Seaweeds rehydration and boiling: Impact on iodine, sodium, potassium, selenium, and total arsenic contents and health benefits for consumption

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Correia, H (Author) Other; Soares, C (Author) Other; Morais, S (Author) Other; Pinto, E (Author) Other; Marques, A (Author) Other; Nunes, ML (Author) Other; Agostinho Almeida (Author) FFUP; Delerue Matos, C (Author) Other

Journal

Title: Food and Chemical Toxicology

Vol. 155

ISSN: 0278-6915

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 5 Citations

Other information

Authenticus ID: P-00V-3TN

DOI: 10.1016/j.fct.2021.112385

Abstract (EN): Considering the importance of seaweeds for the development of sustainable and innovative food products, this study aimed to characterize the impact of hydrothermal processing on iodine, sodium, potassium, selenium, and arsenic concentrations of four seaweed species (S. latissima, L. digitata, U. pinnatifida, and C. crispus) and on the associated health risks-benefits for consumers. These elements revealed a common pattern for leachable fractions of iodine, total arsenic, and selenium: L. digitata >= S. latissima > C. crispus > U. pinnatifida after rehydration and boiling during different periods. The behavior for sodium was: S. latissima > L. digitata > C. crispus > U. pinnatifida, and for potassium: U. pinnatifida > L. digitata > S. latissima > C. crispus. Generally, the species that attained more significant losses were S. latissima and L. digitata. A health-relevant sodium/potassium ratio below 0.7 was found for all species except for U. pinnatifida. In some species, the risk-benefit analysis revealed that high iodine and arsenic levels might promote risks for consumption, even after 20 min boiling, but 5 g of processed U. pinnatifida could contribute to adequate iodine, sodium, potassium, and selenium intakes for all population groups. Standardized processing treatments of seaweeds can open new opportunities for the sector.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11