scholarly journals Extending Shelf Life and Maintaining Quality of Tomato Fruit by Calcium Chloride, Hydrogen Peroxide, Chitosan, and Ozonated Water

Horticulturae ◽  
2021 ◽  
Vol 7 (9) ◽  
pp. 309
Author(s):  
Said A. Shehata ◽  
Said Z. Abdelrahman ◽  
Mona M. A. Megahed ◽  
Emad A. Abdeldaym ◽  
Mohamed M. El-Mogy ◽  
...  

Tomatoes are perishable fruit that makes them deteriorate rapidly during the post-harvest chain. Therefore, the effect of calcium chloride (CaCl2), chitosan, hydrogen peroxide (H2O2), and ozonated water on the storage abil\ity and quality of tomato fruit (Solanumlycopersicum L. cv. 448) stored at 10 °C for 28 d was studied. Weight loss, firmness, fruit color, total soluble solids (TSS), titratable acidity, total carotenoids, and ascorbic acid content (AsA) of treated tomato fruit were recorded. Our results revealed that all tested treatments significantly extended the shelf-life and maintained quality of tomato fruit compared to the control. Chitosan and CaCl2 were the most effective treatments in maintaining quality attributes. Furthermore, a correlation study suggested that AsA and total carotenoids played a vital role in conserving tomato fruit quality during storage. PC1 had strong positive loading for pH, appearance, firmness, AsA, TSS, carotene, fruit color (L* & b*) and a strong negative loading for lycopene content, color (a), weight loss, and color index. PC2 had high positive loading for total acidity and total sugar content.

Author(s):  
Pragya Adhikari ◽  
Nisha Paneru ◽  
Kanti Thapa ◽  
Aashish Dhakal

Background: Capsicums having high respiration, transpiration, and ethylene production rates along with high susceptibility to microbial growth deteriorate rapidly during storage leading to higher loss. The current study was conducted to assess the effects of Perforation mediated- modified atmospheric packaging (MAP) on shelf life and quality of calcium chloride treated bell pepper (Capsicum annum). Methods: For this purposed green mature fruits capsicum annum variety Indra were pretreated with calcium chloride, weighed 1kg and packed in Low-density polyethylene with no perforation (T1), LDPE with 4 perforations(T2), LDPE with 8 perforations(T3), LDPE with 12 perforations(T4), LDPE with 16 perforation(T5) and open tray (T6) and stored at ambient room temperature of laboratory. Three replications were maintained for each treatment with CRD Design and different parameters were evaluated during the study period. Result: Capsicum stored in perforated LDPE packet exhibited less weight loss, higher shelf life and higher vitamin C content compared to capsicum kept in an open tray. With less perforations weight loss was less. Moreover, LDPE with 16 perforations can be considered the best treatment because with higher numbers of pores it exhibited comparatively higher shelf life, optimum quality of fruits and also check the spoilage of the fruits as compared to all treatments.


Agronomy ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1023
Author(s):  
Olaniyi Amos Fawole ◽  
Shannon Claudia Riva ◽  
Umezuruike Linus Opara

The effect of six edible coatings were investigated on the ability to alleviate shrivel and extend shelf life of plums. Fruit were subjected to a simulated shipping period (−0.5 ± 2 °C and 90 ± 5% relative humidity (RH)) for five weeks and a subsequent shelf life period (20 ± 2 °C and 80 ± 5% RH) for 20 d. Overall, the study showed that it is possible to alleviate shrivel and also extend shelf life of plum (‘African Delight™’) at export and shelf life conditions. Amongst the edible coatings investigated, the findings in fruit coated with gum arabic and the commercial products were comparable and promising for postharvest preservation of the investigated plum cultivar. The coatings showed a moderate delay of fruit ripening, significantly reduced weight loss and shrivel development, allowing for the export of fruit over a long distance (five weeks) and up to 20 d of shelf life.


2020 ◽  
Vol 165 ◽  
pp. 01012
Author(s):  
Rong Huang ◽  
Luping Zhao ◽  
Xiaoli Wang ◽  
Zhaosheng Wang ◽  
You Li ◽  
...  

