Phytochemical investigation of Crataegi folium cum flos (hawthorn leaves and flowers) and Hyperici herba (st johns wort aerial parts) hydroalcoholic extracts
| Autor: | Ruxandra Cretu, Roxana Mihailescu, Gabriela Mitroi, Elena Iacob, Ramona Verdes, Carmen Tebrencu |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Analele Ştiinţifice Ale Universităţii Alexandru Ioan Cuza din Iași,Sectiunea II A : Genetica si Biologie Moleculara, Vol 12, Iss 4, Pp 133-138 (2011) |
| ISSN: | 2248-3276 1582-3571 |
| Popis: | Hawthorn (Crataegus monogyna) hydroalcoholic extract was prepared by extraction of powdered dried leaves and flowers with ethanol 70% v/v (1:10), by reflux for two hours. St Johns Wort (Hypericum perforatum) hydroalcoholic extract was prepared by extraction of powdered dried flowering aerial parts with ethanol 70% v/v (1:10), by reflux for two hours. Both extracts were qualitative and quantitative analyzed. The qualitative analysis consisted in phytochemical screening and spectroanalytical profile by HPTLC and UV/VIS absorption spectroscopy. Quantitative analyses consisted in determination of total flavonoid content (as rutin) by following colorimetric aluminum chloride method, and total polyphenol content (as gallic acid) by Folin- Ciocalteu method. Results were evaluated statistically and presented as mean of three determinations ± SD (standard deviation). These analyses revealed their complex composition and either some similarities and differences between these two extracts. |
| Databáze: | OpenAIRE |
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