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Showing 1 to 20 of 36 for “"modified atmosphere"”.
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Modified atmosphere packaging of hard grated cheeses
… growth of a food pathogen when packaged under a modified atmosphere (25% CO, and 75% N,). Other microbial analysis included mold and yeast enumerations. Secondly, product quality and shelf stability were determined biweekly by sensory, microbial, and instrumental analysis to evaluate product …
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Modified atmosphere packaging of ground turkey thigh meat
… period. Colorimeter values did show the 100% CO₂ atmosphere caused discoloration of the product during the first week. Fat level did not affect microorganism growth or shelf-life extension. Rosemary oleoresin was effective as an antioxidant. TBA values of rosemary treated samples remained under …
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Inhibition of Listeria monocytogenes on frankfurters by modified atmosphere packaging and antimicrobials
… in 100% CO₂ than those packaged in a vacuum atmosphere (P £ 0.001). Sodium acetate (0.5%) and sodium lactate (2.4%) in combination with a high CO₂ atmosphere prevented any increase in L. monocytogenes numbers for up to 4 weeks at 10°C. The use of sodium lactate (4.8%) and sodium diacetate …
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Respiratory behaviour and quality attributes of fresh apple slices in modified atmosphere systems
… - treated, peeled, cored and sliced apples in modified atmospheres were studied in a two part investigation. Firstly, respiratory behaviour of slices of New Zealand Granny Smith and British Columbia grown Newtown apples at different temperatures (1, 5, 10 & 15°C) was studied in sealed …
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Use of modified atmosphere technology to maintain quality of direct-set cottage cheese
… Previous studies have demonstrated that modified atmosphere packaging (MAP) is able to maintain cottage cheese quality and extend shelf-life over air packaging. The objectives of our study were to evaluate the ability of MAP to maintain cottage cheese quality, while establishing the …
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Effects of misting and modified atmosphere packaging on nutrient and market quality of broccoli
Restriction data tranferred 2014-07-01T11:15:51-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission
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Use of modified atmosphere packaging to extend the shelf-life of whole and pre-cut lettuce
This thesis investigated the potential of using modified atmosphere packaging (MAP) to maintain the quality of whole and pre-cut lettuce for longer periods than that currently obtained in air. Achieving this goal will enable whole lettuce to be exported to South-East Asia and Japan by ship rather …
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Effect of modified atmosphere packaging on growth of Listeria monocytogenes and nonproteolytic Clostridium botulinum in cooked turkey
… separately under varying conditions of modified atmosphere packaging (MAP), refrigerated and temperature-abuse storage, and lactic acid bacteria (LAB) competition. L. monocytogenes (LM) growth was suppressed when initially outnumbered 3.5 logs:1 or 2.1 logs:1 by naturally-occurring LAB, …
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The effect of modified atmosphere packaging (MAP) on the shelf- life of refrigerated, cubed turkey thigh meat
… was designed to investigate the effect of Modified Atmosphere Packaging (MAP) on the shelf life of refrigerated, cubed, turkey thigh meat. Modified atmospheres of 25% carbon dioxide and 75% nitrogen and 20% carbon dioxide, 60% oxygen, and 20% nitrogen were used for MAP1 and MAP2 …
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Gas transport properties of poly(n-alkyl acrylate) blends and modeling of modified atmosphere storage using selective and non-selective membranes
… acrylates) are briefly examined. A bulk modified atmospheric storage design is proposed where produce is stored in a rigid chamber that is equipped with both selective and non-selective membrane modules that help regulate the oxygen entering and the carbon dioxide leaving the produce …
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Molecular Characterization of Spinach (Spinacia Oleracea) Microbial Community Structure and its Interaction With Escherichia coli O157:H7 in Modified Atmosphere Conditions
Leafy greens like lettuce and spinach are a common vehicle for foodborne illness in United States. It is unknown if native plant epiphytic bacteria may play a role in the establishment of enteric pathogens on leaf surfaces. The objective of this study was to characterize the bacterial communities …
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The Effects of Modified Atmosphere Packaging on Toxin Production by Clostridium botulinum in Raw Aquacultured Flounder Fillets and Fully Cooked Breaded and Battered Pollock Portions
Fish products under vacuum (VAC) and/or modified atmosphere packaging (MAP) conditions can have a significantly extended shelf life. Prevention of toxin production by Clostridium botulinum is essential for processors of VAC and MAP refrigerated fishery products. The objective of this study was to …
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Survival of Escherichia coli O157:H7 on cut and whole surfaces of spinach and leaf lettuce, packaged under modified atmospheric conditions
… of lettuce and spinach on the market is sold in modified atmosphere packaging as ready to eat salad mixes. The objectives of this study were to determine the effects of modified atmosphere, storage temperature, and inoculum size on survival of E. coli O157:H7 on cut and whole leaf lettuce and …
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Preventing Oxidation of Dairy Powders Using Oxygen Removal Packaging
… nonfat, and buttermilk) were packaged in a modified atmosphere with a novel palladium-based oxygen removing catalyst and stored for eight weeks at 50°C. Powders stored in air with no catalyst and powders stored with the catalyst in an atmosphere modified to contain 5.7% hydrogen in nitrogen …
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Factors affecting the quality and shelf-life of cooked chilled foods with special reference to full meal vending.
… result in high food wastage rates. Vacuum and modified atmosphere packaging (MAP) are known to improve stored raw food quality. In order to optimize the quality and shelf-life of vended foods, the effects of these techniques and length of storage time on menu items were studied. Chicken …
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Use of Antimycotics, Modified Atmospheres, and Packaging to Affect Mold Spoilage in Dairy Products
… oxygen scavengers and a 25% CO₂:75% N₂ modified atmosphere on the growth of <I>Penicillium roqueforti</I> in shredded cheddar and mozzarella cheese stored at 10°C for 0, 60, 120, or 180 day was studied. Microbiological and sensory testing was assessed on 0, 7, 14 and 21 days after …
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Understanding consumer liking of beef with particular reference to flavour
… methods (vacuum skin packaging, overwrapped, modified atmosphere packaging) had significant impact on the quantities of volatile compounds. Beef aged for longer period had higher quantities of Strecker aldehydes, n-ketones and pyrazines. Differences in lipid content may explain the differences …
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Comparative Phenotypic and Transcriptional Differences of Campylobacter jejuni When Challenged with Low Molecular Weight Chitosan
… industry, including natural products such as modified atmosphere and salt. Other natural antimicrobials are shown to possess antibacterial activity. Chitosan, a natural antimicrobial, has promising uses in food production. However, little is known about the transcriptional differences of C. …
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Development and assessment of new sensor systems in food packaging applications
… development as these are key gases used in modified atmosphere packaging (MAP) of food. The first and second experimental chapters (chapter 2 and 3) describe the development of O2, pH and CO2 solid state sensors and its (potential) use for food packaging applications. A dual-analyte sensor …
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