Enriched feeds with iodine and selenium from natural and sustainable sources to modulate farmed gilthead seabream (Sparus aurata) and common carp (Cyprinus carpio) fillets elemental nutritional value

Vera Barbosa, Ana Luísa Maulvault, Patrícia Anacleto, Marta Santos, Mónica Mai, Helena Oliveira, Inês Delgado, Inês Coelho, Marisa Barata, Ravi Araújo-Luna, Laura Ribeiro, Piotr Eljasik, Małgorzata Sobczak, Jacek Sadowski, Agnieszka Tórz, Remigiusz Panicz, Jorge Dias, Pedro Pousão-Ferreira, Maria Luísa Carvalho, Marta MartinsAntónio Marques

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Developing tailor-made fortified farmed fish is a promising solution to overcome nutritional deficiencies and increase consumer confidence in these products. This study evaluated the supplementation of three fortified diets with I-rich seaweed and selenised-yeast on essential and toxic elements levels in gilthead seabream (Sparus aurata) and common carp (Cyprinus carpio). Fortified diets resulted in increased I, Se and Fe in fish muscle. Biofortified seabream and carp revealed lower Cu and Br. The reduction of fishmeal and fish oil in fortified diets resulted in lower Hg and Cd in seabream muscle. Contrarily, fortified diets increased As and Hg in carp fillets. The consumption of 150 g of fortified seabream enabled a significantly higher contribution to the daily recommended intake (DRI) of I (10%) and Se (76%) than non-fortified fish, whereas fortified carp fulfilled 23% of I DRI and 91% of Se DRI. Moreover, the exposure to Pb decreased with the consumption of biofortified seabream (23–82% BMDL01) and carp (26–92% BMDL01). These results support the strategy of developing eco-innovative biofortified farmed fish using sustainable, natural, safe and high-quality ingredients in feeds, to enable consumers to overcome nutritional deficiencies without significantly increased feed costs.

Original languageEnglish
Article number111330
JournalFood and Chemical Toxicology
Volume140
DOIs
Publication statusPublished - Jun 2020

Keywords

  • Biofortification
  • Carp
  • Essential and toxic elements
  • Seabream
  • Selenized yeast
  • Sugar kelp

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