Browsing Department of Microbiology by Title
Now showing items 219-238 of 317
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Malic acid distribution and degradation in grape must during skin contact : the influence of recombinant malo-ethanolic wine yeast strains
(South African Society for Enology and Viticulture, 2005)Wine acidity plays an important role in determining wine quality and ensuring physiochemical and microbiological stability. In high-acid wines, the L-malic acid concentration is usually reduced through bacterial malolactic ... -
Malic acid in wine : origin, function and metabolism during vinification
(South African Society for Enology and Viticulture, 2006)The production of quality wines requires a judicious balance between the sugar, acid and flavour components of wine. L-Malic and tartaric acids are the most prominent organic acids in wine and play a crucial role in the ... -
Market and product assessment of probiotic/prebiotic - containing functional foods and supplements manufactured in South Africa
(Health & Medical Publishing Group, 2005)Objectives. Probiotic and prebiotic products manufactured in South Africa were identified and health and content claims stated on the labels were evaluated according to available scientific evidence, the proposed South ... -
Mathematicians aim to secure the next generation
(Academy of Science of South Africa, 2003)A new institute aspires to become a continental centre for mathematics teaching, starting with an advanced diploma course for graduates. It has the potential to address some of the existing problems in mathematics education ... -
Micro-organisms involved in iron oxidation and acid mine drainage formation in KwaZulu-Natal and their control by soil covers on coal waste dumps
(Stellenbosch : Stellenbosch University, 1998-03)ENGLISH ABSTRACT: The biologically catalysed oxidation of pyrite in the outer layers of coal waste dumps leads to the formation of acid mine drainage. The oxidation of pyrite to ferric iron and sulphate is a complex process ... -
Microbes at surface-air interfaces : the metabolic harnessing of relative humidity, surface hygroscopicity, and oligotrophy for resilience
(Frontiers, 2016)The human environment is predominantly not aqueous, and microbes are ubiquitous at the surface-air interfaces with which we interact. Yet microbial studies at surface-air interfaces are largely survival-oriented, whilst ... -
Microbial communities in the fynbos region of South Africa : what happens during woody alien plant invasions
(MDPI, 2020)The Cape Floristic Region (CFR) is globally known for its plant biodiversity, and its flora is commonly referred to as fynbos. At the same time, this area is under severe pressure from urbanization, agricultural expansion ... -
Microbial community structure as an indicator of soil health in apple orchards
(Stellenbosch : University of Stellenbosch, 2010-03)ENGLISH ABSTRACT: The relationship between various land management practices, soil properties and the soil microbial communities are complex and little is known about the effect of these interactions on plant productivity ... -
Microbial degradation of mycotoxins
(Stellenbosch : Stellenbosch University, 2007-04)ENGLISH ABSTRACT: Aflatoxins are mycotoxins predominantly produced by the filamentous fungi Aspergillus flavus and Aspergillus parasiticus. Aflatoxin B1 (AFB1), the most abundant aflatoxin, is highly mutagenic, toxic, ... -
Microbial diversity of soils of the Sand fynbos
(Stellenbosch : Stellenbosch University, 2008-12)The soil environment is thought to contain a lot of the earth’s undiscovered biodiversity. The aim of this study was to understand the extent of microbial diversity in the unique ecosystem of the Western Cape’s fynbos ... -
Microbial interactions in drinking water systems
(Stellenbosch : Stellenbosch University, 2004-03)ENGLISH ABSTRACT: Microorganisms show a tendency to accumulate on surfaces in aqueous environments to form biofilms. Microbial biofilms represent a significant problem in public health microbiology as the development ... -
Microbial response to oxidising biocides
(Stellenbosch : Stellenbosch University, 2003-03)ENGLISH ABSTRACT: Biofouling of water systems is a problem extensively experienced in industry. Although this subject is the focus of many studies, the ability of microorganisms to survive exposure to biocides is still ... -
Migration of bacteriocins across gastrointestinal epithelial and vascular endothelial cells, as determined using in vitro simulations
(Nature Research (part of Springer Nature), 2019-08-07)Little is known about the migration of bacteriocins across human cells. In this study, we report on migration of three bacteriocins nisin, plantaricin 423 and bacST4SA across colonic adenocarcinoma (Caco-2) cells and human ... -
Modeling the minimum enzymatic requirements for optimal cellulose conversion
(IoP Publising, 2013-04)Hydrolysis of cellulose is achieved by the synergistic action of endoglucanases, exoglucanases and -glucosidases. Most cellulolytic microorganisms produce a varied array of these enzymes and the relative roles of the ... -
Modification of the agar sausage of Ten Cate for bacteriological control
(Health & Medical Publishing Group, 1974)The manufacture and use of a disposable plastic syringe as a container for a column of solid culture medium, instead of a plastic sausage casing, is described. The method of sampling and its usefulness in the supervision ... -
A modified reduced transport fluid for the preservation of Neisseria gonorrhoeae during transport
(Health & Medical Publishing Group, 1975)Reduced transport fluid (RTF) was modified by altering its pH and by the addition of a yeast dialysate. This reduced transport yeast containing fluid (RTYF) was shown to be superior to RTF in maintaining viability of ... -
Molecular analysis of genetic variation and relationships within the population of abalone (Haliotis midae) at the Sea Plant Products abalone hatchery, Hermanus, R.S.A.
(Stellenbosch : Stellenbosch University, 2004-12)ENGLISH ABSTRACT: The species Haliotis midae is the only commercially exploitable abalone species of the six found in the South African coastal waters. This species is under substantial pressure from both legal and ... -
Molecular analysis of GJB2 (connexin 26) and GJB6 (connexin 30) gene mutations in non-syndromic hereditary deafness in South Africa
(Stellenbosch : Stellenbosch University, 2004-03)ENGLISH ABSTRACT: The most common inherited sensory disorder that affects I in 1 000 children is severe hearing loss. In developed countries, about a third of cases have a genetic origin, 80% of which are autosomal recessive ... -
Molecular characterisation of Flavobacterium spp. and investigation of their biofilm-forming capacity in the tilapia aquaculture system
(Stellenbosch : University of Stellenbosch, 2006-04)ENGLISH ABSTRACT: Fish infections caused by pathogenic Flavobacterium spp. are a major problem in the aquaculture industry worldwide, often leading to large economic losses. Thirty-two Flavobacterium spp. isolates, ... -
The molecular characterisation of Mss11p, a transcriptional activator of the Saccharomyces cerevisiae MUC1 and STA1-3 genes
(Stellenbosch : Stellenbosch University, 2002-03)ENGLISH ABSTRACT: Upon nutrient limitation, normal cells of the budding yeast, Saccharomyces cerevisiae, undergo a transition from ovoid cells that bud in an axial (haploid) or bipolar (diploid) fashion to elongated ...
