Comparative Characteristics of the Chemical Composition of Some Brown Algae from the White and Yellow Seas

• Published in: Russian journal of bioorganic chemistry Vol. 47; no. 7; pp. 1395 - 1403
• Main Authors: Bogolitsyn, K. G., Parshina, A. E., Druzhinina, A. S., Shulgina, E. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2021; Springer Nature B.V
• Subjects: Algae; Biochemistry; Biomedical and Life Sciences; Biomedicine; Bioorganic Chemistry; Chemical composition; Chemical compounds; Life Sciences; Organic Chemistry; Plant Biopolymers; Polysaccharides; Proteins; Supercritical fluids; brown algae; Arctic; extraction; cellulose; chemical composition; protein
• ISSN: 1068-1620; 1608-330X
• DOI: 10.1134/S1068162021070025

Brown algae represent a valuable source of various biologically active compounds. Their accumulation is influenced by many environmental factors. The purpose of this study was a comparison of the total chemical composition of brown algae from the White and Yellow Seas to substantiate the possibility of their use for production of new pharmaceutical substances. Using a scheme, which involves consecutive supercritical fluid, acid, alkaline and water extractions, various components of brown algae have been isolated including a protein-polysaccharide complex, which, in the case of Laminaria digitata and L. saccharina , consisted of cellulose and proteins for more than 80%. FTIR spectroscopy has confirmed the qualitative composition of the complex and indicated its purity. Significant differences in the elemental and component composition affected by growing conditions of macrophytes have been revealed. Chemical compounds obtained from brown algae biomass, especially the protein–polysaccharide complex, have a high potential as a basis for new pharmacological preparations for health protection purposes. Based on the earlier obtained data, one can suppose this complex has both enterosorption and immunomodulatory activity.