A5007382201- Microbial bioremediation and biosurfactants
- Biofuel production and bioconversion
- Toxic Organic Pollutants Impact
- Microbial Metabolic Engineering and Bioproduction
- Fungal and yeast genetics research
- Microbial Community Ecology and Physiology
- Pesticide and Herbicide Environmental Studies
- Parasitic Infections and Diagnostics
- Wastewater Treatment and Nitrogen Removal
- Bacteriophages and microbial interactions
- Monoclonal and Polyclonal Antibodies Research
- Polyamine Metabolism and Applications
- Groundwater flow and contamination studies
- Fecal contamination and water quality
- Analytical chemistry methods development
- Soil Carbon and Nitrogen Dynamics
- Fermentation and Sensory Analysis
- Pharmaceutical and Antibiotic Environmental Impacts
- Aldose Reductase and Taurine
- Mycobacterium research and diagnosis
- Enzyme Production and Characterization
- Enzyme Catalysis and Immobilization
- bioluminescence and chemiluminescence research
- Chromium effects and bioremediation
- Microbial Metabolites in Food Biotechnology
University of Guelph
2009-2021
Case Western Reserve University
2006-2015
Louis Stokes Cleveland VA Medical Center
2006-2015
University School
2015
Chung Yuan Christian University
2006-2010
Ministry of the Environment, Conservation and Parks
2009
University of British Columbia
1997-2003
The University of Texas Medical Branch at Galveston
2002
UNSW Sydney
2002
Office of Environmental Management
1998
Xylose fermentation by Saccharomyces cerevisiae requires the introduction of a xylose pathway, either similar to that found in natural xylose-utilizing yeasts Pichia stipitis and Candida shehatae or bacterial pathway. The use NAD(P)H-dependent XR NAD(+)-dependent XDH from P. creates cofactor imbalance resulting xylitol formation. effect replacing native with mutated increased K(M) for NADPH was investigated ethanol recombinant S. strains. Enhanced yields accompanied decreased were obtained...
The induction of xylose reductase and xylitol dehydrogenase activities on mixed sugars was investigated in the yeasts Pachysolen tannophilus Pichia stipitis . Enzyme induced d -xylose served as controls. In both yeasts, -glucose, -mannose, 2-deoxyglucose inhibited enzyme by to various degrees. Cellobiose, l -arabinose, -galactose were not inhibitory. liquid batch culture, P. utilized -glucose -mannose rapidly preferentially over -xylose, while consumption poor lagged behind that pentose...
Abstract The ability of rhamnolipid biosurfactants produced by Pseudomonas aeruginosa UG2 to wash a model hydrocarbon mixture from unsaturated soil columns was studied. Both aliphatic and aromatic hydrocarbons were effectively removed without clogging with non‐recirculating biosurfactant solutions. Recirculation solutions did not substantially affect washing efficiency. Of the several chemical surfactants tested, only Triton X‐100 provided comparable efficiency clogging. results suggest that...
The effect of Pseudomonas aeruginosa UG2 biosurfactants or inocula on phenanthrene mineralization in uninoculated nonsterile soil slurries and inoculated with the phenanthrene-mineralizing sp. UG14r was investigated. In sandy loam silt amended phenanthrene, inoculation alone co-culture UG2Lr reduced lag period before onset by 1 week. total amount mineralized after 5 weeks lower not significantly different from control slurries. Inoculation P. did improve mineralization. creosote-contaminated...