Effects of various vitamins and coenzymes Q on reactions involving alpha-hydroxyl-containing radicals.
Effects of vitamins B, C, E, K and P, as well as coenzymes Q, on formation of final products of radiation-induced free-radical transformations of ethanol, ethylene glycol, alpha-methylglycoside and glucose in aqueous solutions were studied. Based on the obtained results, it can be concluded that there are substances among vitamins and coenzymes that effectively interact with alpha-hydroxyl-containing radicals. In the presence of these substances, recombination reactions of alpha-hydroxyalkyl radicals and fragmentation of alpha-hydroxy-beta-substituted organic radicals are suppressed. It has been established that the observed effects are due to the ability of the vitamins and coenzymes under study to either oxidize alpha-hydroxyl-containing radicals yielding the respective carbonyl compounds or reduce them into the initial molecules.
Shadyro
Oleg I
OI
Research Institute for Physical Chemical Problems, Belarusian State University, Minsk, Republic of Belarus. shadyro@open.by
Sosnovskaya
Anna A
AA
Edimecheva
Irina P
IP
Grintsevich
Ivan B
IB
Lagutin
Petr Yu
PY
Alekseev
Aleksei V
AV
Kazem
Kamel
K
D000438:Alcohols / Q000737:chemistry*; D001205:Ascorbic Acid / Q000737:chemistry; D000431:Ethanol / Q000737:chemistry; D019855:Ethylene Glycol / Q000737:chemistry; D005947:Glucose / Q000737:chemistry; D017665:Hydroxyl Radical / Q000737:chemistry; D008759:Methylglycosides / Q000737:chemistry; D010084:Oxidation-Reduction; D014451:Ubiquinone / Q000737:chemistry*; D014803:Vitamin B Complex / Q000737:chemistry; D014810:Vitamin E / Q000737:chemistry; D014812:Vitamin K / Q000737:chemistry; D014815:Vitamins / Q000737:chemistry*
D000438:Alcohols; D008759:Methylglycosides; D014815:Vitamins; D014803:Vitamin B Complex; D014812:Vitamin K; D014451:Ubiquinone; D014810:Vitamin E; D017665:Hydroxyl Radical; D000431:Ethanol; D019855:Ethylene Glycol; D005947:Glucose; D001205:Ascorbic Acid