Extraction and Characterisation of Phytochemicals from White Seringa (Kirkia acuminata) Bark Extracts

Chinheya, Rosa Mhlanga (2016) Extraction and Characterisation of Phytochemicals from White Seringa (Kirkia acuminata) Bark Extracts. Masters thesis, University of Zimbabwe.

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Abstract

The intention of this study was to extract and characterise phytochemicals with analgesic effect from Kirkia Acuminata bark extracts. Soxhlet extraction and Steam distillation were used for the extraction of compounds. Methanol,dichloromethane and hexane were used as solvents. Classes of phytochemicals were identified by qualitative tests and Thin Layer Chromatography using UV light.The qualitative tests of the phytochemical screening indicated the presence of alkaloids, anthraquinones, glycosides, flavonoids, phenols, tannins to name a few. Alkaloids, flavonoids, phenols and tannins were also observed on Thin Layer Chromatography. Menthol, catechol, 1,2 benzenediol 4 methyl, nitro phenyl salicylate, phenol dimethoxy,tau-cadinol, Isopropenyl,8 dimethyl, menthone and levomenthone were identified using Gas Chromatography-Mass Spectrometer.. The hexane fraction which is highly a non-polar solvent showed that very few phytochemicals were taken up in it. The polar solvents showed compatibility with the various chemical classes. The presence of these compounds gives Kirkia acuminata its characteristic property of being an analgesic. It thus finds application in the field of medicine.

Item Type:	Thesis (Masters)
Subjects:	Q Science > QD Chemistry R Medicine > RS Pharmacy and materia medica
Divisions:	Africana
Depositing User:	Tim Khabala
Date Deposited:	02 May 2018 12:45
Last Modified:	02 May 2018 12:45
URI:	http://thesisbank.jhia.ac.ke/id/eprint/3932

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