scholarly journals Modified Atmosphere Packaging Enhances the Effectiveness of Coolbot™ Cold Storage to Preserve Postharvest Quality of Mango Fruits

2018 ◽  
Vol 7 (5) ◽  
pp. 7
Author(s):  
Jane Ambuko ◽  
Esther Karithi ◽  
Margaret Hutchinson ◽  
Willis Owino
Keyword(s):  
Vitamin C ◽  
Shelf Life ◽  
Cold Storage ◽  
Smallholder Farmers ◽  
Low Cost ◽  
Modified Atmosphere Packaging ◽  
Storage Conditions ◽  
Postharvest Quality ◽  
Modified Atmosphere ◽  
Color Changes

Recently, the Coolbot™ technology was introduced to smallholder farmers in Kenya as a low-cost alternative to conventional cold rooms. The present study sought to establish the additive benefits of cold storage under Coolbot™ cold storage and modified atmosphere packaging (MAP) in mango fruits. The participatory study was conducted in Makueni County of Kenya between November 2014 and July 2015. The mango fruits (variety ‘Apple mango’) were harvested at mature green stage from commercial orchards owned by smallholder farmers. The fruits were selected for uniformity and randomly separated into four batches which were subjected to four different treatments (storage conditions). The treatments included fruits packaged using Activebag® MAP or not packaged and either stored in the Coolbot cold room or at ambient room conditions. A random sample was taken at regular intervals from each of the four storage environments and evaluated for ripening and quality related changes during storage. The parameters evaluated included physiological weight loss, respiration, firmness, color, sugars and vitamin C. Results showed that cold storage extended the shelf life of mango fruits by 23 days without MAP and 28 days with MAP, in comparison to storage at ambient room conditions. Slow ripening under cold storage (with and without MAP) was evidenced by lower rates of respiration, softening, color changes and sugars accumulation compared to ambient room conditions. In addition, cold-stored mango fruits maintained better nutritional quality as evidenced by higher vitamin C levels, 59.77 mg/100mL and 51.8 mg/100mL with and without MAP respectively at the end of storage (day 40 and 35). This was significantly higher (p<0.05) compared to 55.17 and 51.53 mg/100 mL vitamin C for MAP packed and unpacked fruits at the end of storage under ambient room conditions (day 12). The results demonstrate the additive benefit of MAP and cold storage to preserve postharvest quality and extend the shelf life of mango fruits. 

scholarly journals Effect of 1-Methyl Cyclopropane and Modified Atmosphere Packaging on the Storage of Okra (Abelmoschus esculentus L.): Theory and Experiments

2020 ◽  
Vol 12 (18) ◽  
pp. 7547 ◽  
Author(s):  
Rabia Kanwal ◽  
Hadeed Ashraf ◽  
Muhammad Sultan ◽  
Irrum Babu ◽  
Zarina Yasmin ◽  
...  
Keyword(s):  
Shelf Life ◽  
Cold Storage ◽  
Combined Treatment ◽  
Chilling Injury ◽  
Modified Atmosphere Packaging ◽  
Storage Conditions ◽  
Modified Atmosphere ◽  
Overall Acceptability ◽  
Reduce Weight Loss ◽  
The Individual

Okra possesses a short shelf-life which limits its marketability, thereby, the present study investigates the individual and combined effect of 1-methylcyclopropene (1-MCP) and modified atmosphere packaging (MAP) on the postharvest storage life of okra. The treated/ untreated okra samples were stored at ambient (i.e., 27 °C) and low (i.e., 7 °C) temperatures for eight and 20 days, respectively. Results revealed that the 1-MCP and/or MAP treatment successfully inhibited fruit softening, reduction in mucilage viscosity, and color degradation (hue angle, ∆E, and BI) in the product resulting in a longer period of shelf-life. However, MAP with or without 1-MCP was more effective to reduce weight loss in okra stored at both ambient and cold storage conditions. Additionally, ascorbic acid and total antioxidants were also retained in 1-MCP with MAP during cold storage. The 1-MCP in combination with MAP effectively suppressed respiration rate and ethylene production for four days and eight days at 27 °C and 7 °C temperature conditions, respectively. According to the results, relatively less chilling injury stress also resulted when 1-MCP combined with MAP. The combined treatment of okra pods with 1-MCP and MAP maintained the visual quality of the product in terms of overall acceptability for four days at 20 °C and 20 days at 7 °C.

scholarly journals Effect of Modified Atmosphere Packaging (MAP) and UV-C Irradiation on Postharvest Quality of Red Raspberries

