title: Supercritical carbon dioxide extraction of podophyllotoxin from Dysosma pleiantha roots.
abstract: Supercritical fluid extraction (SFE) was utilized to extract podophyllotoxin from the roots of Dysosma pleiantha. The extraction was carried out in the temperature range of 40-80 degrees C and the pressure range of 13.6-34.0 MPa with supercritical carbon dioxide. However, podophyllotoxin was not sufficiently extracted by pure supercritical carbon dioxide. Methanol was used as modifier to enhance the extraction yield of podophyllotoxin. As a result, SFE produced a higher recovery of podophyllotoxin than conventional 95% ethanol extraction.
authors.forename: Y H
authors.initials: YH
authors.lastname: Choi
authors.forename: J Y
authors.initials: JY
authors.lastname: Kim
authors.forename: J H
authors.initials: JH
authors.lastname: Ryu
authors.forename: K P
authors.initials: KP
authors.lastname: Yoo
authors.forename: Y S
authors.initials: YS
authors.lastname: Chang
authors.forename: J
authors.initials: J
authors.lastname: Kim