FIELD: production of chitin. SUBSTANCE: method involves subjecting ground wet raw material to extraction process by means of acetone at temperature of 15-25 C, with raw material : acetone ratio being within the range of 1: 1 - 1:10; stirring mixture so as to provide for complete soaking of raw material; settling; separating extract with biologically active substance complex from dense residue; subjecting dense residue to repeated extraction process; drying and directing to deproteinizing unit and to demineralizing unit for obtaining chitin and protein; uniting extracts; performing vacuum evaporation of acetone at temperature not exceeding 60 C; stirring obtained mixture of lipins and lipin-soluble substances with organic solvent with following separation into phases; separating solvent with lipins, filtering and drying by means of dehydrating agent; performing vacuum evaporation of filtrate at temperature not exceeding 60 C. Method may be used for producing carotinoid concentrates as well as concentrates of lipins such as phospholipins, triglycerides, diglycerides, sterols etc containing 50-80% of lecithin (phosphatidilcholine), up to 55% of polyunsaturated fatty acids. Method provides maximal extraction of organic components and retention of their native properties and, as a consequence, allows white chitin to be obtained without the necessity of employing additional treatment procedures. EFFECT: increased efficiency and improved quality of extracted components. 4 cl, 2 tbl, 2 ex
