Journal papers

2010 ~
  1. Lihao Guo, Jian Zhang, Fengxian Hu, Dewey DY Ryu*, Jie Bao, 2013, Consolidated bioprocessing of highly concentrated Jerusalem artichoke tubers for simultaneous saccharification and ethanol fermentation, Biotechnology and Bioengineering, 110, 2606 – 2615.
  2. Hong-Wei Dong, Li-Qiang Fan, Zichen Luo, Jian-Jiang Zhong, Dewey D. Y. Ryu, Jie Bao, 2013, Improvement of Ethanol Productivity and Energy Efficiency by Degradation of Inhibitors Using Recombinant Zymomonas mobilis (pHW20a-fdh),
    Biotechnology and Bioengineering, 110, 2395–2404.
  3. Dong, Hong-Wei, J. Bao, Dewey D. Y. Ryu, J. Zhong, 2011. Design and construction of improved new vectors for Zymomonas mobilis recombinants. Biotechnology and Bioengineering, 108, 1616 – 1627.
  4. Liu, Changjun, H. Dong, J. Zhong, Dewey D. Y. Ryu, J. Bao, 2010. Sorbitol production using recombinant Zymomonas mobilis strain. J. of Biotchnology, 148, 105 – 112.
2005-2009
  1. Xi Chen, Zihui Li, Xiaoxi Zhang, Fengxian Hu, Dewey D. Y. Ryu,and Jie Bao, 2009. Screening of Oleaginous Yeast Strains Tolerant to Lignocellulose Degradation Compounds. Appl Biochem Biotechnol (2009) 159:591–604
  2. Kim, Seohyoung, E. Seol, S. M. Raj, S Park, Y. K. Oh, and Dewey D. Y. Ryu, 2008. Various hydrogenases and formate-dependent hydrogen production in C. amalonaticus Y19. International Journal of Hydrogen Energy, 33, 1509–1515
  3. Oh, Y. K., S. Park, E. H. Seol, S. H. Kim, M. S. Kim, J. W. Hwang, and Dewey D. Y. Ryu, 2008. Carbon and energy balances of glucose fermentation with hydrogen-producing bacterium Citrobacter amalonaticus Y19, J Microbiology and Biotechnology, 18, 532 – 538.
  4. Oh Y. K, H. J. Kim, S. Park, M. S. Kim, and Dewey D. Y. Ryu, 2008. Metabolic Flux Analysis for Hydrogen Production Pathway in Citrobacter amalonaticus. International Journal of Hydrogen Energy, 33, 1471-1482.
  5. Bao, Jie and Dewey D Y Ryu, 2007. Total biosynthesis of deoxynucleoside triphosphates (dNTPs) from deoxynucleoside monophosphates (dNMPs) for in vitro DNA synthesis, Biotechnology and Bioengineering, 98, 1-11
  6. Demirev AV, Lee CH, Haishy BP, Nam DH, Ryu Dewey DY. 2006. Substrate specificity of adenylation domains in non-ribosomal peptide synthetase modules in cpbI and cpbK genes from Lysobacter lactamgenus, FEMS Microbiology Letters, 255, 121-128.
  7. Bao, Jie and Dewey D. Y. Ryu, 2006. Cloning of Deoxynucleoside Monophosphate Kinase Genes and Biosynthesis of Deoxynucleoside Diphosphates, Biotechnology and Bioengineering, 93, 572-580
  8. Bao, Jie and Dewey D. Y. Ryu, 2005. Biosynthesis of Deoxynucleoside Triphosphates, dATP and dGTP: Reaction Mechanism and Kinetics, Biotechnology and Bioengineering, 89, 485-491.
  9. Uhm,Tai-Boong, Tao Li, Gukhoon Chung, J. Bao, and Dewey D. Y. Ryu, 2005. Analysis of phospholipase D gene from Streptoverticillium reticulum and the effect of biochemical properties of substrate on phospholipase D activity. Enzyme and Microbial Technology, 37, 641-647
  10. Bao, J., G. A. Bruque, Dewey D. Y. Ryu, 2005. Biosynthesis of deoxynucleoside triphosphates, dCTP and dTTP: reaction mechanism and kinetics. Enzyme and Microbial Technology, 36, 350-356
2000-2004
  1. Boonyaratanakornkit, J., Alex Chew, Dewey D. Y. Ryu, David G. Greenhalgh, Kiho Cho, 2004. Murine endogenous retroviruses and their transcriptional potentials. Mammalian Genome. 15, 914-923
  2. Park, Chan B., Dewey D. Y. Ryu, Sun Bok Lee, 2003. Inhibitory effect of L-pyroglutamate on extremophiles: correlation with growth temperature and pH. Federation of European Microbiological Societies, Microbiology Letters, 221, 187 – 190.
