title: [Steroids and lipids from Spirodela polyrrhiza].
abstract: Two steroids and two lipids were isolated from the ethanolic extract of Spirodela polyrrhiza. Their structures were identified by spectral analysis and chemical evidence, which were identified as stigmasterol, monopalmitic glycerate, daucosterol and palmitic acid. Monopalmitic glycerate was discovered from this plant for the first time.
authors.affiliation: Department of Pharmacy, Naval General Hospital, Beijing 100037.
authors.forename: Y
authors.initials: Y
authors.lastname: Ling
authors.forename: F
authors.initials: F
authors.lastname: Wan
authors.forename: J
authors.initials: J
authors.lastname: Zheng
mesh_terms: D002855:Chromatography, Thin Layer; D004365:Drugs, Chinese Herbal / Q000032:analysis / Q000302:isolation & purification*; D005989:Glycerides / Q000032:analysis / Q000302:isolation & purification*; D019684:Magnoliopsida / Q000737:chemistry*; D019308:Palmitic Acid / Q000032:analysis / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000032:analysis / Q000302:isolation & purification; D013265:Stigmasterol / Q000032:analysis / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D005989:Glycerides; D012855:Sitosterols; D019308:Palmitic Acid; D013265:Stigmasterol; C011015:lyoniside