title: Isolation of six unconjugated pteridines from soybean (Glycin max L. Tsurunoko) seeds.
abstract: Six unconjugated pteridines stored in soybean seeds were extracted with acid and isolated with a FLorisil column and reversed-phase high-performance liquid chromatography (HPLC). They were identified by HPLC, TLC, and fluorescence spectra to be 6-carboxypterin, erythro-neopterin, threo-neopterin, isoxanthopterin, 6-hydroxymethylpterin, and pterin. They were eluted in that order on HPLC. A much higher density of the pteridines, excepting isoxanthopterin, was found in the axis than in the cotyledon after a 6-imbibition.
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D011621:Pteridines / Q000032:analysis*; D012639:Seeds / Q000032:analysis*; D013025:Glycine max; D013050:Spectrometry, Fluorescence
chemical_list: D011621:Pteridines