title: Liquid chromatographic determination of barbaloin (aloin) in foods.
abstract: A simple and rapid liquid chromatographic method is described for the determination of barbaloin (aloin, 10-D-glucopyranosyl-1,8-dihydroxy-3-(hydroxymethyl)-9(10H)-anthraceno ne) in foods. Barbaloin is extracted with water from foods containing aloe and the extract is cleaned up on a disposable cartridge by using methanol-water (55 + 45) as eluant. The eluted barbaloin is separated by liquid chromatography on a YMC A-302 column with methanol-water (50 + 50) mobile phase, and detected at 293 nm. Recoveries of barbaloin added to foods at the levels of 0.05 and 0.50 mg/g were 94.4-100%. Assay results for commercial food samples indicated that the present method is applicable to a variety of foods supplemented with aloe.
mesh_terms: D000504:Aloe / Q000032:analysis; D000873:Anthracenes / Q000032:analysis*; D002853:Chromatography, Liquid; D005504:Food Analysis; D010946:Plants, Medicinal; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000873:Anthracenes; C045601:barbaloin