scholarly journals FRUIT ORIENTATION ALTERS THE QUALITY OF LITCHI (LITCHI CHINENSIS SONN.) UNDER THE AGRO-CLIMATIC CONDITIONS OF EASTERN INDIA

2021 ◽  
pp. 17-19
Author(s):  
NARAYAN LAL ◽  
VISHAL NATH
Keyword(s):  
Ascorbic Acid ◽  
Ascorbic Acid Content ◽  
Climatic Conditions ◽  
Lower Half ◽  
Total Acidity ◽  
Eastern India ◽  
Total Sugars ◽  
Chemical Attributes ◽  
Physical And Chemical

Objective: The experiment was conducted on ten litchi cultivars, namely; Purbi, Bedana, Lal Bombay, Mandaraji, Calcuttia, Late Bedana, Trikolia, Dehradoon, Dehrarose, and Seedless No. 2 to assess the physical and chemical composition of fruit as affected by fruit orientation on the tree. Methods: Fruits were picked both from the lower and upper half portion of the tree at fully ripened stage and physio-chemical attributes were analyzed. Results: The result indicated that fruits at lower half portion were not only heavy in weight but also had more percentage of total acidity. However, stone weight, ascorbic acid content, and total sugars were found to be more in fruits collected from the upper half portion of the tree. Conclusion: It can be suggested that picking should be started from those fruits which are positioned at the lower half portion of the tree to collect fruits of superior quality.

Agrobiological assessment of adaptive plum varieties in the conditions of the Orenburg Urals

2021 ◽  
Vol 67 ◽  
pp. 50-59
Author(s):  
V. R. Bashirova ◽  
E. M. Feschenko
Keyword(s):  
Ascorbic Acid ◽  
Water Regime ◽  
Ascorbic Acid Content ◽  
Climatic Conditions ◽  
Productivity Index ◽  
Winter Period ◽  
Total Acidity ◽  
Adverse Weather ◽  
Plum Varieties ◽  
Horticultural Research

The article presents data of agrobiological evaluation (2018-2021) of plum collection samples of Orenburg branch of Federal Horticultural Research Center for Breeding, Agrotechnology and Nursery. The research was aimed at identifying varieties and forms with the best characteristics of winter hardiness, drought resistance, productivity. In the Orenburg Urals, breeding development measures aimed at increasing the adaptability and productivity of plum plantations are appropriate. According to the results of a comprehensive assessment of productivity and adaptability, promising plum varieties have been identified. The best adaptability to adverse weather and climatic conditions of the winter period was characteristic of plum varieties Kuyashskaya and Vega. According to the weight of the fruit, Antonina and Kuyashskaya varieties (24,26 g and 23,19 g) stood out as promising plum varieties. The highest productivity index was found in the plum varieties Svetlana (12,46 kg) and Nadezhda (11,48 kg), the yield of these varieties was 5 and 5,4 t/ha, respectively. The Khabarovsk early and Svetlana varieties were characterized by the greatest accumulation of dry soluble substances –17,93 and 16,72 %. The highest total acidity (1,78 %) and the ascorbic acid content (9,46 mg%) were marked in the Svetlana variety. Characteristics of the water regime were the best in forms 12-7, 11-10 and varieties Antonina, Kuyashskaya. The identified adaptive plum varieties can be recommended for the expansion of the zoned assortment on the territory of the Orenburg Urals.

scholarly journals Nutritional quality of jamun-bael spread during storage

2021 ◽  
Vol 17 (2) ◽  
pp. 644-649
Author(s):  
Fozia Hameed ◽  
Neeraj Gupta
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Nutritional Quality ◽  
Reducing Sugars ◽  
Chemical Constituents ◽  
Storage Period ◽  
Ascorbic Acid Content ◽  
Titratable Acidity ◽  
Total Sugars

