Zaporožskij Medicinskij Žurnal (Feb 2017)
Identification of phytosterins in Urtica dioica L. (overground part)
Abstract
Long since Urtica dioica L. was used in folk medicine as vitamin and hemostatic agents. Nowadays hypotensive, diuretic, antitumoral effects of medicines obtained from plant based raw materials from Urtica were experimentally proved. Pharmacologic activity is due to vitamins K1 and C, flavonoids, hydroxycinnamic acids, carbonic acids, polysaccharides containing in the leaves of plant. Using underground organs of plant as antineoplastic drugs is connected with phytosterins accumulation. Studying composition and assessment of phytosterins in overground part of plant is urgent now. The aim of research is to identify components and to assess phytosterins content in leaves and herb of Urtica dioica L. in Ukrainian flora. Materials and Methods. For chromato-mass spectrometry leaves and herb gathered in blossoming period have been used. The samples have been extracted with methylene chloride in presence of tridecane inner standard, and then the samples have been concentrated and submitted to chromatography on chromatograph Agilent Technology 6890N. The components have been identified using register for mass spectra NIST02 and WILEY2007 in combination with identification programs AMDIS and NIST. Results and Discussion. In both types of raw materials from Urtica dioica L. it has been revealed identical compounds related to olefins, higher aliphatic carbohydrates, phytosterins and so on. The total amount of biologically active substances extracted from the leaves is 529.76 mg/kg, from herbs it is 516.91 mg/kg. Untriacontane, nonocosane and trans-neophytadiene were predominant. Phytosterins stigmas-3,5,7-triene, campesterol, β-sitosterol presented in leaves 16.14 mg/kg, in herb they presented 15.42 mg/kg, that forms 3% approximately Conclusions. Composition and amount of phytosterins containing in leaves and herb of Urtica dioica L. study has been performed by chromate-mass-spectrometry. As a result three compounds of steroid nature have been identified: stigmas-3,5,7-trien, campesterol, β-sitosterol. Amount of phytosterins is approximately 3 %.
Keywords
