|
|
|
| Registros recuperados: 32 | |
|
|
| Griffiths, Andrew M.; Sotelo, Carmen G.; Mendes, Rogerio; Perez-martin, Ricardo I.; Schroeder, Ute; Shorten, Marc; Silva, Helena A.; Verrez-bagnis, Veronique; Mariani, Stefano. |
| Mislabelling of food products has recently received a great deal of public scrutiny, but it remains unclear exactly what methods are being utilised in laboratories testing the authenticity of foods. In order to gain insight into the specific area of the analysis of seafood, a questionnaire focusing on the taxonomic groups typically analysed and the techniques utilised was sent to over one hundred accredited laboratories across the UK, Ireland, Spain, Portugal, France and Germany. Forty-five responded positively, demonstrating significant differences in both the species analysed and methods utilised among the countries included in the survey. Indeed, a diversity of methods was employed across laboratories and efforts to harmonise and/or standardise testing... |
| Tipo: Text |
Palavras-chave: Food testing; Forensically informative nucleotide sequencing; Species identification; DNA barcoding; Fisheries. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00188/29918/28383.pdf |
| |
|
|
| Certad, Gabriela; Follet, Jérôme; Gantois, Nausicaa; Hammouma-ghelboun, Ourida; Guyot, Karine; Benamrouz-vanneste, Sadia; Fréalle, Emilie; Seesao, Yuwalee; Delaire, Baptiste; Creusy, Colette; Even, Gaël; Verrez-bagnis, Veronique; Ryan, Una; Gay, Mélanie; Aliouat-denis, Cécile; Viscogliosi, Eric. |
| Cryptosporidium, a zoonotic pathogen, is able to infect a wide range of hosts including wild and domestic animals, and humans. Although it is well known that some parasites are both fish pathogens and recognized agents of zoonosis with a public health impact, little information is available concerning the prevalence of Cryptosporidium in wild aquatic environments. To evaluate the prevalence of Cryptosporidium spp. in commercially important edible marine fish in different European seas (English channel, North sea, Bay of Biscay, Celtic sea and Mediterranean sea), 1,853 specimens were collected as part of two surveys. Nested PCR followed by sequence analysis at the 18S rRNA gene locus was used to identify Cryptosporidium spp. The overall prevalence of... |
| Tipo: Text |
Palavras-chave: Cryptosporidium; Edible marine fish; 18S rRNA gene; Gp60; Molecular epidemiology; Phylogeny; Novel genotypes; European seas. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00497/60864/64198.pdf |
| |
|
|
| Bojolly, Daline; Doyen, Perine; Le Fur, Bruno; Christaki, Urania; Verrez-bagnis, Veronique; Grard, Thierry. |
| Bigeye tuna (Thunnus obesus) and yellowfin tuna (Thunnus albacares) are among the most widely used tuna species for canning purposes. Not only substitution but also mixing of tuna species is prohibited by the European regulation for canned tuna products. However, as juveniles of bigeye and yellowfin tunas are very difficult to distinguish, unintentional substitutions may occur during the canning process. In this study, two mitochondrial markers from NADH dehydrogenase subunit 2 and cytochrome c oxidase subunit II genes were used to identify bigeye tuna and yellowfin tuna, respectively, utilizing TaqMan qPCR methodology. Two different qPCR-based methods were developed to quantify the percentage of flesh of each species used for can processing. The first one... |
| Tipo: Text |
Palavras-chave: Tuna; Authentication; Quantification; Canned products; TaqMan; QPCR; Species identification; Bigeye tuna (Thunnus obesus); Yellowfin tuna (Thunnus albacares). |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00371/48217/48403.pdf |
| |
|
| |
|
|
| Sotelo, Carmen G.; Velasco, Amaya; Perez-martin, Ricardo, I; Kappel, Kristina; Schroeder, Ute; Verrez-bagnis, Veronique; Jerome, Marc; Mendes, Rogerio; Silva, Helena; Mariani, Stefano; Griffiths, Andrew. |
| Tuna fisheries and processing represent economic activities of paramount importance around the world. Most of these products are traded for human consumption and in general are highly demanded commodities. However, not all tuna products achieve the same market price, some consumers are willing to pay a huge amount of money for certain species (i.e. Japanese market for Bluefin tuna) while other species are rather affordable (i.e. Skipjack tuna), therefore mislabelling has been observed frequently. We collected and analysed 545 tuna samples in six European countries, including fresh, frozen and canned products, and we have investigated whether or not these products were correctly labelled under European and national legislations. We found an overall... |
