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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 94 for “"POLYPHENOLIC"”.
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The vasodilatory and antioxidant activities of polyphenolic substances
This project was designed to determine the effect of a wide range of grape and tea based extracts and green tea catechins on vascular tension in vitro, further determine the relationship between their vasodilatory and antioxidant activities and identify the major polyphenols present in green and …
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Antioxidant activity, protective effects and absorption of polyphenolic compounds
The objectives of the studies presented in this thesis were to identify and quantify the major phenolic components of red wine and to assess the contribution of individual compounds to the total antioxidant activity. Red wines were analysed for their phenolic content and antioxidant activity using …
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Role of Polyphenolic Compounds in Chemoprevention of Breast Cancer Stem Cells
… and invasion. We postulate that PEBP or its polyphenolic components induce specific epigenetic changes by modulating miRNA networks, reducing CSCs, and preventing breast carcinoma. Thus, the overarching aim of this thesis is to better understand the mechanisms underlying the protective …
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Study of interaction between polyphenolic compounds and protein using computational and capillary electrophoresis techniques
Submitted in fulfilment of the requirements of the Degree of Master of Technology: Chemistry, Durban University of Technology, Durban, South Africa, 2012.
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Electrodeposition of Copper on Ruthenium Oxides and Bimetallic Corrosion of Copper/Ruthenium in Polyphenolic Antioxidants
Copper (Cu) electrodeposition on ruthenium (Ru) oxides was studied due to important implications in semiconductor industry. Ruthenium, proposed as the copper diffusion barrier/liner material, has higher oxygen affinity to form different oxides. Three different oxides (the native oxide, reversible …
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Postprandial Effects of Pecans Ingestion on Plasma Level of Nutrients, Polyphenolic Compounds and Biomarkers of Antioxidant Status in Human Volunteers
… illinoinensis</em>) are rich sources of polyphenolic compounds and nutrients, which have antioxidant capacity results in favorable reductions in plasma lipids and lipoproteins. However, the health benefits of pecans may not be limited to blood lipid changes. There has been very little …
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Dry milling characteristics and polyphenolic contents of adapted colored corn varieties and polyphenol extraction by combining deep eutectic solvents and ultrasound
… in case of colored corn varieties, most of the polyphenolic compounds such as anthocyanins, flavonoids, flavanols, tannins and phenolic acids are concentrated in corn pericarp which can be separated and selectively processed for their economic recovery. The corn endosperm, containing most of the …
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Physiological, biochemical and molecular aspects of induced resistance in maize against Bipolaris maydis infection using a zinc-polyphenolic compound and silicon
Maize leaf blight (MLB), caused by the fungus Bipolaris maydis, has great potential to cause considerable losses in the growth and yield of maize. Higher foliar concentration of silicon (Si) or the use of resistance inducers may be promising alternatives for boosting maize resistance against MLB. …
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Nutraceutical antioxidant potential and polyphenolic profiles of the Zambian market classes of bambara groundnuts (Vigna subterranea L. Verdc) and common beans (Phaseolus vulgaris L.)
There is a growing interest in legumes and legume based foods because of the health claims associated with their consumption. The aim of the current study was to explore the nutraceutical potential of bambara groundnuts (Vigna subterranea L. Verdc) and common beans (Phaseolus vulgaris L.) commonly …
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Investigation of the antioxidant activity of phenolic compounds in cell culture systems
This study focuses on newly synthesized polyphenolic compounds which were expected to be antioxidants in vivo. Antioxidants are compounds which at low concentrations can prevent or reduce the deleterious effects caused by reactive oxygen species (ROS) induced by UVA exposure of the skin. This study …
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Quantifying Greenhouse Gas Emissions and Ammonia Volatilization from Soil Amended with Excreta from Ruminants Fed Alternative Forage-based Diets
… diets supplemented with condensed tannins or polyphenolic-containing legumes may alter nitrogen (N) metabolism in the animal and reduce gas emissions from soil receiving excreta. The objective of the study was to determine if soil receiving urine or manure from sheep fed forage diets …
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Engineering of polyphenol metabolism in tomatoes to enhance anti-cancer activities
Anthocyanins are polyphenolic plant pigments that are responsible for much of the attractive colour displays found in many flowers, fruit and vegetables. Anthocyanins are divided into different classes based on the number of hydroxyl groups on their phenyl B-ring and subsequent side chain …
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The Effect of Health Information on the Acceptability of a Functional Beverage with Fresh Turmeric
… Antioxidant capacity (ferrous equivalents) and polyphenolic content were evaluated in a fruit-based beverage containing 0g, 7g, 14g, and 22g of fresh turmeric. Sixty-one individuals were recruited to participate in a sensory evaluation of two fruit-based beverages with and without fresh …
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Cerebrovascular and Neuronal Cellular Consequences of Amyloid-β Induced Nuclear Factor-κB Activation
… neuronal cells. Flavonoids are the most abundant polyphenolic compounds found in the human diet, and the structure of polyphenolic compounds enables them to effectively inhibit Aβ aggregation. By taking advantage of differences in diets between cultures, epidemiological studies have established a …
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Determination of the in vitro antidiabetic potential of a polyherbal commercial tea
… The aim of this study was to assess the polyphenolic content, antioxidant capacity, as well as in vitro toxicity and hypoglycaemic activity of a commercial ‘antidiabetic’ tea mixture (Diabetea) and its individual constituents: Achillea millefolium L. (Yarrow), Agathosma betulina Bartl. & …
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Potential for selection of new peanut genotypes with enhanced polyphenol antioxidant content
… indicating the importance of matrix-bound polyphenolic compounds and corresponded to respective ORAC assay values. The shotgun proteomics revealed differential protein abundance in the high antioxidant expressing RIL in carbohydrate and protein metabolism, stilbene and flavonoid …
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ΜΕΛΕΤΗ ΤΩΝ ΧΗΜΙΚΩΝ ΣΥΣΤΑΤΙΚΩΝ ΤΟΥ ΦΥΤΟΥ GALIUM MELANANTHERUM BOISS
… 4,4'-DIMETHYLSTEROLS. IN THE METHANOL EXTRACT POLYPHENOLIC COMPOUNDS WERE EXTRACTED ACCORDING TO THE CHAVAUX- PARIS PROCEDURE. THE FOLLOWING COMPOUNDS HAVE BEEN ISOLATED AND IDENTIFIED: APIGENIN, KAEMPFEROL, QUERCETIN., LUTEOLIN, CAFFEIC ACID, SCOPOLETIN, VITEXIN LUTEOLIN-7-0-B-GENTIOBIOSIDE, …
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