Browsing Research Articles (Microbiology) by Title
Now showing items 83-102 of 106
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A note on the use of reduced transport fluid (RTF) for isolation of Neisseria gonorrhoeae
(Health & Medical Publishing Group, 1974)Swabs containing pus from urethral discharges obtained from 55 male patients attending venereal disease clinics were transported in Stuart's transport medium or RTF (reduced transport fluid) and then cultured on Thayer ... -
The occurrence and infectivity of arbuscular mycorrhizal fungi in inoculated and uninoculated rhizosphere soils of two-year-old commercial grapevines
(South African Society for Enology and Viticulture, 2005)Arbuscular mycorrhizal (AM) fungal populations present in the rhizosphere of vine roots in the vineyards of a commercial farm in the Stellenbosch Region were investigated using microscopic analyses. AM root colonisation ... -
Optimization of automated ribosomal intergenic spacer analysis for the estimation of microbial diversity in fynbos soil
(Academy of Science of South Africa -- ASSAF, 2010-08)Automated ribosomal intergenic spacer analysis (ARISA) has become a commonly used molecular technique for the study of microbial populations in environmental samples. The reproducibility and accuracy of ARISA, with and ... -
Optimized production of bacteriocin ST11BR, generated by Lactobacillus paracasei subsp. paracasei ST11BR isolated from traditional South African beer
(Academy of Science for South Africa, 2005)Little is known about the production of antimicrobial peptides (bacteriocins) by lactic acid bacteria in traditional South African beer and their inhibition of food spoilage or pathogenic bacteria. In this paper, we report ... -
Pharmaceutical and personal care products (PPCPs) as endocrine disrupting contaminants (EDCs) in South African surface waters
(South African Water Research Commission, 2017-10)Globally, water resources are under constant threat of being polluted by a diverse range of man-made chemicals, and South Africa is no exception. These contaminants can have detrimental effects on both human and wildlife ... -
A phylogenetic revision of Penicillium sect. Exilicaulis, including nine new species from fynbos in South Africa
(International Mycological Association, 2016-06-01)A survey of the fynbos biome in South Africa resulted in the isolation of 61 Penicillium species from Protea repens infructescences, air, and soil samples. Fourteen of these belong to Penicillium sect. Exilicaulis and ... -
Prevention of food poisoning in hospital patients
(Health & Medical Publishing Group, 1974)Bacteriological investigations of raw and cooked foods and of food handlers in abattoirs, food factories and hospital kitchens show that they are potential sources of food poisoning organisms. The use of reheated (reconstituted) ... -
Primary immunodeficiency diseases
(Health and Medical Publishing Group (HMPG), 2012-08)Primary immunodeficiency diseases (PIDs) are a group of disorders with defects in the development or function (or both) of the immune system. Most PIDs originate from mutations in single genes, but polygenic forms do ... -
Raw starch conversion by Saccharomyces cerevisiae expressing Aspergillus tubingensis amylases
(BioMed Central, 2013-11)Background: Starch is one of the most abundant organic polysaccharides available for the production of bio-ethanol as an alternative transport fuel. Cost-effective utilisation of starch requires consolidated bioprocessing ... -
Relationship between ergosterol concentrations in wine yeast and sugar fermentation at different temperatures
(South African Society for Enology and Viticulture, 1989)The effect of cellular ergosterol on the fermentation ability of four different Saccharomyces cerevisiae wine yeast strains was studied. F~rmentations were carried out at three temperatures and ergosterol concentrations ... -
Relationship between fatty acid concentrations in wine yeasts and sugar fermentation at different temperatures
(South African Society for Enology and Viticulture, 1989)The effects of temperature and fermentation stage on the cellular concentrations of unsaturated and saturated fatty acids on the fermentation abilities of four different Saccharomyces cerevisiae wine yeasts were studied ... -
Release of bacteriocins from nanofibers prepared with combinations of poly(D,L-lactide) (PDLLA) and poly(ethylene oxide) (PEO)
(MDPI, 2011)Plantaricin 423, produced by Lactobacillus plantarum, and bacteriocin ST4SA produced by Enterococcus mundtii, were electrospun into nanofibers prepared from different combinations of poly(D,L-lactide) (PDLLA) and poly(ethylene ... -
A review : the fate of bacteriocins in the human gastro-intestinal tract : do they cross the gut–blood barrier?
(Frontiers Media, 2018)The intestinal barrier, consisting of the vascular endothelium, epithelial cell lining, and mucus layer, covers a surface of about 400 m2. The integrity of the gut wall is sustained by transcellular proteins forming tight ... -
Role of cultivation media in the development of yeast strains for large scale industrial use
(BioMed Central, 2005-11)Abstract: The composition of cultivation media in relation to strain development for industrial application is reviewed. Heterologous protein production and pentose utilization by Saccharomyces cerevisiae are used to ... -
Safety assessment of antibiotic and probiotic feed additives for Gallus gallus domesticus
(Nature Research, 2017)Antibiotics in feed select for resistant strains and is thus a threat to human health. In this study, the effect of a multi-strain probiotic and antibiotics on the growth and health of broilers was studied. Equal numbers ... -
A simple method for the primary isolation of Mycobacterium in a carbon dioxide atmosphere
(Health & Medical Publishing Group, 1974)A simple, inexpensive method which provides increased CO2 tension for the primary isolation of mycobacteria is described. Using this technique, the primary isolation of mycobacteria from 1114 specimens of sputum, gastric ... -
Special issue from the 20th International Symposium on Alcohol Fuels (ISAF 2013) : alcohol fuels enabling sustainable future development
(BioMed Central, 2013-12)This Editorial introduces a special issue from the 20th International Symposium on Alcohol Fuels (ISAF 2013) on alcohol fuels enabling sustainable future development. -
Species diversity of non-tuberculous mycobacteria isolated from humans, livestock and wildlife in the Serengeti ecosystem, Tanzania
(BioMed Central, 2014-11-18)Background: Non-tuberculous mycobacteria (NTM), which are ubiquitous micro-organisms occurring in humans, animals and the environment, sometimes receive public health and veterinary attention as opportunistic disease-causing ... -
Strains of lactobacillus plantarum in grape must are also present in the intestinal tract of vinegar flies
(South African Society for Enology and Viticulture, 2006)Twenty-one lactic acid bacteria isolated from the intestinal tract of Drosophila simulans Stuvervant and nine from Merlot noir grapes were identified as L. plantarum by PCR with species-specific primers and 16S rDNA ... -
Taxonomic status of lactic acid bacteria in wine and key characteristics to differentiate species
(SASEV, 2009)Oenococcus oeni is the best malolactic bacterium adapted to low pH and the high SO2 and ethanol concentrations in wine. Leuconostoc mesenteroides and Leuconostoc paramesenteroides (now classified as Weissella paramesenteroides) ...