| Tipo: Text |
|
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00440/55137/56604.pdf |
| |
|
|
| Cheret, Romuald; Chapleau, Nicolas; Delbarre Ladrat, Christine; Verrez-bagnis, Veronique; De Lamballerie, Marie. |
| High pressure is an innovative non-thermal food-preservation technology. We studied the effect of high-pressure treatment up-to 500 MPa for 5 min on physical characteristics of sea bass fillets after 0, 7, and 14 d of refrigerated storage.. Color results exhibited an increase of lightness and a slight change of hue, which might be imperceptible in cooked fish. High-pressure treatment induced a decrease of exudation and water-holding capacity Pressure treatment above 300 MPa provoked higher fish hardness after storage than in untreated sample, proving the ability of high pressure to improve textural, quality of chilled, stored fish fillet. These assessments were corroborated with microstructure observations. We showed that high-pressure treatment at 500 MPa... |
| Tipo: Text |
Palavras-chave: Preservation; Microstructure; Texture profile analysis; High pressure; Fish. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-734.pdf |
| |
|
|
| Seesao, Y.; Audebert, C.; Verrez-bagnis, Veronique; Merlin, S.; Jerome, Marc; Viscogliosi, E.; Dei-cas, E.; Aliouat-denis, C. M.; Gay, Melanie. |
| Different methods were evaluated to extract DNA from pooled nematodes belonging to Anisakis, Contracaecum, Pseudoterranova and Hysterothylacium genera isolated from edible fish. Pooled DNA extraction is the first and compulsory step to allow the identification of a large number of samples through high-throughput DNA sequencing with drastic time and cost reductions. |
| Tipo: Text |
Palavras-chave: Anisakidae; High-throughput sequencing; Nematode; Pooled DNA extraction; Marine fish; COX2. |
| Ano: 2014 |
URL: https://archimer.ifremer.fr/doc/00189/30020/28607.pdf |
| |
|
| |
|
|
| Calvo Dopico, D.; Mendes, R.; Silva, H.a.; Verrez-bagnis, Veronique; Pérez-martín, R.; Sotelo, C.g.. |
| This study aims to investigate the benefits associated with traceability and its relationship to quality. Market research has been conducted in Spain, Portugal, France, UK and Germany. The results show that the expected benefits for consumers related to traceability focus on food safety and quality. Relevant information about traceability should focus on the intrinsic quality attributes highly valued by consumers and food safety. Among them, it highlights the origin, the value of which has been highly appreciated by most consumers in different countries. As regards signalling, consumers rate labelling very favourably, which would have to offer all relevant information on the intrinsic quality attributes. The implementation of technology (e.g. QR) could... |
| Tipo: Text |
Palavras-chave: Labelling; Signal; Consumer behaviour; Traceability; Quality. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00349/46017/46901.pdf |
| |
|
|
| Mariani, Stefano; Griffiths, Andrew M.; Velasco, Amaya; Kappel, Kristina; Jerome, Marc; Perez-martin, Ricardo I.; Schroeder, Ute; Verrez-bagnis, Veronique; Silva, Helena; Vandamme, Sara G.; Boufana, Belgees; Mendes, Rogerio; Shorten, Marc; Smith, Cat; Hankard, Elizabeth; Hook, Samantha A.; Weymer, Alice S.; Gunning, Daryl; Sotelo, Carmen G.. |
| Over the span of a decade, genetic identification methods have progressively exposed the inadequacies of the seafood supply chain, revealing previously unrecognized levels of seafood fraud, raising awareness among the public, and serving as a warning to industry that malpractice will be detected. Here we present the outcome of the latest and largest multi-species, transnational survey of fish labeling accuracy to date, which demonstrates an apparent sudden reduction of seafood mislabeling in Europe. We argue that recent efforts in legislation, governance, and outreach have had a positive impact on industry regulation. Coordinated, technology-based, policy-oriented actions can play a pivotal role in shaping a transparent, sustainable global seafood market... |
| Tipo: Text |
|
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00302/41323/40517.pdf |
| |
|
| |
|
|
| Verrez-bagnis, Veronique. |
| A la question : Qu'est-ce que le surimi ?, l'introduction du rapport annuel d'activité de juin 1985 "Essais préliminaires et premleres études de l'influence des paramètres technologiques sur la texture du surimi et gel de surimi de chinchard (Trachurus trachurus)" a tenté d'apporter une réponse. Après le détail de la fabrication du surimi employée ainsi que les résultats de quelques essais préliminaires permettant de choisir les méthodes de mesures adéquates, nous avions abordé la premiere grande partie du travail - l'optimisation des conditions technologiques - et indiqué les prémices d'une étude sur la microstructure du surimi et du kamaboko. Actuellement la première partie de l'étude est terminée et deux articles "Texture du kamaboko de chinchard... |
