title: [Isolation and purification of 10-hydroxycamptothecin and vincoside-lactam from Camptotheca acuminata seed by polyamide].
abstract: To investigate the technological parameters of the isolation and purification of 10-hydroxycamptothecin and vincoside-lactam from Camptotheca acuminata seed by polyamide. The static arid dynamic adsorption characteristics of 10-hydroxycamptothecin and vincoside-lactam on polyamide were studied, and the contents were determined by HPLC. The optimum parameters for adsorption were as follows: the contents of 10-hydroxycamptothecin and vincoside-lactam in the extracts were 0.189 g x L(-1) and 0.334 g x L(-1), respectively, pH 6, flow rate was 1.0 mL x min(-1), processing volume was 3 BV; for desorption: ethanol-water (60:40), flow rate was 1.0 mL x min(-1), 5 BV as an eluent. After treated with polyamide, the contents of 10-hydroxycamptothecin and vincoside-lactam were 17.52% and 32.87%, respectively, the recovery yields were 66.05% and 75.86%, respectively. Results showed that polyamide revealed a good ability to separate 10-hydroxycamptothecin and vincoside-lactam. Therefore, we concluded that results in this study may provide scientific references for the large-scale production of 10-hydroxycamptothecin and vincoside-lactam extracted from C. acuminata seed.
authors.affiliation: Engineering Research Center of Plant Medical, Northeast Forestry University, Harbin 150040, China.
authors.forename: Wei-Guo
authors.initials: WG
authors.lastname: Shi
authors.forename: Yuan-Gang
authors.initials: YG
authors.lastname: Zu
authors.forename: Lei
authors.initials: L
authors.lastname: Yang
authors.forename: Chun-Jian
authors.initials: CJ
authors.lastname: Zhao
authors.forename: Jia-Hui
authors.initials: JH
authors.lastname: Li
mesh_terms: D029769:Camptotheca / Q000737:chemistry*; D002166:Camptothecin / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D009757:Nylons / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D009757:Nylons; C028098:10-hydroxycamptothecin; D002166:Camptothecin