Heat treatment was used to extend the shelf life of postharvest Chaenomeles speciosa (Sweet) Nakai (C. speciosa), its effects on the quality and physiological properties of C. speciosa were studied. The results showed that heat treatment reduced the weight loss, inhibited the decline of titratable acids (TA), maintained a higher activity of peroxidase (POD) and catalase (CAT), compared to untreated C. speciosa. Treatment in hot water dipping at 50℃ for 2-4 min maintained the better quality of postharvest C. speciosa stored at 0℃ for 120 days, which indicated that heat treatment is an effective preservation technology to prolong the shelf life of C. speciosa.


HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 536f-536
Author(s):  
Arturo Cedeño Maldonado ◽  
Patrick E. Chesney ◽  
Essau Orengo

The chironja (Citrus sinensis L. Osbcek* Citrus paradisi Macf.) is a citrus hybrid of excellent quality. Attempts at commercialization has been limited by the susceptibility of the fruit to rapid rind breakdown after harvest. A study was undertaken to determine the effects of postharvest calcium chloride (CaCl2) dips and lipid waxes on rind quality of two chironja clones at two maturity stages. CaCl2 dips had no significant effect on weight loss irresponsible of clones and maturity. Waxing improved lustre of fruits. retarded aging and shrinkage and slightly inhibited degreening. Pac Rite wax was more effective than Prima Fresh wax. Clone 2-4 was less resistant than clone 3-8 to rind breakdown and made better use of the wax treatments. Mature yellow fruits had a better response to treatments than mature green fruits in retarding weight loss. Untreated fruits deteriorated rapidly after five days. Symptoms of rind breakdown were incipient in calcium treated fruits. Preharvest calcium applications and/or postharvest waxing may reduce the incidence of rind breakdown in the chimnja.


2020 ◽  
Vol 12 (9) ◽  
pp. 216
Author(s):  
E. P. da Silva ◽  
A. Figueiredo Neto ◽  
J. C. Silva ◽  
V. P. Donzeli ◽  
M. S. Costa ◽  
...  

One of the main problems faced by mango growers in the San Francisco Valley, Brazil, is caused by fungi. Among them, the genus Alternaria, Lasodiploida and Colletotrichum stand out. Sanitization methods have been studied in order to control the proliferation of these microorganisms and increase the shelf life of the fruits. Thus, two methods of sanitization were evaluated: Ozone and chlorine dioxide, in the control of fungi of the genus Alternaria and in the increase of post-harvest quality of Palmer mango fruits. We used a 3 × 5 factorial design with three treatments applied to fruits previously inoculated with fungi, five evaluation periods and five replications, totaling 75 experimental units. The treatments consisted of ozonated water at 3 ppm, chlorine dioxide at 12 ppm, and a control without sanitization. We noted the full development of fungi from the 10th day after contamination, more significantly for the control and to a lesser extent for the treatment with ozone. The methods of conservation with ozone and chlorine dioxide proved efficient in the conservation of fruits. The treatment with chlorine dioxide shows a significant efficiency in the control of penetration of fungi of the genus Alternaria inside the fruits.


2018 ◽  
Vol 6 (3) ◽  
pp. 395-406
Author(s):  
Saumya Mishra ◽  
Veeru Prakash

Tomato (Lycopersicum esculentum) although, second largest crop produced across the world, is a highly perishable commodity. Consequently, pre and postharvest treatments are critical in order to enhance the shelf-life and nutrition. Therefore, two popular Indian tomato cultivars namely Hisar Arun and Kashi Vishesh in their Mature Green, Breaker and Mature Red stages were treated with 1%, 2% and 5% Calcium chloride in order to increase their shelf life and stored at 5°C, 10°C and 15°C temperatures. The changes in non-enzymatic antioxidants namely ascorbic acid, Lycopene, Carotenoid, and Total Phenol were recorded up to 21 days of storage. Our investigation revealed a linear increase in the ascorbic acid at 5°C when treated with 5% CaCl2 (~40%) while Lycopene (45%) and carotenoids (25%) have shown comparative moderate increment at 10°C storage when treated with 1% CaCl2. Our analysis suggests that low (1%) concentration of CaCl2 is the most effective in controlling the increase of investigated non-enzymatic antioxidants in both cultivars. Moreover, hybrid cultivar tomatoes exhibited delayed deterioration compared with local type and can be recommended for long-time storage.


Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2919
Author(s):  
Zuliana Razali ◽  
Chandran Somasundram ◽  
Siti Zalifah Nurulain ◽  
Wijenthiran Kunasekaran ◽  
Matthew Raj Alias

Cherry tomatoes are climacteric fruits that have a limited shelf life. Over the years, many methods have been applied to preserve the fruit quality and safety of these fruits. In this study, a novel method of combining mucilage from dragon fruits and UV-C irradiation was carried out. Cherry tomatoes were subjected to UV-C irradiation and edible coating, both as a stand-alone and hurdle treatment. The edible coating was prepared from the mucilage of white dragon fruits. Quality parameters including color, weight loss, total soluble solids, titratable acidity, ascorbic acid, antioxidant analysis (total phenolic content and flavonoid content), and microbial analysis were measured throughout 21 days of storage at 4 °C. Results showed that the hurdle treatment extended shelf life by 21 days, reduced weight loss (0.87 ± 0.05%) and color changes (11.61 ± 0.95 ΔE), and inhibited microbes better than stand-alone treatments. Furthermore, fruits treated with the combination of UV-C and edible coating also contained higher total polyphenol content (0.132 ± 0.003 mg GAE/100 mL), total flavonoid content (13.179 ± 0.002 mg CE/100 mL), and ascorbic acid (1.07 ± 0.06 mg/100 mL). These results show that the combination of UV-C and edible coating as a hurdle treatment could be an innovative method to preserve shelf life and quality of fruits.


2013 ◽  
Vol 19 (2) ◽  
pp. 01-12
Author(s):  
F Islam ◽  
A Islam ◽  
MAZ Al Munsur ◽  
MA Rahim

The experiment was conducted to study the shelf life and quality as affected by different stages of ripening, storage temperature as well as wrapping materials fruits of guava cv. Kazi. All the studied parameters except marketability increased for a certain storage period and then declined due to the effect of stages of ripening and wrapping materials (perforated and non perforated white and black polythene bag), while in case of storage temperature, there was gradual increase of physiological weight loss, sugar content (reducing, non-reducing and total sugar) and TSS content. Marketability decreased markedly with the advancement of storage period. All stages of ripening and all wrapping materials were able to keep fruits in marketable condition for 36 days of storage period. But fruits were in better marketable condition when harvested at stage 3 (ripe, yellowish green in colour and crispy pulp) or wrapped with black non-perforated polythene. 5ºC storage temperature, was able to retain more percentage of fruits in marketable condition with longer storage duration. In case of treatment combinations, fruits harvested at stage 3, stored at 5ºC temperature with black non-perforated polythene had the highest physiological weight loss, sugar content (reducing, non-reducing and total sugar) and TSS content while stage1 fruits stored at 20ºC with no wrapping (control) had the lowest.DOI: http://dx.doi.org/10.3329/pa.v19i2.16906 Progress. Agric. 19(2): 1 - 12, 2008


2015 ◽  
Vol 4 (2) ◽  
pp. 56-61
Author(s):  
Rachel Breemer ◽  
Priscillia Picauly ◽  
Febby J. Polnaya

This study aims to determine the level of concentration of calcium chloride and vacuum air on the quality of tomatoes. Post-harvest handling of tomatoes was done by giving treatment concentration of calcium chloride solution different (0, 6, 9, 12%) and determined the best treatment then treated with vacuum air (430, 540, 650, and 760 mm Hg). Observations were made of the color, hardness and weight loss. The results showed that the use of calcium chloride with vacuum air significant effect on the value of color, hardness and changes in fruit weight. The use of calcium chloride with a concentration of 12% is the best, because it can maintain the color values of 6.02%, 7.76% hardness, and can press the fruit weight loss of 1.04%. The level of vacuum air 430 mm Hg can maintain the color values of 6.79 and can reduce fruit weight loss of 2.95%.


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