Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 25 for “"colony forming units (CFU)"”.
-
Nanoparticles and photosensitisers; their interactions and antibacterial properties
… antimicrobials, that had a reduction of colony forming units (cfu) of S. aureus by 4.5 log 10 compared with, 0.5 log 10 for toluidine blue at the same concentration. The attachment of photosensitisers to thiol protected gold nanoparticles enhanced the lethal photosensitisation of …
-
The effect of feeding varying levels of Bifidobacterium globsum a on the performance, scouring index, gastrointestinal measurements and immunity of weanling and growing-finishing pigs
… were 0, 5.0 x 104 , 6.7 x 106 and 7.5 x 108 colony forming units (CFU)/d in Trial 1 and 0, 6.0 x 104 , 5.0 x 105 and 5.0 x 106 CFU/d in Trials 2 through 4 and the grower-finisher trial. In Trial 1, ADG was effected quadratically at wk 1-2 and 1-5 (P < .05) and wk 3-5 (P < .01) with pigs fed …
-
Microbial risk assessment for recreational use of the Kranji Reservoir, Singapore
… during the field campaign were 13.3 Enterococci colony forming units (CFU) per 100 ml water and 1400 Enterococci CFU per gram sediment. Based on the strengths and weaknesses of available statistics-based risk models, a model by Wiedenmann was chosen based on the flexibility of the model and the …
-
Microbial risk assessment for recreational use of the Kallang Basin, Singapore
… geometric-mean levels were established at 128 colony forming units (CFU) / 100 mL for Enterococci and 697 CFU/ 100 mL for E. coli. Based on these guideline geometric-mean concentrations, all of the stations exceeded the tolerable illness level for indicator bacteria at certain times, with peak …
-
Development of a novel infection model to test CSF1-Fc as a potential therapeutic for early onset sepsis
… therapy is required. Our laboratory proposes colony stimulating factor-1 fusion protein (CSF1-Fc) as a potential host-based therapeutic, to clear the underlying infection and limit inflammation in EOS, as it has been shown to increase the maturity of macrophages. The aim of this project was to …
-
Assessing the Efficacy of Bacteriological Analytical Manual (BAM) Enrichment Broths for Detection of <em>Salmonella</em> spp. in Meat Analogs
… burgers were spot-inoculated with 30 or less colony-forming units (CFU) of <em>Salmonella enterica </em>per 25 g of product and enriched in each broth. An additional seven non-inoculated replicates were tested with all broths. Pathogen recovery was evaluated using the methods described in BAM …
-
Targeted depletion of RibF, a putative bifunctional FAD synthetase/ flavokinase in Mycobacterium smegmatis using CRISPR interference
… to no reduction (0 log-fold change) in colony forming units (CFU). Moreover, targeted metabolomic analyses revealed that ribF depletion was associated with accumulation of 6,7-Dimethylribityllumazine (DMRL), suggesting that the disruption of RibF function blocked conversion of RF to the …
-
Aderência in vitro de bactérias bucais a diferentes tipos de piercings linguais
… and teflon. It used 160 piercings to count the Colony Forming Units (CFU) and 32 piercings for analysis in Scanning Electron Microscope (SEM). Of these, 96 (24 of each type) were individually incubated in 5 mL BHI (Brain Heart Infusion) broth and 50 μL of inoculum, at 37°C/24h. The others 96 …
-
The Mycobacterium smegmatis "Proteome" : effects of growth phase on total protein synthesis and on the response to heat shock
… entering stationary phase than the number of colony forming units (CFU). A plateau in the ATP growth curve preceded several stationary phase-induced events : a transitory cessation in the increase in number of CFU ; a decrease in the rate of accumulation of the cell division protein FtsZ; …
-
Identification of methicillin-resistant Staphylococcus aureus in horses using conventional and molecular techniques
… PCR assay had a detection limit of 2.18 x 108 colony-forming units (cfu)/ml. This detection limit is higher compared to other published molecular identification techniques used for Staphylococcus aureus but sensitive enough for the accurate detection of MRSA in overnight cultured isolates. …