The present study was conducted to standardize appropriate combinations of jamun-bael blends for preparation of spread and to evaluate the changes in moisture, TSS, reducing sugars, total sugars, titratable acidity and ascorbic acid content of the developed product during storage. Spread prepared from 100:0, 90:10, 80:20, 70:30, 60:40, 50:50, 40:60, 30:70, 20:80, 10:90 and 0:100 ratio of jamun-bael pulp were analyzed for changes in chemical constituents at two months interval during storage period of six months. TSS, total sugars, reducing sugars and acidity increased while as moisture and ascorbic acid decreased in spread during storage.

scholarly journals ВПЛИВ ЕСФОНУ НА БІОХІМІЧНІ ЗМІНИ В ПЕРІОД ДОЗРІВАННЯ ЯГІД, УРОЖАЙНІСТЬ ТА ЯКІСТЬ ПЛОДІВ АҐРУСУ

2019 ◽  
Vol 77 (3) ◽  
pp. 65-70
Author(s):  
Н. S. Shataliuk ◽  
V. G. Kuriata
Keyword(s):  
Ascorbic Acid ◽  
Crop Production ◽  
Starch Content ◽  
Sugar Content ◽  
Control Sample ◽  
Statistical Processing ◽  
Ascorbic Acid Content ◽  
Experimental Sample ◽  
Total Acidity

The effect of pre-harvest treatment of gooseberry bushes (GROSSULARIA RECLINAT (L.) MILL) of cv. Mashenka with a 0.3% aqueous solution of ethylene product on the yield and quality characteristics of berries, quantitative changes in the content of structural polysaccharides during ripening were studied. The experiments were carried out in the field from 2015 to 2017. The experimental sites were randomly chosen, there were five bushes in a row, the repetition of the field experiment was fivefold. The plants were treated with 0.3% aqueous esphone two weeks prior to berry harvesting using an OP-2 backpack. The berries under analysis were selected every four days after treatment with the preparation. The polysaccharide content was determined on a fixed material. The berries were fixed in the field with liquid nitrogen, dried in a drying oven at 70º C to air - dry state. The determination of cellulose and pectin content was carried out by weight method, hemicellulose and non-structural carbohydrates (sugars and starch) in gooseberry fruits were carried out by iodometric method. To evaluate the quality of the berries, their analysis for total acidity was performed by potentiometric titration, ascorbic acid was determined using potassium hexacyanoferrate. The analytical replicability of the studies is fivefold. Statistical processing of the results was performed using the computer program ‘Statistica-6’. The significance of the difference between the control and experiment indicators was determined by Student's t-test. It is found out that on the fourth, eighth and twelfth days, the content of reducing sugars, sucrose and their amounts in the berries treated with ethyleneproducer plants was higher than in the control sample. A more intense decrease in the total acidity of the berries of the experimental sample was observed, while the ascorbic acid content did not change significantly. A higher amylase activity in berries due to ethylene products during ripening was also established, resulting in a faster decrease in the starch content in the berries and an increase in the sugar content. Pre-harvesting of gooseberry with ethylene product esphone leads to increased accumulation of pectic substances in the products, a more intensive hydrolysis of structural polysaccharides in comparison with the control sample, which serves as an indicator of more intense maceration of fetal tissues. The use of pre-harvest processing of gooseberry with ethylene product esphone has led to increased yields and higher quality of gooseberry crop production and has many prospects for the development of mechanized harvesting technologies.

scholarly journals Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dalila Lopes da Silva ◽  
Renato de Mello Prado ◽  
Luis Felipe Lata Tenesaca ◽  
José Lucas Farias da Silva ◽  
Ben-Hur Mattiuz
Keyword(s):  
Ascorbic Acid ◽  
Nutrient Solution ◽  
Acid Content ◽  
Dry Matter ◽  
Ascorbic Acid Content ◽  
Calcium Deficiency ◽  
Ca Deficiency ◽  
Leaf Water Loss ◽  
Nutrient Solutions