Agriculture ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 29
Author(s):  
David Gimeno ◽  
Jaime Gonzalez-Buesa ◽  
Rosa Oria ◽  
Maria Eugenia Venturini ◽  
Esther Arias
Keyword(s):  
Shelf Life ◽  
Modified Atmosphere Packaging ◽  
Rubus Idaeus ◽  
Postharvest Quality ◽  
Modified Atmosphere ◽  
Packaging Film ◽  
Transmission Rates ◽  
Bioactive Content ◽  
Uv C

Red raspberries (Rubus idaeus L.) are highly appreciated by consumers. However, their postharvest shelf life scarcely exceeds 5 d under the refrigeration temperatures usually applied during commercialization, due to their high susceptibility to dehydration, softening and rot incidence. Thus, the objective of this study was to investigate the ability of UV-C radiation (UV1: 2 kJ m−2 and UV2: 4 kJ m−2), passive modified atmosphere packaging (MAP) with transmission rates (TR) for O2 and CO2 of 1805 mL d−1 and 1570 mL d−1 (MAP1), and 902 mL d−1 and 785 mL d−1 (MAP2), respectively, and the combination of both technologies to prolong raspberries’ shelf life at 6 °C. Their influence on respiration, physicochemical parameters, and microbiological and nutritional quality was assessed during 12 d of storage. The combination of 4 kJ m−2 UV-C radiation and a packaging film with O2 and CO2 transmission rates of 902 mL d−1 and 785 mL d−1, respectively, produced a synergistic effect against rot development, delaying senescence of the fruit. The UV2MAP2 and MAP2 samples only showed 1.66% rot incidence after 8 d of storage. The UV2MAP2 samples also had higher bioactive content (1.76 g kg−1 of gallic acid equivalents (GAE), 1.08 g kg−1 of catechin equivalents (CE) and 0.32 g kg−1 of cyanidin 3-O-glucoside equivalents (CGE)) than the control samples at the end of their shelf life. Moreover, the mass loss was minimal (0.56%), and fruit color and firmness were maintained during shelf life. However, the rest of the batches were not suitable for commercialization after 4 d due to excessive mold development.

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 Effect of storage conditions on the shelf-life extension of fungus-colonized substrates based on Metarhizium anisopliae using modified atmosphere packaging

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Seul-Gi Jeong ◽  
Ho Myeong Kim ◽  
Junheon Kim ◽  
Jae Su Kim ◽  
Hae Woong Park
Keyword(s):  
Shelf Life ◽  
Metarhizium Anisopliae ◽  
Modified Atmosphere Packaging ◽  
Pine Wilt Disease ◽  
Storage Conditions ◽  
Bursaphelenchus Xylophilus ◽  
Life Extension ◽  
Modified Atmosphere ◽  
Promising Alternative ◽  
Ethylene Vinyl Alcohol

AbstractMetarhizium anisopliae is a promising alternative to chemical pesticides against pine wilt disease caused by Bursaphelenchus xylophilus. Herein, we investigated the efficacy of modified atmosphere packaging (MAP) to prolong the shelf-life of the M. anisopliae conidia. The effects of various conditions on its stability were also examined. M. anisopliae-inoculated millet grains were treated in a MAP system with different packaging materials (polypropylene, PP; polyethylene terephthalate, PET; ethylene vinyl alcohol, EVOH), gas compositions (high CO2 atmosphere, ≈ 90%; high O2 atmosphere, > 95%; high N2 atmosphere, > 95%; 30% CO2 + 70% N2; 50% CO2 + 50% N2; 70% CO2 + 30% N2), and storage temperatures (4 and 25 °C). Results revealed EVOH film as the best for the preservation of gases at all concentrations for 28 days. MAP treatment in the high-barrier EVOH film under an atmosphere of 30% CO2 + 70% N2 achieved 80.5% viability of dried conidia (7.4% moisture content), with 44.2–64.9% viability recorded with the other treatments. Cold storage for technical concentrates formulation promoted extension of shelf-life of MAP-treated conidia. These results imply that MAP under optimized conditions could enhance the shelf-life of fungus-based biopesticides in fungus-colonized substrates formulations.

scholarly journals Pengaruh Perlakuan Uap Etanol Terhadap Mutu Dan Masa Simpan Buah Manggis (Garcinia Mangostana L.)

