Growth and survival of Salmonella in modified atmosphere packaged rainbow trout (Oncorhynchus mykiss) fillets
The growth and survival of Salmonella in rainbow trout fillets stored under vacuum, aerobic conditions, or a modified atmosphere of carbon dioxide (CO2):nitrogen(N2) (60:40) with or without a carbonic acid dip treatment was evaluated at 3 and 10°C. In addition, the effect of these storage conditions...
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1994
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ftunivtennknox:oai:trace.tennessee.edu:utk_gradthes-8519 2023-05-15T15:52:32+02:00 Growth and survival of Salmonella in modified atmosphere packaged rainbow trout (Oncorhynchus mykiss) fillets Denton, Melissa Edlin 1994-05-01T07:00:00Z application/pdf https://trace.tennessee.edu/utk_gradthes/6944 https://trace.tennessee.edu/cgi/viewcontent.cgi?article=8519&context=utk_gradthes unknown TRACE: Tennessee Research and Creative Exchange https://trace.tennessee.edu/utk_gradthes/6944 https://trace.tennessee.edu/cgi/viewcontent.cgi?article=8519&context=utk_gradthes Masters Theses text 1994 ftunivtennknox 2022-12-15T18:40:51Z The growth and survival of Salmonella in rainbow trout fillets stored under vacuum, aerobic conditions, or a modified atmosphere of carbon dioxide (CO2):nitrogen(N2) (60:40) with or without a carbonic acid dip treatment was evaluated at 3 and 10°C. In addition, the effect of these storage conditions on the growth of aerobic, psychrotrophic, lactic, and coliform bacteria was also examined. The Salmonella inoculum level was approximately log 4 CFU/g trout, although direct plating resulted in initial counts of log 3.0 to 3.5 CFU/g. The growth of Salmonella at 10°C was significantly higher (p < 0.05) in trout held under vacuum and air packaging than in trout held under the CO2- modified atmosphere. Salmonella numbers declined in the trout samples stored at 3°C, with significantly greater (p < 0.05) survival under air packaging than in vacuum and CO2- modified atmosphere packaging. The growth of aerobic, psychrotrophic, lactic, and coliform bacteria in the trout fillets was significantly lower (p < 0.05) under the modified atmosphere of CO2:N2 (60:40) than air and vacuum packaging at 3 and 10°C with a shelf-life extension of approximately 3 days at 10°C and 9 days at 3°C. The carbonic acid dip had some initial effect upon the growth of aerobic and coliform bacteria at 10°C, although no extension of shelf life was evident. Text Carbonic acid University of Tennessee, Knoxville: Trace |
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University of Tennessee, Knoxville: Trace |
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The growth and survival of Salmonella in rainbow trout fillets stored under vacuum, aerobic conditions, or a modified atmosphere of carbon dioxide (CO2):nitrogen(N2) (60:40) with or without a carbonic acid dip treatment was evaluated at 3 and 10°C. In addition, the effect of these storage conditions on the growth of aerobic, psychrotrophic, lactic, and coliform bacteria was also examined. The Salmonella inoculum level was approximately log 4 CFU/g trout, although direct plating resulted in initial counts of log 3.0 to 3.5 CFU/g. The growth of Salmonella at 10°C was significantly higher (p < 0.05) in trout held under vacuum and air packaging than in trout held under the CO2- modified atmosphere. Salmonella numbers declined in the trout samples stored at 3°C, with significantly greater (p < 0.05) survival under air packaging than in vacuum and CO2- modified atmosphere packaging. The growth of aerobic, psychrotrophic, lactic, and coliform bacteria in the trout fillets was significantly lower (p < 0.05) under the modified atmosphere of CO2:N2 (60:40) than air and vacuum packaging at 3 and 10°C with a shelf-life extension of approximately 3 days at 10°C and 9 days at 3°C. The carbonic acid dip had some initial effect upon the growth of aerobic and coliform bacteria at 10°C, although no extension of shelf life was evident. |
format |
Text |
author |
Denton, Melissa Edlin |
spellingShingle |
Denton, Melissa Edlin Growth and survival of Salmonella in modified atmosphere packaged rainbow trout (Oncorhynchus mykiss) fillets |
author_facet |
Denton, Melissa Edlin |
author_sort |
Denton, Melissa Edlin |
title |
Growth and survival of Salmonella in modified atmosphere packaged rainbow trout (Oncorhynchus mykiss) fillets |
title_short |
Growth and survival of Salmonella in modified atmosphere packaged rainbow trout (Oncorhynchus mykiss) fillets |
title_full |
Growth and survival of Salmonella in modified atmosphere packaged rainbow trout (Oncorhynchus mykiss) fillets |
title_fullStr |
Growth and survival of Salmonella in modified atmosphere packaged rainbow trout (Oncorhynchus mykiss) fillets |
title_full_unstemmed |
Growth and survival of Salmonella in modified atmosphere packaged rainbow trout (Oncorhynchus mykiss) fillets |
title_sort |
growth and survival of salmonella in modified atmosphere packaged rainbow trout (oncorhynchus mykiss) fillets |
publisher |
TRACE: Tennessee Research and Creative Exchange |
publishDate |
1994 |
url |
https://trace.tennessee.edu/utk_gradthes/6944 https://trace.tennessee.edu/cgi/viewcontent.cgi?article=8519&context=utk_gradthes |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Masters Theses |
op_relation |
https://trace.tennessee.edu/utk_gradthes/6944 https://trace.tennessee.edu/cgi/viewcontent.cgi?article=8519&context=utk_gradthes |
_version_ |
1766387686768115712 |