MODIFIED ATMOSPHERE EXTENDS STORAGE PERIOD AND MAINTAINS QUALITY OF ´BARHI´ DATE FRUITS

Experiments were conducted to develop a modified atmosphere packaging system for fresh-cut cilantro (Coriandrum sativum L.) leaves, and to determine the effect of package film oxygen transmission rate (OTR) on package atmosphere and the consequence on quality and microbiology of the product. Package film OTR significantly (P < 0.001) influenced the package atmospheres and the resultant postharvest physiology and quality of fresh-cut cilantro leaves under the tested package configuration (bag size 19 × 22 cm, product fill weight 85 g/bag) and storage condition (0 °C). Oxygen and carbon dioxide levels of the packages prepared with 3500 mL·d-1·m-2 OTR films equilibrated at 1.5 to 2.3 kPa and 3.6 to 4.1 kPa, respectively, on day 3 and maintained this level throughout the storage. The gas compositions of the packages with 6200 mL·d-1·m-2 OTR films showed a similar trend, except they equilibrated at a higher O2 (3.6 to 5.6 kPa) and lower CO2 (2.7 to 3.3 kPa) level. Fresh-cut cilantro leaves in both packages exhibited the highest tissue integrity as evidenced by the lowest tissue electrolyte leakage, with high overall visual quality scores (like moderately to like very much) at the end of 14 days storage. However, atmospheres in 1700 mL·d-1·m-2 OTR film packages displayed a rapid depletion of O2 and accumulation of CO2, with essentially no O2 (≈0.02 kPa) and high CO2 (7.7 to 9.0 kPa) levels inside the packages from day 6 until the end of storage. A rapid increase in tissue electrolyte leakage was observed in cilantro leaves in these packages starting on day 6, increasing 6-fold at the end of the storage period. Products in these packages developed a strong off-odor, accompanied by a rapid loss of typical aroma and overall visual quality, with an unacceptable quality rating at the end of storage (dislike slightly). Samples packaged in perforated bags (without modified atmosphere) lost moisture over time, and small numbers of wilted leaves were seen. There was a slow but significant (P < 0.001) increase in aerobic organisms over time with no significant (P > 0.05) difference among treatments. There was an increase in anaerobic microorganisms on cilantro leaves packaged in 1700 mL·d-1·m-2 OTR film, although only ≈0.5 log cfu/g difference was observed among the treatments and over time.

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Hot Water Treatment in Combination with Rachis Removal and Modified Atmosphere Packaging Maintains Quality of Table Grapes

HortScience ◽

10.21273/hortsci.44.7.1947 ◽

2009 ◽

Vol 44 (7) ◽

pp. 1947-1952 ◽

Cited By ~ 5

Author(s):

Liping Kou ◽

Yaguang Luo ◽

Wu Ding ◽

Xinghua Liu ◽

William Conway

Keyword(s):

Water Treatment ◽

Modified Atmosphere Packaging ◽

Storage Period ◽

Hot Water ◽

Microbial Populations ◽

Modified Atmosphere ◽

Hot Water Treatment ◽

Table Grapes ◽

Entire Storage Period

Alternatives to sulfur dioxide to maintain quality of table grapes, including various combinations of rachis removal, chlorinated wash, hot water treatment, and modified atmosphere packaging, were explored in this study. Grapes were prepared by cutting off the rachis 1 to 2 mm from the fruit or by keeping the clusters intact. After initial preparation, short-stem and cluster grapes were subjected to chlorinated wash and/or hot water (45 °C, 8 min) treatment and packaged in plastic trays sealed with a gas-permeable film. The treated grapes as well as the commercially packed grapes (COM) in their original packages were stored at 5 °C for up to 4 weeks. Hot water treatment resulted in significantly (P < 0.05) higher oxygen retention and lower carbon dioxide accumulation in package headspaces, maintained a firmer texture, higher overall visual quality, lower decay rate, and lower microbial populations than other treatments or COM during the entire storage period. Grapes that were cut from the rachis and treated with hot water and chlorine maintained the highest quality for 4 weeks with the least decay among all treatments. A chlorine prewash treatment significantly (P < 0.05) reduced microbial populations on cluster grapes and maintained better overall quality. Conventional COM grapes developed dark decay and lost turgidity and were of unacceptable quality at 28 days of storage.

