Physicochemical and nutritional evaluation of Spanish melon landraces

2015 ◽  
Vol 15 (2) ◽  
pp. 177-186 ◽  
Author(s):  
Sandra Escribano ◽  
Almudena Lázaro
Keyword(s):  
Ascorbic Acid ◽  
Genetic Material ◽  
Dry Weight ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Fresh Weight ◽  
Repetition Effects ◽  
Nutrient Contents ◽  
Solids Content ◽  
The 19Th Century

The study of unknown and therefore unexploited genetic material from landraces and wild relatives could be essential to help modern plant breeders to respond to ongoing requirements and new challenges in food production. The present study evaluates the most relevant physicochemical values and nutrient contents of a genetically unique array of traditional melon varieties, cultivated in Spain at least since the 19th century, and compares them with modern melon hybrids available on the market. This research is complemented with an assessment of variety, environment and repetition effects on each trait to determine their stability. Spanish melon landraces displayed extraordinary diversity with respect to juiciness (70.59–95.97 g/100 g water fresh weight), firmness (20.75–149.89 N), soluble solids content (9.57–16.53 °Brix), pH (5.04–6.38), total sugars (360.21–877.36 mg/g dry weight), carotenoids (0.01–2.05 μg/g fresh weight) and ascorbic acid values (7.55–44.33 mg/100 g fresh weight). A subset of these landraces, belonging to Piel de Sapo and Rochet market classes, revealed remarkably superior values of ascorbic acid in comparison with all commercial varieties, doubling ascorbic acid values with respect to their corresponding market class. Furthermore, most of these landraces exhibited high acidity and accumulated high levels of sugars, fulfilling those sensory and physicochemical characteristics that researchers and breeders have spent many years seeking. The possibilities of these landraces to be used in improvement projects are innumerable; they should be surely taken into account in the near future.

scholarly journals Physicochemical quality of araçaúna and grumixama at different ripening stages

2020 ◽  
Vol 42 (6) ◽  
Author(s):  
Bruna Lara Alvarenga Barros ◽  
Moises Zucoloto ◽  
Sarah Ola Moreira ◽  
Tiago de Oliveira Godinho ◽  
Stanley Bravo Buffon ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Citric Acid ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Cross Sectional ◽  
Ripening Stages ◽  
Solids Content

Abstract The physicochemical characteristics of fruits of species native to the Atlantic Forest are little known, especially during ripening. The aim of this work was to evaluate the effect of the interaction between ripening period and post-harvest storage of araçaúna and grumixama. Fruits were harvested at three ripening stages: green, partially ripe and ripe, according to the epicarp color, and separated into two groups, being stored for 2 and 48 hours. The following variables were evaluated: longitudinal (LD) and cross-sectional (CD) diameter, LD / CD ratio, fresh fruit mass (FM), pulp yield (PY), pH, soluble solids content (SS), titratable acidity (TA), SS / TA ratio, and ascorbic acid content (AA). Araçaúna fruits stand out due to their high PY (74.43%), with low SS (2.07 ºBrix) and high TA (1.17% citric acid). However, harvesting fully ripe fruits increases SS by 21% and reduces TA by 32.5%. Grumixama fruits are slightly sweet (6.06 ºBrix), with low acidity (0.39% citric acid), high vitamin C content (206.94 mg of ascorbic acid/100g of pulp), and harvest must be performed when fruits are fully ripe. Both species have pulp of potential quality to be commercially exploited, especially for processing.

scholarly journals Optimising Tropical Fruit Juice Quality Using Thermosonication-Assisted Extraction via Blocked Face-Centered Composite Design

Processes ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 3
Author(s):  
Norazlin Abdullah ◽  
Nyuk Ling Chin
Keyword(s):  
Ascorbic Acid ◽  
Fruit Juice ◽  
Ascorbic Acid Content ◽  
Soluble Solids ◽  
Quadratic Model ◽  
Juice Quality ◽  
Tropical Fruit ◽  
Total Soluble Solids ◽  
Juice Yield ◽  
Solids Content

Extraction of tropical fruit juice using simple, efficient, and environmentally friendly technologies is gaining importance to produce high quality juices. Juice from pink-fleshed guava, pink-fleshed pomelo, and soursop was extracted using direct and indirect thermosonication methods by varying intensity, time, and temperature, and compared to those extracted using water bath incubation. Improvised models of juice yield, ascorbic acid, and total soluble solids responses were generated by eliminating insignificant model terms of the factors in full quadratic model using backward eliminating procedure. Main effects, 3D, or 4D plots for each response were developed based on factors that influenced the response. Results showed that the best extraction method for guava and pomelo juices were within indirect thermosonication method of 1 kW, 55 °C and 30 min, and 2.5 kW, 54 °C and 23 min, respectively. Direct thermosonication method at 10% amplitude, 55 °C for 2 to 10 min was more suitable for soursop juice. Thermosonicated extraction of tropical fruit juice can improve its juice yield, ascorbic acid content, and total soluble solids content.

