Variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates
When cod (Gadus morhua morhua) and headless white shrimp (Penaeus setiferus) were gamma irradiated with a series of low-ionizing radiation doses, a "shoulder(s)" was observed in the graph (log microbial counts versus dose) in the approximate range of 25 to 75 krads. When the microbiologica...
Published in: | Applied and Environmental Microbiology |
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Language: | English |
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American Society for Microbiology
1977
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Online Access: | http://dx.doi.org/10.1128/aem.33.2.323-327.1977 https://journals.asm.org/doi/pdf/10.1128/aem.33.2.323-327.1977 |
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crasmicro:10.1128/aem.33.2.323-327.1977 2023-05-15T16:19:10+02:00 Variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates Green, J H Kaylor, J D 1977 http://dx.doi.org/10.1128/aem.33.2.323-327.1977 https://journals.asm.org/doi/pdf/10.1128/aem.33.2.323-327.1977 en eng American Society for Microbiology https://journals.asm.org/non-commercial-tdm-license Applied and Environmental Microbiology volume 33, issue 2, page 323-327 ISSN 0099-2240 1098-5336 Ecology Applied Microbiology and Biotechnology Food Science Biotechnology journal-article 1977 crasmicro https://doi.org/10.1128/aem.33.2.323-327.1977 2022-10-30T09:12:30Z When cod (Gadus morhua morhua) and headless white shrimp (Penaeus setiferus) were gamma irradiated with a series of low-ionizing radiation doses, a "shoulder(s)" was observed in the graph (log microbial counts versus dose) in the approximate range of 25 to 75 krads. When the microbiological survivors were differentiated into total counts, proteolytic and pseudomonad-type bacteria, it was observed that the pseudomonad-type bacteria were rapidly destroyed by 25 krads and that proteolytic bacteria were destroyed at a faster rate than the rest of the microorganisms. When cod fillets and shrimp were compared with their respective homogenates and irradiated at doses of 0, 10, 20, 30, 40, 50, 60, 80, 100, 150, 200, and 300 krads, the homogenates did not exhibit the characteristic shoulders. A further experiment was designed to test surface versus uniform dispersion of microorganisms on/in gelatin disks subjects to low doses of irradiation. Differences were found that may explain the observed differences between solid food materials such as fish fillets and shrimp and their homogenates. Article in Journal/Newspaper Gadus morhua ASM Journals (American Society for Microbiology - via Crossref) Applied and Environmental Microbiology 33 2 323 327 |
institution |
Open Polar |
collection |
ASM Journals (American Society for Microbiology - via Crossref) |
op_collection_id |
crasmicro |
language |
English |
topic |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology |
spellingShingle |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology Green, J H Kaylor, J D Variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates |
topic_facet |
Ecology Applied Microbiology and Biotechnology Food Science Biotechnology |
description |
When cod (Gadus morhua morhua) and headless white shrimp (Penaeus setiferus) were gamma irradiated with a series of low-ionizing radiation doses, a "shoulder(s)" was observed in the graph (log microbial counts versus dose) in the approximate range of 25 to 75 krads. When the microbiological survivors were differentiated into total counts, proteolytic and pseudomonad-type bacteria, it was observed that the pseudomonad-type bacteria were rapidly destroyed by 25 krads and that proteolytic bacteria were destroyed at a faster rate than the rest of the microorganisms. When cod fillets and shrimp were compared with their respective homogenates and irradiated at doses of 0, 10, 20, 30, 40, 50, 60, 80, 100, 150, 200, and 300 krads, the homogenates did not exhibit the characteristic shoulders. A further experiment was designed to test surface versus uniform dispersion of microorganisms on/in gelatin disks subjects to low doses of irradiation. Differences were found that may explain the observed differences between solid food materials such as fish fillets and shrimp and their homogenates. |
format |
Article in Journal/Newspaper |
author |
Green, J H Kaylor, J D |
author_facet |
Green, J H Kaylor, J D |
author_sort |
Green, J H |
title |
Variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates |
title_short |
Variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates |
title_full |
Variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates |
title_fullStr |
Variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates |
title_full_unstemmed |
Variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates |
title_sort |
variations in the microbial log reduction curves of irradiated cod fillets, shrimp, and their respective homogenates |
publisher |
American Society for Microbiology |
publishDate |
1977 |
url |
http://dx.doi.org/10.1128/aem.33.2.323-327.1977 https://journals.asm.org/doi/pdf/10.1128/aem.33.2.323-327.1977 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Applied and Environmental Microbiology volume 33, issue 2, page 323-327 ISSN 0099-2240 1098-5336 |
op_rights |
https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aem.33.2.323-327.1977 |
container_title |
Applied and Environmental Microbiology |
container_volume |
33 |
container_issue |
2 |
container_start_page |
323 |
op_container_end_page |
327 |
_version_ |
1766005494388883456 |