  3. Sohn, Young-sun, D. H. Nam, Dewey D. Y. Ryu. 2001. Biosynthetic pathway of Cephabacins in Lysobacter lactamgenus: Molecular and biochemical characterization of the upstream region of the gene clusters for engineering of novel antibiotics. Metabolic Engineering, 3, 380 – 392.
  4. Park, Chan B., Sun Bok Lee, Dewey D. Y. Ryu, 2001. L-Pyroglutamate spontaneously formed from L-glutamate inhibits growth of the hyperthermophilic archaeon Sulfolobus solfataricus. Applied and Environmental Microbiology, 67, 3650-3654.
  5. Yang, J., H. A. Kang, S. M. Ko, S. K. Chae, Dewey D. Y. Ryu, Jeong-Yoon Kim, 2001. Cloning of the Aspergillus niger pmrA gene, a homologue of yeast PMR1, and characterization of a pmrA null mutant. Federation of European Microbiological Societies, Microbiology Letters. 199, 97 – 102.
  6. Nam, D. H., Y. W. Ryu, and Dewey D. Y. Ryu, 2001. pH controlled synthesis of cephalexin by purified Acetobactor turbidans ampicillin acylase, Journal of Microbiology and Biotechnology, 11, 329 – 332
  7. Li, T., Henry Yeh, Ji-Hyeon Kim, Dewey D. Y. Ryu, 2001. Performance of Batch Membrane Reactor: Glycerol 3-Phosphate Synthesis Coupled with ATP Regeneration. Biotechnology and Bioengineering, 74, 327-334.
  8. Nam, D. H., S. K. Lim, M. H. Chung, E. S. Lee, Y. S. Sohn, and Dewey D. Y. Ryu, 2001. Membrane transporter genes in cephabacin biosynthetic gene cluster of Lysobacter Lactamgenus. J. Microbiol. Biotechnology, 11, 153 -159
  9. Kim, J. W., T. J. Park, Dewey D. Y. Ryu, and Jeong-Yoon Kim, 2000. High cell density culture of Yarrowia lipolytica using a one-step feeding process. Biotechnology Progress, 16, 657 – 660.
  10. Ryu, Dewey D. Y. and D. H. Nam, 2000. Recent Progress in Biomolecular Engineering, Biotechnology Progress, 16, 2 – 16.
  11. Park, C. B., S. B. Lee and Dewey. D. Y. Ryu. 2000. Penicillin acylase-catalyzed synthesis of cefazolin in water-solvent mixture: Enhancement effect of ethyl acetate and carbon tetrachloride on the synthetic yield. J. Molecular Catalysis B: Enzymatic, 9, 275 – 281
  12. Park, C. S., C. C. Chang, Dewey D. Y. Ryu, and J. Y. Kim. 2000. Expression and high level secretion of Trichoderma reesei Endogluconase I in Yarrowia lipolytica. Applied Biochemistry and Biotechnology, 87, 1 – 15.
1995-1999
  1. Kim, J. Y. and Dewey D. Y. Ryu. 1999. Physiological and environmental effects on metabolic flux change caused by heterologous gene expression in Escherichia coli, Biotechnology Bioprocess Eng. 4, 170 – 175
  2. Kang, H. A., J. Y. Kim, S. M. Ko, C. S. Park, Dewey D. Y. Ryu, J. H. Sohn, E. S. Choi, and S. K. Rhee. 1998. Cloning and Characterization of the Hansenula polymorpha Homologue of the Saccharomyces cerevisiae PMR1 gene. Yeast 14, 1233 – 1240.