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Trans-2-Hexenal-Based Antifungal Packaging to Extend the Shelf Life of Strawberries

Foods ◽

10.3390/foods10092166 ◽

2021 ◽

Vol 10 (9) ◽

pp. 2166

Author(s):

Raquel Heras-Mozos ◽

Adrián García-Moreno ◽

María Monedero-Prieto ◽

Ana Maria Tone ◽

Laura Higueras ◽

...

Keyword(s):

Nutritional Value ◽

Modified Atmosphere Packaging ◽

Storage Period ◽

Textural Properties ◽

Modified Atmosphere ◽

Hexyl Acetate ◽

Packaging System ◽

Active Systems ◽

Active Package

Strawberries are valuable because of their nutritional value, but they are also highly perishable fruits. Fungal decay is the overriding factor that alters the overall quality of fresh strawberries. Because no hygienic treatments to reduce the initial microbial load are feasible, molds develop during postharvest when using conventional packaging. In this study, an antifungal packaging system for strawberries was developed to improve safety and quality. Trans-2-hexenal (HXAL), a natural compound in strawberries, was incorporated into the modified atmosphere packaging (MAP) systems. Zero, 100, and 250 µL of HXAL were included in cellulosic pads and were covered with a polyamide coating to control its release. The pads were placed on the bottom of plastic trays; an amount of250 g of strawberries was added, flow packed in micro-perforated PP bags, and stored at 4 °C for 14 days. Fungal infection was monitored during the storage period, and the optical and textural properties of the strawberries were measured at days 0 and 14. Analysis of the package headspace was conducted to check for the HXAL concentration. HXAL was partially retained in the fruits and was converted into hexyl acetate and 2-hexen-1-ol acetate, but this was only measurably present in the headspace of the active systems. Mold growth was fully inhibited in active packaging although the strawberries were softer and darker than those in the control packages. The active package was not as efficient if the fruits were stored under thermal-abuse conditions (15 and 22 °C).

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Microbial Quality of Fresh Potatoes: Effect of Minimal Processing

Journal of Food Protection ◽

10.4315/0362-028x-60.7.863 ◽

1997 ◽

Vol 60 (7) ◽

pp. 863-866 ◽

Cited By ~ 14

Author(s):

GURBUZ GUNES ◽

DON F. SPLITTSTOESSER ◽

CHANG Y. LEE

Keyword(s):

Microbial Population ◽

Modified Atmosphere Packaging ◽

Storage Period ◽

Microbial Populations ◽

Acid Mixture ◽

Modified Atmosphere ◽

Minimal Processing ◽

Vibrio Fluvialis ◽

Pseudomonas Species

Fresh-cut potatoes were treated with an antibrowning solution (l-cysteine-citric acid mixture) and chlorine solutions, and then packaged under a modified atmosphere. The effect of these treatments on the microbiology of the potatoes was evaluated. Dipping the potato strips in sodium hypochlorite solutions (100 and 300 ppm) resulted in higher microbial populations during the storage period, while potatoes treated with the antibrowning solution combined with modified-atmosphere packaging showed only a slight increase. Modified-atmosphere packaging had no significant-effect on the microbial population compared to nonpackaged samples. The predominant organisms were Pseudomonas fluorescens, along with other Pseudomonas species, and Vibrio fluvialis.

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Sensorial and Chemical Quality of Gamma-Irradiated Fresh-Cut Iceberg Lettuce in Modified Atmosphere Packages†

Journal of Food Protection ◽

10.4315/0362-028x-65.11.1760 ◽

2002 ◽

Vol 65 (11) ◽

pp. 1760-1765 ◽

Cited By ~ 29

Author(s):

XUETONG FAN ◽

KIMBERLY J. B. SOKORAI

Keyword(s):

