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Constituents from the leaves of Crataegus davisii Browicz
From the leaves of Crataegus davisii five flavonoids ( hyperoside, vitexin 2’’- rhamnoside, vitexin 4’-rhamnoside, rutin, quercetin ) together with chlorogenic acid and crataequinone B were isolated.…
The Brassicaceae (Cruciferae) of Turkey, Updated
The nomenclature of 51 taxa in 27 genera of Turkish Brassicaceae has been updated to bring the account of the family in line with the current classification and nomenclature. An appendix listing the…
Identification by HPLC-PAD-MS and quantification by HPLC-PAD of phenylethanoid glycosides of five Phlomis species.
- H. Kırmızıbekmez, P. Montoro, S. Piacente, C. Pizza, A. Dönmez, İ. Çalış
- ChemistryPhytochemical analysis : PCA
The qualitative and quantitative determination of phenylethanoid glycosides in methanolic extracts of five species of the genus Phlomis (Lamiaceae) has been investigated using a new reversed-phase…
Analysis of the Volatile Components of Five Turkish Rhododendron Species by Headspace Solid-Phase Microextraction and GC-MS (HS-SPME-GC-MS)
- D. Taşdemir, B. Demirci, Fatih Demirci, A. Dönmez, K. Baser, Peter Rüedia
- Chemistry, MedicineZeitschrift fur Naturforschung. C, Journal of…
- 1 December 2003
This study indicated appreciable intra-specific variations in volatile compositions within the genus Rhododendron, and different anatomical parts also showed altered volatile profiles.
Composition of the essential oil of Perilla frutescens (L.) Britton from Turkey
Water-distilled essential oil from the aerial parts of Perilla frutescens (L.) Britton, a recently recorded species in Turkey, was analysed by GC and GC–MS; 15 compounds were characterized,…
Secondary Metabolites from Phlomis syriaca and Their Antioxidant Activities
An iridoid glucoside, lamiide (1); 4 phenylethanoid glycosides, acteoside (2), b-OH acteoside (3), leucosceptoside A (4) and samioside (5); a caffeic acid ester, chlorogenic acid (6); 2 flavone…
Inhibiting activities of the secondary metabolites of Phlomis brunneogaleata against parasitic protozoa and plasmodial enoyl-ACP Reductase, a crucial enzyme in fatty acid biosynthesis.
The inhibitory potential of the pure metabolites against plasmodial enoyl-ACP reductase (FabI), which is the key regulator of type II fatty acid synthases (FAS-II) in P. falciparum, was also assessed.
Anti-protozoal and plasmodial FabI enzyme inhibiting metabolites of Scrophularia lepidota roots.
A new species of Nigella (Ranunculaceae) from Turkey
Morphological differences between the species and the closely related species, N. sativa, are discussed and the IUCN threatened category is proposed and a distribution map of the new species and its related taxon is given.
Taxonomy of the genus Prunus L. (Rosaceae) in Turkey.
The taxonomy of the genus PrunusL. in Turkey is studied in detail. According to morphological characters, descriptions of the species have been evaluated and completed. P. kurdica Fenzl ex Fritsch,…