Browsing Research Articles (Microbiology) by Title
Now showing items 33-52 of 100
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Economic risks due to declining water quality in the Breede River catchment
(South African Water Research Commission, 2018-07-03)Water is a critical resource necessary to support social and economic development. Economic growth and, in particular, the growth of urban and peri-urban areas, however results in declining water quality which threatens ... -
Effect of carbon on whole-biofilm metabolic response to high doses of streptomycin
(Frontiers Media, 2015)Biofilms typically exist as complex communities comprising multiple species with the ability to adapt to a variety of harsh conditions. In clinical settings, antibiotic treatments based on planktonic susceptibility tests ... -
Effect of rooibos and honeybush tea extracts against Botrytis cinerea
(SASEV, 2008-02)Green tea extracts from the indigenous South African rooibos (Aspalathus linearis) and honeybush (Cyclopia species) plants were evaluated as potential antifungal agents against the plant pathogen Botrytis cinerea. When ... -
Emergomyces africanus in soil, South Africa
(Centers for Disease Control and Prevention, 2018-02)We detected Emergomyces africanus, a thermally dimorphic fungus that causes an HIV-associated systemic mycosis, by PCR in 18 (30%) of 60 soil samples from a wide range of habitats in South Africa. Direct and indirect culture ... -
Engineering cellulolytic ability into bioprocessing organisms
(Springer-Verlag, 2010-03)Lignocellulosic biomass is an abundant renewable feedstock for sustainable production of commodities such as biofuels. The main technological barrier that prevents widespread utilization of this resource for production of ... -
Engineering of a novel cellulose-adherent cellulolytic Saccharomyces cerevisiae for cellulosic biofuel production
(Springer Nature, 2016)Cellulosic biofuel is the subject of increasing attention. The main obstacle toward its economic feasibility is the recalcitrance of lignocellulose requiring large amount of enzyme to break. Several engineered yeast strains ... -
The enterotube system in the identification of Enterobacteriaceae and Yersinia
(Health & Medical Publishing Group, 1974)A trial of the Enterotube system for the identification of Enterobacteriaceae and a comparison with the methods at present in use in the Tygerberg Hospital Laboratory, were carried out. One hundred cultures belonging to ... -
Enzyme-coupled assay of acetylxylan esterases on monoacetylated 4-nitrophenyl beta-D-xylopyranoside
(Elsevier, 2004-03)Three different monoacetates of 4-nitrophenyl beta-D-xylopyranoside were tested as substrates for beta -xylosidase and for microbial carbohydrate esterases and a series of non-hemicellulolytic esterases. The acetyl group ... -
Escherichia coli serotypes associated with urinary tract infections in the Western Cape
(Health & Medical Publishing Group, 1974)Examination of 3,261 specimens of urine from patients with urinary tract infections led to the isolation of E. coli types from 933 samples (28.6%). Serological typing revealed 222 isolates (23.8%) as urinary or as ... -
Evaluating sulphate removal and identifying the bacterial community present in acid mine drainage treated with synthetic domestic wastewater sludge
(South African Water Research Commission, 2016-07)Domestic wastewater sludge can serve as a carbon source in the passive biotic treatment of acid mine drainage (AMD) in microbial bioreactors to create anaerobic conditions for the removal of sulphate, chemical oxygen demand ... -
Evaluation of a nisin-eluting nanofiber scaffold to treat Staphylococcus aureus-induced skin infections in mice
(American Society for Microbiology, 2013-08)Staphylococcus aureus is a virulent pathogen and a major causative agent of superficial and invasive skin and soft tissue infections (SSSTIs). Antibiotic resistance in S. aureus, among other bacterial pathogens, has rapidly ... -
Evidence that the spread of Mycobacterium tuberculosis strains with the Beijing genotype is human population dependent
(American Society for Microbiology, 2007-07)This study describes a comparative analysis of the Beijing mycobacterial interspersed repetitive unit types of Mycobacterium tuberculosis isolates from Cape Town, South Africa, and East Asia. The results show a significant ... -
Expression of a Trichoderma reesei beta-xylanase gene (XYN2) in Saccharomyces cerevisiae
(American Society for Microbiology, 1995-04)The XYN2 gene encoding the main Trichoderma reesei QM 6a endo-beta-1,4-xylanase was amplified by PCR from first-strand cDNA synthesized on mRNA isolated from the fungus. The nucleotide sequence of the cDNA fragment was ... -
The formulation of synthetic domestic wastewater sludge medium to study anaerobic biological treatment of acid mine drainage in the laboratory
(South African Water Research Commission, 2016-04)Requirements for successful biological treatment of acid mine drainage (AMD) rely on the reduction of sulphates by microorganisms using a suitable organic carbon source. Various carbon sources, such as domestic wastewater ... -
Fruit waste streams in South Africa and their potential role in developing a bio-economy
(Academy of Science of South Africa, 2015)Current and previous studies on bio-based (fruit) wastes and wastewaters, with a particular emphasis on research in South Africa, were reviewed. Previous studies have focused predominantly on the beneficiation and ... -
Functional expression of cellobiohydrolases in Saccharomyces cerevisiae towards one-step conversion of cellulose to ethanol
(Elsevier, 2006-09)To investigate the possible use of Saccharomyces cerevisiae as a candidate for consolidated bioprocessing (CBP) of cellulose to ethanol, four fungal cellobiohydrolase (CBH) encoding genes (Trichoderma reesei cbh1 and cbh2, ... -
Fungi associated with the skin of a southern right whale (Eubalaena australis) from South Africa
(Taylor & Francis group, 2010-09)Cutaneous fungi are known to affect parts of the outermost skin layers of mammals, including the epidermis, stratum spinosum and stratum corneum, as well as mucocutaneous membranes, genitalia or external ears. Relatively ... -
Gedeeltelike beskrywing van bakteriee in die SVK van Haliotis midae, met die fokus op potensiele probiotika
(LitNet, 2015-08)Perlemoenboerdery is een van Suid-Afrika se belangrikste akwakultuurbedrywe. Van die grootste probleme in hierdie bedryf is die stadige groeitempo van die perlemoen en ekonomiese verliese as gevolg van siektes. Daar word ... -
Glycerol in South African table wines : an assessment of its relationship to wine quality
(South African Society for Enology and Viticulture, 2002)Glycerol is an important by-product of glycolysis and is quantitatively one of the major components of wine. While the physicochemical and sensory characteristics of pure glycerol are well established, the impact of varying ... -
Glycerol production by the yeast saccharomyces cerevisiae and its relevance to wine : a review
(South African Society for Enology and Viticulture, 1998)Glycerol is a sugar alcohol produced as a by-product of the ethanol fermentation process by Saccharomyces cerevisiae. In wines, levels between 1 and 15 gll are frequently encountered and the higher levels are thought to ...
