METHOD OF SIMULTANEOUS PREPARING OF TETRA-, TRI-, DI- AND MONOGALACTURONIC ACIDS Russian patent published in 1995 - IPC

FIELD: preparative biotechnology. SUBSTANCE: aqueous solution of beet pectin is boiled for 10 min, 15% lithium sulfate solution is added, filtered, and filtrate is passed through cation-exchange resin in H⁺-form. Barium carbonate is added to filtrate, formed salts were dissolved in water, and salts of tetragalacturonic, trigalacturonic, digalacturonic and monogalacturonic acids were precipitated with ethanol taken at concentration 30, 40, 50 and 90%, respectively. Salts were dissolved in water, solution is passed through cation-exchange resin in H⁺-form. The end products were isolated and dried. Products were used in medicine. EFFECT: improved method of products preparing.