COMPARATIVE CHARACTERISTICS OF THE CHEMICAL COMPOSITION OF SOME REPRESENTATIVES OF BROWN ALGAE OF THE WHITE AND YELLOW SEAS

Abstract

Brown algae are a valuable source of a variety of biologically active compounds. Their accumulation is influenced by many environmental factors in which macrophytes grow. The purpose of this study is to carry out comparative studies of the general chemical composition of brown algae in the White and Yellow Seas to substantiate the possibility of their use as raw materials for obtaining new pharmaceutical substances. Using the proposed scheme, which involves sequential supercritical fluid, acid, alkaline and water extraction, it was possible to isolate various components of brown algae, including a protein-polysaccharide complex, which in the case of the species Laminaria digitata and Laminaria saccharina is more than 80% cellulose and squirrel. The data obtained by FTIR spectroscopy confirm the qualitative composition of the complexes and also indicate its purity. Significant differences were revealed in the chemical elemental and component composition, which are affected by the growing conditions of macrophytes. The resulting chemical compounds from brown algae biomass, in particular the protein-polysaccharide complex, have a high potential for obtaining new pharmacological preparations based on them for health protection purposes. Based on the previously obtained data, it can be assumed that this complex has a double activity – enterosorption and immunomodulatory.