title: Qualitative and quantitative chromatographic investigation of hydroquinone derivatives in Pyrus communis L. flowers.
abstract: The qualitative analysis and quantitative determination of hydroquinone derivatives (arbutin, pyroside) in the flowers of naturally growing pear tree and of its four cultivated varieties (Pomarańczówka, Lukasówka, Klapsa, Salisbury) were carried out. The comparative qualitative analysis of hydroquinone derivatives was investigated chromatographically (TLC). Arbutin and pyroside were found in all the studied plant materials and free hydroquinone was found in buds of naturally growing pear. The content of arbutin and pyroside was determined by the HPLC method.
authors.affiliation: Department of Pharmacognosy, Medical University of Lódź, 1 Muszyńskiego Str., 90-151 Lódź, Poland.
authors.forename: Izabela
authors.initials: I
authors.lastname: Rychlińska
authors.forename: Jan
authors.initials: J
authors.lastname: Gudej
mesh_terms: D001104:Arbutin / Q000737:chemistry; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D035264:Flowers / Q000737:chemistry; D006873:Hydroquinones / Q000737:chemistry* / Q000302:isolation & purification; D031989:Pyrus / Q000737:chemistry*; D012015:Reference Standards; D012997:Solvents; D013056:Spectrophotometry, Ultraviolet
chemical_list: D006873:Hydroquinones; D012997:Solvents; D001104:Arbutin