A Comparison of Vacuum Packaging Systems and Films on the Physical Characteristics of Beef Cuts

One hundred and fifty beef knuckles, 140 beef ribs, and 60 arm chucks were vacuum packaged by two systems (nozzle and chamber vacuumizing machines) in bags manufactured from films differing in oxygen and moisture vapor transmission rates. Primal cuts in each system were randomly assigned to storage periods of 7, 14, 21, 28, or 35 days. In addition, leaker packages were assigned storage periods of 7, 14. or 21 days. At the termination of each storage period, cuts were evaluated for degree of vacuum, appearance of fat cover, surface discoloration, and total desirability. The combination of a chamber vacuumizing machine and use of a packaging film with a low oxygen transmission rate resulted in superior fat appearance ratings, reduced surface discoloration, and higher total desirability scores. Cuts from leaker packages usually received the lowest ratings for these attributes.

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Effect of High-Barrier Packaging Films with Different Oxygen Transmission Rates on the Growth of Lactobacillus sp. on Meat Fillets

Journal of Food Protection ◽

10.4315/0362-028x-69.4.943 ◽

2006 ◽

Vol 69 (4) ◽

pp. 943-947 ◽

Cited By ~ 13

Author(s):

E. TSIGARIDA ◽

G.-J. E. NYCHAS

Keyword(s):

Growth Rate ◽

Transmission Rate ◽

Packaging Film ◽

Packaging Films ◽

Transmission Rates ◽

Oxygen Transmission Rate ◽

Microbial Association ◽

Final Population ◽

Equal Importance ◽

Oxygen Transmission

The goal of this study was to determine the combined effect of (i) the oxygen transmission rate (OTR) of packaging film, often called oxygen film permeability or film permeability and (ii) temperature on the growth rate of the main prevailing organism, Lactobacillus sp., in 100% CO2-packed sterile meat fillets. Multifactorial experiments were designed to study the effect of OTR and temperature (0, 5, 8, and 10°C) on the growth rate of Lactobacillus sp. inoculated on sterile meat fillets under 100% CO2 and aerobic conditions. The packaging conditions (air or 100% CO2) and the film OTR significantly affected the growth rate of Lactobacillus sp. only at temperatures higher than 0°C. Low-permeable films with different OTRs did not affect the final population of the bacterium, but the growth rate was significantly changed. The correlation of an ephemeral microbial association with a low spoilage potential (e.g., lactic acid bacteria) or their growth retardation cannot always be assumed unless other determinants (e.g., OTR) of equal importance are taken into account. The present study provides information that can be of benefit to industry and the consumer.

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Opto-chemical method for ultra-low oxygen transmission rate measurement

2009 IEEE Sensors ◽

10.1109/icsens.2009.5398515 ◽

2009 ◽

Cited By ~ 2

Author(s):

M. Tscherner ◽

C. Konrad ◽

A. Bizzarri ◽

M. Suppan ◽

M. Cajlakovic ◽

...

Keyword(s):

Chemical Method ◽

Transmission Rate ◽

Rate Measurement ◽

Low Oxygen ◽

Oxygen Transmission Rate ◽

Oxygen Transmission

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Enhancing the Oxygen Barrier Properties of Nanocellulose at High Humidity: Numerical and Experimental Assessment

Sustainable Chemistry ◽

10.3390/suschem1030014 ◽

2020 ◽

Vol 1 (3) ◽

pp. 198-208

Author(s):

Ali H. Tayeb ◽

Mehdi Tajvidi ◽

Douglas Bousfield

Keyword(s):

Relative Humidity ◽

Hot Pressing ◽

Transmission Rate ◽

Cellulose Nanofibrils ◽

High Relative Humidity ◽

Oxygen Barrier ◽

Low Oxygen ◽

Barrier Materials ◽

Oxygen Transmission Rate ◽

Oxygen Transmission

Films formed from cellulose nanofibrils (CNFs) are known to be good barrier materials against oxygen, but they lose this feature once placed in humid conditions. To tackle this issue, we applied an optimized pressing condition under elevated temperature to increase the films’ density and improve their barrier performance. Furthermore, a water barrier coating was employed on the surfaces to control the moisture uptake at high relative humidity (RH). Neat self-standing films of CNF with the basis weight of 70 g/m2 were made through a filtration technique and pressed for 1 hour at 130 °C. The resulting nanostructures were covered on both sides using a water-borne barrier layer. Hot-pressing resulted in a significant reduction in oxygen transmission rate (OTR) values, from 516.7 to 3.6 (cm3/(m2·day)) and to some degree, helped preserve the reduced oxygen transmission at high relative humidity. Introducing 35 g/m2 of latex coating layer on both sides limited the films’ swelling at 90% RH for about 4 h and maintained the OTR at the same level. A finite element model was used to predict the dynamic uptake of water into the systems. The model was found to over-predict the rate of water uptake for uncoated samples but gave the correct order of magnitude results for samples that were coated. The obtained data confirmed the positive effect of hot-pressing combined with coating to produce a film with low oxygen transmission rate and potential to maintain its oxygen barrier feature at high relative humidity.

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Effect of Film Oxygen Transmission Rate on Lean Color and Microbiological Characteristics of Vacuum-Packaged Beef Knuckles

Journal of Food Protection ◽

10.4315/0362-028x-49.11.917 ◽

1986 ◽

Vol 49 (11) ◽

pp. 917-919 ◽

Cited By ~ 4

Author(s):

J. W. SAVELL ◽

D. B. GRIFFIN ◽

C. W. DILL ◽

G. R. ACUFF ◽

C. VANDERZANT

Keyword(s):

Relative Humidity ◽

Leuconostoc Mesenteroides ◽

Transmission Rate ◽

Refrigerated Storage ◽

Transmission Rates ◽

Oxygen Transmission Rate ◽

Microbiological Characteristics ◽

Brown Discoloration ◽

Packaged Beef ◽

Oxygen Transmission

Seventy-two beef knuckles were packaged (n = 12) in each of six different bag types with oxygen transmission rates (OTR) of 1, 10, 12, 13, 30 and 400 cc/m2/24 h at 4°C and 100% relative humidity to study brown discoloration of knuckles during refrigerated storage. Knuckles in bag types of OTR of 1 and 12 cc did not discolor as compared to those in bags with higher OTR (30 and 400 cc) probably due to differences in oxygen tension in the package and in the types of bacteria present. Deterioration of lean color of knuckles in some bag types of low OTR appeared associated with large percentages of Leuconostoc mesenteroides in the microflora.

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