Qualitative and Nutraceutical Characteristics after Storage of New Pear Selections in Emilia-Romagna Region

The Emilia-Romagna region is excellent in European pear production. CREA Centro di Ricerca Olivicoltura, Frutticoltura e Agrumicoltura leads a breeding project co-founded by New Plant (a consortium of three growers’associations Apofruit, Apoconerpo, and Orogel Fresco) whose main objective is to improve fruit quality and nutraceutical parameters. The purpose of this study is to describe the qualitative characteristics of some new genotypes obtained by this breeding activity after cold storage, in comparison with the main cultivated varieties, ‘Abbé Fétel’, ‘William’s B.C’ and ‘Doyenne du Comice’. In 2013, 2014, and 2015, fruit samples, stored in a normal refrigeration room and after 100 dd, reaching the consumption ripening (2.5–3 kg/0.5 cm2), were analyzed to quantify the qualitative parameters: average weight, caliber, titratable acidity, soluble solids contents, skin color and overcolor, sugar and organic acids content, the antioxidant capacity, the total polyphenols, and ascorbic acid content. The results showed that the selection ‘CREA 171’, with red skin and yellow-cream flesh, outstood for the high antioxidant capacity due to the high content of polyphenols and ascorbic acid.

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ETHYLENE APPLICATION AFTER COLD STORAGE IMPROVES SKIN COLOR OF ‘VALENCIA’ ORANGES

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452016636 ◽

2016 ◽

Vol 38 (4) ◽

Author(s):

MARIA LUIZA LYE JOMORI ◽

NATALIA DALLOCCA BERNO ◽

RICARDO ALFREDO KLUGE

Keyword(s):

Ascorbic Acid ◽

Shelf Life ◽

Cold Storage ◽

Acid Content ◽

Skin Color ◽

Ascorbic Acid Content ◽

Titratable Acidity ◽

Soluble Solids ◽

Internal Quality ◽

Valencia Orange

ABSTRACT Degreening is a postharvest technique that consists of applying ethylene to oranges fresh fruits to improve skin color. In Brazil, this technique is still not widely applied due to a lack of specific research, resulting in poor fruit coloration, which limits the oranges’ exportation. The objective of this study was to investigate the de-greening effect of ethylene application after cold storage in ‘Valencia’ oranges. The ethylene treatments (0; 5 and 10 µL L-1 for 96 h at 22°C) were applied after storage for 30 days at 5°C. After ethylene application, the fruit were stored for three days at 22°C to simulate a shelf life. The skin color rate enhanced after ethylene treatment due to increased chlorophyllase activity. The content of carotenoids did not change, nor did the soluble solids, titratable acidity, ratio, percentage of juice and ascorbic acid content. The levels of acetaldehyde and ethanol in the juice were also assessed, and unpleasant odors or flavors did not occur despite a small increase in the acetaldehyde content. Therefore, the ethylene application after cold storage is efficient to improve the skin color of ‘Valencia’ orange without changing the internal quality.

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Effect of Ultrasound and Enzymatic Mash Treatment on Bioactive Compounds and Antioxidant Capacity of Black, Red and White Currant Juices

Molecules ◽

10.3390/molecules27010318 ◽

2022 ◽

Vol 27 (1) ◽

pp. 318

Author(s):

Marcin Kidoń ◽

Guruprasath Narasimhan

Keyword(s):

Ascorbic Acid ◽

Antioxidant Capacity ◽

Bioactive Compounds ◽

Control Sample ◽

Ascorbic Acid Content ◽

Titratable Acidity ◽

Quality Parameters ◽

Ultrasound Treatment ◽

Soluble Solids ◽

Total Phenolic

Ultrasound treatment is recognized as a potential technique for improvement in the nutritional values of fruit juices. This study was initiated with the objective of evaluating bioactive compounds and some important quality parameters of black (BC), red (RC) and white (WC) currant juices obtained from fruit mash preliminarily treated by enzymes combined with ultrasound. Individual and total phenolic content (TPC), anthocyanins, color parameters, ascorbic acid, antioxidant capacity (TEAC), juice yield, pH, titratable acidity, and soluble solids were investigated. Significant increases in the levels of TPC and antioxidant capacity of sonicated samples were observed. However, ultrasound treatment had no effect on individual phenolic compounds of juices. Sonication of mash before juice pressing did not cause any noticeable changes in ascorbic acid content. Only in the case of WC was an increase in content of vitamin C noticed. The color of juices obtained after treatment was similar to the control sample. It was demonstrated that enzymatic combined with ultrasound treatment of mash for different colored currant fruit did not have any dismissive effect and could even improve some parameters of the juice obtained.

