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ARS Home » Midwest Area » Peoria, Illinois » National Center for Agricultural Utilization Research » Renewable Product Technology Research » People & Locations » Karen Ray
Karen J Ray
Renewable Product Technology Research
Biological Science Lab Technician

Phone: (309) 681-6670
Fax: (309) 681-6040

(Employee information on this page comes from the REE Directory. Please contact your front office staff to update the REE Directory.)


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
New family of surfactants from biobased materials Reprint Icon - (Peer Reviewed Journal)
Jackson, M.A., Evans, K.O., Price, N.P.J., Blackburn, J.A., Ward, C.J., Ray, K.J., Vermillion, K. 2021. New family of surfactants from biobased materials. ACS Sustainable Chemistry & Engineering. 9(41):13842-13850. https://doi.org/10.1021/acssuschemeng.1c04703.
Optimization of media and reaction conditions for production of polyol oils from soybean oil by Pseudomonas aeruginosa E03-12 NRRL B-59991 Reprint Icon - (Peer Reviewed Journal)
Hou, C.T., Ray, K.J. 2018. Optimization of media and reaction conditions for production of polyol oils from soybean oil by Pseudomonas aeruginosa E03-12 NRRL B-59991. Biocatalysis and Agricultural Biotechnology. 17:135-141. https://doi.org/10.1016/j.bcab.2018.10.006.
Structures of hydroxy fatty acids as the constituents of triacylglycerols in Philippine wild edible mushroom, Ganoderma lucidum Reprint Icon - (Peer Reviewed Journal)
Lin, J.T., Hou, C.T., Dulay, R.M., Ray, K.J., Chen, G.Q. 2017. Structures of hydroxy fatty acids as the constituents of triacylglycerols in Philippine wild edible mushroom, Ganoderma lucidum. Biocatalysis and Agricultural Biotechnology. 12/148-151. https://doi.org/10.1016/j.bcab.2017.09.010.
Identification of the molecular species of acylglycerols containing hydroxy fatty acids in wild edible mushroom Ganoderma lucidum - (Peer Reviewed Journal)
Hou, C.T., Lin, J.T., Dulay, R.M., Ray, K.J. 2017. Identification of the molecular species of acylglycerols containing hydroxy fatty acids in wild edible mushroom Ganoderma lucidum. Biocatalysis and Agricultural Biotechnology. 10:411-419. doi:10.1016/j.bcab.2017.05.003.
Identification of molecular species of acylglycerols of Philippine wild edible mushroom, Ganoderma lucidum - (Abstract Only)
Hou, C.T., Lin, J., Dulay, R., Ray, K.J. 2017. Identification of molecular species of acylglycerols of Philippine wild edible mushroom, Ganoderma lucidum [abstract]. American Oil Chemists' Society Annual Meeting, April 30-May 3, 2017, Orlando, FL.
Identification of molecular species of acylglycerols of Philippine wild edible mushroom, Ganoderma lucidum - (Peer Reviewed Journal)
Hou, C.T., Lin, J.T., Dulay, R.R., Ray, K.J. 2017. Identification of molecular species of acylglycerols of Philippine wild edible mushroom, Ganoderma lucidum. Biocatalysis and Agricultural Biotechnology. 9:19-27.
Production of polyol oils from soybean oil by Pseudomonas aeruginosa E03-12. - (Abstract Only)
Hou, C.T., Lin, J.T., Ray, K.J. 2016. Production of polyol oils from soybean oil by Pseudomonas aeruginosa E03-12 [abstract]. American Oil Chemists' Society.
Production of polyol oils from soybean oil by bioprocess and Philippines edible medicinal wild mushrooms - (Abstract Only)
Hou, C.T., Lin, J.T., Dulay, R., Ray, K.J. 2015. Production of polyol oils from soybean oil by bioprocess and Philippines edible medicinal wild mushrooms [abstract]. United States-Japan Cooperative Program in Natural Resources. Bio-S#1.
Identification of molecular species of polyol oils produced from soybean oil by Pseudomonas aeruginosa e03-12 nrrl b-59991 - (Peer Reviewed Journal)
Hou, C.T., Lin, J.T., Ray, K. 2015. Identification of molecular species of polyol oils produced from soybean oil by Pseudomonas aeruginosa E03-12 NRRL B-59991. Biocatalysis and Agricultural Biotechnology. 4(4):500-505. doi: 10.1016/j.bcab.2015.08.017.
Optimum conditions for the production of soy polyol oils and diacylglycerol from soybean oil by Acinetobacter haemolyticus A01-35 NRRL B-59985 - (Abstract Only)
Hou, C.T., Ray, K.J. 2015. Optimum conditions for the production of soy polyol oils and diacylglycerol from soybean oil by Acinetobacter haemolyticus A01-35 NRRL B-59985 [abstract].
