Determination of polyphenol and flavonoid content and antioxidant activity of ethanolic, chloroform and ethyl acetate extract of the plant species Thymus serpyllum L

This research aimed to examine the phytochemical composition, content of polyphenols and flavonoids, antioxidant capacity ethanolic, ethyl acetate, chloroform extract plant species Thymus serpyllum L. The extracts were tested for presence alkaloids, tannins, saponins, phenolic compounds, steroids, terpenoids, cardiotonic glycosides, coumarins. total was determ ined spectrophotometrically with Folin-Ciocalteu reagent, according Singleton's method, while flavonoids determined using method aluminum chloride. highest contents in ethanolic extracts, where measured values ranged from 111.00 ± 0.26 288.00 0.23 mg GAE/g dry polyphenols, 65.80 0.19 198.22 0.34 RE/g flavonoids. activity by DPPH (2,2-diphenyl-1-picrylhydrazyl) assay. show a good effect on radical inhibition, IC50 ranging 35.15 0.33 398.27 0.24 mg/ml, greatest ability neutralize radical. Qualitative analysis showed wide spectrum phytochemicals, ethanol, as most polar solvent, almost all phytochemicals.