Browsing Faculty of Natural Science by Title
Now showing items 1462-1481 of 2597
-
Involvement of abscisic acid and H2O2 in antioxidant enzyme activities mediated by nitric oxide synthase-like activity in maize
(University of the Western Cape, 2018)In recent years, nitric oxide (NO) has emerged as an important endogenous plant signalling molecule that mediates many developmental and physiological processes. NO regulates the activity of antioxidant enzymes in response ... -
Ion exchange resins an functional fibres: a comparative study for the treatment of brine waste water
(University of the Western Cape, 2009)To improve the adsorption capacity of polyacrylonitrile (PAN) fibres, hydrophilic amidoxime fibres were prepared by subsequent conversion of the cyano groups to an amidoxime group by reacting with hydroxylamine at 80°C at ... -
Ion genaration, deflection and deposition in vacuum
(University of the Western Cape, 2010)In the PBMR it is known that at high temperatures (above 1250 'C) silver-110m is known to have been released from the TRISO particles and taken up by the helium coolant stream. The released silver-ll0m travels with the ... -
Ion track modification of polyimide film for development of palladium composite membrane for hydrogen separation and purification
(University of the Western Cape, 2011)South Africa s coal and platinum mineral resources are crucial resources towards creating an alternative and environmentally sustainable energy system. The beneficiation of these natural resources can help to enhance a ... -
Ionophoric and aptameric recognition-modulated electroactive polyaniline films for the determination of tetrodotoxin
(University of the Western Cape, 2014)Tetrodotoxin (TTX) is a nonpeptidic neurotoxin with a high rate of food poisoning mortality (60%) that has been associated with the consumption of diets from puffer fish and mud snails harbouring TTX-producing bacteria. ... -
Iridium based mixed oxides as efficient anode catalysts for Solid Polymer Electrolyte (SPE) electrolysers
(2010)The objective of the thesis is to develop highly efficient catalysts for solid polymer electrolyte (SPE) electrolyser anodes.The anode is the primary cause of the large overpotential of SPE electrolysers and also adds ... -
Irradiation induced effects on 6h-SIC
(University of the Western Cape, 2012)The framework agreement in the year 2000 by the international community to launch Generation IV program with 10 nations, to develop safe and reliable nuclear reactors gave rise to the increased interest in the studies of ... -
Is paracetamol being prescribed and used at the correct therapeutic dose in the children population in South Africa?
(University of the Western Cape, 2014)When used at the recommended and approved therapeutic dose, paracetamol is effective. Paracetamol is available in various forms and easily accessible from general dealers and pharmacies. The liquid form is the preferred ... -
Isolation and Bioassay evaluation of Angiotensin Converting Enzyme inhibitory compounds of Centella asiatica
(University of the Western Cape, 2019)Hypertension is by far the most common risk factor for cardiovascular disease (CVD), which has been identified as the leading cause of death worldwide and a major economic burden in developing countries. Over the years, ... -
The isolation and characterisation of a novel siderophore from the marine bacterium Thalassomonas viridans
(University of the Western Cape, 2022)Natural products (NPs) produced by bacteria, fungi, plants, and marine animals include a large group of diverse chemical entities that display a broad range of biological activities. NPs are widely used for various ... -
Isolation and characterisation of a xylanase producing isolate from straw-based compost
(University of the Western Cape, 2012)Lignocellulosic biomass, a waste component of the agricultural industry, is a promising source for use in bioethanol production. Due to a complex structure, the synergistic action of lignocellulosic enzymes is required to ... -
Isolation and characterisation of esterases from thermophilic Actinomyces
(University of the Western Cape, 2010)Alternative sources of fuel are required worldwide, and bio-ethanol is the leading candidate. Lignocellulosic biomass, a waste component of the agricultural industry, is a promising renewable source. Due to its complex ... -
Isolation and characterisation of leaf endophytic bacteria from weed plants for enhancing salinity stress tolerance in Brassica napus
(University of the Western Cape, 2020)In an ever changing environment, plants are constantly challenged by various abiotic stresses such as salinity, which limits global crop production. This directly affects food availability for the global population, which ... -
The isolation and characterisation of novel natural products from marine bacterial symbionts
(University of the Western Cape, 2015)Drug-resistant infections are a global health crisis and drastically hinder the treatment options to effectively combat disease. Today, natural products remain an important source of novel drug candidates. Micro-organisms, ... -
ISOLATION AND CHARACTERIZATION OF ANTIMICROBIAL COMPOUNDS FROM GALENIA AFRICANA
(University of the Western Cape, 2001)Galenia africona, commonly known as "kraalbos" or "geelbos" belonging to the family Aizoaceae, is a dominant plant throughout the Namaqualand area. It is an active invader and is especially abundant in disturbed areas ... -
Isolation and characterization of bacterial endophytes for growth promotion of Phaseolus vulgaris under salinity stress
(University of the Western Cape, 2020)As the global human population grows, so does the demand for faster food production rates. Owing to this, agricultural practices have had to expand and move into semi-arid and arid regions, too, where frequent irrigation ... -
Isolation and characterization of natural products from selected Rhus species
(University of Western Cape, 2020)Searsia is the more recent name for the genus (Rhus) that contains over 250 individual species of flowering plants in the family Anacardiaceae. Research conducted on Searsia extracts to date indicates a promising potential ... -
Isolation and Characterization of Natural Products from Siphonochilus aethiopicus
(University of the Western Cape, 2009)Plants have formed the basis of traditional medicinal systems that have been in existence for thousands of years. Traditional medicines play an important role in protecting, maintaining and restoring the health of people. ... -
Isolation and characterization of plant growth promoting endophytic bacteria from Eriocephalus africanus roots]
(University of the Western Cape, 2018)Endophytic bacteria are known to have an endosymbiotic relationship with plants and provide them with many beneficial properties. These bacteria stimulate plant hormones, provide protection from pathogens and increase ... -
Isolation and characterization of plant growth promoting endophytic bacteria from Medicago lupulina for enhanced drought tolerance in Maize
(University of the Western Cape, 2019)Maize is one of the major staple foods in many African nations however, this crop is sensitive to environmental stressors. Drought is a major environmental stressor affecting maize production. Due to global warming, drought ...