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Cold storage of peaches cv. Aurora grown in the Zona da Mata Mineira, Minas Gerais State, Brazil

Revista CERES ◽

10.1590/s0034-737x2013000600012 ◽

2013 ◽

Vol 60 (6) ◽

pp. 833-841 ◽

Cited By ~ 2

Author(s):

Danielle Fabíola Pereira Silva ◽

Mariana Rodrigues Ribeiro ◽

José Osmar da Costa e Silva ◽

Rosana Gonçalves Pires Matias ◽

Claudio Horst Bruckner

Keyword(s):

Ascorbic Acid ◽

Mass Loss ◽

Storage Period ◽

Ascorbic Acid Content ◽

Titratable Acidity ◽

Minas Gerais ◽

Fresh Mass ◽

Soluble Solids ◽

Postharvest Quality ◽

Co2 Production

This study aimed to evaluate the postharvest behavior of peach cv. Aurora 1 harvested in the Zona da Mata region of Minas Gerais in two ripening stages and kept under different storage temperatures. Fruits on mid-ripe and fully ripe stages were stored at three temperatures: 5.6 ± 1.57 °C and 72.8 ± 3.8% RH; 10.4 ± 0.5 °C and 95.8 ± 5.5% RH; 21.04 ± 1.63 °C and 96.9 ± 2.6% RH up to 28 storage days (SD) . During storage, fruits stored at 21.04 ± 1.63 °C were evaluated every two days until 8 SD, and every four days for fruits stored at other temperatures. The harvest day was assigned as day zero. The variables evaluated were CO2 production, color of the pericarp and pulp, fresh mass loss, flesh firmness, total soluble solids, titratable acidity, contents of ascorbic acid and carotenoids. The fresh mass loss increased during storage, peaking at 5.6 °C. The reduction in ascorbic acid content was higher in fully ripe fruits at all temperatures. Mid-ripe fruits reached the end of the storage period with better quality. The temperature of 10.4 °C was the most efficient in keeping postharvest quality of peach cv. Aurora 1 harvested in the Zona da Mata region.

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Preservation of minimally processed 'aurora-1' peaches using additives

Revista Brasileira de Fruticultura ◽

10.1590/s0100-29452011000400023 ◽

2011 ◽

Vol 33 (4) ◽

pp. 1229-1239 ◽

Cited By ~ 3

Author(s):

Ramilo Nogueira Martins ◽

Ben-Hur Mattiuz ◽

Leandra Oliveira Santos ◽

Cristiane Maria Ascari Morgado ◽

Claudia Fabrino Machado Mattiuz

Keyword(s):

Ascorbic Acid ◽

Shelf Life ◽

Ascorbic Acid Content ◽

Titratable Acidity ◽

Soluble Solids ◽

Enzymatic Browning ◽

Soluble Carbohydrates ◽

Minimally Processed ◽

Minimal Processing ◽

Cavity Collapse

'Aurora-1' peaches establishes an interesting alternative as a minimally processed product, due to its characteristics like flavor, color, smell, and also because of its handling resistance. However, it has a short shelf life after a fresh-cut due to enzymatic browning and stone cavity collapse. The main purpose of this research was to test the additive with antioxidant effect to prevent browning in minimally processed 'Aurora-1' peaches. The minimal processing consists of washing, sanitizing, peelings and fruit stone extraction. After that, longitudinal cuts were made to obtain eight segments per fruit. The slices were immersed into the following treatment solutions: control (immersion in 2% ascorbic acid); 2% ascorbic acid + 2% calcium chloride; 1% sodium isoascorbate; 1% citric acid; 1% L-cysteine hydrochloride. The products were placed into rigid polystyrene trays branded MEIWA M-54, covered with 14 µm PVC film (OmnifilmTM) and kept in cold storage at 3ºC ± 2ºC and 65% RH for twelve days, and evaluated each three days. Appraised variables were appearance, soluble solids, titratable acidity, soluble carbohydrates and reducing sugars, total and soluble pectin, ascorbic acid, and peroxidase and polyphenol oxidase enzyme activity. L-cysteine gave to the minimally processed products a shelf life of twelve days, limmited by off-flavor. The treatment with ascorbic acid was efficient to maintainthe ascorbic acid content, with a shelf-life of nine days, limited by enzymatic browning.

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Productive and qualitative performance of tomato plants as a function of the application of plant growth regulators and mineral nutrients

Revista Colombiana de Ciencias Hortícolas ◽

10.17584/rcch.2018v12i2.7575 ◽

2018 ◽

Vol 12 (2) ◽

pp. 416-424

Author(s):

Marília Caixeta Sousa ◽

Luan Fernando Ormond Sobreira Rodrigues ◽

Mônica Bartira da Silva ◽

Janaina Oliveira Cruz ◽

Marla Silvia Diamante ◽

...