Ascorbic Acid ◽

Dehydroascorbic Acid ◽

Storage Period ◽

Modified Atmosphere ◽

Visual Appearance ◽

Iceberg Lettuce ◽

Fresh Cut ◽

Gamma Irradiated ◽

Safety Enhancement

A study was conducted to investigate the effects of various doses of irradiation on the quality of fresh-cut iceberg lettuce and to determine a suitable maximum dose. Fresh-cut iceberg lettuce packaged in film bags was exposed to 0, 1, 2, 3, and 4 kGy of gamma radiation and stored at 3°C for 14 days. CO2 levels were higher and O2 levels were lower in packages containing irradiated lettuce than in those containing nonirradiated lettuce for most of the storage period. Comparison with nonirradiated lettuce indicated that total ascorbic acid (ascorbic acid plus dehydroascorbic acid) content and firmness were not significantly influenced by irradiation at 1 or 2 kGy. The overall visual appearance was best for lettuce irradiated at 1 or 2 kGy. This improved quality may be related to the high CO2 and low O2 levels observed for the irradiated samples. Electrolyte leakage for lettuce increased with higher radiation doses and was correlated (R2 = 0.99) with a soggy appearance. The leakage for lettuce irradiated at ≥2 kGy was significantly more extensive than that for nonirradiated lettuce. The irradiation of fresh-cut lettuce in modified atmosphere packages at doses of 1 kGy and perhaps 2 kGy for safety enhancement and quality improvement is feasible.

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Storage of soybean seeds: Packaging and modified atmosphere technology

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v23n11p876-882 ◽

2019 ◽

Vol 23 (11) ◽

pp. 876-882

Author(s):

André F. Capilheira ◽

Jerffeson A. Cavalcante ◽

Gizele I. Gadotti ◽

Bruna R. Bezerra ◽

Nander F. Hornke ◽

...

Keyword(s):

Environmental Conditions ◽

Seedling Emergence ◽

Storage Period ◽

Negative Influence ◽

Co2 Injection ◽

Modified Atmosphere ◽

Soybean Seeds ◽

Physiological Quality ◽

Hermetic Package

ABSTRACT The characteristics of materials used in packages for seed storage may have a negative influence in the deterioration process, causing future problems during the period of storage and in emergence in the field. In this study, the objective was to evaluate the physiological quality of soybean seeds, stored in different packages with and without the addition of CO2 (modified atmosphere), for different periods of storage and in uncontrolled environmental conditions. In order to carry out the experiment, a completely randomized design was used in a split-plot scheme, with three types of packages (permeable, hermetic package inside the permeable package and hermetic package inside the permeable package with CO2 injection) in the main plot and six storage periods (zero, 45, 90, 135, 180 and 225 days) in the subplot, with four repetitions, totaling 72 experimental units. In hermetic packages multi-layer paper was used with or without CO2 injection, stored them for 225 days and performed an assessment at regular intervals of 45 days. At each period, the seeds were submitted to tests for moisture content, germination, seedling emergence, accelerated aging and electrical conductivity. The hermetic package, with and without CO2 injection, decreases the speed of deterioration of soybean seeds. The hermetic package allows a higher physiological quality of soybeans compared to the permeable package, with a storage period of up to 180 days under uncontrolled environmental conditions. The addition of CO2 inside the hermetic packages favors the maintenance of the physiological quality of soybean seeds in storage.

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Preservation of the quality of Actinidia kolomikta berries using a modified atmosphere

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/845/1/012086 ◽

2021 ◽

Vol 845 (1) ◽

pp. 012086

Author(s):

O M Blinnikova ◽

I M Novikova ◽

A S Ilinsky ◽

L G Eliseeva ◽

D A Blinnikova

Keyword(s):

Carbon Dioxide ◽

Fruits And Vegetables ◽

Educational Institution ◽

Storage Period ◽

Federal State ◽

Modified Atmosphere ◽

Duration Of Storage ◽

Plastic Containers ◽

Medium Storage

Abstract Actinidia berries are a unique natural source of ascorbic acid and many other important physiologically valuable nutrients, but they have a short shelf life. A modified atmosphere is of particular importance for preserving the quality of Actinidia berries during storage. The research was implemented in the laboratory of progressive technologies for storing fruits and vegetables of the research center of the Federal State Budgetary Educational Institution of Higher Education of the Michurinsky State Agrarian University on Actinidia berries of the Soroka variety. 600-700 g of freshly picked berries were placed in perforated plastic containers. The storage technology provided for the cooling of Actinidia to a temperature of + 0.5 ° C, the installation of perforated plastic containers with berries in the Xtend package, and packaging. The packages had two mini-cranes each, designed to connect the gas-analyzer inlet pneumatic line and return the medium. Storage was carried out in a refrigerator at a constant temperature of + 0.5 ° C and relative humidity of 90%. During the storage period, the concentration of oxygen, carbon dioxide, and ethylene in the bag was regularly measured, and the berries were examined, and their appearance was assessed. It was found that after three days of storage, the level of gas concentrations inside the package stabilized and over the next 28 days was in the range of 3.1-3.5% for carbon dioxide and 17.8-18.8% for oxygen. The intensity of ethylene release increased sharply on the 28th day of storage, which led to a significant decrease in the commercial quality of the berries. The studies have shown that to preserve the quality and extend the storage period of Actinidia berries, it is possible to recommend using a modified atmosphere, which ensures the preservation of the original quality of fresh berries. The optimal storage period is 24 days, with the yield of standard berries 94.4%, which is 2.3 times higher than the control. The duration of storage in a modified atmosphere is increased from 3 days to 24 days.