AbstractCalcium (Ca) deficiency in cabbage plants induces oxidative damage, hampering growth and decreasing quality, however, it is hypothesized that silicon (Si) added to the nutrient solution may alleviate crop losses. Therefore, this study aims at evaluating whether silicon supplied in the nutrient solution reduces, in fact, the calcium deficiency effects on cabbage plants. In a greenhouse, cabbage plants were grown using nutrient solutions with Ca sufficiency and Ca deficiency (5 mM) without and with added silicon (2.5 mM), arranged as a 2 × 2 factorial in randomized blocks, with five replications. At 91 days after transplanting, the plants were harvested for biological evaluations. In the treatment without added Si, Ca deficiency promoted oxidative stress, low antioxidant content, decreased dry matter, and lower quality leaf. On the other hand, added Si attenuated Ca deficiency in cabbage by decreasing cell extravasation while increasing both ascorbic acid content and fresh and dry matter, providing firmer leaves due to diminished leaf water loss after harvesting. We highlighted the agronomic importance of Si added to the nutrient solution, especially in crops at risk of Ca deficiency.

scholarly journals Physico Chemical Analysis of Sapota (Manilkara zapota) Coated by Edible Aloe Vera Gel

2015 ◽  
Vol 3 (1) ◽  
pp. 20-25 ◽  
Author(s):  
N. Padmaja ◽  
S. John Don Bosco ◽  
J. Sudhakara Rao
Keyword(s):  
Chemical Analysis ◽  
Aloe Vera ◽  
Ascorbic Acid Content ◽  
Chemical Characteristics ◽  
Manilkara Zapota ◽  
Aloe Vera Gel ◽  
Physico Chemical ◽  
Dramatic Decline ◽  
Physical And Chemical

The physical and chemical characteristics of the fruit have immense significance as they ultimately affect the quality of processed productsprepared from them. Over ripening of Sapota (Manilkara zapota) fruits at the post-harvest stage usually results in dramatic decline in quality.In the present study, physico chemical analysis (which includes Weight loss, Colour, Texture, TSS, pH, TA and Ascorbic acid content) ofedible Aloe vera gel coated Sapota fruits packed in LDPE and stored at 15 ± 2? were studied at regular intervals of 5 days i.e., 0th,5th, 10th,15thand 20th days. The dip treatment of Aloe vera gel coating 1:2, 7 minutes had best retained the physico chemical characteristics than the othertreatments performed and was found to be the most effective treatment in maintaining the fruit quality attributes along with the shelf lifeextension of about 20 days.DOI: http://dx.doi.org/10.3126/ijasbt.v3i1.11703 Int J Appl Sci Biotechnol, Vol. 3(1): 20-25      

scholarly journals Combined application of methyl salicylate and L-arginine alleviates chilling injury, potentiates antioxidant system and maintains quality of sweet pepper (Capsicum Annum L.) fruits cv. ‘Winner’

2021 ◽  
pp. 68-75
Author(s):  
Nida Akram ◽  
Mahmood Ul Hasan ◽  
Rana Naveed Ur Rehman ◽  
Rana Muhammad Ateeq Ahmad ◽  
Zeeshan Ahmed ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Acid Content ◽  
Methyl Salicylate ◽  
Disease Incidence ◽  
Chilling Injury ◽  
Ascorbic Acid Content ◽  
Sweet Pepper ◽  
Total Phenolic ◽  
Ion Leakage

