Chemical characterization of the introduced red alga Polyopes lancifolius (Halymeniales, Rhodophyta) from the Gulf of Morbihan, France. Issue 6 (2nd November 2022)

• Record Type: Journal Article
• Authors: Hardouin, Kevin; Bouyer, Romain; Pliego-Cortés, Hugo; Le Men, Timothée; Cérantola, Stéphane; Marty, Christel; Douzenel, Philippe; Bedoux, Gilles; Bourgougnon, Nathalie
• Is Part Of: Phycologia. Volume 61:Issue 6(2022)
• Page Start: 616
• Page End: 627
• Publication Date: 2022-11-02
• Subjects: Amino acids -- Carrageenan -- Chemical composition -- Mycosporine-like amino acids; Algology -- Periodicals; Algae -- Periodicals; Algae; Natuurkunde; Algae; Periodicals; Electronic journals; 579.805
• DOI: 10.1080/00318884.2022.2117942
• Languages: English
• ISSNs: 0031-8884

Abstract

ABSTRACT: Polyopes lancifolius is an introduced species of Halymeniales (Rhodophyta) from Asia, discovered on the North Atlantic coast in 2008. In this study, a first biochemical description of the species from the Gulf of Morbihan (France) is presented. The overall biochemical analysis of the algal raw material showed levels of neutral sugars (25.14% dw), proteins (15.00% dw), lipids (2.30% dw) and ash (12.64% dw) similar to those observed in species of the genera Grateloupia and Halymenia (Halymeniales). The major mycosporin-like amino acids were the shinorine, palythine and porphyra-334. Matrix polysaccharides represented 62% of the alga. The extract contained a high level of 3, 6-anhydrogalactose (44.26%) and a low level of sulphates (10.2%). Uronic acids were also identified in the polysaccharide extract (13.03% dw). Galactose (64.54%) and glucose (27.92%) were the two main monosaccharides. Physico-chemical analyses showed that P. lancifolius contained kappa-carrageenan. The chemical and spectrometry results suggested the presence of agarocolloids and glucans with a high diversity of compounds in the extract. The characterization of the polysaccharide families requires future study.