Ciguatoxin Detection in Flesh and Liver of Relevant Fish Species from the Canary Islands
Ver/Abrir
Autor/a
Ramos-Sosa, María José
García-Álvarez, Natalia
Sanchez-Henao, Andres
Silva Sergent, Freddy
Padilla, Daniel
Estévez, Pablo
Caballero, María José
Martín-Barrasa, José Luís
Gago-Martínez, Ana
Real, Fernando
Fecha de publicación
2022-01-09ISSN
2072-6651
Resumen
The Canary Islands are a ciguatoxin (CTX) hotspot with an established official monitoring for the detection of CTX in fish flesh from the authorised points of first sale. Fish caught by recreational fishermen are not officially tested and the consumption of toxic viscera or flesh could lead to ciguatera poisoning (CP). The objectives of this study were to determine the presence of CTX-like toxicity in relevant species from this archipelago, compare CTX levels in liver and flesh and examine possible factors involved in their toxicity. Sixty amberjack (Seriola spp.), 27 dusky grouper (Epinephelus marginatus), 11 black moray eels (Muraena helena) and 11 common two-banded seabream (Diplodus vulgaris) were analysed by cell-based assay (CBA) and Caribbean ciguatoxin-1 (C-CTX1) was detected by liquid chromatography mass spectrometry (LC-MS/MS) in all these species. Most of the liver displayed higher CTX levels than flesh and even individuals without detectable CTX in flesh exhibited hepatic toxicity. Black moray eels stand out for the large difference between CTX concentration in both tissues. None of the specimens with non-toxic liver showed toxicity in flesh. This is the first evidence of the presence of C-CTX1 in the common two-banded seabream and the first report of toxicity comparison between liver and muscle from relevant fish species captured in the Canary Islands.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
574 - Ecología general y biodiversidad
Páginas
17
Publicado por
MDPI
Publicado en
Toxins
Citación
Ramos-Sosa, María José, Natalia García-Álvarez, Andres Sanchez-Henao, Freddy Silva Sergent, Daniel Padilla, Pablo Estévez, and María José Caballero et al. 2022. "Ciguatoxin Detection In Flesh And Liver Of Relevant Fish Species From The Canary Islands". Toxins 14 (1): 46. doi:10.3390/toxins14010046.
Número del acuerdo de la subvención
EFSA/ /GP-EFSA-AFSCO-2015-03/EU/Risk Characterization of Ciguatera Food Poisoning in Europe/EUROCIGUA
MICIU/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I y Programa Estatal de I+D+I orientada a los retos de la sociedad/PID2019-108781RR-C21/ES/Food risks associated with ciguatoxins: monitoring and tracking the toxins and toxin-producing organisms in marine ecosystems/CIGUARISK
MICIU/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I y Programa Estatal de I+D+I orientada a los retos de la sociedad/PID2019-108781RR-C22/ES/Food risks associated with ciguatoxins: monitoring and tracking the toxins and toxin-producing organisms in marine ecosystems/CIGUARISK
Program
Aigües Marines i Continentals
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