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Dissertations / Theses on the topic 'Medicinal plant phytochemicals'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Kumar, Suresh. "In vitro effects of medicinal plant extracts and phytochemicals on factors implicated in Alzheimer's disease." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.577147.

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BACKGROUND: Alzheimer's disease (AD) is a complex, multifactorial neurological disorder characterized by an insidious onset with progressive symptoms of memory impairment, language deficit, behavioural problems including agitation, mood disturbances and poor judgment. AD involves multiple pathogenetic factors such as A~ production and aggregation, oxidative stress, tau protein aggregation, metal ions (e.g. Cu2+, Zn2+, Fe2+) and reduced levels of acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) enzymes. All these factors play important roles in neurodegeneration associated with AD.

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2

Mbandezi, Yamkela. "Evaluation of cytotoxic activity of gold nanoparticles naturally synthesised from South African indigenous medicinal plant extracts." University of the Western Cape, 2018. http://hdl.handle.net/11394/6786.

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>Magister Scientiae - MSc<br>Nanotechnology has emerged as a promising field in the quest to address health conditions. Green nanotechnology is a fairly new branch of nanotechnology, which aims to produce and utilize nanomaterials in a way that is safe for living organisms and their environment. Plant extracts are increasingly used in the green synthesis of gold nanoparticles (AuNPs), which involves the reduction of sodium tetrachloroaurate (III) dehydrate by phytochemicals present in the plant extract. It is probable that the green synthesised AuNPs are more biocompatible than chemically synt

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3

Ncise, Wanga. "Environmental stress effects on the phytochemistry and bioactivity responses of a South African medicinal bulbous plant, Tulbaghia violacea Harvey (Alliaceae)." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2854.

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Thesis (MTech (Horticulture))--Cape Peninsula University of Technology, 2018.<br>Deteriorating living and environmental conditions have contributed to the increasing prevalence of diseases in plants and animals. In humans, accumulation of abnormally high levels of free radicals in the tissues has been implicated in many non-communicable diseases, such as diabetes, cancer, arthritis, ischemia, gastritis, obesity and asthma. Worldwide, there is recognition of need to improve plant and animal health. Tulbaghia violacea (Alliaceae) is a medicinal plant that is extensively harvested by traditional

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4

Habtemariam, Solomon. "Phytochemical and pharmacological investigation of some medicinal plants." Thesis, University of Strathclyde, 1992. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21299.

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This thesis describes phytochemical and biological/pharmacological studies on six medicinal plants. Plant materials were extracted by ethanol, tested for their biological activity and then subjected to "bioassay-guided fractionation" to yield active and inactive compounds. The compounds were identified by standard physico-chemical techniques including UV, IR, NMR and ElMS. The crude ethanol extract of the leaves of Premna shcimperi was found to be antibacterial against gram positive bacteria (Staphylococcus aureus and Bacillus subtilis). An antibacterial bioassay-guided fractionation of the ex

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5

Arendse, Melissa Liezel. "Medicinal plant use in the Dwarsrivier Valley, Stellenbosch." Thesis, University of the Western Cape, 2013. http://hdl.handle.net/11394/4822.

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Magister Scientiae (Biodiversity and Conservation Biology)<br>Plants have been used as medicine since antiquity. Passed on by word of mouth through the generations, this oral tradition is at risk of becoming extinct due to westernization and lack of documentation. The community in the Dwarsrivier valley is one such community who continues to use these medicinal plant remedies on a daily basis. However, these remedies are at risk of becoming extinct due to a lack of interest from the younger generation. The objectives of the study were to identify the plants used for medicinal purposes, provide

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6

Juan-Badaturuge, Malindra. "Antioxidant activity and phytochemical evaluations of selected medicinal plants." Thesis, University of Greenwich, 2010. http://gala.gre.ac.uk/8098/.

