Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage
Microbial (colony counts, 16S rRNA gene amplification), chemical (pH, 1H NMR spectroscopy) and sensory changes in raw Atlantic Salmon (Salmo salar) and tuna (Thunnus albacares) fillets stored under vacuum at 3 °C were evaluated over a period of 12 days. Both species of fish are globally important an...
Published in: | International Journal of Food Microbiology |
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Online Access: | http://hdl.handle.net/10138/308725 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/308725 2024-01-07T09:42:16+01:00 Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage Jääskeläinen, Elina Jakobsen, Louise M.A. Hultman, Jenni Eggers, Nina Bertram, Hanne C. Björkroth, Johanna Food Hygiene and Environmental Health Helsinki Institute of Sustainability Science (HELSUS) Arctic Microbial Ecology Department of Microbiology Johanna Björkroth / Principal Investigator Microbial ecology of food spoilage 2019-12-22T22:54:48Z 9 application/pdf http://hdl.handle.net/10138/308725 eng eng Elsevier Scientific Publ. Co 10.1016/j.ijfoodmicro.2018.12.021 Jääskeläinen , E , Jakobsen , L M A , Hultman , J , Eggers , N , Bertram , H C & Björkroth , J 2019 , ' Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage ' , International Journal of Food Microbiology , vol. 293 , pp. 44-52 . https://doi.org/10.1016/j.ijfoodmicro.2018.12.021 RIS: urn:1AB0D4B595D1644F2C6FD02FBEF649FB ORCID: /0000-0002-7172-9945/work/52864497 85059767366 38e31e4f-1ae1-4b68-8a7a-3fd43fb2115b http://hdl.handle.net/10138/308725 000459364400006 cc_by_nc_nd openAccess info:eu-repo/semantics/openAccess Fish quality Photobacterium Pseudomonas BIOGENIC-AMINE S SHELF-LIFE QUALITY VACUUM SEQUENCES PURE SPP PORK 416 Food Science 11832 Microbiology and virology Article acceptedVersion 2019 ftunivhelsihelda 2023-12-14T00:12:03Z Microbial (colony counts, 16S rRNA gene amplification), chemical (pH, 1H NMR spectroscopy) and sensory changes in raw Atlantic Salmon (Salmo salar) and tuna (Thunnus albacares) fillets stored under vacuum at 3 °C were evaluated over a period of 12 days. Both species of fish are globally important and among the ten most consumed fishes in the world. Although the sensory analyses showed a decrease in the quality of both fish species, only the salmon fillets were considered spoiled at the end of the storage period. In salmon, trimethylamine was the main spoilage product and bacterial colony counts reached an average of 7.3 log10 cfu/g. The concentration of glucose decreased and the concentration of organic acids increased during storage revealing glucose fermentation. Photobacterium was the dominating genus in the salmon studied. In the tuna studied, the bacterial colony counts reached only an average of 4.6 log10 cfu/g. The dominating bacteria in tuna were Pseudomonas spp. Glucose levels did not decrease, suggesting that amino acids and lactate most likely acted as carbon sources for bacteria in tuna. In conclusion, the study revealed that salmon was clearly a more perishable fish than tuna. Peer reviewed Article in Journal/Newspaper Atlantic salmon Salmo salar HELDA – University of Helsinki Open Repository International Journal of Food Microbiology 293 44 52 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Fish quality Photobacterium Pseudomonas BIOGENIC-AMINE S SHELF-LIFE QUALITY VACUUM SEQUENCES PURE SPP PORK 416 Food Science 11832 Microbiology and virology |
spellingShingle |
Fish quality Photobacterium Pseudomonas BIOGENIC-AMINE S SHELF-LIFE QUALITY VACUUM SEQUENCES PURE SPP PORK 416 Food Science 11832 Microbiology and virology Jääskeläinen, Elina Jakobsen, Louise M.A. Hultman, Jenni Eggers, Nina Bertram, Hanne C. Björkroth, Johanna Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage |
topic_facet |
Fish quality Photobacterium Pseudomonas BIOGENIC-AMINE S SHELF-LIFE QUALITY VACUUM SEQUENCES PURE SPP PORK 416 Food Science 11832 Microbiology and virology |
description |
Microbial (colony counts, 16S rRNA gene amplification), chemical (pH, 1H NMR spectroscopy) and sensory changes in raw Atlantic Salmon (Salmo salar) and tuna (Thunnus albacares) fillets stored under vacuum at 3 °C were evaluated over a period of 12 days. Both species of fish are globally important and among the ten most consumed fishes in the world. Although the sensory analyses showed a decrease in the quality of both fish species, only the salmon fillets were considered spoiled at the end of the storage period. In salmon, trimethylamine was the main spoilage product and bacterial colony counts reached an average of 7.3 log10 cfu/g. The concentration of glucose decreased and the concentration of organic acids increased during storage revealing glucose fermentation. Photobacterium was the dominating genus in the salmon studied. In the tuna studied, the bacterial colony counts reached only an average of 4.6 log10 cfu/g. The dominating bacteria in tuna were Pseudomonas spp. Glucose levels did not decrease, suggesting that amino acids and lactate most likely acted as carbon sources for bacteria in tuna. In conclusion, the study revealed that salmon was clearly a more perishable fish than tuna. Peer reviewed |
author2 |
Food Hygiene and Environmental Health Helsinki Institute of Sustainability Science (HELSUS) Arctic Microbial Ecology Department of Microbiology Johanna Björkroth / Principal Investigator Microbial ecology of food spoilage |
format |
Article in Journal/Newspaper |
author |
Jääskeläinen, Elina Jakobsen, Louise M.A. Hultman, Jenni Eggers, Nina Bertram, Hanne C. Björkroth, Johanna |
author_facet |
Jääskeläinen, Elina Jakobsen, Louise M.A. Hultman, Jenni Eggers, Nina Bertram, Hanne C. Björkroth, Johanna |
author_sort |
Jääskeläinen, Elina |
title |
Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage |
title_short |
Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage |
title_full |
Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage |
title_fullStr |
Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage |
title_full_unstemmed |
Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage |
title_sort |
metabolomics and bacterial diversity of packaged yellowfin tuna (thunnus albacares) and salmon (salmo salar) show fish species-specific spoilage development during chilled storage |
publisher |
Elsevier Scientific Publ. Co |
publishDate |
2019 |
url |
http://hdl.handle.net/10138/308725 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
10.1016/j.ijfoodmicro.2018.12.021 Jääskeläinen , E , Jakobsen , L M A , Hultman , J , Eggers , N , Bertram , H C & Björkroth , J 2019 , ' Metabolomics and bacterial diversity of packaged yellowfin tuna (Thunnus albacares) and salmon (Salmo salar) show fish species-specific spoilage development during chilled storage ' , International Journal of Food Microbiology , vol. 293 , pp. 44-52 . https://doi.org/10.1016/j.ijfoodmicro.2018.12.021 RIS: urn:1AB0D4B595D1644F2C6FD02FBEF649FB ORCID: /0000-0002-7172-9945/work/52864497 85059767366 38e31e4f-1ae1-4b68-8a7a-3fd43fb2115b http://hdl.handle.net/10138/308725 000459364400006 |
op_rights |
cc_by_nc_nd openAccess info:eu-repo/semantics/openAccess |
container_title |
International Journal of Food Microbiology |
container_volume |
293 |
container_start_page |
44 |
op_container_end_page |
52 |
_version_ |
1787423202751807488 |