Chemical composition of volatile compounds and antioxidant activities of essential oil, aqueous and ethanol extracts of wild Tunisian Ruta chalepensis L. (Rutacea)

Dynamic Chiropractic

关键词: Ruta chalepensis;    hydrodistillation;    headspace;    ketones;    esters;    antioxidant activity.;   

DOI  :  10.5897/JMPR11.1121

学科分类：医学（综合）

来源: MPA Media

【 摘 要 】

The chemical composition of the volatile fractions of two populations ofRuta chalepensisL. (Rutaceae) collected, at the vegetative stage, from two areas of theSouth-East of Tunisia (Sdira and Thoujene)were analysed. The volatile fractions were extracted from the leaves by hydrodistillation orstatic headspace, then analysed by gas chromatography flame ionization detector (GC/FID) and gas chromatography/mass spectrometry (GC/MS). Octyl acetate (24.22 to 33.16 %), 2-undecanone (12.43 to 23.82%) and 2-nonanone (14.11 to 41.69%)were found to be major components of the volatiles extracted by hydrodistillation or head space method.Minor components revealed by hydrodistillation were not detected by head space extraction. However, hexadecanoic acid (10.2%) and di(ethylhexyl) phthalate (12.73%)were detected only inheadspace ofR. chalepensisleaves from Thoujene.Unlike theessential oil, the ethanolandtheaqueous extracts revealed interesting antioxidant activities including2,2-diphenyl-1-picrylhydrazyl(DPPH) radical-scavenging activity, reducing power and metal (Fe2+) chelating activity and could be considered as important sources of natural antioxidants.

【 授权许可】

Unknown