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.

Sensory Evaluation of Ground Beef Stored in High-oxygen Modified Atmosphere Packaging

2002 ◽  
Vol 67 (9) ◽  
pp. 3493-3496 ◽  
Author(s):  
P. Jayasingh ◽  
D.P. Cornforth ◽  
C.P. Brennand ◽  
C.E. Carpenter ◽  
D.R. Whittier
Keyword(s):  
Sensory Evaluation ◽  
Modified Atmosphere Packaging ◽  
Ground Beef ◽  
High Oxygen ◽  
Modified Atmosphere

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.

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.

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