研究领域

There are four current research projects. General descriptions are provided below. We are currently seeking PhD candidates for the microbial production of polyhydroxyalkanoates (project 4). For details, please contact juliana.ramsay@queensu.ca 1. Biodecoloration of textile dye effluents 2. Bioremediation of polyaromatic hydrocarbons 3. Applications of immobilized soil bioreactors 4. High-density microbial production of a biodegradable thermoelastomer

Fermentation and product recovery Pollution treatment Bioremediation

近期论文

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Sun Z, Ramsay J, Guay M, Ramsay B, "Increasing the yield of MCL-PHA from nonanoic acid by co-feeding glucose during the PHA accumulation stage in two-stage fed-batch fermentations of Pseudomonas putida KT2440," J Biotechnol Available online, 2007. (Accepted) Sun Z, Ramsay J, Guay M, Ramsay B, "Fermentation process development for the production of medium-chain-length poly-3-hydroxyalkanoates," Appl Microbiol Biotechnol 75, 475-485, 2007 [More information]. Thiruchelvam AT, Ramsay JA, "Growth and laccase production kinetics of Trametes versicolor in a stirred tank reactor," Appl Microbiol Biotechnol 74, 547-554, 2007 [More information]. Sun Z, Ramsay JA, Guay M, Ramsay BA, "Carbon-limited fed-batch production of medium-chain-length polyhydroxyalkanoates from nonanoic acid by Pseudomonas putida KT2440," Appl Microbiol Biotechnol 74, 69-77, 2007 [More information]. Yu Y, Ramsay JA, Ramsay BA, "On-line estimation of dissolved methane concentration," Biotechnol Bioeng 95, 788-793, 2006[More information]. Jiang X, Ramsay JA, Ramsay BA, "Acetone extraction of mcl-PHA from Pseudomonas putida KT2440," J Methods Microbiol 67, 212-219, 2006 [More information]. Ramsay J, Shin M, Wong S, Goode C, "Amaranth decoloration by Trametes versicolor in a rotating biological contacting reactor," J Ind Microbiol Biotechnol 33, 791-795, 2006 [More information]. Sun Z, Ramsay J, Guay M, Ramsay B, "Automated feeding strategies for high cell density fed-batch cultivation of Pseudomonas putida KT2440," Appl Microbiol Biotechnol. 36, 423-431, 2006 [More information]. Champagne P-P, Ramsay JA, "Contribution of MnP and laccase to dye decoloration by Trametes versicolor," Appl Microbiol Biotechnol 69, 276-285, 2005 [More information]. Ramsay JA, Robertson K, vanLoon G, Acay N, Ramsay BA., "Enhancement of PAH biomineralization rates under Fe(III)-reducing conditions," Chemosphere 61, 733-740, 2005 [More information]. Ramsay JA, Mok, WHW, Luu Y-S, Savage M., "Decoloration of textile dyes by alginate immobilized Trametes versicolor,"Chemosphere 61, 956-964, 2005 [More information]. Amankwah RK, Yen W-T, Ramsay JA., "A two-stage bacterial pretreatment process for double refractory gold ores," Minerals Eng.18, 103-108, 2005 [More information]. Ramsay JA, Goode C., "Decoloration of a carpet dye effluent using Trametes versicolor," Biotechnol. Lett. 23, 197-201, 2003 [More information]. Luu Y, Ramsay BA, Ramsay JA., "Nitrilotriacetate stimulation of anaerobic Fe(III) respiration by mobilization of humic materials in soil," Appl. Environ. Microbiol. 69, 5255-5262, 2003 [More information]. Ramsay JA, Li H, Brown RS, Ramsay BA., "Naphthalene and anthracene mineralization linked to oxygen, nitrate, Fe(III) and sulphate reduction in a mixed microbial population," Biodegradation 14, 321-329, 2003 [More information]. Luu Y, Ramsay JA., "Microbial mechanisms of accessing insoluble Fe(III)," World J. Microbiol. Biotechnol. 19, 215-224, 2003 [More information]. Ramsay JA, Nguyen T., "Decoloration of textile dyes by Trametes versicolor and its effect on dye toxicity," Biotechnol. Lett. 24, 1757-1761, 2002 [More information]. Shin M, Nguyen T, Ramsay J., "Evaluation of support materials for the surface immobilization and decoloration of amaranth by Trametes versicolor," Appl. Microbiol. Biotechnol. 60, 218-223, 2002 [More information]. Swamy J, Ramsay, JA., "Effects of glucose and nitrogen concentrations on sequential dye decoloration by Trametes versicolor,"Enzyme Microb. Technol 25, 278-284, 1999 [More information]. Beaudin N, Caron RF, Legros R, Ramsay J, Ramsay B., "Identification of the key factors affecting composting of a weathered hydrocarbon-contaminated soil," Biodegradation 10, 127-133, 1999 [More information]. Swamy J, Ramsay JA., "Effects of Mn2+ and NH4+ concentrations on laccase and manganese peroxidase production and Amaranth decoloration by Trametes versicolor," Appl. Microbiol. Biotechnol. 51, 391-396, 1999 [More information]. Swamy J, Ramsay JA., "The evaluation of white rot fungi for the decoloration of textile dyes," Enzyme Microb. Technol 24, 130-137, 1999 [More information]. Ramsay JA, Aly Hassan M-C, Ramsay BA., "Conversion of hemicellulose to propionic acid," Enzyme Microb. Technol. 22, 292-295, 1998 [More information]. Ramsay J, Rhazi B, Garnier A, Saphieha S, Chavarie C, Ramsay B., "Attachment of Vero cells to corona-treated, plastic surfaces,"J. Ferment. Bioeng. 83, 173-178, 1997 [More information]. St. Pierre N, Favis BD, Ramsay BA, Ramsay JA, Verhoogt H., "Processing and characterisation of starch/polyethylene blends,"Polymer 38, 647-656, 1997 [More information].