2018 ◽  
Vol 7 (1) ◽  
pp. 184
Author(s):  
I Gusti Ayu Prapti Pundari ◽  
I Made Supartha Utama ◽  
Ni Luh Yulianti
Keyword(s):  
Vitamin C ◽  
Room Temperature ◽  
Modified Atmosphere Packaging ◽  
Ethanol Vapor ◽  
Postharvest Quality ◽  
Modified Atmosphere ◽  
Garcinia Mangostana ◽  
Change Rate ◽  
Soluble Solid ◽  
Fruit Surface

Tujuan penelitian ini adalah untuk mengetahui pengaruh perlakuan uap etanol terhadap mutu dan masa simpan buah manggis pada suhu ruang. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 3 ragam volume etanol ; 0 ml, 2 ml, dan 4 ml masing-masing diperangkap dalam 5 gram karagenan dan dimasukkan ke dalam sachet teh. Sachet kemudian ditempatkan pada alas styrofoam dimana terdapat 5 buah manggis, selanjutnya ditutup dengan plastik film regang LDPE. Buah manggis tanpa perlakuan atau kontrol disediakan sebagai pembanding.  Buah selanjutnya disimpan pada suhu kamar (28±2?). Susut bobot, intensitas kerusakan, vitamin C, total padatan terlarut, warna, kekerasan dan uji organoleptik diamati selama penyimpanan. Hasil penelitian menunjukkan bahwa perlakuan uap etanol secara umum berpengaruh nyata dalam menurunkan tingkat kerusakan, susut bobot, memperlambat laju perubahan kekerasan, warna kulit dan aril, serta total padatan terlarut dan vitamin C dibandingkan buah kontrol.  Demikian pula uap etanol mampu memberikan nilai tingkat kesukaan panelis lebih tinggi terhadap warna dan rasa aril serta penampilan secara kesuluruhan dibandingkan dengan buah kontol.  Dari ragam perlakuan volume etanol, 4 mL etanol per kemasan mengkreasi uap terbaik untuk memperlambat laju kerusakan, perubahan mutu, menurunkan susut dan meningkatkan kesukaan panelis. Kata kunci: Manggis, uap etanol, kemasan atmosfer termodifikasi, mutu pascapanen The aim of this research was to determine the effect of etanol vapor on the quality and the shelf life of mangosteen at the room temperature. Three different volumes of ethanol, namely 0 ml, 2 ml and 4 ml, were trapped in the 5 gram carrageenan placed in the tea sachets.  The sachet was then put on the basal of styrofoam tray on which 5 fruits were placed and then wraped by streching film LDPE.  Control fruits or un-treated fruits were also provided as comparison. The result showed that the ethanol vapor treatments, in general, significantly reduced the intensity of damage, weidght loss, slowing the change rate of texture, color of fruit surface and aril, total soluble solid and vitamin C of the aril, compared to the control fruits.  The ethanol vapor was also able to give better preferences of panelists on  the color and flavor of the aril, as well as the overall performances of the fruits compared to the controls.  The 4 mL ethanol per package created ethanol vapor of which the best vapor to reduce the rate of damage and the change of quality and increase the panelists preferences.   Keyword : Mangosteen, ethanol vapor, modified atmosphere packaging, postharvest quality

scholarly journals Modified Atmosphere and Humidity Film Reduces Browning Susceptibility of Oriental Melon Suture Tissue during Cold Storage

Foods ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1329
Author(s):  
Me-Hea Park ◽  
Eun-Ha Chang ◽  
Hae-Jo Yang ◽  
Jung-Soo Lee ◽  
Gyung-Ran Do ◽  
...  
Keyword(s):  
Shelf Life ◽  
Cold Storage ◽  
Chilling Injury ◽  
Modified Atmosphere Packaging ◽  
Summer Season ◽  
Modified Atmosphere ◽  
Display Condition ◽  
Browning Index ◽  
Oriental Melon ◽  
Retail Display

Oriental melons have a relatively short shelf life as they are harvested during the summer season and susceptible to cold-induced injuries. Typical chilling injury when stored at 4 °C is expressed as browning of the fruit suture. To prolong the shelf life and reduce browning of the fruit, the effects of modified atmosphere packaging (MAP), X-tend modified atmosphere (MA)/modified humidity (MH) bulk packaging (XF), and polyethylene (PE) packaging, on oriental melons were investigated during storage at 4 °C and 10 °C for 14 days and under retail display conditions at 20 °C. The O2 concentrations in PE packages stored at 4 °C and 10 °C ranged from 17.4 to 18.5%, whereas those in XF packages were reduced to 16.3–16.6%. The CO2 content of XF package (4.2–4.6%) was higher than that of PE package (1.4–1.9%) stored at 4 °C or 10 °C. Relative humidity (RH) saturated in the PE packages but not in the XF packages after seven days of storage. Furthermore, PE packages performed better at maintaining melon weight and firmness than XF packages during storage at 10 °C for 14 days and under retail display conditions at 20 °C. PE and XF packages effectively reduced the browning index of the peel and white linear sutures of oriental melons compared with the unpackaged control during cold storage at 4 °C, and this observation was maintained at the retail display condition at 20 °C. The enhanced CO2 levels, reduced O2 levels, and optimal RH values that were provided by the MAP, prevented the browning symptoms, and improved the marketability and shelf life of oriental melons.

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