scholarly journals Effect of Postharvest Application of Aloe Vera Gel on Shelf Life, Activities of Anti-Oxidative Enzymes, and Quality of ‘Gola’ Guava Fruit

Foods ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1361
Author(s):  
Muhammad Adil Rehman ◽  
Muhammad Rafique Asi ◽  
Amjad Hameed ◽  
Leslie D. Bourquin
Keyword(s):  
Ascorbic Acid ◽  
Shelf Life ◽  
Aloe Vera ◽  
Soluble Solids ◽  
Life Extension ◽  
Oxidative Enzymes ◽  
Postharvest Quality ◽  
Ambient Conditions ◽  
Guava Fruit

Guava is an important climacteric fruits in terms of taste and aroma, which contains various vital nutrients such as minerals, carotenoids, ascorbic acid, and polyphenols. At ambient conditions, it exhibits a short shelf life, which makes it difficult for marketing and subsequent storage. Therefore, it is necessary to develop procedures to extend its shelf life and conserve quality. For this purpose, an aloe vera (AV) gel coating was assessed for its potential to enhance the shelf life of guava fruits. Guava fruits coated with AV gels (0, 20, 40, 60 and 80%, v/v) were evaluated for postharvest shelf life extension, changes in quality attributes, anti-oxidative activities, and flavonoid content when stored at ambient conditions (23 ± 2 °C and 70–75% relative humidity) for 12 days. The AV gel-treated fruits showed reduced increments in total sugar, malondialdehyde, and total carotene contents compared to untreated controls. AV gel-treated fruits exhibited higher contents of ascorbic acid, flavonoids (quercetin and rutin), and total phenolics in comparison to control fruits. Moreover, AV gel-treated fruits displayed greater activities of superoxide dismutase, catalase, and ascorbate peroxidase, along with higher antioxidant capacity and higher levels of total soluble solids, than untreated fruits. These results demonstrate that AV gel coating, especially at high concentrations, can be considered an eco-friendly and non-chemical substitute treatment for maintaining the postharvest quality of guava fruit.

scholarly journals Effect of neem leaf and banana pulp extracts on shelf life and quality of mango (Mangifera indica L.)

2018 ◽  
Vol 16 (3) ◽  
pp. 343-350 ◽  
Author(s):  
Rabeya Akter Sarmin ◽  
Shamim Ahmed Kamal Uddin Khan ◽  
Kanij Fatema ◽  
Sabiha Sultana
Keyword(s):  
Shelf Life ◽  
Disease Severity ◽  
Leaf Extract ◽  
Disease Incidence ◽  
Mangifera Indica ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Ambient Conditions ◽  
Neem Leaf Extract

The study was carried out to minimize the postharvest loses and extend shelf life of mango fruitby maintaining physico-chemical properties. The variety selected for the study was “Amrapali”. Freshly harvested mango was treated with different concentrations (20% and 40%) of neem leaf and banana pulp extract alone or in combination. Untreated mango was considered as control. All treated and untreated mango was kept into paper cartons at room condition. The treated fruits showed significant differences in case of total soluble solids content, titratable acidity, vitamin C, disease incidence, disease severity and shelf life in comparison to control fruits. Among the treatments, T2 (neem leaf extract at 20%) and T5 (neem leaf extract 40% + banana pulp extract 40%) treatments showed longer shelf life (9.92 and 10.25 days, respectively), slower changes in color (score 2.77 and 2.93, respectively) and firmness (score 2.67 and 2.77, respectively); less disease severity (score 2.93 and 3.57, respectively), disease incidence (46.67% and 60.00%) and lower loss in weight (38.04% and 35.17%, respectively) at 9 DAT (Days after treatment). On the other hand, total soluble solid was highest in T3 (neem leaf extract 40%) treated fruitswith18.73% more Brix at 13 DAT in comparison to control and other treatments. The effectiveness of the treatment T5 (neem leaf extract 40% + banana pulp extract 40%) was meaningful which could be recommended for maintenance of postharvest quality of mango stored in ambient conditions. J. Bangladesh Agril. Univ. 16(3): 343–350, December 2018

scholarly journals Impact of Chitosan and Alginate Based Edible Coating on Shelf Life and Postharvest Quality of Kinnow Mandarin

