scholarly journals Influence of Modified Atmosphere Packaging on Storability and Postharvest Quality of Cornelian Cherry (Cornus mas L.) Fruits

2015 ◽  
Vol 7 (1) ◽  
pp. 116-122 ◽  
Author(s):  
Sheida MOHEBBI ◽  
Younes MOSTOFI ◽  
Zabihallah ZAMANI ◽  
Farzaneh NAJAFI
Keyword(s):  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Visual Quality ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Low Density Polyethylene ◽  
Postharvest Quality ◽  
Modified Atmosphere ◽  
Low Density ◽  
Cornus Mas

Cornelian cherries were stored in two types of polymeric films (low density polyethylene and polypropylene) and three gas combinations 5%O2 + 20%CO2 + 75%N2, 60%O2 + 20%CO2 + 20%N2 and Air) at 1 °C and 90-95% relative humidity for 35 days. Unpackaged cornelian cherries were used as a control. Samples were taken initially and at intervals of 7-days during storage, when quality parameters were measured. Results showed that modified atmosphere packaging (MAP) allowed the stored fruits to retain their weight and visual quality throughout the experiment, regardless of the gas combinations used, while by the end of the storage period the unpackaged fruit lost over 30% of their weight and consequently visual quality. Overall, packaging in 60%O2 + 20%CO2 polypropylene (PP) and air low density polyethylene (LDPE) could retard soluble solid contents, titratable acidity, ascorbic acid, anthocyanin index decrease and pH increase during the storage time. Additionally, such packaging could lead to better surface color preservation than that of fruits kept in open containers. Furthermore, packaging in air low density polyethylene and 60%O2 + 20%CO2 low density polyethylene could delay total phenolics accumulation and increase peroxidase activity to levels higher than those in the control. During the maintenance period, no symptoms of decay were observed.

scholarly journals Physicochemical and enzimatic transformations of "eva" apples stored under modified atmosphere

2014 ◽  
Vol 38 (4) ◽  
pp. 375-381
Author(s):  
Ariela Betsy Thomas ◽  
Caroline Roberta Freitas Pires ◽  
Luiz Carlos de Oliveira Lima
Keyword(s):  
Titratable Acidity ◽  
Soluble Solids ◽  
Low Density Polyethylene ◽  
Postharvest Quality ◽  
Experimental Unit ◽  
Modified Atmosphere ◽  
Low Density ◽  
Randomized Design ◽  
The City

The need for a permanent market supply of fresh fruit has generated great interest in postharvest techniques that can promote useful life and quality of the fruit. The aim of this study was to evaluate the efficiency of atmospheric modification using different polymeric films in maintaining postharvest quality and prolonging the shelf life of Eva (Mallus sp) apples. For this, fruits from the city of Barbacena - MG, selected and sanitized were packed in plastic trays and wrapped in the corresponding films. The films used were: polypropylene - 20 µm, low-density polyethylene - 14 µm and high-density polyethylene - 7 µm. Another group of fruits (control) was not submitted to a modified atmosphere. Subsequently, all the the packages were stored under refrigeration (0 ° C ± 0.5) for 210 days and the evaluations of the following variables were performed every 30 days of storage: hydrogen potential (pH), titratable acidity, soluble solids, weight loss, firmness, total pectin, soluble pectin, pectin methyl esterase and polygalacturonase. The work was conducted in a completely randomized design (4x8), with 4 treatments and 8 experimental times. Each treatment consisted of three replicates and each experimental unit consisted of six fruits. The results were submitted to variance analysis and means were compared by the Tukey test at 5% probability and regression analysis. The low density polyethylene (14 µm) packaging provided the best conservation of the Eva cultivar apple textural characteristics.

Use of Modified Atmosphere Packaging to Manage Quality of Green Garlic Leaves during Cold Storage Period

2020 ◽  
pp. 550
Author(s):  
Selen Akan ◽  
Özge Horzum
Keyword(s):  
Chlorophyll Content ◽  
Cold Storage ◽  
Pearson Correlation ◽  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Total Phenolic

