scholarly journals Physicochemical properties of seven outstanding strawberry (Fragaria x ananassa Duch.) varieties cultivated in Cundinamarca (Colombia) during maturation

2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Gerhard Fischer ◽  
David López-Valencia ◽  
Manuel Sánchez-Gómez ◽  
John Fabio Acuña-Caita
Keyword(s):  
Titratable Acidity ◽  
Fruit Weight ◽  
Fragaria X Ananassa ◽  
Maturity Index ◽  
Soluble Solids ◽  
Maturity Stage ◽  
Fresh Weight ◽  
Respiration Rates ◽  
Total Titratable Acidity ◽  
Maturation State

The strawberry market in Cundinamarca (Colombia) is mainly size driven with no consideration for its maturation state and nutritional quality, wasting therefore, its organoleptic and nutritional potential. For that reason, the physicochemical differences among seven strawberry varieties (Albión, Dulce Ana, Lucía, Monterrey, Ruby June, Sabrina and Ventana) cultivated in the municipality of Sibaté (Cundinamarca) were established. Fruits collected from a productive plot with homogeneous cultivation management conditions were analyzed in six maturity states, establishing the degree of red pigmentation according to the Colombian Standard ntc 4103. Fresh weight, size, color, firmness, total soluble solids (tss), total titratable acidity (tta), maturity and respiration indices were evaluated. Fruits in stages 4, 2 and 3 developed their largest size and weight, where the variety Dulce Ana stands out. The highest color index values were found in the maturity stage 5 in the variety Ventana. Moreover, the highest firmness values were recorded in stages 4 and 5 in the varieties Monterrey and Ventana. The varieties Sabrina, Dulce Ana and Monterrey accumulated the highest tss concentration and the last two showed the best maturity relations. Respiration rates increased with maturation, especially from stage 3. The results suggest that the optimum commercialization and consumption points are stages 3 and 4, namely because these stages exhibit the highest maturity index and fruit weight. Among the varieties studied, Monterrey stands out due to its firmness and maturity index.

scholarly journals Analysis of growth and physicochemical changes in apple cv. Anna in a high-altitude tropical climate

2021 ◽  
Vol 15 (2) ◽  
Author(s):  
Andrea Cepeda M. ◽  
Javier Enrique Vélez-Sánchez ◽  
Helber Enrique Balaguera-López
Keyword(s):  
High Altitude ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Growing Degree Days ◽  
Fresh Weight ◽  
Degree Days ◽  
Important Advance ◽  
Physicochemical Changes ◽  
Tropical Conditions ◽  
Total Titratable Acidity

The objective of this research was to carry out an analysis of growth and physicochemical changes in cv. Anna apple in the Colombian high-altitude tropics using on the accumulation of growing degree days (GDD). Fruit samplings were taken every 15 days after anthesis (DAA) until harvest at 100 DAA (892.37 GDD). The dry and fresh weight and the equatorial and polar diameters followed a simple sigmoidal pattern. This was confirmed with the behavior of the growth rates. The equatorial and polar diameters increased drastically between 455.39 and 589.32 GDD (45 and 60 DAA), while the weight did not, indicating that the void spaces increased in the pulp during this period. The respiratory rate had the highest value (61.93±6.79 mg CO2 kg-1 h-1) at 159.61 GDD (15 DAA) and then decreased continuously until harvest. The firmness increased from 159.61 to 455.39 GDD and, then continuously decreased, at harvest, it was 38.38±3.48 N. The total soluble solids increased and had an ending value of 8.58±0.37ºBrix. The total titratable acidity increased from 159.61 to 319.79 GDD (30 DAA), and then decreased until the end of the study with an acidity of 0.71±0.03%. The color index increased linearly as a function of development, but the values were <0 at harvest. These results are an important advance for knowledge on the behavior of apple cv. Anna under high-altitude tropical conditions.

scholarly journals Postharvest Quality of Grape Tomatoes Treated with 1-Methylcyclopropene at Advanced Ripeness Stages

HortScience ◽  
2006 ◽  
Vol 41 (1) ◽  
pp. 183-187 ◽  
Author(s):  
Muharrem Ergun ◽  
Steven A. Sargent ◽  
Donald J. Huber
Keyword(s):  
Ethylene Production ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Fruit Firmness ◽  
Soluble Solids Content ◽  
Respiration Rates ◽  
Total Titratable Acidity ◽  
Solids Content