2021 ◽  
pp. 36-47
Author(s):  
Himanshu Puri ◽  
Arun Kumar
Keyword(s):  
Ascorbic Acid ◽  
Shelf Life ◽  
Principal Component ◽  
Quality Parameters ◽  
Edible Coating ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Fruit Samples ◽  
Kinnow Mandarin

The Kinnow mandarin (Citrus nobilis x Citrus deliciosa) was highly perishable citrus fruit, after harvest the quality of Kinnow fruits undergoes rapid changes due to the sharpen rate of ripening, respiration and transpiration. Edible coating formulation of chitosan (0.5%, 1%, and 1.5%), alginate (0.5%, 1%, and 1.5%), composite formulation of chitosan and alginate (0.5% chitosan+0.5% alginate & 1% chitosan+0.5% alginate) were evaluated in relation to enhancing and improving shelf life and postharvest quality of Kinnow respectively. Kinnow fruit shelf life efficiency was evaluated on the basis of postharvest quality parameters like weight loss percent, firmness, pH, total soluble solids, total acidity and ascorbic acid from 6th to 24th day during incubation at ambient room temperature (20-25°C). The results signifies that the Kinnow fruit coated with alginate 1% have higher shelf life efficiency up to 24 days; however chitosan 1% coated fruits shown to have higher ascorbic acid retention as compared to untreated Kinnow fruits. The principal component analysis of different quality parameters for studied treatment shows 65.7 % variation in component 1 and 16.6% variation in component 2. PCA plot elucidate that coated fruit samples were high positive values and completely different from untreated samples.

scholarly journals Evaluation of postharvest quality of edible coated mandarin at ambient storage

2018 ◽  
Vol 8 (1) ◽  
pp. 18-25 ◽  
Author(s):  
TAA Nasrin ◽  
MN Islam ◽  
MA Rahman ◽  
MS Arfin ◽  
MA Ullah
Keyword(s):  
Weight Loss ◽  
Ascorbic Acid ◽  
Respiration Rate ◽  
Liquid Paraffin ◽  
Coconut Oil ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Ambient Storage ◽  
Fruit Surface

An experiment was conducted to assess the influence of edible coatings on postharvest quality of mandarin during 20 days of ambient storage. Sorted fruits were washed; fruit surface water was removed and then coated with 100% liquid paraffin wax, 0.5% chitosan, 1.0% chitosan, 1.5% chitosan, and 100% coconut oil. After coating, fruit surface was air dried and kept at ambient condition (25±3 °C, 60–70% RH) and analyzed periodically for weight loss, respiration rate, firmness, decay incidence, TSS, pH, ascorbic acid content, and sensory properties. The results revealed that coconut oil had immense effect on the reduction of the weight loss and respiration rate and preserved firmness, total soluble solids, ascorbic acid, total sugar and reducing sugar and no incidence of moulds & their growth was found up to 16 days of storage.Int. J. Agril. Res. Innov. & Tech. 8 (1): 18-25, June, 2018

Melatonin treatment improves the shelf-life and postharvest quality of table grape (Vitis labrusca L. cv. ‘Fengzao’)

2020 ◽  
Vol 10 (4) ◽  
pp. 665-676
Author(s):  
Ya-Dan Sun ◽  
Da-Long Guo ◽  
Sheng-Di Yang ◽  
He-Cheng Zhang ◽  
Lei-Lei Wang ◽  
...  
Keyword(s):  
Dna Methylation ◽  
Shelf Life ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Vitis Labrusca ◽  
Physiological Indicators ◽  
Treatment Groups ◽  
Table Grapes

