ANTIRADICAL ACTIVITY OF ETHANOLIC EXTRACTS OF COMMON TANSY (TANACETUM VULGARE L.) AND FIELD HORSETAIL (EQUISETUM ARVENSE L.)

The present study investigated the antiradical activity of ethanolic extracts of mixtures of common tansy (Tanacetum vulgare L.) and field horsetail (Equisetum arvense L.) at different component ratios (1:1, 1:3, 3:1) using the optimized DPPH assay. The kinetics of radical inhibition were evaluated and IC₅₀ values were calculated. All extracts demonstrated dose- and time-dependent antiradical activity. The highest activity was observed for the 3:1 mixture (AOF% = 21.33 ± 0.88%), which also showed the lowest IC₅₀ value (231.52 µL). The results indicate a synergistic enhancement of antioxidant activity in compositions with a predominance of Tanacetum vulgare and suggest its potential as a promising natural source of antioxidants.

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