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Extension of the Postharvest Life of Nectarine Using Modified Atmosphere Packaging and Potassium Permanganate Treatment

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v6i10.1362-1369.1972 ◽

2018 ◽

Vol 6 (10) ◽

pp. 1362

Author(s):

Erdinc Bal

Keyword(s):

Potassium Permanganate ◽

Fruit Quality ◽

Prunus Persica ◽

Chilling Injury ◽

Modified Atmosphere Packaging ◽

Storage Period ◽

Soluble Solids ◽

Total Phenolic ◽

Modified Atmosphere

The effects of combinations of modified atmosphere packaging (MAP) with potassium permanganate (KMnO4) based ethylene scrubbers on the storage life and fruit quality of nectarine (Prunus persica cv. Bayramiç Beyazı) were investigated. Three different types of ethylene sachets (contained 3, 7 and 10 g KMnO4) were used and placed beside fruits in polypropylene baskets then lined with MAP. Fruits were stored at 0-1°C and 90% relative humidity throughout 40 day. During the cooling storage period, O2 and CO2 percentage in MAP, fruit firmness, total soluble solids, titratable acidity, ascorbic acid, total ﬂavonoid content, total phenolic content, total antioxidant content and chilling injury (CI) were determined at 10 day interval. KMnO4 treated fruits had shown delayed ripening, reduced respiration and retained of higher firmness. As the dose of KMnO4 treatment increased, it was determined more positive effect on fruit quality. 10 g KMnO4 treatment was most effective in the retention of higher biochemical compounds and inhibition of CI symptoms. The results indicate that KMnO4 treatment, as well as MAP application, should be highly recommended for retaining the fruit quality of cold-stored ‘Bayramiç Beyazı’ nectarines and fruits treated with 10 g doses of KMnO4 could be stored for 40 days with good quality.

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

Acta Scientiarum Polonorum Hortorum Cultus ◽

10.24326/asphc.2019.5.2 ◽

2019 ◽

Vol 18 (5) ◽

pp. 13-26 ◽

Cited By ~ 1

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.

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Microbiological Stability and Overall Quality of Ready-to-Heat Meals Based on Traditional Recipes of the Basilicata Region

Foods ◽

10.3390/foods9040406 ◽

2020 ◽

Vol 9 (4) ◽

pp. 406

Author(s):

Attilio Matera ◽

Giuseppe Altieri ◽

Annamaria Ricciardi ◽

Teresa Zotta ◽

Nicola Condelli ◽

...

Keyword(s):

Shelf Life ◽

Nutritional Value ◽

Modified Atmosphere Packaging ◽

Storage Period ◽

Modified Atmosphere ◽

Basilicata Region ◽

Challenge Testing ◽

Microbiological Stability ◽

Partial Inactivation

The quality of ready meals is affected by several factors that may impair stability and nutritional value. In this work, we evaluated the overall quality of four traditional meals (Basilicata region) prepared according to the cook&chill method, packaged in air or modified atmosphere packaging (MAP; 70% N2 and 30% CO2), and stored at 4 °C for seven days. The shelf-life was determined by Listeria monocytogenes challenge testing and inactivation by microwave (MW) heating was assessed. The counts at the production day were excellent in three meals out of four, whereas one had high levels of spoilage and pathogens both as soon as the preparation and after seven days. MAP was partially effective only against the growth of the aerobic mesophilic species, whereas sensory analysis revealed that MAP may preserve many of sensory attributes. The average shelf-life of the meals ranged from 11 to 13 days, however, the potential shelf-life was undetectable in one out four meals, as L. monocytogenes growth was inhibited two days after the inoculum. In the inoculated meals, MW heating provided a partial inactivation (25%) of the pathogen. The overall quality of type the meals was partially satisfactory; post-cooking contaminations may affect the microbial load and reduce the palatability over the storage period and, above all, may involve biological hazards which consumers’ habits may not be able to eliminate.

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