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The methanolic crude extract of aerial parts of the plant Scrophularia nodosa was shown to have potent DPPH radical scavenging activity (IC50 = 48.75 ± 7.00 μg/ml). Activity-guided fractionation resulted in the isolation of three principal antioxidant compounds; acteoside, angoroside C and angoroside A. Acteoside (yield = 1.21%, IC50 = 15.2 μM) appeared to be the most abundant and most antioxidant-active. The potent antioxidant activity is in support of the traditional use of the plant for wound healing and anti-inflammatory conditions. The methanolic extract of aerial parts of Tanacetum vulga

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7

Chen, Dianne Tzu-Hsiu. "Phytochemical studies on traditional medicinal plants with antimalarial activities." Master's thesis, University of Cape Town, 1997. http://hdl.handle.net/11427/21853.

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The active antimalarial principles of three traditional medicinal plants, Passerina obtusifolia (Thymelaeaceae), Tetradenia riparia (Labiatea) and Xerophyta retinervis (V elloziaceae) were investigated by employing bioassay guided fractionation. Two novel compounds and five known constituents were isolated from the active fractions of these three plants. The types of compounds isolated included: three triterpenoids (20(29)-Lupene-3α,28- diol (30), 20(29)-Lupene-3α, 16β,28-triol (32) and 3β-Hydroxy-20(29)-Lupen-28-oic acid (42)); two diterpenoids (8-Abietene-7 β,13 β -diol (45) and cariocal (51

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8

Khatri, Taslimahemad [Mitwirkender], Pragna L. [Mitwirkender] Mori, Vijay R. [Mitwirkender] Ram, Pragnesh N. [Mitwirkender] Dave, and Balubhai A. [Mitwirkender] Golakia. "Neutraceutical, Phytochemical characterization and Antibacterial activity of Medicinal plant Moringa Oleifera." München : GRIN Verlag GmbH, 2014. http://d-nb.info/1067548262/34.

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9

Sanchez-Medina, Alberto. "Phytochemical and pharmacological studies on some endemic Yucatecan medicinal plants." Thesis, University of Greenwich, 2007. http://gala.gre.ac.uk/6291/.

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Four endemic medicinal plants from the Yucatan peninsula belonging to genera with little pharmacological and phytochemical reported information and used for medicinal purposes by local communities were selected. The species selected included Jacquinia flammea Millsp. ex Mez, Sideroxylon foetidissimum Jacq. subsp. gaumeri, Serjania yucatanensis Standl., and Serjania adiantoides Radlk. The root, stem/bank and leaves of each plant species were extracted using ethanol and the resulting crude extracts were tested for their cytotoxic effect using the modified MTT (3-[4,5-Dimethylthiazol-2-yl]-2,5-di

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10

Ermeli, Nouri B. "Phytochemical and anti-trypanosomal studies of some Libyan medicinal plants." Thesis, University of Strathclyde, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501816.

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11

Gutu, Ketema Tolossa. "Bioassay-guided phytochemical study of indigenous medicinal plants of Ethiopia." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/28964.

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In many developing countries, farmers and pastoralists still rely on their indigenous knowledge, practices and locally available plants to control nematode parasitic infections, both in livestock and humans. The overall aim of my thesis was to undertake bioassay-guided phyto-chemical study of extracts and their constituents from Ethiopian anti-parasitic plants used by healers to control gastrointestinal nematode parasites in livestock to validate their ethno-medicinal use and to characterise and identify their active ingredients. As a first experiment (Chapter Three), four types of crude extra

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12

Faraone, Immacolata. "Pharmacological potential and phytochemical profile of three unexplored medicinal plants." Doctoral thesis, Universita degli studi di Salerno, 2019. http://elea.unisa.it:8080/xmlui/handle/10556/4256.

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2017 - 2018<br>Nature is a wide source of biologically active compounds investigated with the purpose to be used as drugs due to their biological activity and also useful in pharmaceutical discovery and drug design. Nowadays, medicinal plants play a major role in primary health care as therapeutic remedies in many developing countries. The aim of my PhD project was the phytochemical and biological investigation of three plant species, used in Bolivian traditional medicine, but few scientific studies were reported, such as: Azorella glabra Wedd., Minthostachys diffusa Epl. and Senecio cli

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13

Wake, George. "Cholinergic phytochemicals from medicinal herbs : potential sources of novel dementia treatments." Thesis, University of Newcastle Upon Tyne, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366551.

