Data/hora: 01/06/2024 09:41:08

Provedor de dados: | 5
País: | France
Título: | First report on amnesic and diarrhetic toxins detection in French scallops during 2004-05 monitoring surveys
Autores: | Amzil, Zouher; Royer, Florence; Sibat, Manoella; Fiant, Liliane; Gelin, Muriel; Le Gal, Dominique; Francoise, Sylvaine.
Data: | 2009
Ano: | 2009
Palavras-chave: | Scallops; Domoic acid; Okadaic acid and derivatives; Dinophysis.
Resumo: | In the context of the French phytoplankton and phycotoxins monitoring network (REPHY), shellfish scallops were harvested systematically during the authorised fishing season for the purpose of investigating paralytic toxins (PSP-mouse test), amnesic toxins (ASPchemical analysis), and lipophilic toxins (DSP-mouse test). For all shellfish samples that tested positive in the DSP mouse bioassay used for lipophilic toxins detection, liquid chromatography coupled with mass spectrometry (LC-MS/MS) was used to search for the following lipophilic toxins: okadaic acid, dinophysistoxins, pectenotoxins, azaspiracids, yessotoxins, spirolides, and gymnodimine. In order to investigate the presence of okadaic acid esters (DTX3), alkaline hydrolysis was performed on all samples, with LC-MS/MS analyses being applied to the samples before and after hydrolysis. During 2004–05, the results revealed two consecutive contamination periods of French scallops (the Bay of Seine, Normandy): firstly by domoic acid for the duration of the 8 months from November 2004 until to June 2005, and secondly by okadaic acid and DTX3 associated with Dinophysis up until the month of December 2005. This paper reports on the first occurrence of domoic acid, okadaic acid, and DTX3 in French scallops. Paralytic toxins, however, were not detected.
Tipo: | Text
Idioma: | Inglês
Identificador: | http://archimer.ifremer.fr/doc/00015/12577/9447.pdf
Editor: | Sixth International Conference on Molluscan Shellfish Safety. Blenheim, New Zealand, 18-23 March
Relação: | http://archimer.ifremer.fr/doc/00015/12577/
Formato: | application/pdf
Fonte: | 2009 Ifremer