METHOD OF PRODUCING XANTHAN Russian patent published in 2025 - IPC C12N1/20 C12P19/06 C12R1/64 

FIELD: biotechnology.

SUBSTANCE: disclosed is a method of producing xanthan, involving the cultivation of bacteria Xanthomonas campestris VKPM-6720 on a nutrient medium containing a carbon source, which is a pine wood hydrolyzate obtained by hydrolysis of wood with an inorganic acid, as a source of nitrogen – bactopeptone, as a source of vitamins and minerals – yeast extract; wherein the wood hydrolyzate is purified from phenol compounds and ions before preparing the nutrient medium and neutralized to pH 6.0-7.5 by treatment in two steps with a weakly basic anion-exchange resin Resinex TPX-4503 at 70-80 °C, then singly active clarifying alkaline coal “ОУ-А”.

EFFECT: invention provides high output of the end product.

4 cl, 2 tbl, 5 ex