Grape tomatoes (Lycopersicon esculentum Mill. `Santa') harvested at light-red (>90% color) and full-red stages were treated with 1 μL·L–1 1-methylcyclopropene (1-MCP) for 24 hours at 20 °C and stored at 20 °C. After 1 day of storage, fruit harvested at light-red stage treated with 1-MCP had a 56% lower respiration rate than untreated fruit. By day 7, respiration rates of the two treatments had converged at about 2 mL·kg–1·h–1. Ethylene production of light-red stage tomatoes treated with 1-MPC was 24% lower than untreated during storage, with rates converging by day 11. For fruit harvested full-red, 1-MCP had similar effects on respiration and ethylene production, although convergence occurred earlier, by day 5. Subsequent tests were conducted only with fruit harvested at full-red stage, since fruit harvested at the light-red stage had lower soluble solids content (4.3%) than fruit harvested at the full-red stage (5.5%). Several combinations of 1-MCP concentrations and exposure times were applied at 20 °C: 1 μL·L–1 for 24 h, 5 μL·L–1 for 6 or 12 h, 25 μL·L–1 for 6 or 12 h, and 50 μL·L–1 for 6 or 12 h; following the respective pretreatment fruits were stored at 20 °C. 1-MCP pretreatment extended marketable life by 1 d, irrespective of pretreatment regime, where untreated and pretreated fruit remained marketable (<15% of fruit soft, decayed and/or shriveled) for 6 and 7 d, respectively. However, 1-MCP did not affect whole fruit firmness, epidermal color, internal color, soluble solids content (6.5%), total titratable acidity (0.64%), or pH (4.3). In a third test simulating commercial handling procedures, full-red harvested tomatoes were treated with 1 μL·L–1 1-MCP for 24 h at either 13 or 20 °C, stored for 4 d at 13 °C, and then transferred to 20 °C. Under these conditions, marketable life for untreated and 1-MCP-treated tomatoes was 7 and 8 d, respectively.

scholarly journals Yield, physicochemical quality, and antioxidant capacity of “beef” and wild tomato fruits (Solanum lycopersicum L.) as a function of the electrical conductivity of the nutrient solution

2017 ◽  
Vol 35 (3) ◽  
pp. 330-339
Author(s):  
María Teresa Martínez-Damían ◽  
Oscar Cruz-Álvarez ◽  
Juan Enrique Rodríguez-Pérez ◽  
María Teresa Colinas-León ◽  
Miguel Angel Góngora-Canto
Keyword(s):  
Electrical Conductivity ◽  
Antioxidant Capacity ◽  
Nutrient Solution ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Physicochemical Quality ◽  
Solanum Lycopersicum L ◽  
Total Titratable Acidity ◽  
Hue Angle

The objective of this study was to evaluate the response of three levels of electrical conductivity (2.0, 2.5 and 3.0 dS m-1) of Steiner’s nutrient solution on the yield, physicochemical quality, and antioxidant capacity of fruits from seven tomato genotypes and wild types of tomato (kidney selections). The yield, number of fruits per cluster (NFPC), average fresh fruit weight (AFWF), color, firmness, total soluble solids (TSS), total titratable acidity (TTA), vitamin C (VC), total phenols (TP), lycopene (LY) and antioxidant capacity (AC). The use of 2.5 and 3.0 dS m-1 increased the hue angle (49.05°) and TTA (0.35 and 0.36% citric acid). Among genotypes, L-51H and L-76H showed better performance (16.80 and 16.91 kg m-2, respectively), where L-28 stood out for its values of TSS, TTA, VC, TP and AC. Regarding the wild genotypes, the EC modification did not increase the yield; however, the use of 3.0 dS m-1 allowed the best results among the wild selections were SS3 (yield, AFWF and LY) and SS5 (NFPC, VC, TP and AC). The modification of the EC did not affect the yield, however, if it affected the physicochemical quality and antioxidant capacity of the analyzed materials.

