Subject
Now showing items 1-20 of 66
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The ability of antimicrobial peptides to migrate across the gastrointestinal epithelial and vascular endothelial barriers
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Antibiotic resistance has become a major threat to humankind, necessitating research and development of alternative antimicrobial compounds. Many bacteria, including lactic acid bacteria, produce small ... -
The application of astaxanthin producing bacteria in poultry feed
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: In the food industry, the colour of the product is important to the consumer as it gives an indication of the freshness and quality of the product. Hens are not able to produce pigments and absorb pigments ... -
Application of solar pasteurization for the treatment of harvested rainwater
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Rainwater harvesting has been earmarked by South African governmental authorities as an intervention strategy that could alleviate the pressures on existing centralised water distribution systems, especially ... -
Binary interactions between bacteria and Candida albicans
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: The primary habitat of the ascomycetous yeast Candida albicans is thought to be the mammalian gastrointestinal (GI) tract. This opportunistic pathogen however, was also found to be capable of sustainable ... -
The biology, diversity and evolution of the broad host-range, promiscuous INCQ plasmids, with an emphasis on the INCQ2 sub-family
(Stellenbosch : Stellenbosch University, 2014-12)ENGLISH ABSTRACT: Plasmids belonging to the IncQ family have an exceptionally broad host-range and are highly mobilizable in the presence of the self-transmissible IncP plasmids. All IncQ plasmids identified to date have ... -
Bioprospecting for novel biosurfactants and biosurfactant producing bacteria in wastewater
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Biosurfactants are surface active amphiphilic compounds, synthesised by numerous bacteria, fungi and yeast. They are known to exhibit broad spectrum antimicrobial activity and are currently applied as ... -
Characterisation of wine yeasts for varietal red wine production by using chemical, sensory and metabolomic tools
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Modern day wine making includes direct inoculation of active dried yeast (ADY), primarily Saccharomyces cerevisiae, into relatively ‘neutral’ flavoured grape must. Subsequently, wine yeast strains influence ... -
Characterization of a novel antibiotic isolated from Xenorhabdus khoisanae and encapsulation of vancomycin in nanoparticles
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Periprosthetic joint infection (PJI) is the major cause of total joint arthroplasty failures and is often caused by methicillin-resistant Staphylococcus aureus (MRSA). The ability of these bacteria to ... -
Characterization of novel Xenorhabdus-Steinernema associations and identification of novel antimicrobial compounds produced by Xenorhabdus khoisanae
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Xenorhabdus bacteria are closely associated with Steinernema nematodes. This is a species-specific association. Therefore, a specific Steinernema species is associated with a specific Xenorhabdus species. ... -
Cloning and expression of fungal alpha-amylase genes in Saccharomyces cerevisiae with integrated glucoamylase gene for raw starch conversion into bioethanol
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Increasing population numbers and the rapid growth of technology and industry have resulted in an increase in energy demand. Biomass-based fuels (biofuels) have received considerable interest as an ... -
Comparative study for the transformation of emerging contaminants and endocrine disrupting compounds : electrochemical oxidation and biological metabolism
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: As little as 1% of all water sources is fresh water accessible for use and it is increasingly be polluted by anthropogenic materials such as solid and chemical waste. Previous studies have shown that ... -
Covalent immobilisation of β-Galactosidase from Escherichia coli to commercially available magnetic nanoparticles for the removal of lactose from milk
(Stellenbosch : Stellenbosch University, 2012-12)ENGLISH ABSTRACT: ß-Galactosidase of Escherichia coli is the equivalent of lactase in humans and has the ability to bind and hydrolyse lactose. Lactase de ciency is a common phenomenon present in almost 70% of the world's ... -
Crossbreeding of natural Saccharomyces cerevisiae strains for enhanced bio-ethanol production
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: The fluctuating fuel prices, possible future shortage of fossil fuels, the increasing demand and the negative impacts on the ecosystem have all contributed to the search and development of alternatives ... -
Detection, identification and quantitation of Cryptosporidium parvum in water samples and Ascaris lumbricoides in sludge samples using real-time Polymerase Chain Reaction coupled with the high-resolution melt curve assay
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The intestinal parasites Ascaris lumbricoides and Cryptosporidium parvum are highly resistant to traditional water treatment processes and adverse health effects in individuals that come into contact with ... -
Determination of the bacterial diversity of a natural freshwater wetland impacted by acid mine drainage.
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: Freshwater resources in semi-arid countries, such as South Africa, are under constant threat from pollution. One of the major pollutants is acid mine drainage, which not only lowers the pH of the water, ... -
The development of recombinant fungal enzyme cocktails for the hydrolysis of cellulosic waste products
(Stellenbosch : Stellenbosch University, 2014-12)ENGLISH ABSTRACT: Biofuels, such as bioethanol, provide an alternative, environmentally friendly transportation fuel. Renewable energy sources, such as lignocellulosic material, are therefore being explored for the production ... -
The diversity of Trichoderma spp. in South Africa
(Stellenbosch : Stellenbosch University, 2015-03)ENGLISH SUMMARY: The genus Trichoderma includes economically important species that are routinely applied in fields such as agriculture and biotechnology. Species like T. harzianum and T. asperellum are commercially applied ... -
The effect of conventional herbicides, used for the control of alien vegetation on microbial communities within freshwater biofilms
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: Freshwater streams in South Africa are heavily permeated with invasive plant species. These invasive plant species pose a major threat to native vegetations by competing for available ecosystem resources. ... -
The effect of dissolved oxygen on the development of manganese oxidizing - and reducing biofilms in the lower blyde irrigation system
(Stellenbosch : Stellenbosch University, 2018-12-11)ENGLISH ABSTRACT: The Blyderiver dam in Mpumalanga is an important source of water for the irrigation of a variety of produce on farms in Limpopo and Mpumalanga. Water from this dam is used for gravity fed irrigation to ... -
The effect of fire scars on microbial diversity of fynbos soil
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH ABSTRACT: Microbial communities (bacteria, archaea, fungi, protista and viruses) are essential for the maintenance of a healthy balance in soil ecosystems. There are many factors that influence and disrupt this ...
