Botanical characterization, chemical composition and antioxidant activity of romanian lavander (Lavandula angustifolia Mill.) flowers
February 18, 2020
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| Article Title: | Botanical characterization, chemical composition and antioxidant activity of romanian lavander (Lavandula angustifolia Mill.) flowers |
| Authors: | Costea T., Străinu A. M., Gîrd C. E. |
| Affiliation: | Pharmacognosy, Phytochemistry, Phytotherapy Department, Faculty of Pharmacy, “Carol Davila University” of Medicine and Pharmacy, Bucharest, Romania |
| Abstract: | The aim of our paper was the botanical characterization, evaluation of chemical composition and antioxidant activity of Romanian lavender (Lavandula angustifolia Mill.) flowers, harvested at different time of flowering (June and September). The herbal product’s identity was determined based on macroscopic and microscopic exams. For phytochemical screening, we have used both qualitative (specific chemical reactions and thin layer chromatography – TLC) and quantitative assays. The antioxidant capacity was evaluated based on the scavenger activity towards DPPH, ABTS•+ free radicals and ferric reducing power. Analyzed samples are a source of flavones, phenolcarboxylic acids, essential oil and anthocyanidins. TLC analysis revealed the presence of linalool in both lavender samples. The highest content of polyphenols, tannins and anthocyanidins was determined for flowers harvested in June, while the essential oil prevailed in September. We have found a good correlation between the antioxidant activity and total phenolic content. |
| Keywords: | phenolic compounds, antioxidant activity, linalool, lavender flowers, essential oil |
| *Correspondence: | Teodora Costea, “Carol Davila” University of Medicine and Pharmacy, Faculty of Pharmacy, Pharmacognosy, Phytochemistry, Phytotherapy Department, no.6, Traian Vuia Street, Bucharest, Romania, telephone: 0040722554665, email: teodora.costea@umfcd.ro |
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