title: 9-Hydroxypiperitone beta-D-glucopyranoside and other polar constituents from dill (Anethum graveolens L.) herb.
abstract: A methanolic extract from dill (Anethum graveolens) herb was subjected to XAD-2 adsorption chromatography. The methanolic eluate was fractionated with the all liquid chromatographic technique of multilayer coil countercurrent chromatography (MLCCC). After acetylation of MLCCC subfractions and flash chromatography, final purification of dill herb constituents was achieved by preparative and/or analytical HPLC. Nine compounds were obtained in pure form, including the beta-D-glucopyranosides of 9-hydroxypiperitone, p-menth-2-ene-1,6-diol, and 8-hydroxygeraniol. Structure elucidation is based on electrospray ionization ion trap multiple mass spectrometry (ESI-MS/MS) as well as one- and two-dimensional nuclear magnetic resonance spectroscopy.
authors.affiliation: Institut für Lebensmittelchemie, Technische Universität Braunschweig, Schleinitzstrasse 20, DE-38106 Braunschweig, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Bonnländer
authors.forename: P
authors.initials: P
authors.lastname: Winterhalter
mesh_terms: D019661:Apiaceae / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D003378:Counterimmunoelectrophoresis; D003512:Cyclohexanones / Q000032:analysis*; D005960:Glucosides / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010936:Plant Extracts / Q000032:analysis
chemical_list: C416664:9-hydroxypiperitone glucopyranoside; D003512:Cyclohexanones; D005960:Glucosides; D010936:Plant Extracts