Sea urchin (Paracentrotus lividus) gut biomass as a co-product with antioxidant and antibacterial potential to supplement aquafeeds

• Type: Article in International Scientific Journal
• Date: 2023

Authors

F. Xavier Malcata (Author) FEUP; F. Pagels (Author) Other; I. Garrido (Author) Other; C. Teixeira (Author) Other; Tavares, T. (Author) FEUP; B. Costas (Author) Other; L. M. P. Valente (Author) Other; A. Catarina Guedes (Author) Other

Journal

Title: Aquatic Living Resources

Vol. 36

Final page: 26

ISSN: 0990-7440

Publisher: EDP Sciences

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scopus - 0 Citations

Scientific classification

CORDIS: Technological sciences

FOS: Engineering and technology

Associated Projects

LEPABE - Financiamento Plurianual 2020-2023 da Unidade de I&D LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

ALiCE - ALiCE - Laboratório Associado em Engenharia Química

Other information

Authenticus ID: P-00Y-Z6R

DOI: 10.1051/alr/2023022

Abstract (EN): Sea urchin processing practices by the canning industry result in a large volume of waste due to a high fraction of inedible parts, in special the gut, that can still be a valuable source of bioactive compounds. Therefore, this work aimed to thoroughly characterise gut biomass from Paracentrotus lividus evaluating its bioactive potential. The gut biomass was evaluated in terms of bioactive capacity, and biochemical composition in both males and females. Although no statistical differences were found between sexes in any of these parameters, this study provided a proof of concept on the potential of sea urchin's gut, obtained as a co-product in the sea urchin industry, for feed supplementation. The gut biomass exhibited a high antioxidant capacity (IC50 approximate to 0.5-1.0 mgDW mL(-1) in four different assays) and bactericidal activity (IC50 < 1.0 mg(DW) mL(-1) against Vibrio parahaemolyticus, Edwardsiella tarda, and Tenacibaculum maritimum). The gut co-product can also be used as a source of phenolic compounds, carotenoids, and PUFAs, with contents of 4.6 +/- 0.4, 2.4 +/- 0.8, and 93.0 +/- 3.1 mg g(DW)(-1), respectively. Overall, the sea urchin's gut seems a valuable product with a remarkable potential for use in aquafeeds as a source of bioactive compounds.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10