title: [Bioavailability of pyridine compounds in seeds of Ricinus communis L. at various stages of germination].
abstract: The intermediates of metabolic cycle of pyridine compounds have been isolated in Ricinus communis seeds, at various stages of development, by reversed-phase HPLC with a linear gradient elution. NAm, NAc, QAc, NMN, des-NMN, des-NAD+, NAD+ and NADP+ were separated in less than 32 min. Pyridine compounds show typical behaviours during the considered periods (0-6th day). On the basis of the obtained results the metabolic availabilities of these vegetable tissues are discussed.
mesh_terms: D001682:Biological Availability; D002851:Chromatography, High Pressure Liquid; D009243:NAD / Q000378:metabolism; D009249:NADP / Q000378:metabolism; D009537:Nicotinamide Mononucleotide / Q000378:metabolism; D010947:Plants, Toxic; D011725:Pyridines / Q000378:metabolism*; D012278:Ricinus / Q000378:metabolism*; D012639:Seeds / Q000254:growth & development / Q000378:metabolism*
chemical_list: D011725:Pyridines; D009243:NAD; D009537:Nicotinamide Mononucleotide; D009249:NADP
vernacular_title: Biodisponibilita' dei composti piridinici nei semi di Ricinus communis L. a vari stadi di germinazione.