Keyword(s):

Ascorbic Acid ◽

Growth Regulators ◽

Foliar Application ◽

Tomato Fruit ◽

Soluble Sugars ◽

Ascorbic Acid Content ◽

Titratable Acidity ◽

Soluble Solids ◽

Antioxidant Compounds ◽

Macro And Micronutrients

The tomato fruit is rich in antioxidant compounds and has great nutritional and economic importance, annually promoting research on the nutritional and productive characteristics. The present study aimed to evaluate whether foliar application of commercial products based on growth regulators [auxin, cytokinin and gibberellin (Ax+CK+GA)], micronutrients [cobalt and molybdenum (Mi)] and mixtures of macro and micronutrients [nitrogen, boron, copper, molybdenum and zinc (Ma+Mi)], isolated and in combination, increase productivity and improve the post-harvest quality of tomato fruits (Predador F1). The experiment design used randomized blocks, with seven treatments and four repetitions, which were (T1) control; (T2) Ax+CK+GA; (T3) Ma+Mi; (T4) Mi; (T5) Ax+CK+GA + (Ma+Mi); (T6) Ax+CK+GA + Mi; and (T7) Ax+CK+GA + Mi + (Ma+Mi). The variables production, precocity, soluble solids content (SS), titratable acidity (TA), ratio (SS/TA), pH, total soluble sugars, ascorbic acid and weight loss were evaluated. The Ax+CK+GA application, isolated or in combination with Ma+Mi, promoted the precocity, and the use of isolated Ax+CK+GA and Mi improved the tomato plant productivity. The growth regulators, macro and micronutrients, isolated or in combination, increased the ascorbic acid content in the fruits.

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Effect of Polyolefin Film on the Quality of Kiwifruit with 1-MCP Treatment in Modified Atmosphere Packages

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.236-238.2769 ◽

2011 ◽

Vol 236-238 ◽

pp. 2769-2772 ◽

Cited By ~ 2

Author(s):

Xi Hong Li ◽

Cheng Jun Wang ◽

Ai Li Wang ◽

Yao Xiao ◽

Yao Tang ◽

...

Keyword(s):

Ascorbic Acid ◽

Ascorbic Acid Content ◽

Titratable Acidity ◽

Soluble Solids ◽

Modified Atmosphere ◽

Flesh Firmness ◽

Solids Concentration ◽

And Control ◽

Soluble Solids Concentration

Kiwifruit is very perishable especially at 20 °C. The quality of kiwifruit with 1-MCP treatment stored at 20 °C in modified packages was investigated. Three different polyolefin films, including 0.03mm thickness polyethylene (PE), 0.03mm and 0.05mm thickness poly (vinyl chloride) (PVC) films, were used as packaging films. Kiwifruit were fumigated with 1-MCP to delay ripeness and then packaged with the three films and control (air). O2 and CO2 concentrations in the packages, flesh firmness, soluble solids concentration (SSC), titratable acidity (TA) and ascorbic acid were measured. MAP treatments could postpone the increase of TTS, inhibit the reduction of TA, and avoid the decrease of flesh firmness. Kiwifruit packaged in 0.05mm PVC obtained 33% TA more than control fruit and approximate 25 % retention of initial firmness. However, MAP didn’t maintain more ascorbic acid content of kiwifruit. In conclusion, MAP using polyolefin films combination 1-MCP treatment, especially 0.05mm PVC, might be more effective for preserving the quality of kiwifruit.

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

International Journal of Agricultural Invention ◽

10.46492/ijai/2018.3.2.15 ◽

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.

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Influence of ripening stage on physical and chemical attributes of 'Golden' papaya fruit treated with 1-Methylcyclopropene

Bragantia ◽

10.1590/s0006-87052006000400003 ◽

2006 ◽

Vol 65 (4) ◽

pp. 553-558 ◽

Cited By ~ 5

Author(s):

Ilana Urbano Bron ◽

Angelo Pedro Jacomino ◽

Ana Luiza Pinheiro

Keyword(s):

