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Showing 1 to 20 of 76 for “"colony forming units"”.
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Rapid, Quantitative Assessment of Antimycobacterial Water Disinfection based on the Firefly Luciferase Reporter Gene
… produced and the number of cells recovered as colony forming units. In disinfection studies of both pLUC10-carrying derivatives of M. avium strain A5 and M. smegmatis strain VT307, survival, as measured in colony forming units, correlated with survival in relative light units. Luciferase …
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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 …
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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 …
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Changes in respiration rates and biomass attributes of epilithon due to extended exposure to zinc
… concentrations, and total and zinc-tolerant colony forming units. An increase in epilithic glucose respiration per unit biomass consistently occurred 5 to 10 days after dosing with 1.0 mg Zn liter⁻¹ was started. At the same time significantly lower epilithon biomass occurred in the high dosed …
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Investigations of Bacteria Viability on Surfaces Using ω-functionalized Alkanethiol Self-Assembled Monolayers
… agar and overnight incubation, the number of colony forming units on the surface were counted. Statistical analyses were performed to compare the number of colony forming units on different surfaces. Surfaces were characterized after the assay by RAIRS. The RAIR spectra indicated that no …
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Detection and Identification of Acinobacillus pleuropneumoniae serotype 5 by multiplex Polymerase Chain Reaction
… of this assay was determined to be less than 100 colony forming units. This PCR assay enables us to detect A. pleuronpeumoniae and definitively distinguishes serotype 5 strains from other serotyes.
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Wheat Take-All: Quantification of Resistance and Pseudomonad Suppression and the Potential for Their Interaction
… antagonist strain than non-antagonist strain. Colony forming units of P. fluorescens, applied singly or in combination with B. megaterium, were significantly higher on Ggt-infected roots compared to non-inoculated roots after 7 and 10 days from treatment. The CFUs of B. megaterium, applied …
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Combining ability study for the development of resistance to Aflation contamination by Aspergillus flavus link ex fries in groundnuts
… with 3 replications and Aspergillus flavus colony forming units enumerated from the soil. Significant (P<0.05) differences among the crosses for aflatoxin B1 contamination levels and colony forming units measured as propagule density (cfu)g-1 soil were observed. Total aflatoxin B1 …
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Combining ability study for the development of resistance to Aflation contamination by Aspergillus flavus link ex fries in groundnuts
… with 3 replications and Aspergillus flavus colony forming units enumerated from the soil. Significant (P<0.05) differences among the crosses for aflatoxin B1 contamination levels and colony forming units measured as propagule density (cfu)g-1 soil were observed. Total aflatoxin B1 …
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The Interaction of Neisseria Gonorrhoeae with Human Monocytes
… strain, FA19, were studied. Viable colony-forming units remaining after incubation with monocytes were used to assess the extent of killing. The data show that 50% of T3 and T4 gonococci of both strains were killed by monocytes over a 2 hour period. Serum was necessary for the …
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An Evaluation of the Role of Temperature on the Safety and Quality of Raw Shellstock Oysters and Bluefish
… vulnificus by a minimum of 1 log CFU/g oyster (Colony Forming Units per gram) (p < 0.05). Olfactory acceptability was below 40% when V. vulnificus growth was at its highest (p < 0.05). Refrigerated storage should be considered a CCP for raw shellstock since even moderate temperature control kept …
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ΜΕΛΕΤΗ ΤΗΣ ΕΠΙΔΡΑΣΗΣ ΔΥΟ ΦΘΟΡΙΟΥΧΩΝ ΣΚΕΥΑΣΜΑΤΩΝ ΣΤΟΝ S MUTANS ΣΕ ΑΣΘΕΝΕΙΣ ΜΕ ΟΡΘΟΔΟΝΤΙΚΑ ΜΗΧΑΝΗΜΑΤΑ
… STANNOUS FLUORIDE. ON THE TOTAL BACTERIA (TOTAL COLONY FORMING UNITS) AND ON S.MUTANS WAS STUDIED DURING THEIR USE ANDAFTER IT. THE FINDINGS OF THIS STUDY ARE THE FOLLOWING: 1. THE S.MUTANS LEVELSIN SALIVA ARE ELEVATED IN ORTHODONTIC PATIENTS, 6 MONTHS AFTER THE INSERTION OF ORTHODONTIC …
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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 …
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Optimisation of the preservation of microbial cell banks for enhanced fermentation process performance
… using optical density, dry cell weight, colony forming units, and multi-parameter flow cytometry. The application of multi-parameter flow cytometry using the fluorophores DiBac\(_4\)(3) and PI allowed real time viability measurements of individual microbial cells to be monitored before …
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Visualisation of bioluminescent Vibrio midae SY9 K811 in juvenile Haliotis midae abalone using non-invasive bioluminescence imagining
… bioluminescent with a minimum of 5.264 x104 colony forming units detectable in liquid culture. The bioluminescent cells emitted light stably and consistently without compromising the growth of the strain, and bioluminescence emission was at its highest during the logarithmic growth phase. A …
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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 …
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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 …
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Development of microfluidic pipette tips for automated electroporation
… fabricated microfluidic pipette tips, is 6.4x10⁹ colony forming units per micro-gram of DNA (CFU/[mu]gDNA).The maximum output performance of the cuvette electroporation process was 2.5x10⁹ CFU/([mu]gDNA). The performance of the microfluidic tips is 2.5X the output efficiency of the cuvettes at the …
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Chemolithotrophic nitrate dependent growth of Rhizobium japonicum on carbon monoxide and its relationship to hydrogenase activity
… after which no further increase was noted. Colony forming units increased from 1 X 10⁶ cells per ml to a maximum of 2.0 X 10⁸ cells per ml of culture medium. Growth in the absence of CO was substantially less indicating that CO was required for growth. The rate of disappearance of …
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Effectiveness of GentleWave CleanFlow on Multispecies Endodontic Biofilm Removal in Single Rooted Extracted Teeth
… agar plates and incubated for 48 hours when colony forming units were counted. Results: Both GW and standard needle irrigation demonstrated significantly lower CFU/mL than the negative control (p<0.001). However, the GW and positive control groups were not significantly different from one …
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