril moisture content (78.25 to 81.82% w.b.), peel ash content (0.81 to 1.51%), aril ash content (0.29 to 0.53%), juice pH (3.47 to 3.96), total soluble solids (11.60 to 13.00 °Brix), titratable acidity (0.42 to 0.58%), total phenolic content, juice yield per fruit (104 to 186 mL) juice turbidity (142.20 to 364.50 NTU) and textural properties, like fruit compressive strength/firmness of arils (23.09 to 34.54 N), cutting strength of peel (84.33 to 111.35 N) and aril skin puncture force (0.28 to 0.38 N) were also investigated. Overall results suggested that the measured physico-chemical properties were quite different by the cultivar differences.

scholarly journals Jambolan nectar: physical and chemical properties due to formulation ingredients

2020 ◽  
Vol 9 (5) ◽  
pp. e161953212
Author(s):  
Jackeline Cintra Soares ◽  
Manoel Soares Soares Júnior ◽  
Iramaia Angélica Neri Numa ◽  
Gláucia Maria Pastore ◽  
Márcio Caliari
Keyword(s):  
Citric Acid ◽  
Food Industry ◽  
Chemical Properties ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Chemical Characteristics ◽  
Physical And Chemical Properties ◽  
Simplex Design ◽  
Physical And Chemical ◽  
And Chemical Properties

The objective of this work was to evaluate the influence of different proportions of jambolan pulp, sugar and water on the physical and chemical characteristics to obtain information that allows the use of jambolan and, consequently, the evaluation of these fruits. Six jambolan nectar formulations were established through Simplex design. Ingredients significantly affected luminosity (32,14-34,24), apparent viscosity (7.8-73.8 cP), total soluble solids (8.87-26.43 °Brix), titratable acidity (0.55 -0.83g citric acid 100g-1) and the TSS / TA ratio (16.05-34.96) in jambolan nectars. Jambolan nectar with 55g 100g-1 of jambolan pulp, 15g 100g-1 of sugar and 30g 100g-1 of water has the highest desirability in relation to physical and physicochemical properties, 85.1% DPPH inhibition, 10526.12 μg TE mL-1 and 27014.25 μmol TE mL-1 by ABTS and ORAC method, respectively. It could be concluded that it is possible to produce jambolan nectar which can increase the possibilities of applying fruit as an ingredient in the food industry.

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