THE DEVELOPMENT OF APPROACHES FOR INTEGRATED PROCESSING AND UTILIZATION OF ALDER BARK
With the aim of developing new approaches to the utilization of bark and the provision of more broad-spectrum of nutrients suggested and tested scheme of sequential extraction of the bark of black alder (Alnus glutinosa) industrial debarking. The study from the bark of the alder isolated and characterized by spectral and some extractive substances - triterpenoids (betulin, etc.), diarylheptanoid and pectin, anthocyanidin dyes. It is shown that the composition of water-ethanol extracts of alder bark includes phenolic compounds (flavonoids), tannins, diarylheptanoids, saponins. These substances have broad and proven biological activity and pharmacological value. Experimental data of the study of adsorption activity indicate that the bark subjected to successive extraction treatment to obtain biologically active substances is an effective sorbent that does not require additional activation. The results allow us to begin the development, creation and implementation of low-and waste-free technologies that allow the maximum and most fully extract valuable components of alder bark, turning them into useful products, also to eliminate or reduce the damage caused to the environment as a result of emissions of industrial waste into the air, water and soil.