Browsing Faculty of Applied Sciences by Title
Now showing items 12-31 of 158
-
Antimicrobial activity of plant phenols from Chlorophora excelsa and Virgilia oroboides
(Academic Journalshttp://www.academicjournals.org/AJB/PDF/pdf2013/24Apr/Padayachee%20and%20Odhav.pdf, 2013-04-24)The anti-bacterial and anti-fungal activity of four aqueous plant extracts (1 x 104 µg/ml) of 2,3'4,5'-tetra hydroxy-4'-geranylstilbene (chlorophorin) and 3',4, 5' - trihydroxy - 4' - geranylstilbene (Iroko) from the tree ... -
Antimosquito properties of 2-substituted phenyl/benzylamino-6-(4-chlorophenyl)-5-methoxycarbonyl-4-methyl-3,6-dihydropyrimidin-1-ium chlorides against anopheles arabiensis
(Bentham Science Publishers, 2014)Eight novel dihydropyrimidine analogs named DHPM1-DHPM8 was synthesized in their hydrochloride salt form using one pot synthesis between methyl 2-chloro-4-(4-chlorophenyl)-6-methyl-1,4-dihydropyrimidine-5-carboxylate and ... -
The antimosquito properties of extracts from flowering plants in South Africa
(NCBI, 2013)Extracts of selected flowering plants, which are considered eco-friendly, are used for the treatment of numerous ailments and vector control worldwide. This has resulted in approximately 25 per cent of currently used drugs ... -
Apoptosis in the human laryngeal carcinoma (HEp-2) cell line by Bulbine natalensis and B. Frutescens fractions
(IJBPR, 2012)Many plants that belong to the genus Bulbine have compounds in their roots and leaves which are considered important for traditional treatments. The stems and roots of Bulbine species are believed to contain anticancer ... -
Apparent molar volume and apparent molar isentropic compressibility for the binary systems {methyltrioctylammoniumbis(trifluoromethylsulfonyl)imide + ethyl acetate or ethanol} at different temperatures under atmospheric pressure
(Elsevierhttp://www.sciencedirect.com/science/article/pii/S0040603113002700/pdfft?md5=06cfc7b61968619d406e64cd7e4d3d91&pid=1-s2.0-S0040603113002700-main.pdf, 2013-05-20)The density (d) and speed of sound (u) for the binary systems were measured at 298.15, 303.15, 308.15, and 313.15 K under atmospheric pressure. The binary systems contained the ionic liquid (IL): methyltrioctylammoniumbi ... -
Application of the extended real associated solution theory to excess molar enthalpies and excess molar volumes of binary mixtures of (benzene or 1-alkanol + quinoline)
(Elsevierhttp://dx.doi.org/10.1016/j.molliq.2004.12.002, 2005-06-01)Excess molar enthalpies and excess molar volumes of binary mixtures of (benzene or methanol or ethanol or 1-propanol or 1- butanol+quinoline) as a function of composition at a pressure of 1 atm and a temperature of 298.15 ... -
Application of thermostable a-Amylase from Thermomyces lanuginosus ATCC 58157 to nutritionally enhance starch based food
(2006)In Sub-Saharan Africa there is an urgent need to sustain and improve the quality of its food resources. Poverty eradication features high on the agenda of a number of world health organisations, while the number of underweight ... -
Assessing milk quality using the electronic nose
(2007)There are many ways for milk and dairy products to develop flavour defects. Sensory evaluation, has been the traditional approach to characterize off flavours. The need for odour sensing devices becomes greater when volatile ... -
An assessment of the conformational profile of bombesin and its mammalian analogues using computational chemistry methods
(2011)Understanding the dynamics and mechanism of protein folding continues to be one of the central problems in molecular biology. Peptide folding experiments characterize the dynamics and molecular mechanisms of the early ... -
Azide-alkyne cycloaddition en route to 1H-1,2,3-triazole-tethered 7-chloroquinoline-isatin chimeras: Synthesis and antimalarial evaluation
(Elsevierhttp://www.sciencedirect.com/science/article/pii/S0223523413000603/pdfft?md5=981f7a91cb361319d6a41ded99e81abd&pid=1-s2.0-S0223523413000603-main.pdf, 2013-04)We describe the synthesis and antimalarial activities of 1H-1,2,3-triazole tethered 7-chloroquinoline-isatin hybrids. Activity against cultured parasites was dependent on the C-5 substituent of the isatin ring as well as ... -
Bioactivity of famine food plants from the family: Amaranthaceae
(2009)Information regarding the nutritional value of wild food plants in Africa and current information varies from source to source. Prior to commercialization of wild foods the nutritional, ethnobotanical, medical, chemical, ... -
Biocontrol of Listeria monocytogenes ATCC 7644 in fresh tomato with Probiotics
(MN Khan, 2014-10)The effectiveness of probiotics Lactobacillus bulgarius and Streptococcus salivarius as biocontrol agents against Listeria monocytogenes ATCC 7644 in fresh tomato throughout storage and their effect on the physicochemical ... -
Bioconversion of biodiesel-derived crude glycerol waste to 1,3 propanediol and gellan using adapted bacterial isolates
(2013-09-19)The continual growth of the global biodiesel industry has resulted in a proportional increase in crude glycerol production. The by-production of glycerol waste during the manufacture of biodiesel has, with recent ... -
Biodegradation of glycerol using bacterial isolates from soil under aerobic conditions
(Taylor and Francishttp://dx.doi.org/10.1080/10934529.2013.824733, 2014)Glycerol, a non-biodegradable by-product during biodiesel production is a major concern to the emerging biodiesel industry. Many microbes in natural environments have the ability to utilize glycerol as a sole carbon and ... -
Bioproduction of riboflavin by fungi using spent industrial oils
(2011)Riboflavin (vitamin B2), an essential water-soluble vitamin is commercially produced because it cannot be synthesized by vertebrates. Although this vitamin is produced chemically, bioproduction is a better option since it ... -
Biosynthesis and antibacterial activity of silver and gold nanoparticles from the leaf and callus extracts of Amaranthus dubius, Gunnera perpensa, Ceratotheca triloba and Catharanthus roseus
(2013-09-17)The biosynthesis of NPs has many advantages over the tedious, expensive and toxic physical and chemical methods of synthesis. Plants are stocked with valuable metabolites that are capable of reducing metal salts to form ... -
A Box-Behnken Design and Response Surface Approach for the Simultaneous Determination of Chromium (III) and (VI) Using Catalytic Differential Pulse Polarography
(ESGhttp://www.electrochemsci.org/papers/vol9/91206751.pdf, 2004-09-29)The present paper describes an optimized Box-Behnken design using a catalytic-differential pulse polarograhic technique for the simultaneous determination of chromium (III) and (VI) in wastewater samples using ammonium ... -
Characterisation of biodiesel from Litsea glutinosa
(2014-08-08)Global warming is a major concern to the world’s population. It is caused by greenhouse gases that result from the burning of fossil fuel. The fossil fuel reserves are rapidly depleting as the needs and wants of man in ... -
Characterisation of the microbial communities present in an anaerobic baffled reactor utilising molecular techniques
(2005)The provision of safe and sanitary water is a constitutional right and above all, a necessity of life. As a result of the rapid urbanisation and the past policies of apartheid, a large population of South Africa dwell in ... -
Chemical composition of essential oil of Psidium cattleianum var. lucidum (Myrtaceae)
(Academic Journalshttp://www.academicjournals.org/AJB, 2012-04-12)The aim of this study was to investigate the essential oil composition of Psidium cattleianum var. lucidum from South Africa. The essential oils were extracted by hydrodistillation and the components were identified by gas ...