BACKGROUND: Melatonin (MT) is an endogenous indoleamine that regulates senescence progression and stress response in plants. OBJECTIVE: Here, we investigated the effect of MT on the shelf-life and postharvest quality of table grapes (Vitis labrusca L. cv. ‘Fengzao’). METHODS: After harvesting, ‘Fengzao’ grapes were immersed in MT solution at various concentrations (0 [as control], 0.05, 0.1, 0.5 and 1.0 mM for 2 h and stored at 24±1 for 15 days. Physiological indicators including weight loss rate, firmness, contents of total soluble solids (TSSs), ascorbic acid (AsA), malondialdehyde (MDA), hydrogen peroxide (H2O2), and activities of catalase (CAT), ascorbate peroxidase (APX), and superoxide dismutase (SOD) were investigated. Additionally, the DNA methylation rate of ‘Fengzao’ grapes were measured using the methylation-sensitive amplification polymorphism (MSAP) technique. RESULTS: Application of MT effectively delayed grape senescence in all treatment groups compared with the control, with the longest delay observed in the 0.5 mM treatment. Additionally, the rate of DNA methylation decreased in all the 0.5 mM MT treatment groups, indicating a potential role of MT in demethylation. CONCLUSIONS: Our results suggest that the exogenous application of MT can delay the senescence of grapes during postharvest.

Aloe vera Bio-Extract Coating Results Better Shelf Life and Fruit Quality Attributes in Pomegranate

2019 ◽  
pp. 1-9
Author(s):  
Suchismita Jena ◽  
Ramesh K. Goyal ◽  
Anil K. Godhara ◽  
Abhilash Mishra
Keyword(s):  
Ascorbic Acid ◽  
Shelf Life ◽  
Fruit Quality ◽  
Untreated Control ◽  
Aloe Vera ◽  
Storage Period ◽  
Quality Attributes ◽  
Soluble Solids ◽  
Acid Ratio ◽  
Juice Content

Aims:  To evaluate the potentiality of bio-extract coatings for achieving extended shelf life with enhance fruit quality attributes in pomegranate under ambient storage condition.  Study Design:  The lab experiment conducted in complete randomized design with three repetitions on Mridula cultivar of pomegranate.     Place and Duration of Study:  The experiment was conducted during September 2016 at department of fruit science, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India. Methodology: Pomegranate freshly harvested fruits were coated with three bio-extracts coatings viz. Aloe vera (50,75 and 100%), ginger (1,2 and 3%) and mints (10,20 and 30%). The coated fruits were stored at ambient room condition in corrugated fiber board boxes for twelve days.  Periodically effects of bio-extract coatings, storage period and their interaction were observed for physiological loss in weight, decay loss, juice content, TSS: acid ratio, ascorbic acid content and anthocyanin content.    Results: Surface coating with Aloe vera extract 100% was found most effective in reducing physiological loss in weight (50% less reduction as compared to untreated control) whereas ginger extract 3% in reducing the decay loss of fruits (9.65%) as compared to untreated control (23.36%). Among various treatments, the coating of pomegranate fruits with Aloe vera extract 100% resulted in lowest total soluble solids to acid ratio (32.17%) and significantly highest content of juice (47.17%), anthocyanin (13.98 mg/100 g) and ascorbic acid (12.82 mg/100 g) of the fruits along with highest organoleptic rating. The quality attributes viz. total soluble solids to acid ratio, anthocyanin of fruits increased with progression of storage period, while juice content and ascorbic acid decreased. Conclusion: Bio-extract coating of Aloe vera (100%) substantially improved the shelf life with retaining better fruit quality attributes under ambient conditions and has the potential to substitute the prevalent chemical coatings for pomegranate.  

scholarly journals Qualitative attributes and postharvest conservation of green ears of maize grown on different cover crops in organic no-till system

