antiradical activity

The antiradical activity of extractive gallotannins isolated from the leaves of the common smoke tree (Cotinus coggygria Scop.), as well as their synergistic eff ects in binary mixtures with low-molecular-weight phenolic acids and their methoxy derivatives have been investigated. The antiradical activity of the compounds has been evaluated by the initial rate of reaction with 2,2’-diphenyl-1-picrylhydrazyl in dimethyl sulfoxide at 298±2 K using photocolorimetry.

Antioxidant status maintenance plays a significant role for mushroom cultures in respect to oxidative stress resistance, cytodifferentiation and transition to the generative stage. Strong antioxidants are the selenium compounds. One of the antioxidant action indices is the antiradical activity determined by means of the spectrophotometric method using the reactions with the free radical 1,1-diphenyl-2-picrylhydrazyl (2,2-diphenyl-1-picrylhydrazyl, N,N-diphenyl-N’-picrylhydrazyl, DPPH) (C6H5) 2N– N•–C6H2(NO2) 3-2,4,6.