Effectiveness of Fruit Bagging for the Control of Insect-Pests Complex and its Impact on Quality of Mango Fruits

2019 ◽  
pp. 45-48
Author(s):  
Haider Karar ◽  
Maqbool Ahmad ◽  
Hameed Ullah ◽  
Muhammad Wajid ◽  
Muhammad Zubair ◽  
...  
Keyword(s):  
Insect Pests ◽  
Mangifera Indica ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Maturity Stage ◽  
Stone Size ◽  
Color Development ◽  
Fruit Bagging

Mango (Mangifera indica L.) is famous among all fruits because of its taste, variety and color. However, the quality of mango fruits is mainly deteriorated by insect-pests complex. The study was performed to evaluate bagging effects on insect-pests complex, yield and quality of mango fruits at private mango orchards located in Multan district. A mango cultivar, Anwar Rataul was selected, and the fruits were bagged during 1st week of May (at stone size stage) to 1st week of July 2017 (at maturity stage). The results indicated that the attack of fruit flies and other insect-pests complex were zero in bagged fruits. It was further recorded that the maximum average fruit weight i.e. 203.50 g was noted in those where butter paper bag was wrapped as compared with brown paper bagged fruits having 197.83 g and un-bagged fruits with 159.50 g per fruit. However, brown paper bag resulted in better fruit color development. Similarly, average fruit lengths were greater i.e. 91.33 and 90.18 mm in butter paper and brown paper bagged fruits, respectively as compared to 85.33 mm in un-bagged fruits. Bagged fruits had higher total soluble solids and slightly lower titratable acidity as compared to un-bagged fruits. Further, bagged fruits had no cracks, sunburn, mechanical injury, bird damage, skin blemishes and agrochemical residues. So, it is concluded that fruit bagging on mango cv. Anwar Rataul trees at stone size stage proved to be an effective practice against insect-pests complex and for quality production of fruits for export purposes.

scholarly journals Physicochemical characteristics of unripe and ripe banana ‘FHIA 18’ submitted to phosphorus fertilizer over three production cycles

2020 ◽  
Vol 41 (1) ◽  
pp. 33
Author(s):  
Ana Carolina Batista Bolfarini ◽  
Jackson Mirellys Azevêdo Souza ◽  
Fernando Ferrari Putti ◽  
Marcelo de Souza Silva ◽  
Rafael Bibiano Ferreira ◽  
...  
Keyword(s):  
Dry Matter ◽  
Reducing Sugars ◽  
Titratable Acidity ◽  
Maturity Index ◽  
Soluble Solids ◽  
Recommended Dose ◽  
Total Sugars ◽  
Total Titratable Acidity ◽  
Production Cycles ◽  
Unripe Fruits

The banana fruits of ‘FHIA 18’ have sensory properties like the ‘Prata’ ones. However, there is no information regarding to phosphorus (P) requirement of this hybrid and its effects on postharvest quality. This study aims to evaluate the physicochemical properties of ‘FHIA 18’ banana fruits submitted to different phosphorus levels under the edaphoclimatic conditions of the municipality of São Manuel, state of São Paulo, during three successive production cycles. Therefore, different levels of Phosphorus (0 [0%], 20 [50%)], 30 [75%], 40 [100%], 50 [125%] and 60 kg ha-1 year-1 P2O5 [150%]) were applied during three production cycles. A completely randomized design and split plot structure was used, the plots consisted of six phosphorus fertilizers doses and three production cycles (2014, 2015 and 2016) in sub plots. For unripe fruits, we evaluated the contents of dry matter, starch, total sugars, reducing sugars and phosphorus. For ripe fruits, we analyzed firmness, peel colour descriptors, total titratable acidity, total soluble solids, maturity index, total sugars and reducing sugars. Results showed that P fertilizer provided an increase in P content in unripe fruits until the application of 100% of the recommended dose; besides an increase in the reducing sugar contents until the application of 61% over the first production cycle. Results also indicated that applying lower phosphorus doses ( ? 100% of the recommended dose) promoted lower total titratable acidity and higher maturity index (52-53% of recommendation) in ripe fruits. Regardless of P2O5 dose, the contents of dry matter, starch and phosphorus increased in unripe fruits from first to third crop cycle, as well as the firmness, total soluble solids contents, maturity index and sugar content in ripe fruits.

scholarly journals Fruit quality of a traditional pineapple cultivar (Turiaçu) compared to the most popular cultivar (Pérola) in Brazil