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14

He, Kan. "Phytochemical investigations of medicinal plants from Chile and the Fiji Islands." Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/187042.

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In this dissertation, three different medicinal plants from Chile and the Fiji Islands, Baccharis linearis (R. et P.) Pers, Aristotelia chilensis (Mol.) Stuntz, and Dysoxylum lenticellare Gillespie were chemically studied. Fourteen compounds isolated from Baccharis linearis were identified based on IR, NMR and mass spectroscopic methods. These constituents included three new neo-clerodane type diterpenes, baclinal (1), baclinepoxide (2), and 13-epi-baclinepoxide (3), as well as one new perhydroazulene derivative, baclinic acid (6). The other identified compounds included portulide B (4), jewen

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15

KHALIL, MOHAMAD. "Phytochemical composition and biological activity of extracts from Lebanese medicinal plants." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1002418.

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The Mediterranean area especially the eastern part including Lebanon, is rich in term of plant biodiversity, including high valuable medicinal plants that are largely used by people as herbal medicine, these plants represent an important source of plant-derived bioactive compounds, besides, there is a need to characterize these compounds, evaluate their bioactivity and clarify scientifically the use of these plant as traditional and alternative medicine, lack of these information may limit their use, by contrast, studying the compositions and bioactivity of these plants may improve their use,

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16

Tsui, Wing-yan Pamela. "Phytochemical investigation of plants used in traditional medicine in Hong Kong /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17594303.

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17

Battu, Ganga Rao. "Anti-inflammatory and phytochemical studies of a Kenyan traditional medicinal plant, Commiphora kua." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366837.

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18

Dutta, Sikha. "Studies on some oxidation reactions of triterpenoids and phytochemical investigation on Indian medicinal plants." Thesis, University of North Bengal, 1985. http://hdl.handle.net/123456789/813.

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19

Chawananorasest, Khanittha. "Phytochemical and antimicrobial studies of some medicinal plants from south east Asia." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=17196.

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This thesis presents the isolation and structure elucidation of a range of secondary metabolites from four selected medicinal plants from Southeast Asia; Thailand and Bangladesh, namely, Cassia tora, Piper betel, Brugueira gymnorrhiza and Avicennia alba. A Variety of natural products belonging to several classes were isolated and investigated for their biological activity. The evaluation of Piper betel extracts for antimicrobial activity and some second metabolites isolated from Piper betel for Antimethicillin-Resistant Staphylococcus aureus activity (MRSA) were targeted in this thesis. A tota

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20

Altemimi, Ammar Badran. "ULTRASONIC APPLICATIONS- PHYTOCHEMICAL ANALYSES OF SOME MEDICINAL NATURAL PRODUCTS IN FOOD PLANTS." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/dissertations/1149.

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There are concerns about using synthetic phenolic antioxidants such as butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA) as food additives because negative effects to human health have been reported. thus, a replacement of these synthetics by antioxidant extractions from various foods has been proposed. By the generation of more than eight thousand different phenolics, fruits and vegetables are the prime sources of natural antioxidants. The consumption of fruits and vegetables has been strongly linked with several health benefits, a result of their medicinal properties and high

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21

Adefuye, Ogheneochuko Janet. "Anti-diabetic and phytochemical analysis of sutherlandia frutescens extracts." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/3549.

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In Africa, the importance of medicinal plants in folklore medicine and their contribution to primary healthcare is well recognized. Across the continent, local herbal mixtures still provide the only therapeutic option for about 80% of the population. The vast floral diversity and the intrinsic ethnobotanical knowledge has been the backbone of localized traditional herbal medical practices. In Africa, an estimated 5400 of the 60000 described plant taxa possess over 16300 therapeutic uses. Similarly, with a therapeutic flora comprising of approximately 650 species, herbal medical practitioners i

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22

Omar, Maizatul Hasyima. "Analysis of phytochemical in a Malaysian medicinal plant and the bioavailability of dietary hydroxycinnamates." Thesis, University of Glasgow, 2013. http://theses.gla.ac.uk/4439/.

