JOHANN WIESMUELLER,FRANZ MILCHBAUER,RALF KAHLEYSS,HELMUT HAUSNER
申请号：
BR112012009771
公开号：
BR112012009771A2
申请日:
2010.10.12
申请国别(地区):
BR
年份:
2015
代理人:
摘要：
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.