scholarly journals Postharvest quality of strawberry fruits produced in organic and conventional systems

2011 ◽  
Vol 29 (4) ◽  
pp. 577-583 ◽  
Author(s):  
Letícia KP Camargo ◽  
Juliano Tadeu V de Resende ◽  
Tânia T Tominaga ◽  
Sonia Maria Kurchaidt ◽  
Cristhiano K Camargo ◽  
...  
Keyword(s):  
Titratable Acidity ◽  
Physicochemical Characteristics ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Conventional System ◽  
Organic System ◽  
Camino Real ◽  
Sensorial Attributes ◽  
Solids Content ◽  
Conventional Systems

The aim of this study was to determine some physicochemical characteristics of fruits of eight strawberry cultivars (Aromas, Camino Real, Campinas, Dover, Oso Grande, Toyonoka, Tudla-Milsei and Ventana) cultivated in organic and conventional systems. The evaluated characteristics were soluble solids (SS), titratable acidity (TA), SS/AT ratio and anthocyanins. Evaluated sensory characteristics were flavor and appearance. The cultivars had a differential performance between themselves and among the systems for the evaluated characteristics. Generally, the conventional system produced fruit with higher levels of soluble solids and, organic system produced higher concentrations of anthocyanins. The fruits of the cultivar Toyonoka had the best soluble solids content in both systems and the anthocyanins content of 'Tudla-Milsei' and 'Camino Real' were proeminent in comparison to the other cultivars. The fruits from the organic system of production were preferred by judges on the sensorial attributes. The highest notes were given to the appearance of the cultivar Ventana in the conventional system and 'Tudla-Milsei' in the organic system.

scholarly journals Phosphorus (P) improves industrial tomato quality and yield in soil with high phosphorus content

2020 ◽  
pp. 1335-1341
Author(s):  
Arthur Bernardes Cecílio Filho ◽  
Bruno Trevizaneli ◽  
Sergio Manuel Rugeles Reyes
Keyword(s):  
Soluble Solids ◽  
Tomato Crop ◽  
Nutrient Contents ◽  
Soil P ◽  
Yield And Quality ◽  
P Content ◽  
Tomato Processing ◽  
Commercial Yield ◽  
Solids Content

Soils under intensive and successive cropping with central pivot irrigation tend to present high nutrient contents, especially phosphorus (P), which is a nutrient with a great impact on the yield and quality of agricultural products. Among the rotating crops, the application of high P rates is common in processing tomato, although not supported by research. This work evaluates the effect of phosphate fertilization (0, 200, 400, 600, 800, and 1000 kg ha-1 P2O5) on the yield and quality of industrial tomato ‘Heinz 9553’ grown in a soil with high available P content (145 mg dm-3) resulting of an intensive vegetables cultivation, which have high demand by P. The highest total (127.4 t ha-1) and commercial (108.6 t ha-1) yields were obtained with 413.9 and 384 kg ha-1 P2O5, respectively. The results showed that pH of tomato juice, the percentages of green, red, and commercial fruits were not influenced by the applied P rates. However, nutrient delivery increased the soluble solids content up to 356 kg ha-1 P2O5, which is interesting for tomato processing. After harvesting the fruits, the available soil P content was increased with P supply to the plants. For improvement of commercial yield and soluble solids characteristics, the tomato crop shall be fertilised with P even though the soil has high P content.

scholarly journals ANTIOXIDANT ACTIVITY DURING STORAGE OF APPLES SUBJECTED TO IRRADIATION

2015 ◽  
Vol 39 (3) ◽  
pp. 269-275 ◽  
Author(s):  
Camila Argenta Fante ◽  
Heloísa Helena de Siqueira Elias ◽  
Paôla de Castro Henrique ◽  
Ana Carolina Vilas Boas ◽  
Luiz Carlos de Oliveira Lima
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Soluble Solids ◽  
Antioxidant Compounds ◽  
Post Harvest ◽  
Apple Cultivars ◽  
Solids Content ◽  
Physical And Chemical ◽  
Β Carotene ◽  
Low Irradiation

Nowadays, the number of studies about fruit conservation as well as the benefits of consumption of foods rich in antioxidant compounds was increased. This study aimed to quantify antioxidant compounds and their activity and to evaluate the physical and chemical changes during the post-harvest storage of Eva's apple cultivars that were subjected to gamma irradiation at doses of 0; 0.5; 1.0 and 1.5 kGy. The antioxidant activity was measured by the 2.2-diphenyl-1-picrylhydrazyl (DPPH) and the β-carotene/linolenic acid methods. Levels of total phenolics, ascorbic acid, color, and soluble solids were evaluated. The results showed that, regardless of the irradiation dose, there was an increase in % SRL during post-harvest storage of Eva's apples. Low irradiation doses were able to preserve the phenolic compounds, maintain the ascorbic acid levels and avoid an increase in the soluble solids content.

