Browsing Department of Microbiology by Title
Now showing items 33-52 of 317
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Carnitine in yeast and filamentous fungi
(Stellenbosch : Stellenbosch University, 2003-12)ENGLISH ABSTRACT: In the yeast Saccharomyces cerevtstee, two biochemical pathways ensure that activated cytoplasmic or peroxisomal acetyl-groups are made available for mitochondrial energy production when the cells ... -
Characterisation and antimicrobial activity of biosurfactant extracts produced by Bacillus amyloliquefaciens and Pseudomonas aeruginosa isolated from a wastewater treatment plant
(SpringerOpen, 2017)Biosurfactants are unique secondary metabolites, synthesised non-ribosomally by certain bacteria, fungi and yeast, with their most promising applications as antimicrobial agents and surfactants in the medical and food ... -
Characterisation of biogenic amine genes in lactic acid bacteria isolated from wine
(Stellenbosch : Stellenbosch University, 2003-12)ENGLISH ABSTRACT: The winemaking process involves a complex microbial flora where the interaction of yeasts, lactic acid bacteria and acetic acid bacteria play an important role in the quality and wholesomeness of the ... -
Characterisation of L-malic acid metabolism in strains of Saccharomyces and the development of a commercial wine yeast strain with an efficient malo-ethanolic pathway
(Stellenbosch : Stellenbosch University, 2002-12)ENGLISH ABSTRACT: L-Malic and tartaric acid are the most prominent organic acids in wine and playa crucial role in winemaking processes and wine quality, including the organoleptic quality and the physical, biochemical ... -
Characterisation of plasmid p31T1 isolated from Aeromonas
(Stellenbosch : Stellenbosch University, 2013-12)ENGLISH ABSTRACT: Plasmids are an integral part of the horizontal gene pool and, therefore, are the main vectors for the spread of antibiotic and heavy metal resistance genes in the environment. Functional and taxonomic ... -
Characterisation of the malate transporter and malic enzyme from Candida utilis
(Stellenbosch : University of Stellenbosch, 2011-10)ENGLISH ABSTRACT: Yeast species differ remarkably in their ability to degrade extracellular dicarboxylic acids and to utilise them as their only source of carbon. The fission yeast Schizosaccharomyces pombe effectively ... -
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 ... -
Characterisation, cloning and heterologous expression of the α-glucuronidase from Aureobasidium pullulans
(Stellenbosch : Stellenbosch University, 2004-03)ENGLISH ABSTRACT: Xylanolytic accessory enzymes produced by the endo-p-l,4-xylanase overproducing, colour-variant strain of the euascomycetous fungus Aureobasidium pullulans, NRRL Y-2311-1, were studied. a- Glucuronidase ... -
Characteristics and adaptability of iron- and sulfur-oxidizing microorganisms used for the recovery of metals from minerals and their concentrates
(BioMed Central, 2005-05)Microorganisms are used in large-scale heap or tank aeration processes for the commercial extraction of a variety of metals from their ores or concentrates. These include copper, cobalt, gold and, in the past, uranium. The ... -
Characterization and evaluation of indigenous Saccharomyces cerevisiae strains isolated from South African vineyards
(Stellenbosch : Stellenbosch University, 1999-12)ENGLISH SUMMARY: The bioconversion of grape juice into wine by simply allowing the yeasts, associated with grape berries and winery equipment, to ferment the sugars to ethanol, carbon dioxide and other minor, but important ... -
Characterization of a broad-spectrum antimicrobial peptide from Enterococcus mundtii active against bacteria associated with middle ear infections
(Stellenbosch : University of Stellenbosch, 2006-12)ENGLISH ABSTRACT: Strain ST4SA, isolated from soya beans, was identified as Enterococcus mundtii. BacST4SA, a bacteriocin produced by strain ST4SA inhibited the growth of Acinetobacter baumannii, Bacillus cereus, Clostridium ... -
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 an antimicrobial peptide from Enterococcus faecium active against bacteria associated with sexually transmitted diseases
(Stellenbosch : Stellenbosch University, 2006-04)ENGLISH ABSTRACT : Urogenital tract infections are a major health problem among women. These infections include sexually transmitted diseases such as gonorrhoeae, chlamydia, syphilis and acquired immunity deficiency ... -
Characterization of bacteriocin 423 produced by Lactobacillus pentosus
(Stellenbosch : Stellenbosch University, 2000-12)ENGLISH ABSTRACT: Worldwide, bacteriocins, particularly those produced by food-related lactic acid bacteria, are receiving attention due to the possible use of these peptides as natural preservatives in food, replacing ... -
Characterization of bacteriocins produced by lactic acid bacteria from fermented beverages and optimization of starter cultures
(Stellenbosch : Stellenbosch University, 2008-03)Lactobacillus plantarum JW3BZ and Lactobacillus fermentum JW15BZ isolated from boza, a Bulgarian cereal based fermented beverage, produce bacteriocins JW3BZ and JW15BZ active against a wide range of food spoilage and ... -
Characterization of killer yeast isolates from chenin blanc grapes and grape skins
(South African Society for Enology and Viticulture, 1991)Wild-type killer yeast strains isolated from six South African wineries were identified using classical taxonomic methods. They were further characterized according to their cross-reactions with reference killer yeasts ... -
Characterization of Leucocin B-KM432Bz from Leuconostoc pseudomesenteroides isolated from Boza, and comparison of its efficiency to Pediocin PA-1
(PLoS, 2013-08)A bacteriocin-producing bacterium was isolated from boza and identified as Leuconostoc pseudomesenteroides KM432Bz. The antimicrobial peptide was purified and shown to be identical to other class IIa bacteriocins: leucocin ... -
Characterization of nisin F and its role in the control of respiratory tract and skin infections
(Stellenbosch : University of Stellenbosch, 2009-03)Multidrug resistant strains of Staphylococcus aureus is presenting an increasing threat, especially immune compromised individuals. Many of these strains have developed resistance to newly approved drugs such as ... -
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. ... -
Characterization of plasmids isolated from Aeromonas spp. obtained from South African aquaculture systems
(Stellenbosch : Stellenbosch University, 2007-03)ENGLISH ABSTRACT: The plasmid content of 37 Aeromonas spp. isolates, obtained from South African tilapia, trout and koi aquaculture systems, was evaluated and 17 Aeromonas spp. isolates appeared to contain one or more ...
