Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Phytochemical investigation"”.
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Phytochemical Investigation and Bioactivity Assessment of Medicinal Plant from Northern Nigeria
Boswellia dalzielii (Burseraceae) has ethnopharmacological importance and is claimed to have anti-infection and immunomodulatory effects. In the Northern part of Nigeria, a region with a tropical dry climate, an aqueous infusion of this plant is used in the treatment of infections and tumours. The …
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Phytochemical Investigation and Drug Interaction Potential of <em>Cyanotis vaga</em>
<em>Cyanotis. vaga</em> (Lour.) Schult, & Schult. f. (<em>C. vaga</em>) previously called <em>Tradescantia vaga</em> and <em>Cyanotis barbata</em>, is a perennial herb. It is native to Eastern Asia and Tropical Africa. It has been reported that its decoction reduces fever and enhances well-being. …
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Phytochemical Investigation of Psychoactive Medicinal Plants for the Treatment of Neurological Disorders
Neurological disorders include disorders such as migraine, tension-type headaches, Parkinson’s disease (PD), epilepsy, dementia, and Alzheimer’s disease (AD). Globally, PD is the second most comneurodegenerative disorder following AD. In developed countries, PD affects 1% of all population over 60 …
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Antibacterial, antioxidant and phytochemical investigation of Albizia Anthelmintica leaves, roots and stem bark
… The present study was designed to evaluate the phytochemical content, antibacterial and antioxidant activities of A. anthelmintica leaves, roots and stem bark ethanol extracts. Antibacterial activity was carried out by means of the agar disc diffusion method. The anti-oxidative activities of the …
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Antibacterial, antioxidant and phytochemical investigation of Acacia Arenaria, Aloe Esculenta and Pechuel-Loeschea Leubnitziae
… the antibacterial, antioxidant properties and phytochemical analysis of Acacia arenaria (Fabaceae), Aloe esculenta (Alliaceae) and Pechuel-Loeschea leubnitziae (Asteraceae) that are used in traditional settings. The antimicrobial activity of the methanol-dichloromethane (DCM) (1:1) extracts of …
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Safety Assessment and Chemical Fingerprint Analysis of Medicinal Plants Commonly Consumed As Herbal Teas; Rooibos (<em>Aspalathus Linearis</em>) and Moringa (<em>Moringa Oleifera</em>)
… activity of CYP450 isozymes. In chapter two, the phytochemical investigation of <em>A. linearis</em> resulted in the isolation and characterization of 14 phenolic compounds. Safety assessment of the phytochemicals through interaction with CYP, PXR, and P gp was conducted. The results indicate that …
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Phytochemical investigation and biological activities of Sanicula europaea and Teucrium davaeanum. Isolation and identification of some constituents of Sanicula europaea and Teucrium davaeanum and evaluation of the antioxidant activity of ethanolic extracts of both plants and cytotoxic activity of some isolated compounds
The aim of this research was to investigate the phytochemistry of two species Sanicula europaea and Teucrium davaeanum which are traditionally used in treatment of wounds. Four compounds were isolated from the 80% methanolic extract of S. europaea; bis-(2-ethylhexyl) phthalate (1), palmitic acid …
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Diterpenes as models for the study of their effect on neural progenitor cells and on cytochrome p-450 enzymes
… data were explored following two basic axes: 1- Phytochemical investigation : Phytochemical investigation on latex of Euphorbia resinifera led to the ísolation and identification of eighteen diterpene compounds, including one 12,20-dideoxyphorbol 13-ester, eight 12-deoxyphorbol 13-ester, five …
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The distribution of free amino acids in Diastella Salisb., Leucospermum R. Br. and some other members of the Proteaceae
This thesis reports on a phytochemical investigation with the view to supplementing morphological data with chemical data for a further taxonomic study of the relationship between Diastella, Leucospermum and the putative hybrid. This investigation was a part of a broader phytochemical study being …
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Investigation of selected Nigerian medicinal plants as a source of new antimalarial agents. Isolation of phytochemicals from some Nigerian medicinal plants using chromatographic techniques and their evaluation for antiplasmodial activity.
… were selected for further study. The phytochemical investigation of the active chloroform extracts of P. africana and P. angulata yielded several compounds with three known alkaloids, namely, prosopinine (I), prosopine (II) and acetamide (III). Their structures were confirmed by MS, 1D …
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Antimicrobial constituents of Artemisia afra Jacq. ex Willd. against periodontal pathogens
The phytochemical investigation of an ethanol extract of Artemisia afra, led to the isolation of six known compounds, Acacetin (1) 12α,4α-dihydroxybishopsolicepolide (2), Scopoletin (3) α-amyrin (4), Phytol (5) and a pentacyclic tri-terpenoid Betulinic acid (6). The isolated compounds were …
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Evaluation of indigenous medicinal plants with potential antidepressant effects
… ethnobotanical, ethnopharmacological and phytochemical studies was conducted from which Artemisia afra Jacq. ex Willd., Adenia gummifera (Harv.) Harms and Olea woodiana Knobl. were selected for evaluation. The plant materials were extracted using three solvents of increasing polarities …
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Science Based Authentication of Dietary Supplements: Studies on the Chemical Constituents, Analytical Method and Biological Activities of Scutellaria Spp and Pfaffia Paniculata
… systematic studies of herbal medicine, including phytochemical, analytical, and biological investigation.</p> <p>Two projects are included in the dissertation. The first one is the “Science Based Authentication of Dietary Supplements - Studies of Scutellaria Species on the Chemical Constituents, …
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Studies on biological activities of Scottish plants.
This thesis describes the investigation of 48 species from 26 different plant families for their bioactive properties as antioxidants, antibacterial and general toxicity. There are 45 species indigenous or naturalised to Scotland. Three Centaurea species from Turkey were also investigated to …
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On-line screening of bioactive compounds and application of comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry for the analysis of birch bark
… compounds plays an important role in the phytochemical investigation of natural plant extracts.The hyphenated techniques, which couple on-line chromatographic separation and biochemical detection, are called high-resolution screening methods. In this system, high-performance liquid …
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Phytochemical and toxocological studies of some Botswanan plants used in traditional medicine
… selection of these plants are being investigated phytochemically and toxicologically. These include: Jatropha erythropoda Pax. (Euphorbiaceae), Cassia italica (E11. ) Lam. Ex. (Leguminosae), Asclepiasfruticosa L. (Asclepiadaceae), Albizzia brevifolia Schinz (Leguminosae), Argemone mexicana L. …