scholarly journals Bamboo Biochar Pyrolyzed at Low Temperature Improves Tomato Plant Growth and Fruit Quality

Agriculture ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 153 ◽  
Author(s):  
Ratna Suthar ◽  
Cun Wang ◽  
M. Nunes ◽  
Jianjun Chen ◽  
Steven Sargent ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Plant Growth ◽  
Fruit Quality ◽  
Growth Index ◽  
Application Rate ◽  
Soluble Solids ◽  
Solanum Lycopersicum L ◽  
Different Temperatures ◽  
Solids Content

As a soil amendment, biochar can significantly improve soil quality and crop growth. Few studies, however, have explored biochar effects on crop quality. This study investigated the amendment effects of bamboo biochar pyrolyzed at different temperatures on plant growth and fruit quality of tomato (Solanum lycopersicum L.). Tomato ‘Micro-Tom’ plants were grown in a sand medium amended with 0, 1, and 3% of biochars produced at 300 °C, 450 °C, and 600 °C, respectively. Plant growth was monitored, and fruit harvested at the red stage was analyzed for color, texture, soluble solids content, sugars, ascorbic acid, and acidity. Results showed that biochars produced at 300 °C and amended at 3% or pyrolyzed at 450 °C and amended at 1% increased plant growth index. Contents of glucose, fructose, soluble solids, ascorbic acid, and sugar-to-acid ratios of fruits produced from the two treatments were significantly higher than the other treatments. The improved plant growth and fruit quality were related to the higher concentrations of NO3, P, Ca, and Mg in the growing media. Our results suggest that optimizing biochar use can be achieved by targeting biochar production conditions and application rate, which resulted in desirable amendment and fruit quality effects.

scholarly journals Physiology of Pea Fruits I. the Developing Fruit

1955 ◽  
Vol 8 (2) ◽  
pp. 137 ◽  
Author(s):  
HS Mckee ◽  
RN Robertson ◽  
JB Lee
Keyword(s):  
Ascorbic Acid ◽  
Cell Volume ◽  
Starch Content ◽  
Dry Weight ◽  
Metabolic Changes ◽  
Soluble Carbohydrate ◽  
Soluble Nitrogen ◽  
Fresh Weight ◽  
Protein Nitrogen ◽  
Respiration Rates

Pea fruits from two crops were sampled at different times from flowering. Changes in the fresh weight, dry weight, starch, soluble carbohydrate, protein nitrogen, and soluble nitrogen in both seeds and hulls were followed in two seasons and related Jo the changes in cell volume in the seeds. In one season respiration rates and phosphate, pectin, and ascorbic acid contents were also investigated. The seeds gained more carbohydrate and nitrogen than was lost by the hulls. Starch and protein were synthesized rapidly by the seeds. The increase in starch content in the seeds was followed by a decrease in soluble carbohydrate content, after which the seed ceased to accumulate water. These metabolic changes are discussed in the light of recent biochemical knowledge, and in relation to more detailed biochemical investigations in progress.

scholarly journals Effect of ascorbic and salicylic acids on growth and flowering of Gazania cv. Frosty Kiss Mixed

2020 ◽  
Vol 26 (4) ◽  
pp. 537-544
Author(s):  
Abdul Kareem A.J. Mohammad Saeed
Keyword(s):  
Ascorbic Acid ◽  
Leaf Area ◽  
Growth Traits ◽  
Foliar Spray ◽  
Dry Weight ◽  
Fresh Weight ◽  
Flowering Duration ◽  
Flowering Date ◽  
Flower Diameter ◽  
Number Of Leaves

Abstract An experiment was conducted during the season 2018-2019 in the lath house to study the effect of foliar spray with Ascorbic Acid (AsA) and Salicylic Acid (SA) on vegetative and flowering growth traits of Gazania (Gazania rigens L.) cv. Frosty Kiss Mixed. The experiment was designed as a factorial experiment (3×3) in Randomized Complete Blocks Design (RCBD) with three replicates. Plants were sprayed with concentrations of 0, 100, and 200 mg L-1 of AsA, and 0, 150 and 300 mg L-1 of SA. Foliar spray with 200 mg L-1 of AsA was superior on increasing number of leaves (40.00), number of suckers (9.22), leaf area (2174.09 cm2), leaves dry weight (6.36 g), number of flowers (5.64), early of flowering date (97.22 days), flower fresh and dry weight (4.78 g) (0.51 g) respectively, while spray with a concentration of 100 mg L-1 led to increase flower diameter (6.37 cm) and flowering duration (10.85 days). Foliar spray with SA improved all vegetative and flowering traits. Treatment of 300 mg L-1 was the most significant effect in increasing number of leaves (39.56), leaf area (2182.06 cm2), leaves fresh weight (43.93 g), number of flowers (5.83), flower diameter (6.31 cm), early of flowering date (98.07 days), and flower dry weight (0.50 g). The interaction effect between the studied factors was significant in all studied traits. Treatment of AsA200×SA150 was the most effective and gave the best results in terms of number of suckers (9.11), dry weight of leaves (6.49 g), number of flowers (5.87), flower diameter (6.44 cm), flowering date (96.98 days), flowering duration (10.89 days).

