Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets
The prevalence of Listeria monocytogenes in retail roe, as well as the microbiological and sensory qualities of the roe, were studied for three fish species under three different storage conditions. A total of 147 Finnish rainbow trout (Oncorhynchus mykiss ), whitefish ( Coregonus lavaretus ), venda...
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ftvttcrispub:oai:cris.vtt.fi:publications/12c52697-121e-4905-865a-3faa70e18cd2 2023-05-15T15:47:17+02:00 Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets Miettinen, Hanna Arvola, Anne Luoma, Tiina Wirtanen, Gun 2003 https://cris.vtt.fi/en/publications/12c52697-121e-4905-865a-3faa70e18cd2 https://doi.org/10.4315/0362-028X-66.10.1832 eng eng info:eu-repo/semantics/closedAccess Miettinen , H , Arvola , A , Luoma , T & Wirtanen , G 2003 , ' Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets ' , Journal of Food Protection , vol. 66 , no. 10 , pp. 1832-1839 . https://doi.org/10.4315/0362-028X-66.10.1832 article 2003 ftvttcrispub https://doi.org/10.4315/0362-028X-66.10.1832 2022-10-13T13:56:12Z The prevalence of Listeria monocytogenes in retail roe, as well as the microbiological and sensory qualities of the roe, were studied for three fish species under three different storage conditions. A total of 147 Finnish rainbow trout (Oncorhynchus mykiss ), whitefish ( Coregonus lavaretus ), vendace ( Coregonus albula ), and burbot (Lota lota) roe samples were bought fresh, frozen, or frozen-thawed from Finnish retail markets. The overall prevalence of L. monocytogenes was 5%; however, the prevalence of the pathogen in fresh roe was 18%. Fresh-bought roe tested positive for Listeria spp. and for L. monocytogenes , respectively, 5 and 20 times as often as did frozen and frozen-thawed roe products combined. The microbiological quality (analyzed as total aerobic heterotrophic bacteria and coliform bacteria) of 78% of the roe samples was unacceptable. Frozen roe samples were found to have the best microbiological quality. According to the results of a sensory evaluation, at least one sensory attribute (appearance, odor freshness, texture, and freshness of taste) was unacceptable for 29% of the roe samples studied. The sensory quality of roe samples bought fresh was better than that of roe samples bought frozen or frozen-thawed. From the results of this study, it is concluded that both the microbiological and the sensory qualities of roe at the retail level need to be improved. Article in Journal/Newspaper Burbot Lota lota lota VTT's Research Information Portal Journal of Food Protection 66 10 1832 1839 |
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Open Polar |
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VTT's Research Information Portal |
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ftvttcrispub |
language |
English |
description |
The prevalence of Listeria monocytogenes in retail roe, as well as the microbiological and sensory qualities of the roe, were studied for three fish species under three different storage conditions. A total of 147 Finnish rainbow trout (Oncorhynchus mykiss ), whitefish ( Coregonus lavaretus ), vendace ( Coregonus albula ), and burbot (Lota lota) roe samples were bought fresh, frozen, or frozen-thawed from Finnish retail markets. The overall prevalence of L. monocytogenes was 5%; however, the prevalence of the pathogen in fresh roe was 18%. Fresh-bought roe tested positive for Listeria spp. and for L. monocytogenes , respectively, 5 and 20 times as often as did frozen and frozen-thawed roe products combined. The microbiological quality (analyzed as total aerobic heterotrophic bacteria and coliform bacteria) of 78% of the roe samples was unacceptable. Frozen roe samples were found to have the best microbiological quality. According to the results of a sensory evaluation, at least one sensory attribute (appearance, odor freshness, texture, and freshness of taste) was unacceptable for 29% of the roe samples studied. The sensory quality of roe samples bought fresh was better than that of roe samples bought frozen or frozen-thawed. From the results of this study, it is concluded that both the microbiological and the sensory qualities of roe at the retail level need to be improved. |
format |
Article in Journal/Newspaper |
author |
Miettinen, Hanna Arvola, Anne Luoma, Tiina Wirtanen, Gun |
spellingShingle |
Miettinen, Hanna Arvola, Anne Luoma, Tiina Wirtanen, Gun Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets |
author_facet |
Miettinen, Hanna Arvola, Anne Luoma, Tiina Wirtanen, Gun |
author_sort |
Miettinen, Hanna |
title |
Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets |
title_short |
Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets |
title_full |
Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets |
title_fullStr |
Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets |
title_full_unstemmed |
Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets |
title_sort |
prevalence of listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from finnish retail markets |
publishDate |
2003 |
url |
https://cris.vtt.fi/en/publications/12c52697-121e-4905-865a-3faa70e18cd2 https://doi.org/10.4315/0362-028X-66.10.1832 |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_source |
Miettinen , H , Arvola , A , Luoma , T & Wirtanen , G 2003 , ' Prevalence of Listeria monocytogenes in, and microbiological and sensory quality of, rainbow trout, whitefish, and vendace roes from Finnish retail markets ' , Journal of Food Protection , vol. 66 , no. 10 , pp. 1832-1839 . https://doi.org/10.4315/0362-028X-66.10.1832 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.4315/0362-028X-66.10.1832 |
container_title |
Journal of Food Protection |
container_volume |
66 |
container_issue |
10 |
container_start_page |
1832 |
op_container_end_page |
1839 |
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1766382074666680320 |