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The first study was looking into the phytochemical analysis of herbal medicinal plant from Malaysia. Phenolic compounds in an aqueous infusion from leaves of Ficus deltoidea (Moraceae), a well-known herbal tea in Malaysia, were analysed by HPLC coupled to photodiode-array and fluorescence detectors and an electrospray ionization tandem mass spectrometer. Following chromatography of extracts on a reverse phase C12 column 25 flavonoids were characterized and/or tentatively identified, with the main constituents being flavan-3-ol monomers, proanthocyanidins and C-linked flavone glycosides. The pr

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23

Swartz, Vuyiswa Gladys. "Phytochemical studies of Helichrysum patulum." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_3651_1189147447.

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<p>Since Helichrysum is known by the indigenous people of Africa for therapeutic properties, such as against colds, flu and wounds, the aim of this study was to focus on the patulum species found predominantly in the Western Cape region of South Africa and by means of isolation and identification of the plant constituents, be able to relate the therapeutic activity on the basis of literature precedents, to the compounds extracted.</p>

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24

Ankli, Anita Sabine. "Yucatec Mayan medicinal plants : ethnobotany, biological evaluation and phytochemical study of Crossopetalum gaumeri." [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13555.

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25

Uche, Fidelia Ijeoma. "Phytochemical analysis and evaluation of anticancer and antimalarial properties of four medicinal plants." Thesis, Keele University, 2017. http://eprints.keele.ac.uk/3080/.

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Cancer and malaria are among the most life-threatening diseases globally. Cancer is responsible for about 125,000 annual deaths globally. In 2015, the World Health Organization report estimated that 236000-635000 people died of malaria. These diseases are complicated by the development of resistance to available chemotherapeutic agents. Natural products have been recognized for their major applications in the identification of drug leads in drug discovery. Viola philippica Car, Viola yedoensis Makino (Violaceae), Triclisia subcordata Oliv (Menispermeaceae) and Cyclicodiscus gabunensis Harms (F

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26

Wang, Jingrong. "Phytochemical and pharmacological studies of the root of ilex pubescens." HKBU Institutional Repository, 2008. http://repository.hkbu.edu.hk/etd_ra/899.

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27

Mngeni, Nasipi Zamanala. "Bioactive compounds from selected medicinal plants used in antidiabetic treatment." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2665.

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Thesis (MTech (Chemistry))--Cape Peninsula University of Technology, 2017.<br>The continued use and popularity of plant-based traditional medicine demands scientific validation of the therapeutic potential of the medicinal plants used in disease management and treatment. These medicinal plants are to be evaluated for phytochemical constituents and pharmacologically screened for their bioactivity and include the isolation and identification of their bioactive compounds. The diabetes tea and its eight individual plants constituents were collected from Sing Fefur Herbs in McGregor, Western Cape.

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28

TENÓRIO, Rodrigo Ferreira Lima. "Avaliação do conhecimento dos tutores de cães e gatos atendidos no Hospital Veterinário da Universidade Federal Rural de Pernambuco sobre plantas medicinais e da atividade antimicrobiana in vitro do barbatimão (Abarema cochliacarpos) em bactérias isoladas de feridas cutâneas de cães." Universidade Federal Rural de Pernambuco, 2012. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5853.

