Bioaccessibility of lipophilic and hydrophilic marine biotoxins in seafood: An in vitro digestion approach
Visualitza/Obre
Autor/a
Alves, Ricardo N.
Rambla-Alegre, Maria
Braga, Ana Catarina
Maulvault, Ana L.
Barbosa, Vera
Reverté, Laia
Flores, Cintia
Caixach, Josep
Kilcoyne, Jane
Costa, Pedro Reis
Marques, António
Data de publicació
2019-04-28ISSN
0278-6915
Resum
This study aimed to assess the bioaccessibility of different marine biotoxins in naturally contaminated shellfish and fish gonads using an in vitro digestion methodology. In general, hydrophilic toxins (domoic acid, paralytic shellfish poisoning toxins and tetrodotoxins) showed higher bioaccessibility than lipophilic ones (okadaic acid and azaspiracids). The bioaccessibility of toxins from the okadaic acid group ranged from 69% (raw European razor clams) to 74% (raw donax clams). Regarding azaspiracids, 47% of the initial content was bioaccessible in steamed blue mussel. As for hydrophilic toxins, 100% of the initial content was bioaccessible after digestion in raw shellfish and puffer fish gonads. The total tetrodotoxin bioaccessibility in puffer fish gonads decreased significantly after steaming. The profile of tetrodotoxins changed during the digestion process: TTX and 11-norTTX-6S-ol analogues decreased significantly after digestion, but the 5,6,11-trideoxy TTX analogue increased in both raw and steamed puffer fish gonads. These preliminary findings confirm the need to consider bioaccessibility data in future seafood risk assessment, as such information enables a more accurate and realistic estimation of potential seafood hazards, particularly in what concerns lipophilic toxins, therefore, constituting a crucial tool in the refinement of regulatory limits for the presence of biotoxins in seafood.
Tipus de document
Article
Versió del document
Versió acceptada
Llengua
English
Matèries (CDU)
63 - Agricultura. Silvicultura. Zootècnia. Caça. Pesca
Pàgines
45
Publicat per
Elsevier
Publicat a
Food and Chemical Toxicology
Citació
Alves, Ricardo N., Maria Rambla-Alegre, Ana Catarina Braga, Ana L. Maulvault, Vera Barbosa, Mònica Campàs, and Laia Reverté et al. 2019. "Bioaccessibility Of Lipophilic And Hydrophilic Marine Biotoxins In Seafood: An In Vitro Digestion Approach". Food And Chemical Toxicology 129: 153-161. Elsevier BV. doi:10.1016/j.fct.2019.04.041.
Número de l'acord de la subvenció
EC/FP7/311820/EU/Priority environmental contaminants in seafood: safety assessment, impact and public perception/ECSAFESEAFOOD
Programa
Aigües Marines i Continentals
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