首页> 外文期刊>African Journal of Biotechnology >Isolation of ursolic acid from the leaves of Ocimum lamiifolium collected from Addis Ababa Area, Ethiopia
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Isolation of ursolic acid from the leaves of Ocimum lamiifolium collected from Addis Ababa Area, Ethiopia

机译:从埃塞俄比亚的亚的斯亚贝巴地区收集的罗汉果叶中分离熊果酸

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Ocimum lamiifolium is a well known medicinal plant in Ethiopia. Fresh leaves of the plant are squeezed and sniffed to treat colds and coughs and as an eye rinse for eye infections, while crushed leaves are used to arrest nose bleeding. In this study phytochemical investigation on the methanol extracts of this plant collected from Addis Ketema subcity, Addis Ababa. A triterpene, namely ursolic acid, was isolated using column chromatography over silica gel. The structure of this compound was identified using one dimensional Nuclear Magnetic Resonance (NMR) spectroscopic techniques such as proton NMR (1H NMR), carbon-13 NMR (13C NMR) and distortionless enhancement by polarization transfer (DEPT), two dimensional NMR spectroscopic method such as HMBC, HMQC and COSY and literature survaye.
机译:苜蓿罗汉果是埃塞俄比亚的一种著名药用植物。挤压并嗅闻植物的新鲜叶子,以治疗感冒和咳嗽,并用眼药水冲洗眼部感染,而压碎的叶子则用于阻止鼻子出血。在这项研究中,从亚的斯亚贝巴的亚的斯亚贝斯Ketema郊区收集的该植物的甲醇提取物的植物化学研究。使用硅胶上的柱色谱法分离三萜,即熊果酸。使用一维核磁共振(NMR)光谱技术(例如质子NMR(1H NMR),碳13 NMR(13C NMR)和通过极化转移的无畸变增强(DEPT),二维NMR光谱法识别该化合物的结构如HMBC,HMQC和COZY以及文献资料。

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