Ascorbic acid incorporated with walnut green husk extract for preserving the postharvest quality of cold storage fresh walnut kernels

2019 ◽  
Vol 245 ◽  
pp. 193-199 ◽  
Author(s):  
Asaad Habibie ◽  
Navid Yazdani ◽  
Mahmoud Koushesh Saba ◽  
Kourosh Vahdati
Keyword(s):  
Ascorbic Acid ◽  
Cold Storage ◽  
Postharvest Quality

scholarly journals Effect of Gum Arabic and Starch-Based Coating and Different Polyliners on Postharvest Quality Attributes of Whole Pomegranate Fruit

Processes ◽  
2022 ◽  
Vol 10 (1) ◽  
pp. 164
Author(s):  
Tatenda Gift Kawhena ◽  
Umezuruike Linus Opara ◽  
Olaniyi Amos Fawole
Keyword(s):  
Weight Loss ◽  
Effective Treatment ◽  
Cold Storage ◽  
High Density Polyethylene ◽  
Gum Arabic ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Respiration Rates ◽  
Pomegranate Fruit

This study investigated the effect of gum Arabic and starch-based coating and two polyliners (Liner 1-micro-perforated Xtend® and Liner 2-macro-perforated high-density polyethylene) on whole ‘Wonderful’ pomegranate fruit during cold storage (5 ± 1 °C and 95 ± 2% RH). Uncoated (UC) and coated (GAMS) fruit were packaged into standard open top ventilated cartons (dimensions: 0.40 m long, 0.30 m wide and 0.12 m high) with (GAMS + Liner 1, GAMS + Liner 2, UC + Liner 1 and UC + Liner 2) or without (UC and GAMS) polyliners. After 42 d, treatment GAMS + Liner 1 recorded the least weight loss (4.82%), whilst GAMS recorded lower (8.77%) weight loss than UC + Liner 2 (10.07%). The highest (24.74 mLCO2 kg−1h−1) and lowest (13.14 mLCO2 kg−1h−1) respiration rates were detected in UC and GAMS + Liner 1, respectively. The highest and lowest total soluble solids were recorded for GAMS (16.87 °Brix), and GAMS + Liner 1 (15.60 °Brix) and UC + Liner 1 (15.60 °Brix), respectively. Overall, no decay was detected for coated fruit packaged with either Liner 1 or Liner 2. Therefore, the combination of GAMS with Xtend® polyliners proved to be an effective treatment to maintain the quality of ‘Wonderful’ pomegranates during storage.

scholarly journals Gibberellin4+7, Benzyladenine, and Supplemental Light Improve Postharvest Leaf and Flower Quality of Cold-stored `Stargazer' Hybrid Lilies

1998 ◽  
Vol 123 (4) ◽  
pp. 563-568 ◽  
Author(s):  
Anil P. Ranwala ◽  
William B. Miller
Keyword(s):  
Cold Storage ◽  
Storage Temperature ◽  
Postharvest Quality ◽  
Flower Longevity ◽  
Flower Bud ◽  
Leaf Injury ◽  
Leaf Chlorosis ◽  
Bud Opening ◽  
Flower Quality

Experiments were conducted to evaluate storage temperature, storage irradiance and prestorage foliar sprays of gibberellin, cytokinin or both on postharvest quality of Oriental hybrid lilies (Lilium sp. `Stargazer'). Cold storage of puffy bud stage plants at 4, 7, or 10 °C in dark for 2 weeks induced leaf chlorosis within 4 days in a simulated consumer environment, and resulted in 60% leaf chlorosis and 40% leaf abscission by 20 days. Cold storage also reduced the duration to flower bud opening (days from the end of cold storage till the last flower bud opened), inflorescence and flower longevity, and increased flower bud abortion. Storage at 1 °C resulted in severe leaf injury and 100% bud abortion. Providing light up to 40 μmol·m-2·s-1 during cold storage at 4 °C significantly delayed leaf chlorosis and abscission and increased the duration of flower bud opening, inflorescence and flower longevity, and reduced bud abortion. Application of hormone sprays before cold storage affected leaf and flower quality. ProVide (100 mg·L-1 GA4+7) and Promalin (100 mg·L-1 each GA4+7 and benzyladenine (BA)) effectively prevented leaf chlorosis and abscission at 4 °C while ProGibb (100 mg·L-1 GA3) and ABG-3062 (100 mg·L-1 BA) did not. Accel (10 mg·L-1 GA4+7 and 100 mg·L-1 BA) showed intermediate effects on leaf chlorosis. Flower longevity was increased and bud abortion was prevented by all hormone formulations except ProGibb. The combination of light (40 μmol·m-2·s-1) and Promalin (100 mg·L-1 each GA4+7 and BA) completely prevented cold storage induced leaf chlorosis and abscission.

