Antioxidant properties of humic substances isolated from peloids.

Authors :: Avvakumova, N.
Gerchikov, A.
Khairullina, V.
Zhdanova, A.
Source :: Pharmaceutical Chemistry Journal; Jun2011, Vol. 45 Issue 3, p192-193, 2p, 1 Chart, 2 Graphs
Publication Year :: 2011
Abstract: The antioxidant properties of humic substances of low-mineralization sulfidic muds (peloids) were investigated using initiated oxidation of 1,4-dioxane as a model reaction. Four groups of substances including humic, himatomelanic, fulvic, and humus acids were studied. Kinetic characteristics of the oxidation of humic substances were determined in terms of effective inhibition rate constants fk. It is established that himatomelanic acids of peloids exhibit the maximum antioxidant activity among the studied substances. [ABSTRACT FROM AUTHOR]