PROCESS FOR PREPARING BIOLOGICAL MATERIAL FOR SUBSTRATE OF SOFT AND SOLID MEDICINAL FORMS AND COSMETICS Russian patent published in 1994 - IPC

FIELD: medicine. SUBSTANCE: the process comprises using ceraine containing materials, treating them with a solution having/the pH of 10.8-13.8 and a liquid phase coefficient of 10-35 at 16-32 C, first for 4-28 hours and containing 0.1-5.0 % sodium peroxide, 1-10 % sodium chloride and 0.5-5.0% hydrogen peroxide, flooding them after the washing operation with a solution having the/pH of 1.2-2.9 and a liquid phase coefficient of 5-10 and containing 0.1-5.0% ortho-phosphoric acid and 0.1-3.0% nitric acid for 4-24 hours, then treating them again with an alkaline solution having a liquid phase coefficient of 10-25, adjusting the/pH of 7.0-9.0 after the neutralization operation, homogenizing and filtering them, adding ethanol to a concentration of 10-40% and precipitating the desired product which can be dried and used as a powder having a particle size of not greater than 3 mm as a sponge or a film. EFFECT: a wider range of agents and no allergic reactions. 4 cl, 4 tbl