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 28 for “"phytochemistry"”.
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MORPHOLOGY AND PHYTOCHEMISTRY OF DATURA INOXIA MILL.
MORPHOLOGY AND PHYTOCHEMISTRY OF DATURA INOXIA MILL.
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Phytochemistry in the development of pesticides and biocides
To date biopesticides and biocides are studied as substitutes for their toxic synthetic ancestors. The botanical pesticides are evaluated as tools intended for integrated crop protection schemes, while the natural biocides for their potential use in residential areas. In this study we evaluate …
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Phytochemistry and biological studies of constituents from Breonadia Salicina (VAHL) Hepper and J. R. I. Wood
… leaves. However, few studies have correlated the phytochemistry to the physiological activties. This study aimed to explore the phytochemistry of B. salicina using a metabolomic approach and correlating the phytochemistry to the biological activities for possible drug development. Samples of B. …
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Ecological Perspectives on Cannabis sativa Phytochemistry: Biotic Interactions and Abiotic Stress in Managed and Natural Systems
… little is known about how variation in phytochemistry influences arthropod interactions, or how these interactions differ across environmental conditions and cultivation systems. This dissertation takes an ecological lens to Cannabis phytochemistry, combining observational surveys, …
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The Phytochemistry of Selected Ancistrocladus and Monsonia Species and their Anti-Pancreatic Cancer and Nrf2 Activator Properties
Fifteen naphthylisoquinoline (NIQ) alkaloids including four new compounds, the 5,8'-coupled ancistroyafungines A-C, and the 5,1'-linked ancistroyafungine D, as well as eleven known NIQs were isolated from the stem bark of an unidentified Ancistrocladus (Ancistrocladaceae) liana recently discovered …
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Cyclopentenoid Cyanogens: Their Chemistry, Importance in Plant Systematics, and Their Role in the Coevolution of Plants and Insects (Phytochemistry, Cyanogenic, Glycosides, Nmr)
Cyanogenic glycosides containing a cyclopentene ring were investigated chemically. Techniques for their isolation from plant sources were devised, and data accumulated on their spectroscopic properties. The distribution of cyclopentenoid cyanogens in plants was investigated, and it was determined …
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Investigation of the phytochemistry and biological activity of isoquinoline alkaloids isolated from the South African medicinal plants, cyrtanthus sanguineus (Lindl.) walp. and cyrtanthus obliquus (L.f.)ait
The term "traditional medicine" refers to the ways of protecting and restoring health that existed before the arrival of modern medicine. These approaches to health belong to the traditions of each country and have been handed down from generatio to generation.
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A revision of Otholobium C.H. Stirton (Papilionoideae, Leguminosae)
… and Amorpheae. Considerable new data from phytochemistry, palynology, morphology and leaflet anatomy confirmed that they were distinct and not closely related as had been widely assumed: new characters included cotyledon type, arrangement of the embryo and radicle in the seed, seed shape, …
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A Phytochemical Analysis of Secondary Metabolites in Eupatorium Serotinum
<p>Phytochemistry, a subset of Natural Products Chemistry, studies chemically derived products from natural substances. Advances in this field have important applications in medicinal research due to the distinctive and unique properties of natural compounds. All metabolites are produced from the …
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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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Genetic and environmental drivers of fruit composition in relation to sensory quality in blueberry (Vaccinium corymbosum)
… UK consumers and the relationship between fruit phytochemistry and sensory profiles in order to provide underlying tools to assist in breeding of an elite UK adapted germplasm. Sensory tests were conducted on a range of currently grown cultivars. Free-choice profiling identified the range of …
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Medicinal Chemistry of Cannabis and Cannabinoids
… plant material were investigated and the diverse phytochemistry of cannabis was revealed through extensive chemical profiling, reiterating the need for standardization and consistency in therapeutic-grade cannabis extracts. Meanwhile, receptor profiling at CB1 and CB2 receptors confirmed the …
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Phytochemical diversity and genetics of purple corn
… reported in maize. Further analysis of AR phytochemistry identified abundant apigenin-derived flavones that were found to copigment with anthocyanins, resulting in darker and bluer extracts and improved anthocyanin stability in a model beverage. Given the unique phytochemical diversity …
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Exploring Chemically Mediated Interactions Between Spotted Lanternfly, Lycorma delicatula, and Its Host Plants in the Mid-Atlantic Region of the United States
… I reviews invasion biology, crop risk, and host phytochemistry-based hypotheses. Chapter II evaluates plant-derived semiochemicals as repellents: vineyard assays showed lavender essential oil repelled adults in early fall, with efficacy contingent on temperature, dose, and vine phenology. Chapter …
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Phytochemical studies on natural products and their biological activities against Trypanosoma
… linalool, limatrol, and caryophyllene. The phytochemistry of this plant is studied in the first section of this thesis.;Propolis is also receiving ample attention in the context of initiatives to discover novel drugs, thanks to its biological and pharmacological qualities. A resinous …
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Impacts of climate change on herbivore induced plant signaling and defenses
… of CO2 and O3 in the troposphere alters phytochemistry which in turn influences the interactions between plants and insects. To examine the effect of elevated atmospheric CO2 and O3 concentrations on plant-insect interaction, I measured changes in transcription using microarray analysis …
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Comparative chemical ecology of invasive Depressaria species (Lepidoptera: Depressariidae) varying in hostplant specificity
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01
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Discovery of Novel Neurologically Active Phytochemicals in Neotropical Piperaceae: An Ethnopharmacological Approach
The goal of this thesis was to understand and quantify to what extent plants are used for the treatment of mental and folk illnesses such as susto and mal aire in the Neotropics and to investigate the anxiolytic and antiepileptic potential of previously unstudied Neotropical members of the genera …
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Phytochemical studies of Helichrysum patulum
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 …
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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>)
<p>The first chapter discusses the significance of natural products, safety challenges, and quality issues concisely. Specifically, the impact of herb-drug interaction on consumers and the quest for chemical markers for chemical fingerprinting development are provided. Rooibos tea (<em>Aspalathus …
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