METHOD FOR ENRICHMENT OF RAW MATERIAL FOR PRODUCING OF EXTRACTS FROM DOG ROSE FRUIT Russian patent published in 2007 - IPC A23L2/02 

FIELD: food-processing industry.

SUBSTANCE: method involves grinding dried dog rose fruit; moving bulk mixture into settling gas conduit through pneumatic transportation means, followed by separating and briquetting of useful fraction, that is, ground pericarp. Method is effectuated using settling gas conduit designed for purification of gases from mechanical impurities by inertial force. Air flow is vortexed in settling gas conduit with the use of slide gates adapted for providing of particle weight classification control.

EFFECT: reduced losses of raw material, increased efficiency of classification process, and provision for realizing delivery of semi-finished product to remote consumer.