2019 ◽  
Vol 13 ((04) 2019) ◽  
pp. 546-551 ◽  
Author(s):  
Fabrício de Oliveira Reis ◽  
José Ribamar Gusmão Araujo ◽  
Heder Braun ◽  
Augusto César Vieira Neves Junior ◽  
Anna Paula A Pereira
Keyword(s):  
Titratable Acidity ◽  
Fruit Weight ◽  
The State ◽  
Soluble Solids ◽  
Pulp Yield ◽  
Chemical Characteristics ◽  
Consumer Market ◽  
Total Titratable Acidity ◽  
Green Stage

Turiaçu is a traditional pineapple cultivar in the state of Maranhão, Brazil, and its fruits have high potential for the fresh fruit market due to consumer acceptance. This cultivar is in the process of domestication, but information on the quality of its fruits and their standards for marketing is scarce. The objective of this study was to evaluate the biometric and chemical characteristics of the Turiaçu pineapple cultivar and the Pérola cultivar, which are grown in the main pineapple producing areas—Turiaçu, and São Domingos do Maranhão—in the state of Maranhão. The fruits were harvested at the green stage to evaluate the following biometric characteristics: fruit weight, infructescence weight, pulp yield, crown, peel and total residues, and base to apex diameter ratio; and the following chemical characteristics—total soluble solids (TSS), total titratable acidity (TTA), and TSS to TTA chemical ratio. The Turiaçu cultivar presented higher fruit and infructescence weights, more cylindrical fruits, and pulp with higher TSS concentration and less acidity, compared to the Pérola cultivar. Fruits of the Turiaçu cultivar had more desirable biometric and chemical qualities for the consumer market— they were large, cylindrical, sweet, and with low acidity—, compared to those of the Pérola cultivar.

scholarly journals PRELIMINARY RESULTS REGARDING THE FRUIT QUALITY AND YIELD OF SOME BLUEBERRY GENOTYPES

2021 ◽  
Vol 10 (20) ◽  
pp. 79-84
Author(s):  
Oana Hera ◽  
Monica Sturzeanu ◽  
Răzvan Teodorescu
Keyword(s):  
Titratable Acidity ◽  
Vaccinium Corymbosum ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Fruit Characteristics ◽  
High Productivity ◽  
Small Fruit ◽  
Total Titratable Acidity ◽  
Fruit Growing ◽  
Fruit Diameter

Vaccinium corymbosum is one of the berry species with economic and food interest to Romanian growers and consumers. The development of blueberrty crop is a result of breeding activity, which has generated many cultivars of quality fruit and high productivity. The characters that are of economic interest in the cultivation of blueberries depend on the area of cultivation where the new cultivars are obtained. The study was conducted in summer 2020 in an experimental plot established in 2015 with seven blueberry genotypes, at Research Institute for Fruit Growing, Pitesti, Romania in the Small Fruit Laboratory, having an experience in the field of more than 40 years. The objective at this study is to compare some of fruit characteristics from genotypes 'Azur', 'Delicia', 'Duke', 'Northblue', 'Simultan', '4/6' and '6/38': plant yield, average fruit weight, fruit length, fruit diameter, the soluble solids, fruit acidity or pH, fruit firmness. During this study 'Delicia' cv. proved to have the highest production per plant (4.20 kg plant), the highest values of fruit diameter (19.70 mm), and the highest value of fruit total titratable acidity (01.25 %).

scholarly journals Ripening pattern of guava cv. Pedro Sato

2012 ◽  
Vol 32 (2) ◽  
pp. 344-350 ◽  
Author(s):  
José Renato de Abreu ◽  
Custódio Donizete dos Santos ◽  
Celeste Maria Patto de Abreu ◽  
Ana Carla Marques Pinheiro ◽  
Angelita Duarte Corrêa
Keyword(s):  
Relative Humidity ◽  
Ethylene Production ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Ethylene Synthesis ◽  
Total Soluble Solids ◽  
Respiration Rates ◽  
Total Titratable Acidity ◽  
Respiration Pattern ◽  
Ripe Stage