Green garlic leaves are consumed as fresh and cooked in Turkey and in some part of the world such as Asia, America and Africa. This crop could be considered as a promising export product in Turkey’s exportation volume. For this reason, we investigated how different package materials such as low-density polyethylene (LDPE) and closed polypropylene transparent boxes (CPTB) maintain some quality parameters of green garlic (Allim sativum L.) leaves. For that purpose, garlic leaves were stored at 10 °C and 80±5% relative humidity for 12 days after cutting, pre-cooling and packaging. Weight loss (WL),  soluble solids content (SSC), titratable acidity (TA), chlorophyll content as SPAD reading, visual quality (VQ), color, total phenolic content (TPC) and total antioxidant capacity (TAC) were measured at 3, 6, 9 and 12 days during storage period. Our results indicated that both packaging materials significantly maintained (P ≤ 0.05) WL, TA, chlorophyll content, VQ and TPC compared to controls (unpacked samples). Pearson Correlation tests showed that WL, color (L*, b*), TA and TAC could be used as marker to determine storage life of green garlic leaves. In addition, CPTB package is more effective in maintaining quality of green garlic leaves during cold storage.

scholarly journals Fresh-Cut Bell Peppers in Modified Atmosphere Packaging: Improving Shelf Life to Answer Food Security Concerns

Molecules ◽  
2020 ◽  
Vol 25 (10) ◽  
pp. 2323
Author(s):  
Carla Barbosa ◽  
Thelma B. Machado ◽  
Manuel Rui Alves ◽  
Maria Beatriz P. P. Oliveira
Keyword(s):  
Food Security ◽  
Shelf Life ◽  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Titratable Acidity ◽  
Small Variation ◽  
Carotenoid Content ◽  
Modified Atmosphere ◽  
Bell Peppers ◽  
Fresh Cut

The influence of modified atmosphere packaging (MAP, 10% O2 and 45% CO2) on the quality characteristics of fresh-cut green, red and yellow bell peppers (Capsicum annuum L. var annuum) was investigated. Packaging film bags (Krehalon MLF40-PA/PE) with fresh-cut bell peppers were stored for up to 17 days at 5 °C. The in-package O2 level ranged between 10 and 15%, respecting the current recommendations for fresh-cut vegetable products. Initial CO2 levels were higher than commonly used (from 5 to 10%), decreasing progressively over time due to the permeability of the selected polyethylene film. At the end of the storage period, they stabilized between 2 and 5%. A small variation in texture, moisture, titratable acidity, pH and microbial growth was observed during the storage period, as well as a good color retention and sensory properties maintenance. Negligible losses in the antioxidant activity and bioactive compounds (total phenol, flavonoid, anthocyanin and carotenoid content) were noted at the end of the study. Sensory analysis showed that panelists could not detect significant differences among sampling periods. A PCA with predictive biplots confirmed the existence of significant correlations. The products retain their initial characteristics without severe loss of quality until at least the 17th storage day. Given the current commercial shelf life of fresh-cut bell peppers, ranging from 9 to 14 days, the described treatment enabled an increase of at least 3 days (20%) of the products shelf life, reducing food waste and contributing to food security.

scholarly journals 350 Quality Changes of Spinach Stored in Controlled and Modified Atmospheres

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 503E-503 ◽  
Author(s):  
Ma. Teresa MartÌnez-Damian ◽  
Marita I. Cantwell
Keyword(s):  
Modified Atmosphere Packaging ◽  
Temperature Fluctuations ◽  
Visual Quality ◽  
Titratable Acidity ◽  
Leaf Damage ◽  
Modified Atmosphere ◽  
Plastic Film ◽  
Full Size ◽  
Controlled Atmospheres ◽  
Modified Atmospheres

Spinach is not packed commercially in modified-atmosphere packaging due to difficulties in maintaining beneficial conditions during distribution, where temperature fluctuations can occur. However, low O2 and high CO2 atmospheres can be useful to retard yellowing and deterioration. In two experiments we studied developing and full-size leaves stored at 7.5 °C in air and controlled atmospheres of 0.5% O2 + 10%CO2 and 5%O2 + 10% or 20% CO2. Subjective quality evaluations (visual quality, decay, discoloration, off-odors, and yellowing) and objective evaluations (L*a*b* color values, chlorophyll, pH and titratable acidity, ammonia, and ethanol and acetaldehyde) were conducted every 3 days during 15 days. The developing leaves had higher visual quality and lower off-odor scores during storage than did the full-size leaves. In air storage, leaves were below the limit of salability by day 12. The atmospheres containing 10% CO2 were similarly effective in maintaining the visual quality and greenness of the leaves, and reduced off-odors in developing but not full-size leaves. The 20% CO2 atmosphere resulted in some leaf damage. Ammonia concentrations increased during storage, with lowest and highest concentrations in leaves stored in air and 20% CO2, respectively. Tissue pH only slightly increased from 6.5 in air-stored samples, but increased notably during storage in the controlled atmospheres. At 2.5 and 7.5 °C, a plastic film providing a 5% O2 and 6% CO2 atmosphere resulted in better quality spinach than that obtained with either a 10% O2 and 3% CO2 package atmosphere or the commercial perforated polybag.

