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 20 of 41 for “"Plant Extract"”.
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In vitro characterization of the antiviral activity of Secomet V against vaccinia virus infections
… agent SECOMET V was the reference name for a plant extract produced in a bioreactor from primary plant stem cells, whose antiviral activity has been widely reported in folklore medicine. It exerted its anti-vaccinia virus activity by neutralizing cell-free virus rather than interfering with …
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Expression of HIV-1 subtype C nef in E. coli and Nicotiana benthamiana : development of plant-based vaccines for HIV
… a TMV -based vector with the aim of developing a plant-based candidate vaccine for HIV-1. The nef gene of the DU151 isolate of mV-l subtype C taken from a recently seroconverted individual was amplified by PCR with a deletion of 59 amino acids from the cytotoxic N-terminal. The amplified gene was …
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Antiplasmodial neolignans from Trema orientalis : identification, synthesis and analogue generation.
… of new antimalarial lead compounds. Organic extracts of the young growing twigs of T. orientalis were reproducibly shown to be active against the chloroquine-sensitive (D10) and chloroquine resistant (K1) strains of Plasmodium falciparum. The 8-O-4' oxyneolignans, dadahols A and B, were …
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Antiviral potential of hadjod (Cissus quadrangularis) extract against newcastle disease virus.
… on the poultry industry. Ethanol (EtOH) crude extract from the stem of Cissus quadrangularis (CQL) was prepared and tested against Newcastle Disease Virus (NDV) replication using an in- ovo assay in embryonic chickens. Cissus quadrangularis L, is a perennial plant of the Vitaceae family, with …
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Effect of the methanolic extract of Cassia abbreviata in the oxidative stress caused by overcrowding in indigenous chickens
… natural antioxidants from medicinal plants are being adopted for use mainly because the synthetic antioxidants have been observed to have side effects. The aim of this work was to assess the effect of the stocking density on the growth performance of indigenous chickens and to …
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Synergistic effects of mixtures of fungicides and medicinal plant extracts against Botrytis cinerea
We hypothesize that South African medicinal plants contain compounds that can act in synergism with synthetic antifungal compounds. Four fungicides - Sporekill™, Rovral™, Terminator™ and Teldor™ at doses 0.1, 0.2, 0.4 and 0.8 mL L-1 and plant species Galenia africana, Elytropappus rhinocerotis and …
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Thylakoid membrane from spinach - effect of processing on their function as appetite suppressing ingredient
… for consumers shall be formulated based on a plant extract with appetite suppressing abilities, the material must maintain the functionality during industrial processing and storage. Heat treatment is often applied to assure the microbiological safety of the product, and to dry the plant …
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In vivo effects of South African traditional medicines against Mycobacterium tuberculosis in experimental mice
… the antimycobacterial activity of medicinal plants used by traditional doctors to treat tuberculosis in South Africa. Furthermore, the toxic effects of these medicinal plants in uninfected mice were determined. A field trip to the Northern Cape, Western Cape, Eastern Cape and Free State …
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Using photonic crystal biosensors for pharmaceutical screening
… cell density induced by the introduction of plant extracts. This image-based biosensor detection approach can effectively identify plant extracts with cytotoxic effects on cancer cells using only 500 cells per test. A library of sixty-one plant extract from Bangladesh is studied. We have also …
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Investigation of cellular mechanisms underlying insulin-releasing or glucose-lowering effects of extracts of selected plants used in traditional medicinal practice for the management of diabetes
… of anti-diabetic effects of selected African plants, Jatropha tanjorensis (J. tanjorensis), Calotropis procera (C. procera) and Pterocarpus mildbraedii (P. mildbraedii), typically consumed as food. Extracts of various parts of the plants were collected in 2019 from Adamawa and Nasarawa States …
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Evaluating preference-seeking and aversive qualities of Salvia divinorumand Mitragyna speciosa
… entails dose response functions of a plant extract, its fractions, and its primary constituent. As a proof of concept, we chose two popular botanicals, one expected to produce place preference (Mitragyna speciosa) and the other expected to produce place aversion (Salvia divinorum). …
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Herbal extract as a functional ingredient in canine health
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-08-01
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Anti-diabetic properties of GUH
… To investigate anti-diabetic properties of the plant extract known as GUH in comparison to commercially available drugs metformin and rosiglitazone. Methods: Male Wistar rats were fed a maintenance diet (MD) with tap water or a high fat diet (HFD) with sucrose solution for a period of twelve …
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Optimization of extraction parameters of selected Malaysian plants towards antiurolithiatic activities (IN-VITRO)
… no scientific data has been recorded on the extraction parameters. Thus, the objective of this study is to assess for the best ethnobotanical plant extract with good antiurolithiatic properties, followed by optimization of extraction parameters of selected plant extracts. The antiurolithiatic …
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Controle alternativo da antracnose em frutos de mamoeiro e qualidade pós-colheita
… and disease management in fruits in most planting. Thus, the study had as objective to evaluate the influence of plant extract Momordica charantia, the resistance inducer Acibenzolar-S-methyl and, chemical fungicide for rot control caused by C. gloesporioides and its influence on …
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Monoclonal Antibody Expression and Novel Purification in Nicotiana benthamiana
… help both patients and drug developers. Plants, such as Nicotiana benthamiana, offer a unique production platform due to their recently found ability to produce large amounts of therapeutic proteins in a quick manner. While production would be simple and cheap, purification would not be …
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Inhibitory effects of Green synthesized Senna alexandrina silver nanoparticles (SAAgNPs) on Escherichia coli DnaK
Plant extracts have garnered considerable interest in the environmentally friendly and economically viable production of silver nanoparticles (AgNPs) through their application in green synthesis. However, Plant-derived nanoparticles may potentially have unique physicochemical characteristics. This …
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Investigation of insulin releasing and glucose lowering effects of extract of selected plants used in African traditional medicinal practice
… underlying biological activities of these plants are poorly understood. This work assessed insulinotropic actions of aqueous and methanolic extracts of selected plants. Plants extraction was carried out using Soxhlet extractor and vacuum evaporator with methanol or water as solvent. …
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Pulse electric field effect on cervical cancer cell: a plant based anti-cancer study
… context, a study was proposed to use of natural plant extract Artocarpus altilis which will be uploaded into cervical cancer cell with the aid of electrical pulses or electroporation technique to investigate on the anti-cancer mechanism. Electroporation parameters utilized in this study ranging …
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Effect of Electrostatic Spraying of Food-Grade Organic and Inorganic Acids, and Grape Seed Extract on Salmonella Typhimurium and Escherichia coli O157:H7 on Spinach and Iceberg Lettuce
… tartaric acids; MA, LA, TA, respectively) and plant extract (grape seed extract, GSE) and (2) Application method - Electrostatic spraying, was examined as a possible solution to the problem of production and post-harvest contamination of leafy greens. Comparisons of electrostatic versus …
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