method for the manufacture of an extract from rhizoma petasitidis with reduced pyrrolizidinalkaloidgehalt and subsequently manufactured product

摘要

procedures for the extraction of rhizoma petasitidis with gaseous carbon dioxide as solvent again in u00fcberkritischem condition (destraktion) is used, and then herstellbares extract containing pyrrolizidinalkaloiden below 5 ppm.