Investigation of Constituents and Biological Activity of Oils From Some Medicinal Plants Grown in Sudan

Abstract

In this study the oils from five plants of medicinal attributes (Croton cordofana, Cissus quadrangularis, Syzygium aromaticum ,Croton zambesicus and Hibiscus sabdariffa) have been investigated by GC-MS and the antimicrobial activity has been screened. Gas chromatography - mass spectrometry has been used for the identification and quantification of the constituents of Syzgium aromaticum oil. The analysis revealed the presence of 13 components dominated by: eugenol (60.35%). GC-MS analysis of Croton zambesicus oil revealed the presence of 22 components dominated by :9-octadecenoic acid methyl ester(12.98%). Hibiscus sabdarifa oil gave 24 constituents. Major component being :9-octadecenoic acid (Z)-, methyl ester (30.23%). Cissus quadrangularis oil was studied by GC-MS. The analysis showed the presence of 37 constituents dominated by:E,E,Z-1,3,12-nonadecatriene-5,14-diol(22.11%). Croton cordofana oil revealed the presence of 19 components. Major component is: 9 , 12-octadecadienoic acid methyl ester (44.32% ).The target oils have been assessed for their antimicrobial potency and different antimicrobial responses has been observed.