Chilling injury is the critical issue in sweet pepper fruit under low temperature storage. Present work was aimed to evaluate the effect of different concentration of methyl salicylate (MS) and L-arginine (Arg) on chilling injury and overall quality of sweet pepper fruits cv. ‘Winner’. The treatments were T1 = Control, T2 = 0.01mM MS, T3 = 0.05 mM MS, T4 = 1mM Arg, T5 = 1.5mM Arg and T6 = 0.01mM MS+1.5mM Arg. After respective treatment (for 10 min) fruits were kept at 5 ± 1 ◦C with 85-90 % RH for 28+2 days of storage. Physical, biochemical, and phytochemical parameters were studied at 7 days interval followed by two days of reconditioning at ambient conditions (25 ± 2 °C). On last removal (28+2days), sweet pepper fruits treated with combined MS and Arg treatment (T6) showed highly significant results in lower fruit weight loss (8.3%), maintained fruit colour (0.3 score) and firmness (13.4N), and reduced wrinkling (2 score), disease incidence (0.4 score), ion leakage (45.4%), alleviated chilling injury (1.7 score), retained total antioxidants (49.1%) and total phenolic content (74.4 mg 100 g-1 GAE FW) as compared to control. In addition, the ascorbic acid content was observed higher in all treatments in comparison with untreated control fruits. In conclusion, MS and Arg combine treatment improved storage potential with reduced chilling injury by maintaining higher total phenolic concentrations, ascorbic acid content and total antioxidants in terms of DPPH radical scavenging activities, and markedly maintained overall quality of sweet pepper under cold storage condition at 5 °C for 28 days.

scholarly journals EFFECT OF SOIL AND GROWTH CLIMATIC CONDITIONS ON VITAMIN CONTENT OF RED CLOVER (Trifolium pratense L.)

2020 ◽  
Vol 8 (Spl-2-AABAS) ◽  
pp. S292-S297
Author(s):  
Alexander Leonidovich Mikhailov ◽  
◽  
Olga Arnoldovna Timofeeva ◽  
Uliana Aleksandrovna Ogorodnova ◽  
Nikita Sergeevich Stepanov ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Vitamin A ◽  
Trifolium Pratense ◽  
Red Clover ◽  
Ascorbic Acid Content ◽  
Southern Taiga ◽  
Climatic Conditions ◽  
Deciduous Forests ◽  
Vitamin Content ◽  
Trifolium Pratense L

The current study was conducted to estimate the effect of soil and growth climatic conditions on the vitamin content of red clover (Trifolium pratense L.). Further, in vitamins, the content of ascorbic acid and vitamin A (provitamin – carotene) was estimated from the aerial parts of the clover. Ascorbic acid is a powerful antioxidant, antiviral, and antitumor vitamin while vitamin A is a useful vitamin for eyesight. Ascorbic acid content in the red clover tissues was determining potassium hexacyanoferrate method while Provitamin A and total carotenoid was estimated by spectrophotometric method. Results of the study revealed that the highest content of vitamins C was found in the plant grown under the climatic conditions of the southern taiga subzone of the Atninsky and in the zone of deciduous forests (Apastovsky and Kamsko-Ustinsky districts) while the plant is grown under the coniferous-deciduous forests (Zelenodolsky district) climatic conditions are a rich source of vitamin A. From the results of the study, it can conclude the soil and growing conditions especially temperature regime and soil moisture affected the level of vitamins in red clover.

scholarly journals Parâmetros físico-químicos de polpas de fruta produzidas na cidade de Petrolina – PE

2015 ◽  
Vol 10 (4) ◽  
pp. 01 ◽  
Author(s):  
A. C. Honorato ◽  
C. B. R. Dias ◽  
E. B. Souza ◽  
I. R. B. Carvalho ◽  
K. S. M. Sousa
Keyword(s):  
Ascorbic Acid ◽  
Physicochemical Parameters ◽  
Titratable Acidity ◽  
Soluble Solids ◽  
Chemical Characteristics ◽  
Fruit Pulp ◽  
Total Titratable Acidity ◽  
Physical And Chemical ◽  
The City