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

scholarly journals Influence of Ecklonia maxima Extracts on Growth, Yield, and Postharvest Quality of Hydroponic Leaf Lettuce

Horticulturae ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 440
Author(s):  
Alessandro Miceli ◽  
Filippo Vetrano ◽  
Alessandra Moncada
Keyword(s):  
Cold Storage ◽  
Animal Feed ◽  
Growth Yield ◽  
Biomass Accumulation ◽  
Postharvest Quality ◽  
Mineral Nutrient ◽  
Ecklonia Maxima ◽  
Use Efficiency ◽  
Leaf Lettuce

Ecklonia maxima is a brown algae seaweed largely harvested over the last years and used to produce alginate, animal feed, fertilizers, and plant biostimulants. Their extracts are commercially available in various forms and have been applied to many crops for their growth-promoting effects which may vary according to the treated species and doses applied. The aim of the study was to characterize the effect of adding an Ecklonia maxima commercial extract (Basfoliar Kelp; 0, 1, 2, and 4 mL L−1) to the nutrient solution of a hydroponic floating system on growth, yield, and quality of leaf lettuce at harvest and during cold storage (21 days at 4 °C). The supplementation of the E. maxima extract through the mineral nutrient solutions, especially between 2 and 4 mL L−1, enhanced plant growth and improved the yield and many morphological and physiological traits (biomass accumulation, leaf expansion, stomatal conductance, water use efficiency, nitrogen use efficiency, etc.). Preharvest treatments with E. maxima extract were effective in delaying leaf senescence and extending the shelf-life of fresh-cut leaf lettuce. The delay in leaf decay of treated samples allowed to retain an overall quality over the threshold of marketability for up to 21 d of cold storage, especially using 2 mL L−1 of extract.

scholarly journals Impact of blanching and packaging materials on postharvest quality and storability of fresh spinach

2021 ◽  
pp. 7-12
Author(s):  
Waseem Siddique ◽  
Mahmood Ul Hasan ◽  
Muhammad Suliman Shah ◽  
Muhammad Moaaz Ali ◽  
Faisal Hayat ◽  
...  
Keyword(s):  
Weight Loss ◽  
Ascorbic Acid ◽  
Cold Storage ◽  
Acid Content ◽  
Modified Atmosphere Packaging ◽  
Ascorbic Acid Content ◽  
Storage Conditions ◽  
Poor Quality ◽  
Postharvest Quality ◽  
Ion Leakage

Spinach is a widely consumed leafy green vegetable, but it exhibits short storage life due to quick loss in moisture contents during postharvest period. The present study was aimed to evaluate the effect of blanching treatment and different types of packaging on spinach quality under cold storage conditions. Fresh spinach after treatment [T0 = control, T1 = blanching, T2 = modified atmosphere packaging (MAP-1, Xtend®), T3 = MAP-2 (Bio-fresh®) and T4 = perforated polyethylene (PE)] application was stored at 4±1 °C and 90±5 % RH for 20 days. Samples were analyzed at the time of harvest (0 day) and then after 3 days interval during storage. MAP treatments performed well and had a positive effect on spinach by maintaining its freshness and quality. Decay, ion leakage and weight loss were observed lower in spinach packed in MAP-1(Xtend®) followed by MAP-2 (Bio-Fresh®) and perforated PE packaging. MA packaging maintained higher ascorbic acid content, chlorophyll, and total antioxidants of spinach during storage. Nevertheless, spinach packed in perforated PE also displayed better results in maintaining quality as compared to control and blanched samples. The maximum weight loss, poor quality, minimum ascorbic acid content with lower consumer acceptability was recorded in control samples. Overall, MAP-1(Xtend®) could be used as a promising technology to maintain the quality of spinach up to 20 days of cold storage.

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 Quality of kohlrabi stems (Brassica oleracea var. gongylodes L.) kept in cold storage

2011 ◽  
Vol 23 (2) ◽  
pp. 107-110 ◽  
Author(s):  
Maria Gawęda ◽  
Zofia Nizioł-Łukaszewska
Keyword(s):  
Ascorbic Acid ◽  
Brassica Oleracea ◽  
Cold Storage ◽  
Dry Matter ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Soluble Sugars ◽  
Storage Period ◽  
Dry Matter Content

Quality of kohlrabi stems (Brassica oleracea var. gongylodes L.) kept in cold storage Two green kohlrabi cultivars, ‘White Delikates’ and ‘Korist’ F1, were kept in cold storage at a temperature of 2°C and a relative humidity of 95%. Natural mass losses were measured at monthly intervals and dry matter content, soluble sugars, L-ascorbic acid and isothiocyanates were analysed. During five months of storage, very low losses of kohlrabi mass were detected. The decrease in dry matter during that time was between 15 and 18%. After a brief increase, soluble sugar content decreased during storage, and in March, 50% of the initial sugar content was calculated for ‘Delikates’ kohlrabi flesh and 65% for ‘Korist’. L-ascorbic acid was well preserved in the kohlrabi, since 90% remained after storage was completed. The isothiocyanate content changed little and the vegetable remained a good source of these compounds throughout the storage period.

Effect of combined 1-MCP and cold storage on the shelf life and postharvest quality of tomato

2007 ◽  
pp. 247-248
Author(s):  
M. C. Martínez-Madrid ◽  
M. I. Egea ◽  
P. Sánchez-Bel ◽  
M. Valdenegro ◽  
F. Flores ◽  
...  
Keyword(s):  
Shelf Life ◽  
Cold Storage ◽  
Postharvest Quality
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