A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal
As filter-feeding animals farmed in water bodies exposed to anthropogenic influences, oysters can be both useful bioremediators and high-risk foodstuffs, considering that they are typically consumed raw. Understanding the dynamic of bacterial and viral load in Pacific oyster ( Crassostrea gigas ) ti...
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MDPI AG
2023
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Online Access: | https://doi.org/10.3390/microorganisms11020338 https://doaj.org/article/9d31fcd44582450bbddb08da2ed22886 |
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ftdoajarticles:oai:doaj.org/article:9d31fcd44582450bbddb08da2ed22886 2023-05-15T15:58:41+02:00 A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal Inês C. Rodrigues Nânci Santos-Ferreira Daniela Silva Carla Chiquelho da Silva Ângela S. Inácio Maria São José Nascimento Paulo Martins da Costa 2023-01-01T00:00:00Z https://doi.org/10.3390/microorganisms11020338 https://doaj.org/article/9d31fcd44582450bbddb08da2ed22886 EN eng MDPI AG https://www.mdpi.com/2076-2607/11/2/338 https://doaj.org/toc/2076-2607 doi:10.3390/microorganisms11020338 2076-2607 https://doaj.org/article/9d31fcd44582450bbddb08da2ed22886 Microorganisms, Vol 11, Iss 338, p 338 (2023) oyster farming waters Escherichia coli salmonella antimicrobial resistance norovirus Biology (General) QH301-705.5 article 2023 ftdoajarticles https://doi.org/10.3390/microorganisms11020338 2023-02-26T01:29:09Z As filter-feeding animals farmed in water bodies exposed to anthropogenic influences, oysters can be both useful bioremediators and high-risk foodstuffs, considering that they are typically consumed raw. Understanding the dynamic of bacterial and viral load in Pacific oyster ( Crassostrea gigas ) tissues, hemolymph, outer shell surface biofilm, and farming water is therefore of great importance for microbiological risk assessment. A one-year survey of oysters collected from a class B production area (Canal de Mira, on the Portuguese western coast) revealed that these bivalve mollusks have a good depurating capacity with regard to bacteria, as Salmonella spp. and viable enterococci were not detected in any oyster flesh (edible portion) samples, despite the fact that these bacteria have regularly been found in the farming waters. Furthermore, the level of Escherichia coli contamination was clearly below the legal limit in oysters reared in a class B area (>230–≤4600 MPN E. coli /100 g). On the contrary, norovirus was repeatedly detected in the digestive glands of oysters sampled in autumn, winter, and spring. However, their presence in farming waters was only detected during winter. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Directory of Open Access Journals: DOAJ Articles Mira ENVELOPE(10.500,10.500,-70.417,-70.417) Pacific Microorganisms 11 2 338 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
oyster farming waters Escherichia coli salmonella antimicrobial resistance norovirus Biology (General) QH301-705.5 |
spellingShingle |
oyster farming waters Escherichia coli salmonella antimicrobial resistance norovirus Biology (General) QH301-705.5 Inês C. Rodrigues Nânci Santos-Ferreira Daniela Silva Carla Chiquelho da Silva Ângela S. Inácio Maria São José Nascimento Paulo Martins da Costa A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal |
topic_facet |
oyster farming waters Escherichia coli salmonella antimicrobial resistance norovirus Biology (General) QH301-705.5 |
description |
As filter-feeding animals farmed in water bodies exposed to anthropogenic influences, oysters can be both useful bioremediators and high-risk foodstuffs, considering that they are typically consumed raw. Understanding the dynamic of bacterial and viral load in Pacific oyster ( Crassostrea gigas ) tissues, hemolymph, outer shell surface biofilm, and farming water is therefore of great importance for microbiological risk assessment. A one-year survey of oysters collected from a class B production area (Canal de Mira, on the Portuguese western coast) revealed that these bivalve mollusks have a good depurating capacity with regard to bacteria, as Salmonella spp. and viable enterococci were not detected in any oyster flesh (edible portion) samples, despite the fact that these bacteria have regularly been found in the farming waters. Furthermore, the level of Escherichia coli contamination was clearly below the legal limit in oysters reared in a class B area (>230–≤4600 MPN E. coli /100 g). On the contrary, norovirus was repeatedly detected in the digestive glands of oysters sampled in autumn, winter, and spring. However, their presence in farming waters was only detected during winter. |
format |
Article in Journal/Newspaper |
author |
Inês C. Rodrigues Nânci Santos-Ferreira Daniela Silva Carla Chiquelho da Silva Ângela S. Inácio Maria São José Nascimento Paulo Martins da Costa |
author_facet |
Inês C. Rodrigues Nânci Santos-Ferreira Daniela Silva Carla Chiquelho da Silva Ângela S. Inácio Maria São José Nascimento Paulo Martins da Costa |
author_sort |
Inês C. Rodrigues |
title |
A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal |
title_short |
A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal |
title_full |
A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal |
title_fullStr |
A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal |
title_full_unstemmed |
A One-Year Systematic Study to Assess the Microbiological Profile in Oysters from a Commercial Harvesting Area in Portugal |
title_sort |
one-year systematic study to assess the microbiological profile in oysters from a commercial harvesting area in portugal |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/microorganisms11020338 https://doaj.org/article/9d31fcd44582450bbddb08da2ed22886 |
long_lat |
ENVELOPE(10.500,10.500,-70.417,-70.417) |
geographic |
Mira Pacific |
geographic_facet |
Mira Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Microorganisms, Vol 11, Iss 338, p 338 (2023) |
op_relation |
https://www.mdpi.com/2076-2607/11/2/338 https://doaj.org/toc/2076-2607 doi:10.3390/microorganisms11020338 2076-2607 https://doaj.org/article/9d31fcd44582450bbddb08da2ed22886 |
op_doi |
https://doi.org/10.3390/microorganisms11020338 |
container_title |
Microorganisms |
container_volume |
11 |
container_issue |
2 |
container_start_page |
338 |
_version_ |
1766394454660349952 |