Optimization of liquid culture conditions of Philippine wild edible mushrooms as potential source of bioactive lipids - (Peer Reviewed Journal)
Dulay, R.M.R., Ray, K., Hou, C.T. 2015. Optimization of liquid culture conditions of Philippine wild edible mushrooms as potential source of bioactive lipids. Biocatalysis and Agricultural Biotechnology. 4(3):409-415. doi: 10.1016/j.bcab.2015.04.003.
Production of polyol oils from soybean oil by bioprocess: results of microbial screening and identification of positive cultures Reprint Icon - (Research Notes)
Hou, C.T., Labeda, D.P., Ray, K.J. 2014. Production of polyol oils from soybean oil by bioprocess: Results of microbial screening and identification of positive cultures. Biocatalysis and Agricultural Biotechnology. 3(4):155-160.
Microbial screening and analytical methods for the production of polyol oils from soybean oil - (Abstract Only)
Hou, C.T., Ray, K.J. 2012. Microbial screening and analytical methods for the production of polyol oils from soybean oil [abstract]. American Oil Chemists' Society. Paper #BIO-3.
Structural characterization of novel sophorolipid biosurfactants from a newly-identified species of Candida yeast - (Peer Reviewed Journal)
Price, N.P., Ray, K.J., Vermillion, K., Dunlap, C.A., Kurtzman, C.P. 2011. Structural characterization of novel sophorolipid biosurfactants from a newly-identified species of Candida yeast. Carbohydrate Research. 348:33-41. DOI: 10.1016/j.carres.2011.07.016.
Production of sophorolipids biosurfactants by multiple species of the Starmerella (Candida) bombicola yeast clade - (Peer Reviewed Journal)
Kurtzman, C.P., Price, N.P., Ray, K.J., Kuo, T. 2010. Production of sophorolipids biosurfactants by multiple species of the Starmerella (Candida) bombicola yeast clade. FEMS Microbiology Letters. 311(2):140-146.
Effect of Surfactants on Production of Oxygenated Unsaturated Fatty Acids by Bacillus megaterium ALA2 - (Proceedings)
Hou, C.T., Kim, B., Kim, H., Ray, K.J. 2009. Effect of surfactants on production of oxygenated unsaturated fatty acids by Bacillus megaterium ALA2. United States-Japan Natural Resources, Food & Agricultural Panel. p. 168-171.
Effect of surfactants on production of oxygenated unsaturated fatty acids by Bacillus megaterium ALA2 - (Abstract Only)
Kim, B., Kim, H., Ray, K.J., Hou, C.T. 2009. Effect of surfactants on production of oxygenated unsaturated fatty acids by Bacillus megaterium ALA2 [abstract]. American Oil Chemists' Society. Bio-1, #5.
Isolation and Characterization of Rhamnolipid-Producing Bacterial Strains from a Biodiesel Facility - (Peer Reviewed Journal)
Rooney, A.P., Price, N.P., Ray, K.J., Kuo, T. 2009. Isolation and Characterization of Rhamnolipid-Producing Bacterial Strains from a Biodiesel Facility. FEMS Microbiological Letters. 295(1):82-87.
MALDI-TOF Mass Spectrometry of Naturally-Occurring Mixtures of Mono- and Di-rhamnolipids - (Peer Reviewed Journal)
Price, N.P., Ray, K.J., Vermillion, K., Kuo, T. 2008. MALDI-TOF Mass Spectrometry of Naturally-Occurring Mixtures of Mono- and Di-rhamnolipids. Carbohydrate Research. 344:204-209.
MICROBIAL CONVERSION OF RICINOLEIC ACID FOR PRODUCING 7,10,12-TRIHYDROXY-8(E)-OCTADECENOIC ACID, A NATURAL FUNGICIDE FOR TREATMENT OF RICE - (Abstract Only)
Kuo, T., Ray, K.J., Levinson, W.E., Knothe, G.H. 2004. Microbial conversion of ricinoleic acid for producing 7,10,12-trihydroxy-8(e)-octadecenoic acid, a natural fungicide for treatment of rice [abstract]. Great Lakes Regional American Chemical Society Symposium. Peoria IL. p. 186.
FOAM CONTROL DURING SCALE-UP BIOCONVERSION OF UNSATURATED FATTY ACIDS IN BATCH CULTURES - (Abstract Only)
A FACILE REACTOR PROCESS FOR PRODUCING 7,10-DIHYDROXY-8(E)-OCTADECENOIC ACID FROM OLEIC ACID CONVERSION BY PSEUDOMONAS AERUGINOSA PR3 - (Peer Reviewed Journal)
KUO, T., RAY, K.J., MANTHEY, L.K. A FACILE REACTOR PROCESS FOR PRODUCING 7,10-DIHYDROXY-8(E)-OCTADECENOIC ACID FROM OLEIC ACID CONVERSION BY PSEUDOMONAS AERUGINOSA PR3. BIOTECHNOLOGY LETTERS. 2003. V.25. P. 29-33.
CONVERSION OF OLEIC ACID TO 7,10-DIHYDROXY-8(E)-OCTADECENOIC ACID BY PSEUDOMONAS SP. PR3 IN A REACTOR - PRACTICAL CONSIDERATIONS - (Abstract Only)