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Submitted by (edna.saturno@ufrpe.br) on 2016-11-04T12:42:27Z No. of bitstreams: 1 Rodrigo Ferreira Lima Tenorio.pdf: 1400860 bytes, checksum: cec1205a2e5fa46bb713ef0480279584 (MD5)<br>Made available in DSpace on 2016-11-04T12:42:27Z (GMT). No. of bitstreams: 1 Rodrigo Ferreira Lima Tenorio.pdf: 1400860 bytes, checksum: cec1205a2e5fa46bb713ef0480279584 (MD5) Previous issue date: 2012-02-06<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The use of medicinal plants is common among the population of developing countries, often presenting itself as the only therapeuti

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29

Srijayanta, Sairavee. "Biological and phytochemical studies on some traditional anti-diabetic plants." Thesis, King's College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367943.

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30

徐永欣 and Wing-yan Pamela Tsui. "Phytochemical investigation of plants used in traditional medicine in Hong Kong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31213704.

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The Best M.Phil Thesis in the Faculties of Dentistry, Engineering, Medicine and Science (University of Hong Kong), Li Ka Shing Prize,1995-1997<br>published_or_final_version<br>Chemistry<br>Master<br>Master of Philosophy

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31

Wijeweera, Priyantha. "Phytochemical basis for the anxiolytic activity of the ayurvedic medicinal plant Centella asiatica (L) Urb (gotukola)." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/26349.

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Gotukola (Centella asiatica L. Urban) (Apiaceae), its extracts and the pure compound asiaticoside were studied for anxiolytic activity in thirteen standardized rat trials. High performance liquid chromatography (HPLC) was used to conduct the phytochemical analysis. Among different models tested, the most promising positive response for anxiolytic activity was observed in the elevated plus maze test conducted with: (a) whole plant materials, (b) ethyl acetate and methanol fractions and (c) asiaticoside. The results show for the first time that asiaticoside and triterpene enriched fractions of g

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32

Harris, Taahir. "Bambara groundnut (Vigna subterranean) from Mpumalanga province of South Africa: phytochemical and antimicrobial properties of seeds and product extracts." Thesis, Cape Peninsula University of Technology, 2017. http://hdl.handle.net/20.500.11838/2789.

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Thesis MTech (Food Technology))--Cape Peninsula University of Technology, 2017.<br>Bambara groundnut (Vigna subterranea) an indigenous legume cultivated in Sub-Saharan Africa has been proclaimed to have medicinal properties from communities and in rural areas. However, there is not enough scientific information to validate these claims. Therefore, this study aimed to identify possible medicinal properties of Bambara groundnut (BGN), by analysing the phytochemical and antimicrobial properties of BGN seed and product extracts from Mpumalanga province within South Africa. The BGN extracts (70% me

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33

Zhang, Qi. "The study of novel dioxin antagonist-euxanthone and its derivatives." HKBU Institutional Repository, 2003. http://repository.hkbu.edu.hk/etd_ra/507.

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34

Chiguvare, Herbert. "Phytochemical analyses and Brine shrimp (Artemia Salina) lethality studies on Syzygium cordatum." Thesis, University of Fort Hare, 2013. http://hdl.handle.net/10353/d1004352.

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Syzygium cordatum Hoscht ex. C Krauss, also known as water berry, is normally used by the people of South Africa for respiratory ailments including tuberculosis, stomach complaints, treatment of wounds and as emetics. An extract of the leaves can be used as a purgative for diarrhoea treatment. The leaves of Syzygium cordatum Myrtaceae were obtained from the Eastern Cape Province of South Africa, air dried and sequential solvent extraction was done to obtain various non volatile crude extracts. The volatile extract, that is the essential oil was extracted from the leaves using hydrodistillation

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35

Magora, Baboloki Helen. "Phytochemical and toxicological studies of some Botswanan plants used in traditional medicine." Thesis, University of Strathclyde, 2003. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21197.

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Traditional medicine is widely used in Botswana and in recent years a number of plant species have been submitted to the Botswana Police Forensic Science Laboratory by the Police as exhibits in cases of suspected poisoning by herbal medicine. The request would be for the forensic toxicologist to establish whether the plant material is toxic or not. In this study a 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), Alb

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36

Sagbo, Idowu Jonas. "Phytochemical analysis and antibacterial properties of aqueous and ethanol extracts of Brachylaena elliptica (Thurb.) dc. and Brachylaena ilicifolia (Lam.) Phill & Schweick." Thesis, University of Fort Hare, 2015. http://hdl.handle.net/10353/d1021289.