  3. Chang, C. C. and Dewey D. Y. Ryu. 1998. Medium design for recombinant fermentation. In Nutritional Requirements of Commercially Important Microorganisms. T. Nagodawithana and R. Reed (Eds.) Esteekay Associates, Milwaukee, WI, pp. 68-89.
  4. Chang, C. C., C. S. Park, and Dewey D. Y. Ryu. 1998. Improvement of heterologous protein productivity through a selected bioprocess strategy and medium design: A case study for recombinant Yarrowia lipolytica fermentation. Appl. Biochem. Biotechnology, 74, 173 – 189.
  5. Sohn, Y. S., Park, C. S., and Dewey D. Y. Ryu. 1998. Disruption of PMR1 encoding a Ca2+-ATPase in Yarrowia lipolytica, affects secretion and processing of homologous and heterologous proteins. J. Bacteriology. 180, 6736 – 6742.
  6. Chang, C. C., Dewey D. Y. Ryu, C. S. Park, J. Y. Kim, and D. M. Ogrydziak. 1998. Recombinant bioprocess optimization for heterologous protein production using two-stage, cyclic fed-batch culture. Applied Microbiol and Biotechnol, 49, 531-537.
  7. Chang, C. C., Dewey D. Y. Ryu, C. S. Park, and J. Y. Kim. 1998. Improvement of heterologous protein productivity using recombinant Yarrowia lipolytica and cyclic fed-batch process strategy. Biotechnology and Bioengineering, 59, 379-385.
  8. Park, C. S., Y. S. Sohn, C. Crispino, C. C. Chang and Dewey D. Y. Ryu. 1998. Isolation of oversecreting mutant strain of yeast, Yarrowia lipolytica, for production of heterologous proteins. J. Ferment. Bioeng, 85, 137-141.
  9. Park, C. S., and Dewey D. Y. Ryu. 1998. Molecular cloning of YSC1, a S. Cerevisiae PMR1 homologue, encoding a novel P-type Ca2+-ATPase in Yarrowia lipolytica. Gene. 206, 107-116.
  10. Nam, M. H., Dewey D. Y. Ryu, B. R. Thomas, and R. Rodriguez. 1997. Expression and secretion of fusion protein (GUS) in the suspension culture of transgenic 3DG rice cell line: Effects of osmotic pressure, buffering capacity of pH and cell aggregation on GUS expression. J. Crop Science, 39: 9 -14.
  11. Nam, M. H., Dewey D. Y. Ryu. 1997. Expression and secretion of fusion protein (GUS) in the suspension culture of transgenic 3DG rice cell line: Effect of cell growth, sugar and pH in medium on GUS expression. J. Crop Science. 39: 1-7.
  12. Park, C. S., C. C. Chang, J. Y. Kim, D. M. Ogrydziak, and Dewey D. Y. Ryu, 1997. Expression, secretion, and processing of rice a-amylase in the Yarrowia lipolytica, J. Biol. Chem. 272 (11): 6876-6881.
  13. Chang, C. C., Dewey D. Y. Ryu, C. S. Park, and J. Y. Kim. 1997. Enhancement of rice a-amylase production in recombinant Yarrowia lipolytica. J. Fermentation and Bioengineering. 84: 421-427
  14. Kim, Jeong-Yoon, Dewey. D. Y. Ryu. 1997. Productivity improvement of a recombinant fermentation through decrease of growth rate differentials. J. Fermentation & Bioengineering. Vol. 83, No. 2, 168-172.
  15. Joo, Hyun, Young Je Yoo, and Dewey D. Y. Ryu. 1996. A biosensor stabilized by polyethylene glycol for the monitoring of hydrogen peroxide in organic solvent media. Enzyme and Microbial Technology, 19: 50-56.
  16. Park, S. H. and Dewey D. Y. Ryu. 1996. Monoclonal antibody refolding and assembly: Protein disulfide isomerase reaction kinetics. Biotechnology and Bioprocess Engineering 1(1): 13-17.
  17. Kim, Jeong-Yoon, M. H. Woo, and Dewey D. Y. Ryu. 1995. Development of a multicopy integration vector in Yarrowia lipolytica. J. Appl. Microbial. Biotechnology23: 536-43.
