One hundred and ninety-six boneless beef roasts (longissimus muscles) were vacuum packaged. Twenty-eight roasts remained vacuum packaged to serve as controls while the remaining packages were injected with one of six gas mixtures: (a) 100% O2, (b) 20% CO2 + 80% N2, (c) 50% CO2 + 50%O2, (d) 20% CO2 + 80% O2, (e) 25% CO2 + 25% O2 +50% N2 or(f) 51% CO2 + 30% O2 + 18% N2 + 1% CO. Five cuts from each packaging treatment were stored in a 1-3-C cooler for 7, 14, 21, 28 or 35 days and subsequently evaluated for relative percentages of various gases in the intact packages, off-odor, surface discoloration. overall appearance, metmyoglobin percentages and palatability. Packages initially injected with modified gas atmospheres containing O2 increased in relative percentages of CO2 with advancing storage times. Roasts stored in modified atmospheres initially containing high levels of O2 exhibited a greater incidence of off-odor, more surface discoloration, lower overall appearance ratings, shorter retail caselife and lower overall palatability ratings than vacuum-packaged roasts or roasts stored in an atmosphere initially containing 20% CO2 + 80% N2.
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Research Article|
March 01 1979
Physical and Sensory Characteristics of Beef Packaged in Modified Gas Atmospheres
S. C. SEIDEMAN;
S. C. SEIDEMAN
Meats and Muscle Biology Section, Department of Animal Science, Texas Agricultural Experiment Station, Texas A&M University, College Station, Texas 77843
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Z. L. CARPENTER;
Z. L. CARPENTER
Meats and Muscle Biology Section, Department of Animal Science, Texas Agricultural Experiment Station, Texas A&M University, College Station, Texas 77843
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G. C. SMITH;
G. C. SMITH
Meats and Muscle Biology Section, Department of Animal Science, Texas Agricultural Experiment Station, Texas A&M University, College Station, Texas 77843
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C. W. DILL;
C. W. DILL
Meats and Muscle Biology Section, Department of Animal Science, Texas Agricultural Experiment Station, Texas A&M University, College Station, Texas 77843
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C. VANDERZANT
C. VANDERZANT
Meats and Muscle Biology Section, Department of Animal Science, Texas Agricultural Experiment Station, Texas A&M University, College Station, Texas 77843
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J Food Prot (1979) 42 (3): 233–239.
Article history
Received:
July 05 1978
Citation
S. C. SEIDEMAN, Z. L. CARPENTER, G. C. SMITH, C. W. DILL, C. VANDERZANT; Physical and Sensory Characteristics of Beef Packaged in Modified Gas Atmospheres. J Food Prot 1 March 1979; 42 (3): 233–239. doi: https://doi.org/10.4315/0362-028X-42.3.233
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