Guava is a fruit with high respiration rates and a very short shelf life. Since information on its respiration pattern is contradictory, the objective was to study the changes occurring in the fruit during ripening and to relate them to the respiration behavior of this fruit. Guavas were picked at the half-ripe stage and stored for 8 days at 22 ± 1 ºC and 78 ± 1% relative humidity. The analyses conducted were: peel and pulp coloration, firmness, total soluble solids (TSS), total titratable acidity (TTA), and ethylene production. According to the results, it was verified that the parameters analyzed apparently do not coincide and are ethylene-independent. There was an accentuated ethylene production during ripening, starting from the 4th day. The ethylene synthesis continued increasing up to the 8th day, when the fruits were already decomposing. It was observed that the firmness decreased sharply in the first three days of ripening, and the skin and pulp color changed during ripening. The TSS, total soluble solids, and the TTA, total titratable acidity, practically did not change during the ripening, even with the increased ethylene production. It can be concluded that guava is a fruit that presents characteristics of climacteric and non-climacteric fruits.

scholarly journals Effect of Phytosanitary Irradiation Treatment on the Storage Life of ‘Jiro’ Persimmons at 15 °C

Horticulturae ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 92
Author(s):  
John B. Golding ◽  
Penta Pristijono ◽  
Baogang Wang
Keyword(s):  
Fruit Quality ◽  
Market Access ◽  
Titratable Acidity ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Persimmon Fruit ◽  
Respiration Rates ◽  
Irradiation Treatment ◽  
Phytosanitary Treatment ◽  
Ethylene Production Rate

Irradiation is becoming a more accepted phytosanitary market access treatment for some international horticultural trades. However, there is little information on the effects of phytosanitary irradiation treatment on persimmon fruit quality. ‘Jiro’ persimmon fruit were treated with an average of 769 Gray (Gy) at a commercial phytosanitary irradiation X-ray facility to examine the effect of this market access treatment on fruit quality during storage. After treatment, fruit were stored in air at 15 °C for up to three weeks. The results showed that, in general, there was no effect of irradiation treatment on fruit weight loss, calyx appearance, fruit firmness (objective and subjective), total soluble solids (TSS), titratable acidity (TA), internal appearance, and ethylene production rate. There were some treatment differences in fruit respiration rates and some aspects of fruit appearance and colour, where irradiated fruit had higher respiration rates and were slightly darker with higher levels of skin blemish, although these measured differences were not commercially significant. This study showed the promise of using low dose irradiation as a phytosanitary treatment for ‘Jiro’ persimmons, but more work is required to test other persimmon cultivars and other storage and marketing environments.

scholarly journals PHYSICAL, CHEMICAL AND MORPHOLOGICAL CHARACTERISTICS OF BANANA CULTIVARS DEPENDING ON MATURATION STAGES

2017 ◽  
Vol 30 (1) ◽  
pp. 87-96 ◽  
Author(s):  
CÉSAR FERNANDES AQUINO ◽  
◽  
LUIZ CARLOS CHAMHUM SALOMÃO ◽  
PAULO ROBERTO CECON ◽  
DALMO LOPES DE SIQUEIRA2 ◽  
...  
Keyword(s):  
Morphological Characteristics ◽  
Titratable Acidity ◽  
Dry Weight ◽  
Soluble Solids ◽  
Width Ratio ◽  
Maturity Stage ◽  
Fresh Weight ◽  
Fruit Peel ◽  
Weight Percentage ◽  
Maturation Stages

ABSTRACT The objective of this work was to morphologically characterize 15 banana cultivars and assess the physical and chemical characteristics of their fruits at two maturation stages, unripe (pre-climacteric) and ripening. The plants were evaluated regarding their pseudostem height and diameter, petiole length, leaf blade length, width and length-to-width ratio. The cultivar Ouro had fruits with lower diameter, total length, market weight and fresh weight at both stages, and also firmer pulp when they were unripe. The cultivar Caru-Roxa had higher fresh fruit and pulp weights, and the cultivar Terrinha had the highest percentage of pulp dry weight percentage in unripe and ripe fruits. The cultivars Maçã and Ouro had higher pulp-to-peel ratio in unripe fruits. The ripe peels had lower fresh weight and thickness and higher dry weight percentage compared to unripe peels. The fruit peel of the cultivar Marmelo had the highest fresh weight at both stages. The cultivars Marmelo and Maçã had higher percentage of peel dry weight percentage at both stages. The unripe pulp had lower soluble solids. The titratable acidity in the pulp increased with ripening. The average plant height ranged from 2.25 to 6.15 m. The cultivars that had the largest pseudostem diameters had also the highest heights, except the Prata-Anã and Prata-Graúda. The cultivar and maturity stage influenced all the characteristics evaluated in fruits, except the total and market lengths, which did not vary with the ripening of fruits.

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