  18. Bang, J. H., D. H. Nam, D. O. Kang, J. S. Ahn and Dewey D. Y. Ryu. 1995. Cloning and expression of Kluyveromyces fragilis -Galactosidase gene in Saccharomyces cerevisiae, J. Microbiology and Biotechnology, 5: 6-13.
1990-1994
  1. Hamamci, Haluk and Dewey D. Y. Ryu. 1994. Production of L (+)-lactic acid using immobilized Rhizopus oryzae: Reactor performance based on kinetic model and simulation. Applied Biochemistry and Biotechnology, 44: 125-134.
  2. Park, S. H. and Dewey D. Y. Ryu. 1994. Cell cycle kinetics and monoclonal antibody productivity of hybridoma cells during perfusion culture. Biotechnology and Bioengineering, 44: 361-367.
  3. Ryu, Dewey D. Y., S. H. Park and Y. Shi. 1994. Optimization of monoclonal antibody production: Biomolecular and bioprocess engineering approaches. In Better Living through Innovative Biochemical Engineering (W. K. Teo, M. G. S. Yap, and S. K. W. Oh, Eds), Continental Press Pte Ltd., Singapore (1994).
  4. Kim, Jeong-Yoon, Hyun Ah Kang and Dewey D. Y. Ryu. 1993. Effects of the par locus on the growth rate and structural stability of recombinant cells. Biotechnology Progress 9: 548-554.
  5. National Academy of Sciences – National Research Council, Committee on Bioprocess Engineering (Dewey D. Y. Ryu as one of the 13 Committee members). 1992. Putting Biotechnology to Work: Bioprocess Engineering, National Academy of Sciences.
  6. Ryu, Dewey D. Y. and Rabia Ballica. 1993. Tropane alkaloid production from Datura stramonium: an integrated approach to bioprocess optimization of plant cell cultivation. In Dewey D. Y. Ryu and S. Furusaki (Eds.), Advances in Plant Biotechnology Vol. I. Elsevier, New York and Netherlands (1993).
  7. Ballica, Rabia and Dewey D. Y. Ryu. 1993. Effects of rheological properties and mass transfer on plant cell bioreactor performance: production of Tropane alkaloids. Biotechnology and Bioengineering, 42: 1181-1189.
  8. Ryu, Dewey D. Y. and J. Y. Kim. 1993. Bioprocess kinetics and optimization of recombinant fermentation: genetic and engineering approaches. In T. Yoshida and R. D. Tanner (Eds.), Bioproducts and Bioprocesses 2, Springer-Verlag, N.Y., p. 103-111
  9. Hyun, Chang K., Jung H. Kim and Dewey D. Y. Ryu. 1993. Enhancement Effect of Water Activity on Enzymatic Synthesis of Cephalexin. Biotechnology and Bioengineering, 42: 800-806
  10. Srinivasan, Venkatesh and Dewey D. Y. Ryu. 1993. Improvement of Shikonin productivity in Lithspermum erythrorhizon cell culture by alternating carbon and nitrogen feeding strategy. Biotechnology and Bioengineering, 42: 793-799.
  11. Shi, Y., Dewey D. Y. Ryu, and S. H. Park. 1993. Monoclonal antibody productivity and the metabolic pattern of perfusion cultures under varying oxygen tensions. Biotechnology and Bioengineering, 42: 430-439
  12. Shi, Y., Dewey D. Y. Ryu, and R. Ballica. 1993. Rheological properties of mammalian cell culture suspensions: hybridoma and HeLa cell lines. Biotechnology and Bioengineering, 41: 745-754
  13. Ballica, R., Dewey D. Y. Ryu, and C. Kado. 1993. Tropane alkaloid production in Datura stramonium suspension cultures: elicitor and precursor effects. Biotechnology and Bioengineering, 41: 1075-1081
  14. Shi, Y., Dewey D. Y. Ryu, and W.-K. Yuan. 1993. Effects of oxygen and ethanol on recombinant yeast fermentation for hepatitis b virus surface antigen production: modeling and simulation studies. Biotechnology and Bioengineering, 41: 55-66
  15. Ballica, R., Dewey D. Y. Ryu, R. Powell, and D. Owen. 1992. Rheological properties of plant cell suspensions. Biotechnology Progress 8: 413-420
  16. Park, S., and Dewey D. Y. Ryu. 1992. Analysis of plasmid stability by the difference in colony size. J. Ferment. Bioeng, 74(3): 185-188
  17. Kang, K., Dewey D. Y. Ryu, and Y. Shi. 1992. Simulation of heterogeneous interaction between ligand and product biomolecules in affinity chromatography, in AIChE Symposium Series 290, Vol. 88, 12-24.