Revista CERES ◽  
2016 ◽  
Vol 63 (4) ◽  
pp. 532-537 ◽  
Author(s):  
Luiz Fernando Favarato ◽  
Jacimar Luiz de Souza ◽  
João Carlos Cardoso Galvão ◽  
Caetano Marciano de Souza ◽  
José Mauro de Souza Balbino ◽  
...  
Keyword(s):  
Shelf Life ◽  
Cover Crops ◽  
Block Design ◽  
Climatic Conditions ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
White Lupin ◽  
No Till ◽  
Grain Moisture

ABSTRACT Postharvest quality of sweet maize varies depending on the type of seed, soil, quality of fertilizer, climatic conditions, and stage of maturation. This study aimed to evaluate the post-harvest quality and shelf life of green ears of maize grown on three soil covers in organic no-till sytem. The study was conducted in the municipality of Domingos Martins, ES (20° 22'16.91" S and 41° 03' 41.83" W). The experiment was arranged in a randomized block design with six replications and five treatments, consisting of three cover crops in organic no-till system: black-oat straw, white lupin, oat/lupin intercrop and two systems, organic and conventional, without straw. Maize double hybrid AG-1051 was sown in a spacing of 1.00 x 0.20 m. The variables evaluated included relative percentage of grain, straw and cob, pH, titratable acidity, soluble solids, grain moisture and shelf life. The use of different straws in the organic no-till system does not influence the postharvest quality of green ears. Ears packed in polystyrene trays with plastic film are suitable for marketing until the fifth day of storage at room temperature.

scholarly journals Postharvest Quality of Cherry Tomatoes Coated with Mucilage from Dragon Fruit and Irradiated with UV-C

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2919
Author(s):  
Zuliana Razali ◽  
Chandran Somasundram ◽  
Siti Zalifah Nurulain ◽  
Wijenthiran Kunasekaran ◽  
Matthew Raj Alias
Keyword(s):  
Weight Loss ◽  
Ascorbic Acid ◽  
Shelf Life ◽  
Edible Coating ◽  
Postharvest Quality ◽  
Total Phenolic ◽  
Flavonoid Content ◽  
Uv C ◽  
Cherry Tomatoes

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.

scholarly journals 1-Methylcyclopropene on Fruit Quality of Se-Enriched Grape (Vitis vinifera L.) during Shelf Life Period

Agronomy ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1411 ◽  
Author(s):  
Shuaimeng Zhu ◽  
Yinli Liang ◽  
Lan Mu ◽  
Xiaojuan An ◽  
Hongfei Yin
Keyword(s):  
Shelf Life ◽  
Fruit Quality ◽  
Soluble Sugars ◽  
Fertilizer Application ◽  
Table Grape ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Life Stages ◽  
Grape Berries

Selenium (Se) deficiency in humans could be improved by biofortification of food with selenium, 1-Methylcyclopropene (1-MCP) treatment is beneficial for the non-sulfur storage of fresh fruit. This study investigated fruit quality of table grape (Hutai No.8) with foliar Se fertilizer at maturity, and fruit quality changes of table grape during shelf life stages that caused by postharvest 1-MCP treatment in 2016 and 2017. The results showed that foliar Se fertilizer application significantly increased Se content in grape berries at maturity, and the raised rate were 43.09% and 33.24% compared to that of control in 2016 and 2017 respectively, meanwhile it increased the nutritional components in grape berries, including soluble proteins, soluble sugars, Vitamin C, total soluble solids, proanthocyanidin content and so on, and decreased the titratable acidity content. During shelf life stages, 1-MCP application decreased the decay number of grapes, and SE + 1-MCP treatment had the most excellent fruit quality among all treatments in two consecutive vintages. In conclusion, Se fertilizer application could increase Se content in grape berries, also improved the fruit nutritional and health care values at maturity. 1-MCP application could delay the process of ripening and senescence for Se-enriched grape and maintaining the postharvest quality of table grape during shelf life stages, it allows us to market the fruit at a more advanced ripening stage without quality loss.

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