Browsing Department of Microbiology by Title
Now showing items 147-166 of 317
-
The fate of genetically modified yeast in the environment
(Stellenbosch : Stellenbosch University, 2005-03)ENGLISH ABSTRACT: Considerable efforts have been made to improve strains of the wine yeast Saccharomyces cerevisiae through the use of genetic engineering. Although the process is well defined, globally there is much ... -
Fermentation optimization of pediocin PD-1 production and a comparative study of the effect of pediocin PD-1, plantaricin 423 and nisin on biofilms of Oenococcus oeni
(Stellenbosch : Stellenbosch University, 2001-12)ENGLISH ABSTRACT: Lactic acid bacteria are present in many foods and beverages and are used as starter cultures in the production of a variety of fermented products. Many of these bacteria produce ribosomally synthesized ... -
Fluorescence and bioluminescence imaging of the intestinal colonization of Enterococcus mundtii ST4SA and Lactobacillus plantarum 423 in mice infected with Listeria monocytogenes EGde
(Stellenbosch : Stellenbosch University, 2015-04)ENGLISH ABSTRACT: Lactic acid bacteria (LAB) are common inhabitants of the human gastro-intestinal tract (GIT). Some LAB, especially lactobacilli, are well known for their application in fermented foods and probiotic ... -
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, ... -
Fungal enzymes and microbial systems for industrial processing
(Stellenbosch : Stellenbosch University, 2008-03)ENGLISH ABSTRACT: This study strives to improve two current industrial processes by making them more cost effective through the use of hydrolytic enzymes or microbial systems. The first process targeted is the industrial ... -
Fungal enzymes as animal feed additives
(Stellenbosch : Stellenbosch University, 2001-03)ENGLISH ABSTRACT: The use of fungal enzymes as ruminant feed digestibility enhancers was investigated. Currently, ruminants may not digest 38 to 80 % of fibrous forages' content. A renewed interest in the potential of ... -
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 ... -
Gastrointestinal persistence of the probiotic bacteria Lactobacillus plantarum 423 and Enterococcus mundtii ST4SA, and their anti-listerial activity
(Stellenbosch : Stellenbosch University, 2018-12)ENGLISH ABSTRACT: Gastrointestinal diseases, and in particular those caused by bacterial infections, are a major cause of morbidity and mortality worldwide. Treatment is becoming increasingly difficult due to the increase ... -
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 ... -
Genetic analysis of a signal transduction pathway : the regulation of invasive growth and starch degradation in Saccharomyces cerevisiae
(Stellenbosch : Stellenbosch University, 2004-03)ENGLISH ABSTRACT: Cells of the yeast Saccharomyces cerevisiae are able to change their morphological appearance in response to a variety of extracellular and intracellular signals. The processes involved in morphogenesis ... -
Genetic and enzymatic characterisation of wood degrading strains of Phanerochaete species
(Stellenbosch : Stellenbosch University, 2000-03)ENGLISH ABSTRACT: White rot fungi are of interest in the paper and pulp industry because of their removal of lignin from wood. In this study over 600 Basidiomycete fungi were isolated from indigenous forests as well as ... -
Genetic characterisation and breeding of wine yeasts
(Stellenbosch : Stellenbosch University, 1990)ENGLISH ABSTRACT: To remain competitive in the market place, the South African wine industry will have to direct well-planned yeast strain-development programmes. However, the winemaker can only benefit from the extensive ... -
Genetic engineering and evaluation of Aspergillus niger for heterologous polysaccharase production
(Stellenbosch : Stellenbosch University, 2003-03)ENGLISH ABSTRACT: Cellulose and hemicellulose represents the two most abundant groups of renewable polysaccharides known to man. Apart from their presence in plant material, they also contribute to a significant portion ... -
Genetic engineering of Saccharomyces cerevisiae for efficient polysaccharide utilisation
(Stellenbosch : University of Stellenbosch, 2005-03)Biomass is the sole foreseeable sustainable source of organic fuels, chemicals and materials. It is a rich and renewable energy source, which is abundant and readily available. Primary factors motivating the use of ... -
Genetic engineering of the yeast Saccharomyces cerevisiae to degrade xylan
(Stellenbosch : University of Stellenbosch, 1999-12)ENGLISH ABSTRACT: Hemicellulose, consisting mainly of xylan, ranks after cellulose, as the most abundant group of renewable polysaccharides in agricultural biomass. Xylan is a complex polymer consisting of a β D 1,4 linked ... -
Genetic engineering of the yeast Saccharomyces cerevisiae to ferment cellobiose
(Stellenbosch : Stellenbosch University, 2007-03)ENGLISH ABSTRACT: The conversion of cellulosic biomass into fuels and chemicals has the potential to positively impact the South African economy, but is reliant on the development of low-cost conversion technology. Perhaps ... -
Geographical distribution, characterisation and evaluation of Saccharomyces cerevisiae strains isolated from South African vineyards in the warmer, inland regions of the Western Cape
(Stellenbosch : Stellenbosch University, 1999-12)ENGLISH SUMMARY: The natural or spontaneous fermentation of grape must sugars, by yeast that originate from the grapes and winery equipment, to ethanol, carbon dioxide and other minor, but important metabolites, produces ... -
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 ...
