METHOD FOR PRODUCTION OF CO AJAN SPRUCE PISEA AJANENSIS EXTRACT Russian patent published in 2023 - IPC A23L33/105 C11B9/00 

FIELD: extraction.

SUBSTANCE: invention relates to a technology of extraction of natural raw materials, which can be used in food, perfumery and cosmetics, and pharmaceutical industry. A method for the production of CO₂ Ajan spruce Pisea ajanensis extract is proposed, characterized in that plant raw materials in the form of needles of Ajan spruce Pisea ajanensis, ground to a particle size of 5-6 mm, are subjected to extraction with a solvent, with a flow rate of 5-20 kg/kg of plant raw materials, as which supercritical fluid CO₂ is used with the mass fraction of ethanol of 5%, at a temperature of 31-55°C and pressure of 50-200 bar, for 60 min.

EFFECT: invention allows for provision of high efficiency of extraction of Ajan spruce Pisea ajanensis due to an increase in the mass fraction of a cosolvent, as which ethanol is used; increase in extraction of biologically active substances (BAS) with the yield of up to 5% of the weight of plant raw materials, in particular dihydroquercetin; reduction in temperature and pressure of extraction; as well as preservation of a composition of biologically active substances in the resulting product.

1 cl, 1 tbl, 1 dwg