Phytochemical screening, total hydroxycinnamic acids, total phenolic and antioxidant activity of Lavandula angustifolia Mill

The aim of this study was the screening of phytochemicals and determination of total hydroxicinamic acids, total polyphenols and antioxidant activity of hydroalcoholic extract of Lavandula angustifolia Mill. cultivated in Craiova - Romania. Phytochemical screening showed that all of samples are positively. Quantitative determination of hydroxycinnamic acids was calculated as chlorogenic acid equivalent in % of dried plant raw material. The total polyphenol content was measured using the Folin Ciocalteu reagent colorimetric method. Antioxidant activity was determined using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenger methods. It has established that in sample of Lavandula angustifolia the total content of hydroxycinnamic acid derivates is 2.65%, total polyphenols 1.4 mg GAE g-1 DW. The hydroalcoholic extract displayed DPPH free radical scavenging activity with 85.7%.