METHOD FOR PRODUCTION OF ANTHOCYAN COLOURING AGENT FROM REFUSES OF BERRIES OF DARK VARIETIES

摘要

FIELD: food industry.SUBSTANCE: invention may be used in food industry for natural anthocyan colouring agents production. The method for production of an anthocyan colouring agent from refuses of berries of dark varieties involves mixing of dried and milled raw material with an extragent - a mixture of water and glycerine at a weight ratio equal to 1÷3; extraction is performed at a temperature of 90-98°C during 0.5-1 hour (under stirring conditions). The produced colouring agent is separated from the solid fraction by way of filtration; the residue is expressed.EFFECT: invention allows to enhance red pigments extraction efficiency and resistance to heating, simplify and intensify the anthocyan colouring agents production method.6 dwg, 1 tbl, 6 ex