Abstract
BackgroundThe aim of our research work was to quantify total flavonoid contents in the leaves of 13 plant species family Asteraceae, 8 representatives of family Lamiaceae and 9 plant species belonging to family Rosaceae, using the multiplex fluorimetric sensor. Fluorescence was measured using optical fluorescence apparatus Multiplex(R) 3 (Force-A, France) for non-destructive flavonoids estimation. The content of total flavonoids was estimated by FLAV index (expressed in relative units), that is deduced from flavonoids UV absorbing properties.ResultsAmong observed plant species, the highest amount of total flavonoids has been found in leaves of Helianthus multiflorus (1.65 RU) and Echinops ritro (1.27 RU), Rudbeckia fulgida (1.13 RU) belonging to the family Asteraceae. Lowest flavonoid content has been observed in the leaves of marigold (Calendula officinalis) (0.14 RU) also belonging to family Asteraceae. The highest content of flavonoids among experimental plants of family Rosaceae has been estimated in the leaves of Rosa canina (1.18 RU) and among plant species of family Lamiaceae in the leaves of Coleus blumei (0.90 RU).ConclusionsThis research work was done as pre-screening of flavonoids content in the leaves of plant species belonging to family Asteraceae, Lamiaceae and Rosaceae. Results indicated that statistically significant differences (P > 0.05) in flavonoids content were observed not only between families, but also among individual plant species within one family.
Highlights
The aim of our research work was to quantify total flavonoid contents in the leaves of 13 plant species family Asteraceae, 8 representatives of family Lamiaceae and 9 plant species belonging to family Rosaceae, using the multiplex fluorimetric sensor
Results of this study indicated that leaves of medical herbs belonging to families Asteraceae, Laminaceae and Rosaceae can be source of flavonoids, but more detailed biochemical analysis of flavonoids composition is needed
The highest amount of total flavonoids have been found in the leaves Helianthus multiflorus (1.65 relative units (RU)) and Echinops ritro (1.27 RU) belonging to family Asteraceae, Rosa canina of the Rosaceae family (1.18 RU) and Coleus blumei family Lamiacea (0.90 RU)
Summary
The aim of our research work was to quantify total flavonoid contents in the leaves of 13 plant species family Asteraceae, 8 representatives of family Lamiaceae and 9 plant species belonging to family Rosaceae, using the multiplex fluorimetric sensor. Many species have been recognized to have medicinal properties and beneficial impact on health, e.g. antioxidant activity, digestive stimulation action, antiinflammatory, The information on the content of some important secondary metabolites in the particular medicinal herbs of family Asteracea are well known. Varieties of Echinacea purpurea all contain similar main ingredients including caffeic acid derivatives, alkamides, flavonoids, essential oils, and polyacetylenes, and medicinal activities of which are yet to be exactly identified with corresponding diseases [6]. (Asteraceae) are known as a source of provitamin A in the leaves or oil from seeds [8], but the content of flavonoids in the leaves of different representatives is still unknown. Summarizing all, a content of flavonoids in the leaves and herbals of common medicinal plants of family Asteraceae is still not completely known and the screening information is needed
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