METHOD FOR PRODUCTION OF CO-EXTRACTS Russian patent published in 2005 - IPC

FIELD: food processing, cosmetic and pharmaceutical industries.

SUBSTANCE: claimed method includes prepared raw material two step extraction with carbon dioxide (CO₂) at elevated pressure and temperature. In the first step extraction is carried out using liquid CO₂ (in subcritical state) at 10-15 MPa and 10-30°C for 15-60 min. In the second step extraction is carried out using liquid CO₂ (in above-critical state) at 15-40 MPa and 40-50°C for 30-60 min followed by distillation of CO₂. As raw materials plant and animal originated raw materials are used, wherein starting raw materials have particle size of 0.5-0.8 mm.

EFFECT: method for isolation of extractive substances with increased yield; decreased cost of end product.

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