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Resistance of human pathogenic bacterial strains results in selective pressure against known antibiotic. However, plant derived compounds that possess antibacterial potential are currently being investigated for treatment of wound infections in diabetic patients as they are inexpensive and non-toxic. Hence, this dissertation was designed to evaluate two medicinal plants (Brachylaena elliptica and Brachylaena ilicifolia) traditionally used in the treatment of various diseases such as diabetes, and its secondary complications in diabetic patients. The in vitro antioxidant activity of both plants

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Nqolo, Nandipha Lucia. "Phytochemical study of Rhoicissus tomentosa." Thesis, University of the Western Cape, 2008. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_3223_1263940394.

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<p>This investigation focused on Rhoicissus tomentosa, belonging to the family, Vitaceae in an attempt to assess the phytochemistry of this plant which is widely used by traditional healers in South Africa to ensure the safe delivery during pregnancy and childbirth (Hutchings et al., 1996).</p>

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Njume, Collise. "Phytochemical analysis and bioactivity of selected South African medicinal plants on clinical isolates of Helicobacter pylori." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/449.

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Medicinal plants have been used as traditional medicine in the treatment of numerous human diseases for thousands of years in many parts of the world. In the developing world, especially in rural areas, herbal remedies continue to be a primary source of medicine. Scientifically, medicinal plants have proven to be an abundant source of biologically active compounds, many of which have already been formulated into useful therapeutic substances or have provided a basis for the development of new lead molecules for pharmaceuticals. Antibiotic resistance, undesireable side effects and expences asso

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Al-Dulaimi, Omar Ahmed Abass. "Phytochemical composition and antimicrobial properties of four plants indicated for traditional medicine use." Thesis, Keele University, 2017. http://eprints.keele.ac.uk/3078/.

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The rapid development of seriously drug-resistant pathogen strains has created a dangerous problem to public health. The discovery of new effective antimicrobials remains an urgent task to control microbial resistance. Natural products can offer special stereochemistry and unlimited diversity of natural leads which are biologically active or ready for development and structure optimization strategies. Four medicinal plants Cylicodiscus gabunensis (CG), Pogostemon cablin (PC), Perilla frutescens (PF) and Magnolia biondii (MB) were selected for investigation of their phytochemical composition an

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Sirdaarta, Joseph P. "Phytochemical Study and Anticancer Potential of High Antioxidant Australian Native Plants." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/365567.

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High antioxidant capacities have been linked with a reduction in the incidence of chronic diseases including cardiovascular disease, diabetes, obesity, neurodegeneration, inflammation and cancer. Furthermore, phenolic antioxidants may not only have protective effects against these diseases, but may also have therapeutic potential in reversing them by modulation of the cellular redox state. Thus, plants with high antioxidant capacities have potential in the development of new chemotherapeutic treatments to prevent and treat some cancers. Several native Australian plant species including Termin

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41

Nick, André. "Biological screening of traditional medicinal plants from Papua New Guinea and subsequent phytochemical investigation of Dillenia papuana /." [S.l.] : [s.n.], 1995. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=11231.

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Quadri-Spinelli, Tulla. "Biological screening of medicinal plants from Papua New Guinea and phytochemical investigation on the fern Cyclosorus interruptus /." [S.l.] : [s.n.], 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13820.

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Frei, Barbara. "Medical ethnobotany of the Isthmus-Sierra Zapotecs (Oaxaca, Mexico) and biological-phytochemical investigation of selected medicinal plants /." Zürich : ETH, 1997. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12324.

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44

Wang, Yinu. "Relationships among Rubus (Rosaceae) Species used in Traditional Chinese Medicine." TopSCHOLAR®, 2011. http://digitalcommons.wku.edu/theses/1073.