scholarly journals Increasing Nitrogen Concentration in Hydroponic Solutions Affects Onion Flavor and Bulb Quality

2000 ◽  
Vol 125 (2) ◽  
pp. 254-259 ◽  
Author(s):  
W.M. Randle
Keyword(s):  
Nitrogen Concentration ◽  
N Fertilization ◽  
Solution Culture ◽  
Soluble Solids ◽  
Flavor Quality ◽  
Fresh Weight ◽  
N Concentration ◽  
Nitrogen Fertility ◽  
Solids Content ◽  
Cysteine Sulfoxide

To test the effects of high nitrogen (N) fertilization levels on onion quality and bulb flavor, `Granex 33' onions (Allium cepa L.) were greenhouse grown in hydroponic solution culture with increasing N concentrations. Nitrogen was adjusted in the solutions with NH4NO3 and increased incrementally from 0.22 g·L-1 to 0.97 g·L-1 over five treatments. Plants were harvested at maturity and subjected to quality, flavor, and mineral analysis. As solution N increased, bulb fresh weight and bulb firmness decreased linearly. Gross flavor intensity, as measured by enzymatically developed pyruvic acid (EPY) increased linearly for N concentrations between 0.22 and 0.78 g·L-1, but EPY was reduced slightly in bulbs grown at the highest N level (0.97 g·L-1). Soluble solids content was unaffected by solution N concentration. Solution N had an affect on flavor quality. Methyl cysteine sulfoxide, which gives rise to cabbage (Brassica L. sp.) and fresh onion flavors upon eating, generally increased in concentration as solution N increased. 1-Propenyl cysteine sulfoxide, which imparts heat, mouth burn, pungency, and raw onion flavors increased between the two lowest N concentrations, and then decreased as solution N increased. Propyl cysteine sulfoxide, which imparts fresh onion and sulfur flavors upon eating, generally increased with increasing solution N concentration. Several minerals were also affected by solution N concentration. Total bulb N and NO3- increased linearly while B, Ca, and Mg decreased linearly. Total bulb S and K increased and then decreased quadratically in response to increasing solution N. Nitrogen fertility can have a pronounced affect on onion flavor and as a consequence, needs to be considered when growing onions for specific flavor quality and nutritional attributes.

scholarly journals Effect of Opuntia ficus-indica Mucilage Edible Coating on Quality, Nutraceutical, and Sensorial Parameters of Minimally Processed Cactus Pear Fruits

Agronomy ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1963
Author(s):  
Giorgia Liguori ◽  
Raimondo Gaglio ◽  
Giuseppe Greco ◽  
Carla Gentile ◽  
Luca Settanni ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Edible Coating ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Minimally Processed ◽  
Cactus Pear ◽  
Opuntia Ficus Indica ◽  
Postharvest Life ◽  
Solids Content ◽  
And Diffusion

Cactus pear (Opuntia ficus-indica (L.) Mill.) is a non-climacteric fruit with a relatively short postharvest life span, being very sensitive to water loss, darkening and decay. Cactus pear is a spiny fruit, and the presence of glochids limits fruit consumption and diffusion; therefore, minimally processing, as well as peel removing, could be an opportunity to improve its availability, consumption, and diffusion in national and international markets. In this study, cactus pear minimally processed fruits were treated with a mucilage-based coating extracted from Opuntia ficus-indica cladodes and stored at 5 °C for 9 days. The effect of mucilage edible coating on the postharvest life, qualitative attributes, and nutraceutical value of fruit were evaluated by colors, firmness, total soluble solids content, titratable acidity, ascorbic acid, betalains and DPPH (2,2-diphenyl-1-picrylhydrazyl). Results showed that mucilage-based coating improved the quality and preserves the nutraceutical value of minimally processed cactus pear fruits during storage. The edible coating was effective in maintaining fruit fresh weight, total soluble solids content, fruit firmness, ascorbic acid and betalain content, sensorial traits, and visual score. Coated fruits showed a significantly lower microbiological growth than uncoated control fruits during the entire cold storage period.

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