scholarly journals COMBINED TREATMENTS OF MODIFIED ATMOSPHERE PACKAGING WITH AMINOETHOXYVINYLGLYCINE MAINTAINED FRUIT QUALITY IN SWEET CHERRY THROUGHOUT COLD STORAGE AND SHELF LIFE

2019 ◽  
Vol 18 (5) ◽  
pp. 13-26 ◽  
Author(s):  
Saadet Koc Guler ◽  
Orhan Karakaya ◽  
Medeni Karakaya ◽  
Burhan Ozturk ◽  
Erdal Aglar ◽  
...  
Keyword(s):  
Weight Loss ◽  
Shelf Life ◽  
Cold Storage ◽  
Sweet Cherry ◽  
Modified Atmosphere Packaging ◽  
Storage Period ◽  
Titratable Acidity ◽  
Modified Atmosphere ◽  
Hue Angle

The effects of combined aminoethoxyvinylglycine (AVG) and modified atmosphere packaging (MAP) treatments on quality attributes of ‘0900 Ziraat’ sweet cherry fruit during the cold storage and shelf life were investigated in this study. Significantly lower weight loss and decay ratios were observed in all treatments throughout the cold storage period as compared to the control. A similar case was also observed referring to the shelf life. MAP treatments were found to be more effective in retarding the weight loss and decay ratio. Higher hue angle values were measured from AVG-treated fruit at harvest. Similarly, hue angle of AVG and MAP-treated fruit were also higher than for the control in all periods of cold storage and on the 7th and 21st day of shelf life. AVG-treated fruit had higher firmness values than the control at harvest. However, higher firmness values were measured from MAP-treated fruit during the cold storage and shelf life. At the end of cold storage, lower SSC and higher titratable acidity values were observed in AVG and MAP-treated fruit than in the control. AVG + MAP treatments yielded significantly higher vitamin C, total phenolics and antioxidant activity values than the control. Contrarily, the control fruit had significantly higher total monomeric anthocyanin than the other treatments. Based on current findings, it was concluded that combined AVG + MAP treatments could be used as a beneficial tool to maintain the quality of sweet cherry fruit throughout the cold storage and shelf life.

scholarly journals EXTENDED COLD STORAGE OF WINTER PEARS BY MODIFIED ATMOSPHERE PACKAGING

2017 ◽  
Vol 39 (1) ◽  
Author(s):  
MOISES ZUCOLOTO ◽  
LUCIMARA ROGERIA ANTONIOLLI ◽  
DALMO LOPES DE SIQUEIRA ◽  
ANA BEATRIZ COSTA CZERMAINSKI
Keyword(s):  
Weight Loss ◽  
Visual Perception ◽  
Cold Storage ◽  
Room Temperature ◽  
Modified Atmosphere Packaging ◽  
Low Density Polyethylene ◽  
Modified Atmosphere ◽  
Low Density ◽  
Linear Low Density Polyethylene ◽  
Green Color

ABSTRACT The aim of this work was to evaluate the effect of passive modified atmosphere packaging (MAP) on the maintenance of fruit quality during the extended storage of ‘Rocha’ and ‘Packham’s Triumph’ pears. Fruit were packed in linear low density polyethylene (100 mm), with 6% BIF 1500 additive placed into perforated plastic boxes and kept at 0 ± 1 °C and 90 ± 5% RH for up to 180 days. MAP reduced weight loss by 14.8% for ‘Rocha’ and 11.5% for ‘Packham’s’ pears after 180 days in cold storage and retained the green color of the skin, which means that the yellowing visual perception was delayed in 60 and 90 days for ‘Rocha’ and ‘Packham’s’ pears, respectively. A strong softening was observed for ‘Packham’s’ pears after being kept for 150 days at 0° C followed by 5 days at room temperature, which did not limit the storage of both pear cultivars under modified atmosphere packaging. MAP created by linear low density polyethylene (100 mm), with 6% BIF 1500 additive extended in 30 days the cold storage for ‘Rocha’ and 60 days for ‘Packham’s’ pears.

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