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Traditional Chinese medicine has a long history of using plants therapeutically including multiple species of the genus Rubus (Rosaceae). Fruits and other parts of Rubus plants have had a significant effect on human health and nutrition in both ancient and modern times. The pharmacological effects of Rubus include anti-inflammatory, antibacterial, anti-stress, anti-cancer and anti-aging properties. One of the current challenges limiting further development of Rubus resources in traditional Chinese medicine is a poor understanding of phylogenetic relationships among Rubus species in general and

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Okpako, Larry Commander. "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." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/6304.

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Malaria affects hundreds of millions of people worldwide and equally claims hundreds of thousands of lives each year. With the current spread of drug resistance to standard antimalarial drugs like chloroquine and the emergence of artemisinin-resistant parasites, new antimalarial drugs and formulations are urgently needed. An ethnobotanical survey was carried out in this study in search of novel compounds with promising antiplasmodial activity. Using the ethnobotanical approach, a total of 61 plant species from 59 genera distributed in 34 plant families were found to be used traditionally for

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Harris, Cory S. "Anti-diabetic and neuroprotective activities of phytochemicals in traditionally used boreal plants." Thesis, University of Ottawa (Canada), 2008. http://hdl.handle.net/10393/30161.

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This thesis investigated the phytochemistry and pharmacology of boreal plant species used traditionally as treatments for symptoms and complications of diabetes and was completed in collaboration with the Team in Aboriginal Anti-Diabetic Medicine and the Cree of Eeyou Istchee in northern Quebec. Using a novel metabolomic-based approach, we first developed methods of phytochemical analysis to characterize Vaccinium angustifolium extracts and then other medicinal Ericaceae, identifying and quantifying an abundance of phenolic compounds. These methods were then employed to profile the phenolics

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SAAB, Antoine. "Phytochemical analysis, antiproliferative against k562 humam chronic myelogenus leukemia, antiviral and hypoglycaemic activities of cedrus species and medicinal plants native from Libanon." Doctoral thesis, Università degli studi di Ferrara, 2011. http://hdl.handle.net/11392/2388806.

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There are four kinds of Cedar, three of them naturally present in the Mediterranean Sea region: Cedrus libani, in Lebanon, Syria and Turky, Cedrus atlantica in Algeria and Morocco, Cedrus brevifolia in Cyprus Island While Cedrus deodara in Himalaya Mountains . The wood essential oils of C. libani, C .atalantica and C. deodara inhibited the proliferation of k 562 cell line with IC50 Value of 23.38, 59.37 and 37.09 µg.ml-1 respectively. Meanwhile Cedrus libani wood oils showed a percentage of erythroide differentiation of 15% at the concentration of 5µg.ml-1another side Cedrus deodara wood oil

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Nethathe, Bono Bianca. "Bioactivity and phytochemical analysis of Hydnora Africana on some selected bacterial pathogens." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/d1001063.

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Abstract Medicinal plants have been for long remedies for human diseases because they contain components of therapeutic value. The growing problem of antibiotic resistance by organisms demands the search for novel compounds from plant based sources. The present study was aimed at evaluating the bioactivity and phytochemical analysis of Hydnora africana on clinical and standard strains of Helicobacter pylori (PE 252C and ATCC 43526), Aeromonas hydrophila ATCC 35654, and Staphylococcus aureus NCT 6571 in an effort to identify potential sources of cheap starting materials for the synthesis of new

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Rasul, Mohammed Golam. "Phytochemical investigation of some medicinal plants transformative reaction on the isolated organic compounds and studied on their biological activities." Thesis, University of North Bengal, 2010. http://hdl.handle.net/123456789/1370.

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Makule, Edna [Verfasser], and Jörg [Akademischer Betreuer] Heilmann. "Ethnopharmacological survey and phytochemical investigation of Maasai traditional medicinal plants from north-eastern Tanzania / Edna Makule ; Betreuer: Jörg Heilmann." Regensburg : Universitätsbibliothek Regensburg, 2018. http://d-nb.info/1149920262/34.

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