METHOD FOR PRODUCING A CARNOSIC ACID-RICH PLANT EXTRACT

A carnosic acid-rich plant extract can be produced by extracting a dried and comminuted plant material containing carnosic acid with supercritical CO2 at a pressure of at least 200 bar and at a temperature of at most 100° C. In a first step, supercritical CO2 in a quantity of 10 to 50 kg of CO2 per...

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Hauptverfasser:	HAUSNER, HELMUT, KAHLEYSS, RALF, MICHLBAUER, FRANZ, WIESMUELLER, JOHANN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES SEPARATION TRANSPORTING
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Zusammenfassung:	A carnosic acid-rich plant extract can be produced by extracting a dried and comminuted plant material containing carnosic acid with supercritical CO2 at a pressure of at least 200 bar and at a temperature of at most 100° C. In a first step, supercritical CO2 in a quantity of 10 to 50 kg of CO2 per kg of plant material is passed through the plant material to obtain a first CO2 extract. In a second step, additional supercritical CO2 is passed through the plant material to obtain a second CO2 extract, and a carnosic acid-rich plant extract is separated from the second CO2 extract by lowering the pressure.