RADIOLYSIS STUDY OF THE OXIDATION OF A VITAMIN-K MODEL-COMPOUND IN ETHANOLIC SOLUTION

Authors
FACKIR L JORE D GARDESALBERT M FERRADINI C ACHER F AZERAD R
Citation
L. Fackir et al., RADIOLYSIS STUDY OF THE OXIDATION OF A VITAMIN-K MODEL-COMPOUND IN ETHANOLIC SOLUTION, Journal de chimie physique et de physico-chimie biologique, 90(4), 1993, pp. 815-825
Citations number
9
Categorie Soggetti
Biology,"Chemistry Physical
Journal title
Journal de chimie physique et de physico-chimie biologique → ACNP
Volume
90
Issue
4
Year of publication
1993
Pages
815 - 825
Database
ISI
SICI code
Abstract
It seems that the biological action of vitamin K (with its important r ole in carboxylating processes) may involve monoelectronic exchanges. Therefore radical mechanisms of a vitamin K model molecule KHp have be en studied in ethanolic solution by mean of steady state radiolysis me thod. The oxidation of KHp by H3C-CH(OH)OO model peroxyl radicals lead s to the formation of a '' dimeric '' form of vitamin K. The superoxid e anions seem not to be reactive towards KHp in the chosen irradiation conditions.