Ascorbic Acid ◽

Skin Color ◽

Color Change ◽

Titratable Acidity ◽

Soluble Solids ◽

Ripening Stages ◽

Lower Effect ◽

Chemical Attributes ◽

Stage 1 ◽

Physical And Chemical

The 1-methylcyclopropene (1-MCP) has been used to extent postharvest life of various species. Generally, 1-MCP effectiveness decreases when applied in fruits at advanced ripening stages. The aim of this work was to verify the influence of ripening stages on some physical and chemical attributes of 'Golden' papaya treated with 1-MCP. Papayas were harvested at five ripening stages and treated with 100 nL L-1 of 1-MCP during 12 hours at 23ºC. Fruit skin color and pulp firmness were daily analyzed while soluble solids, titratable acidity and ascorbic acid were evaluated when fruit reached the consumption firmness (20 N). 1-MCP delayed firmness loss during fruit ripening of all ripening stages. The use of 1-MCP prejudices the softening of fruit harvested at stage 0 (totally green), which did not reach the consumption firmness. Although 1-MCP application at early stages was responsible for a significant increment in commercialization period, treated fruit stayed in the consumption condition for few days. When applied to a more advanced stage, 1-MCP not only increased the commercialization period, but also prolonged the period in that fruit stayed in consumption condition. 1-MCP also delayed the color change, but with a lower effect when compared to firmness retention. Ascorbic acid, titratable acidity and soluble solids were not influenced by 1-MCP application. The application of 1-MCP in fruit harvested at more advanced ripening stages could be an interesting practice since it does not prevent the ripening and still could prolong the period in which fruit stay in consumption condition.

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Bioactive compounds in different acerola fruit cultivares

Semina Ciências Agrárias ◽

10.5433/1679-0359.2017v38n4suplp2505 ◽

2017 ◽

Vol 38 (4Supl1) ◽

pp. 2505

Author(s):

Flávia Aparecida De Carvalho Mariano-Nasser ◽

Maurício Dominguez Nasser ◽

Karina Aparecida Furlaneto ◽

Juliana Arruda Ramos ◽

Rogério Lopes Vieites ◽

...

Keyword(s):

Antioxidant Activity ◽

Ascorbic Acid ◽

Phenolic Compounds ◽

Acid Content ◽

Nutritional Value ◽

Ascorbic Acid Content ◽

Titratable Acidity ◽

Soluble Solids ◽

Instrumental Color ◽

Total Antioxidant

The increased consumption of acerola in Brazil was triggered because it is considered as a functional food mainly for its high ascorbic acid content, but the fruit also has high nutritional value, high levels of phenolic compounds, total antioxidant activity, anthocyanins and carotenoids in its composition. The objective was to evaluate the chemical, physical-chemical and antioxidant activity of eight varieties of acerola tree. The acerolas used in the research were the harvest 2015, 8 varieties: BRS 235 - Apodi, Mirandópolis, Waldy - CATI 30, BRS 238 - Frutacor, Okinawa, BRS 236 - Cereja, Olivier and BRS 237 - Roxinha, from the Active Bank Germplasm APTA Regional Alta Paulista in Adamantina - SP. Avaluated the following attributes: pH, titratable acidity, soluble solids, reducing sugar, instrumental color, ascorbic acid, total phenolics, flavonoids and antioxidant activity. The design was completely randomized, 8 varieties and 3 replications of 20 fruits each. Acerola fruit of the analyzed varieties prove to be good sources of phenolic compounds and antioxidant activity, ensuring its excellent nutritional quality relative to combat free radicals. The variety BRS 236 - Cereja presents higher ascorbic acid content, antioxidant activity and phenolic compounds, and the lowest value for flavonoid, which was higher than the other cultivars, especially Olivier and Waldy CATI-30.

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Post-harvest physiology of pitaya at different ripening stages

Semina Ciências Agrárias ◽

10.5433/1679-0359.2021v42n3p1033 ◽

2021 ◽

Vol 42 (3) ◽

pp. 1033-0148

Author(s):

Maristella Martineli ◽

◽

Ariane Castricini ◽

Victor Martins Maia ◽

Camila Maida de Albuquerque Maranhão ◽

...

Keyword(s):

Ascorbic Acid ◽

Skin Color ◽

Respiratory Activity ◽

Titratable Acidity ◽

Immature Stage ◽

Soluble Solids ◽

Quality Maintenance ◽

Post Harvest ◽

Ripening Stages ◽

Physical And Chemical

Red-fleshed pitaya is an attractive fruit not due only to the color of its flesh and skin, but also the scaly shape of its skin. In addition to being a source of vitamins and minerals, it has high commercial value and represents an alternative for cultivation in semiarid regions. Information about the post-harvest physiology of pitaya, which interferes with its ripening, allows the adoption of preservation and quality-maintenance practices. This study examines the respiratory activity and post harvest alterations of pitaya picked in the commercially immature stage of ripeness, by comparing them with fruits picked fully ripe. Physical and chemical aspects of the fruits were evaluated in two harvests, in 2019 and 2020. Six days after harvest, there was an increase in respiratory activity and a change in color in both ripe and commercially immature fruits. Therefore, pitayas picked commercially immature in both harvests had an increase in respiratory activity post-harvest, with a change in skin color during storage; and six days after harvest, in the 2019 harvest, the fruits resembled those that ripened on the plant, without having their quality compromised. However, in the 2020 harvest, six days after harvest, the fruits picked fully ripe showed soluble solids/titratable acidity ratio, betacyanins and ascorbic acid contents similar to those measured in the commercially immature fruits.

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