ARABINOGALACTAN POLYSACCHARIDE PRODUCTION METHOD Russian patent published in 2017 - IPC C08B37/00 

FIELD: food industry.

SUBSTANCE: invention refers to food and medical industry. The proposed method implies that arabinogalactan is extracted during 30-40 minutes in an ultrasonic device with frequency 27-42 kHz at a temperature of 20-30°C with water duty of 1.3-7 to the dry weight of the raw material, then the extract is filtered, dispersed by ultrasonic spraying and concentrated in a receving tank up to dry matter concentration within 20-40%. The concentrate is precipitated by the addition of organic water-mixed solvent at the ratio 1:4. The precipitated arabinogalactan is washed in the same solvent, dried and ground. It is preferable to extract arabinogalactan without pre-extraction of dihydroquercetin. The arabinogalactan extract is condensed in serially connected vessels to obtain arabinogalactan with specified molecular weight. After arabinogalactan precipitation and washing, the extraction agent is filtered, distilled and reintroduced to the arabinogalactan manufacturing process.

EFFECT: invention allows for the production of arabinogalactan of high purity with specified molecular weight and additional presence of dihydroquercetin, reduction of power inputs and of extraction process duration.

4 cl, 1 dwg, 2 tbl, 3 ex