Assessment of the Antioxidant Activity of Extracts of Allium schoenoprasum L. with an Experimentally Elevated Selenium Content

Abstract

The effects of using selenium dressings on A. schoenoprasum on the antioxidant activity of extracts were studied. Treatment of seeds with sodium selenate led to minor increases in polyphenol levels in extracts and the expression of the antioxidant gene katG, but had no effect on the radical-binding (RBA) or chelating (CA) activity of extracts, not increasing their antioxidant activity in a microbial test system. Selenate added artificially to extracts produced statistically significant reductions in indicators such as the concentrations of polyphenols, RBA, CA, and, to a small extent, antioxidant activity in the microbial test system, but had no effect on the ability of extracts to stimulate expression of the katG gene.