<p>Este trabalho teve como objetivo avaliar os parâmetros físico-químicos de polpas de fruta produzidas e comercializadas na cidade de Petrolina-PE, tendo como referência a Instrução Normativa nº 1, de 7 jan. 2000, do Ministério da Agricultura que define as características físicas e químicas estabelecendo limites mínimos e máximos específicos para cada polpa de fruta. Foram avaliadas duas marcas (1 e 2) de polpas de abacaxi, cacau, caju, graviola, maracujá e umbu, analisadas quanto aos parâmetros de pH, sólidos solúveis totais (SST), acidez total titulável (ATT), ácido ascórbico, relação SST/ATT e sólidos totais. Os resultados permitem inferir que a marca 2 apresentou qualidade superior na maioria dos parâmetros avaliados quando comparado com a marca 1. Entretanto para alguns sabores de polpa as duas marcas não atenderam os valores padrões. Entre as polpas o único sabor que apresentou os padrões exigidos foi a polpa de caju em ambas as marcas, e a que apresentou resultado de pior qualidade diante dos padrões foi a polpa de maracujá principalmente da marca 1. Dessa forma constata-se que há grandes variações entre as marcas, e entre alguns parâmetros, o que compromete a qualidade das polpas, prejudicando assim o consumidor.</p><p align="center"><strong><em>Physicochemical parameters of fruit pulps produced in Petrolina – PE</em></strong></p><p><strong>Abstract</strong><strong>: </strong>This study aimed to evaluate the physicochemical parameters of fruit pulps produced and marketed in the city of Petrolina-PE, with reference to the Instruction Nº 1 of 7 January 2000 of the Ministry of Agriculture, which defines the physical and chemical characteristics setting minimum and maximum limits specific to each fruit pulp. We evaluated two brands (1 and 2) of pineapple, cocoa, cashew, soursop, passion and umbu fruit pulp, analyzed for pH, total soluble solids (TSS), total titratable acidity (TTA), ascorbic acid, TSS / TTA and total solids parameters. Results show that the brand 2 showed superior in most evaluated parameters when compared to the brand 1. However, for some pulp flavors of both brands did not reached the standards values. Among the pulps, the only flavor that presented the required standards was the cashew pulp in both brands, and presented the results of lower quality on the standards was the passion fruit pulp mainly brand 1. Thus, it appears that there are great variations between brands and between some parameters, which compromises the quality of the pulp, thus impairing the consumer.</p>

scholarly journals Harvest Season and Genotype Affect Head Quality and Shelf-Life of Ready-to-Use Broccoli

Agronomy ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 527 ◽  
Author(s):  
Giulia Conversa ◽  
Corrado Lazzizera ◽  
Anna Bonasia ◽  
Antonio Elia
Keyword(s):  
Ascorbic Acid ◽  
Dehydroascorbic Acid ◽  
Visual Quality ◽  
Dry Weight ◽  
Climatic Conditions ◽  
Total Phenol ◽  
Slight Reduction ◽  
Post Harvest ◽  
Dry Matter Concentration

Pre-harvest climatic conditions and genotype may have important effects on head quality and post-harvest performance of fresh-cut broccoli. The present work evaluates the effect of the growing cycle (summer–autumn (SA), winter (W), winter–spring (WS), and spring (S)) and genotype on qualitative (dry matter, concentration of chlorophylls, carotenoids, and color) and antioxidative (ascorbic acid, dehydroascorbic acid, total phenol concentrations, and antioxidant capacity) traits of broccoli heads and minimally processed florets. The WS raw product showed the best color indices (L* = 38.6, C* = 9.3 and h° = 123.8) as well as the highest chlorophyll (0.23 µg mg−1 fresh weight) but the lowest total phenol concentration (5.5 µg mg−1 dry weight - DW), whereas the ascorbic acid level (2.3 µg mg−1 DW) was comparable to or lower than that the other growing cycles. The WS florets confirmed their best visual quality, even showing an improved total phenol level after 14 days of cold storage. The climatic conditions experienced by broccoli plants grown in SA, W, and S periods were stressful as they resulted in a slight reduction in the visual quality of the heads, though only the SA florets showed a distinctive decay during storage. The lower post-harvest performance of SA grown broccoli was confirmed in all the tested cultivars, despite ‘Naxos’ seeming more tolerant. On the contrary, the greatest content of ascorbic acid (3.2 µg mg−1 DW) in the W heads and of phenols (11.1 µg mg−1 DW) in S heads was maintained during storage, thus preserving floret color.

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

2011 ◽  
Vol 236-238 ◽  
pp. 2769-2772 ◽  
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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