| Tipo: Text |
|
| Ano: 1986 |
URL: http://archimer.ifremer.fr/doc/00125/23671/21520.pdf |
| |
|
| |
|
|
| Cheret, Romuald; Delbarre Ladrat, Christine; De Lamballerie Anton, Marie; Verrez-bagnis, Veronique. |
| Post mortem tenderization is one of the most unfavourable quality changes in fish muscle and this contrasts with muscle of mammalian meats. The tenderization can be partly attributed to the acid lysosomal cathepsins and cytosolic neutral calcium-activated calpains. In this study, these proteases from fish and bovine muscles were quantified and compared. The cathepsin B and L activities were in more important amounts in sea bass white muscle than in bovine muscle. On the other hand, cathepsin D activity was 1.4 times higher in meat that in fish muscle, while cathepsin H was negligible in both muscles. Calpain activities were similar in both types of muscle. Moreover, calpastatin (calpain endogenous inhibitor) level is 3.9 times higher in sea bass white... |
| Tipo: Text |
Palavras-chave: Meat; Fish; Protease; Cathepsin; Calpain. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3646.pdf |
| |
|
|
| Gerard, Claudia; Verrez-bagnis, Veronique; Jerome, Marc; Lasne, Emilien. |
| The sea lamprey Petromyzon marinus, which is among the most phylogenetically ancient vertebrates, is a hematophagous ectoparasite that feeds on vertebrates and is considered vulnerable in Europe but is a pest in the North American Great Lakes. We conducted a literature review of helminth parasites of Petromyzon marinus and investigated postmetamorphic lampreys sampled in rivers and northeast Atlantic coastal waters (western France) during spawning migration. Based on the literature review, 16 helminth taxa have been recorded in Petromyzon marinus, among them 14 in North America but only 2 in Europe, with no species in common between these areas. Specific parasites are lacking, and helminth parasites recorded in Petromyzon marinus are mostly opportunistic... |
| Tipo: Text |
Palavras-chave: Sea lamprey; Helminth parasites; Unusual host; Accidental ingestion; Anisakis simplex sensu strict; Nematode. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00268/37964/36040.pdf |
| |
|
|
| Bautista, José M.; Verrez-bagnis, Veronique; Kourti, Naouma. |
| Taxonomy and systematics of most animal species have been described in sufficient detail to permit the classification of practically any organism and, in particular, may be of use in the identification of the species and subspecies for the fish trade and ecological concerns regarding fisheries. However, before FishTrace started there was a lack of fast reference tools that hindered the efficient identification and differentiation of teleosts required in fisheries management, biological and ecological research, and human consumption. This problem could affect several of the socio-economic activities related to Fisheries Policies and therefore, the constitution of a database for identification of fish species of commercial, ecological and zoological interest... |
| Tipo: Text |
Palavras-chave: Database; Fish; Genetics. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-6595.pdf |
| |
|
| |
|
|
| Sevilla, Rafael G.; Diez, Amalia; Noren, Michael; Mouchel, Olivier; Jerome, Marc; Verrez-bagnis, Veronique; Van Pelt, Hilde; Favre Krey, Laurence; Krey, Grigorios; Bautista, José M.. |
| This report describes a set of 21 polymerase chain reaction primers and amplification conditions developed to barcode practically any teleost fish species according to their mitochondrial cytochrome b and nuclear rhodopsin gene sequences. The method was successfully tested in more than 200 marine fish species comprising the main Actinopterygii family groups. When used in phylogenetic analyses, its combination of two genes with different evolutionary rates serves to identify fish at the species level. We provide a flow diagram indicating our validated polymerase chain reaction amplification conditions for barcoding and species identification applications as well as population structure or haplotyping analyses, adaptable to high-throughput analyses. |
| Tipo: Text |
Palavras-chave: Teleost; Rhodopsin; PCR primers; Mitochondrial cytochrome b; Fish; DNA barcoding. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3034.pdf |
| |
|
| |
|
| |
| Registros recuperados: 32 | |
|
|
|