-
Role of entF Gene in Iron Acquisition by Brucella abortus 2308
Brucella causes undulant fever in humans and uterine and systemic infection leading to abortions in domestic animals and wild life. For the acquisition of iron in mammalian hosts, species of Brucella are known to produce two siderophores, 2, 3-dihydroxy benzoic acid (2, 3-DHBA) and brucebactin. …
-
Renewable and sustainable water treatment using Moringa oleifera Lam. and biochar
… mg/l of each nickel (Ni) and lead (Pb) and 1x105 colony-forming units (CFU/ml) of Escherichia coli (E. coli) bacteria. It was first treated with MO and then passed through a column containing non-modified sewage sludge biochar. Encouraging results were obtained. The turbidity of the finally …
-
Characterization and encapsulation of probiotic bacteria using a Pea-protein Alginate matrix
… rapid (within the first 5 min at pH 2.0) 4-5 log colony forming units (cfu)/mL loss in viability. All probiotics tested were able to survive 5 h exposure to 0.3% Oxgall bile at pH 5.8. The relative ranking of probiotic adherence to Caco-2 cells was determined to be: L. acidophilus > B. catenulatum …
-
Reactivation of persistant tuberculosis
… is characterised by undetectable levels of colony-forming units (CFU) in mouse organs and mice being clinically asymptomatic for prolonged periods. Reactivation of persistent tuberculosis can occur spontaneously following short-course chemotherapy or can be achieved by immunosuppression, …
-
Urinary tract infection in children at Victoria Hospital, a district hospital in Cape Town, South Africa
… from a suprapubic aspirate, (2) culture of >104 colony forming units (CFU)/mL of a single organism from a catheter urine specimen, (3) culture of >105 CFU/mL of a single organism from a mid-stream clean catch specimen or if the urine sampling technique was not indicated in the laboratory or …
-
The effects of prebiotics on the growth performance and gastrointestinal microflora modulation in oreochromis mossambicus in Hardap region, Namibia
… fat, moisture, ash and protein contents. The colony-forming units (CFU) in the inulin group ii (3.54 ± 0.05 log 10 CFU/g) were significantly lower (P value ≤ 0.05) than the control group (3.54 ± 0.05 log 10 CFU/g). On the other hand, it was discovered that I group showed higher alpha and beta …
-
Pump-free magnetophoresis for improved point-of-care diagnostics
… demonstrated the ability to detect E.coli at 105 colony forming units (CFU/mL) with a fluorescent label in a pooled human urine sample. Chapter 3, describes improvements to the device described in chapter two. The limit of detection was improved by three orders of magnitude and calculated at 4.67 …
-
Impact of free-living diazotrophs, Azospirillum lipoferum and Gluconacetobacter azotocaptans, on growth and nitrogen utilization by wheat (Triticum aestivum cv. Lillian)
… revealed that the decline in recovery of colony forming units (CFU) of G. azotocaptans was not significantly different (P<0.05) for any seed treatment. There was a general decrease in CFU over time regardless of seed treatment. Analysis of the recovered CFU of A. lipoferum over time showed …
-
Mechanistic and synergistic actions of the in vitro antimycobacterial and immunomodulatory properties of Knowltonia vesicatoria (L.f.) Sims
… activity was established by enumeratring the colony forming units (CFU) via the colony counting system ColorQCount. To determine the immunological effects of samples on the macrophages, cytokine profiles were analyzed using cytometric bead array technology. To eliminate the possibility of …
-
The Role of Multidrug Efflux Pumps in the Stress Response of Pseudomonas aeruginosa to Organic Contamination
… uptake rates (WAUR) and viable cell counts as colony forming units (CFU) were determined as cells were exposed to increasing concentration of PCP. At the same time, changes in gene expression were examined by Affymetrix microarray technology. Results showed little change in whole-cell …
Page 1 of 2