Chima, NK and Nahar, L and Majinda, RRT and Celik, S and Sarker, SD (2014) Assessment of free-radical scavenging activity of Gypsophila pilulifera: assay-guided isolation of verbascoside as the main active component. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY, 24 (1). pp. 38-43. ISSN 0102-695X
Gypsophilia_BJP2013.pdf - Published Version
Gypsophila pilulifera, Boiss & Heldr, Caryophyllaceae, is a perennial medicinal herb that grows in the southwestern region of Turkey. Except for only one report on the isolation of cytotoxic saponins from the underground parts of G. pilulifera, there are no published thorough phytochemical or bioactivity studies on this species. In the present study, the free-radical scavenging activity of extracts and fractions of the stems of G. pilulifera was evaluated, using a slightly modified and more precise version of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, reported here for the first time. The DPPH assay-guided HPLC-PDA-purification of the active solid-phase extraction fraction (50% methanol in water) of the methanolic extract exhibited verbascoside as the main free-radical scavenger present in this species. The structure of this active compound was resolved by spectroscopy, and the free-radical scavenging potential of verbascoside was determined.
Keywords : Gypsophila pilulifera; Free-radical scavenger; Solid-phase extraction; High-performance liquid chromatography (HPLC); Phenylethanoid; Verbascoside.
|Uncontrolled Keywords:||Science & Technology; Life Sciences & Biomedicine; Chemistry, Medicinal; Pharmacology & Pharmacy; CHEMISTRY, MEDICINAL; PHARMACOLOGY & PHARMACY; Gypsophila pilulifera; Free-radical scavenger; Solid-phase extraction; High-performance liquid chromatography (HPLC); Phenylethanoid; Verbascoside; AERIAL PARTS; IN-VITRO; PHENYLETHANOID GLYCOSIDES; CASTILLEJA-TENUIFLORA; CALCEOLARIA-TALCANA; OXIDATIVE STRESS; BIOACTIVITY; EXTRACTS; ASTERACEAE; SEEDS|
|Subjects:||Q Science > QD Chemistry
R Medicine > RS Pharmacy and materia medica
|Divisions:||Pharmacy & Biomolecular Sciences|
|Publisher:||SOC BRASILEIRA FARMACOGNOSIA|
|Date Deposited:||06 Feb 2015 12:10|
|Last Modified:||06 Feb 2015 12:10|
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