Effect of oxygen concentration in modified atmosphere packaging on color changes of the M. longissimus thoraces et lumborum from dark cutting beef carcasses

Meat Science ◽  
2020 ◽  
Vol 161 ◽  
pp. 107999 ◽  
Author(s):  
Xiao Lu ◽  
Daren P. Cornforth ◽  
Charles E. Carpenter ◽  
Lixian Zhu ◽  
Xin Luo
Keyword(s):  
Oxygen Concentration ◽  
Modified Atmosphere Packaging ◽  
Modified Atmosphere ◽  
Color Changes ◽  
Beef Carcasses ◽  
Effect Of Oxygen

Influence of Modified Atmosphere Packaging on the Microflora and Quality of Fresh Bell Peppers

1990 ◽  
Vol 53 (3) ◽  
pp. 255-257 ◽  
Author(s):  
R. E. BRACKETT
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Sensory Quality ◽  
Modified Atmosphere Packaging ◽  
Modified Atmosphere ◽  
Surface Ph ◽  
Color Changes ◽  
Bell Peppers ◽  
Yeasts And Molds

Fresh bell peppers were individually shrink-wrapped in film (SW), sealed in gas-flushed (5% O2, 10% CO2, 85% N2) film (GP) pouches, or stored unpackaged in cardboard packing crates (CN). All samples were stored at 13°C and changes in populations of total aerobic microorganisms, yeasts and molds, members of Enterobacteriaceae, and lactic acid bacteria were determined. In addition, overall sensory quality, color changes, and surface pH were monitored. SW peppers developed higher populations of total aerobic microorganisms, yeasts and molds, and Enterobacteriaceae than did CN peppers, but populations of other groups of microorganisms were similar. Color and surface pH of peppers did not differ in any of the treatments. SW and GP peppers remained unspoiled at least 6 weeks, whereas CN peppers spoiled in 3 weeks.

Study on High-Oxygen Modified Atmosphere Packaging for Chilled Fresh Pork

2012 ◽  
Vol 200 ◽  
pp. 474-477
Author(s):  
Su Fen Zhao ◽  
Xin Fang Li ◽  
Xiao Yan Liu
Keyword(s):  
Lactic Acid ◽  
Oxygen Concentration ◽  
Modified Atmosphere Packaging ◽  
High Oxygen ◽  
Modified Atmosphere ◽  
Ph Changes ◽  
Period 2 ◽  
Protective Gas

Modified atmosphere packaging (MAP) is used CO2, O2, N2and other protective gas which have different effects to extend the preservation period. 2% salt and 0.3% lactic acid preservative-treated chilled fresh pork are placed controlled group, 45%, 55%, 65%, 75%, 85% of six different concentrations of oxygen with modified atmosphere packaging to test TVB-N and pH changes during storage. The results show that their fresh-keeping are followed by 75%> 65%> 55%> 85%> 45%> CK, and 75% group has the best fresh-keeping effect, and if we continued to increase the oxygen concentration, the fresh-keeping had been worse.

scholarly journals MODIFIED ATMOSPHERE PACKAGING: TEMPERATURE DEPENDENCE OF THE RQ “BREAKPOINT”

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1139c-1139
Author(s):  
Randolph Beaudry ◽  
Arthur Cameron
Keyword(s):  
Carbon Dioxide ◽  
Steady State ◽  
Temperature Dependence ◽  
Oxygen Concentration ◽  
Modified Atmosphere Packaging ◽  
Oxygen Demand ◽  
Carbon Dioxide Production ◽  
Modified Atmosphere ◽  
Lower Oxygen ◽  
The Difference

The steady-state oxygen concentration at which blueberry fruit began to exhibit anaerobic carbon dioxide production. (i.e., the RQ breakpoint) was determined for fruit held at 0, 5, 10, 15, 20 and 25 C using a modified atmosphere packaging (MAP) system. As fruit temperature decreased, the RQ breakpoint occurred at lower oxygen concentrations. The decrease in the RQ breakpoint oxygen is thought to be due to a decreasing oxygen demand of the cooler fruit.The decrease in oxygen demand and concomitant decrease in oxygen flux would have resulted in a decrease in the difference in the oxygen concentrate on between the inside and outside of the fruit and thus decreased the minimum amount of oxygen tolerated. The implications on MAP strategies will be discussed.

scholarly journals Oxygen Consumption by Phalaenopsis Plantlets and Chrysanthemum Cuttings as a Function of Temperature and Time: Model Structure Validation

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 237
Author(s):  
Lieven Van de Vondel ◽  
Annelies Christiaens ◽  
An Vermeulen ◽  
Marie-Christine Van Labeke ◽  
Frank Devlieghere ◽  
...  
Keyword(s):  
Oxygen Consumption ◽  
Oxygen Concentration ◽  
Plant Species ◽  
Respiration Rate ◽  
Oxygen Consumption Rate ◽  
Consumption Rate ◽  
Storage Temperature ◽  
Modified Atmosphere Packaging ◽  
Modified Atmosphere ◽  
Model Structure

Phalaenopsis spp. and Chrysanthemum are ornamentals with an important economic value. Currently, quality loss during storage and transport of plantlets and cuttings is a limiting factor for spreading the workload, broadening the export range, and the use of slower but more environmentally friendly transport. In the agro-food sector, equilibrium modified atmosphere packaging has enhanced the shelf-life of minimally processed produce. The required properties for an equilibrium modified atmosphere packaging system can be estimated from the respiration rate of the packaged commodity under specified atmospheric composition and storage temperature. In this work, a model structure is validated to estimate the respiration rate as a function of oxygen concentration and temperature for Phalaenopsis and Chrysanthemum. The oxygen concentration as a function of time was monitored in a closed system for different storage temperatures. The models show a good fit to the data. The model coefficients were dependent on the plant species and characteristics. The resulting formulae can be used to estimate the oxygen consumption rate of the produce under a range of oxygen concentrations and a temperature range from 15 °C to 32 °C for Phalaenopsis and from 2 °C to 14 °C for Chrysanthemum. The oxygen concentrations for which the formulae are valid depend on the storage temperature and plant species. The models can be used to estimate a dynamic oxygen consumption rate profile during storage and transport.

scholarly journals Postharvest quality response of broccoli florets to combined application of 1-methylcyclopropene and modified atmosphere packaging

2012 ◽  
Vol 21 (4) ◽  
pp. 421-429 ◽  
Author(s):  
Ferhan K. Sabir
Keyword(s):  
Ascorbic Acid ◽  
Combined Treatment ◽  
Modified Atmosphere Packaging ◽  
Titratable Acidity ◽  
Total Phenol ◽  
Postharvest Quality ◽  
Modified Atmosphere ◽  
Color Changes ◽  
Combined Application

Broccoli is rich in health-promoting compounds such as ascorbic acid and glucosinolates. However, amount of such compounds inevitably decrease along with the storage. This study was conducted to investigate the effects of 1-methylcyclopropene (1-MCP) and Modified Atmosphere Packaging (MAP) treatments alone or in combination on postharvest life and quality of broccoli heads during cold storage. MAP and 1-MCP+MAP significantly reduced weight loss, delayed surface color changes and chlorophyll breakdown, maintained visual quality, ascorbic acid, total phenol, soluble solid contents and titratable acidity compared with control as well as 1-MCP treatment. In 1-MCP plus MAP treated florets, approximate 47% and more chlorophyll and 24% more total phenol contents were found compared to control florets. 1-MCP plus MAP application better performed in maintaining the quality of broccoli florets during 28-day-storage. Overall results revealed that combined treatment can be recommended for commercial broccoli storage at 0 °C.

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