  18. Dewey D. Y., and J.-Y. Kim. 1992. Optimization of recombinant fermentation processes through the analysis of effects of promoter derepression and metabolic flux change. Proceedings of the 9th International Biotechnology Symposium and Exposition, Crystal City, VA, p. 16-21
  19. Ryu, Dewey D. Y., and Srinivasan, Venkatesh, 1992. Enzyme activity and Shikonin production in Lithospermum erythrorhizon cell cultures. Biotechnology and Bioengineering, 40: 69-74.
  20. Shi, Yuan, Ryu, Dewey D. Y., and Park, Sun Ho, 1992. Performance of mammalian cell culture bioreactor with a new impeller design, Biotechnology and Bioengineering, 40: 260-270
  21. Kang, K., Dewey D. Y. Ryu, W. N. Drohan, and C. L. Orthner. 1992. Effect of matrices on affinity purification of Protein C, Biotechnology and Bioengineering, 39: 1086-1096.
  22. Kim, J. Y. and Dewey D. Y. Ryu. 1991. The effects of plasmid content, transcription efficiency, and translation efficiency on the productivity of a cloned gene protein in E. coli. Biotechnology and Bioengineering, 38, 1271-1279.
  23. Chung, B. W. and Dewey D. Y. Ryu. 1991. Production of gellan gum by Pseudomonas elodea (I) – Estimation of metabolic parameters and rheological properties of culture broth. J. Biotechnology and Bioengineering, 5, 235-240.
  24. Ryu, Dewey D. Y. and J. Y. Kim. 1992. Engineering and genetic approaches to optimization of recombinant fermentation process. In “Biochemical Engineering for 2001” (S. Furusaki, I. Endo, and R. Matsuno, Eds) Springer-Verlag, Tokyo, (1992), pp. 133-137
  25. Hortacsu, A. and Dewey D. Y. Ryu. 1991. Optimization of a two-stage recombinant fermentation process: The dilution rate effect. Biotechnology and Bioengineering, 38: 831-837.
  26. Kang, K. A. and Dewey D. Y. Ryu. 1991. Studies on scale-up parameters of an immunoglobulin separation system using Protein A affinity chromatography. Biotechnology Progress, 7: 205-212.
  27. Ryu, Dewey D. Y., J- Y. Kim and S. B. Lee. 1991. Bioprocess kinetics and modeling of recombinant fermentation. pp. 486-505. In Biotechnology – A Multi-Volume Comprehensive Treatise, H. J. Rehm and G. Reed, Eds, VCH, Weinheim, Germany.
  28. Chillakura, R. A., Dewey D. Y. Ryu and T. Yilma. 1991. Propagation of recombinant Vaccinia virus in HeLa cells: Adsorption kinetics in batch cultures. Biotechnology Progress, 7: 85-92.
  29. Park, S. H., Dewey D. Y. Ryu, and S. B. Lee. 1991. Determination of kinetic parameters related to the plasmid instability: For the recombinant fermentation under repressed condition. Biotechnology and Bioengineering, 37: 404-414.
  30. Kakizono, T. and Dewey D. Y. Ryu. 1990. Penicillin biosynthesis and isopenicillin N synthetase activity in Lysobacter Lactamgenus IF014288. Annals of the New York Academy of Sciences vol. 613, Enzyme Engineering 10: 207-215
  31. Kang, K, A. and Dewey D. Y. Ryu. 1990. Membrane resistance to oxygen transport inside hybridoma cells in suspension culture. In Oxygen Transport to Tissue XII, J. Piper et al., Eds, Plenum Press, New York. pp. 35-43.
  32. Hortacsu, A. and Dewey D. Y. Ryu. 1990. Optimal temperature control policy for a two-stage recombinant fermentation process. Biotechnology Progress 6: 403-407.
  33. Kim, K. S, H. S. Pai, S. Y. Lee and Dewey D. Y. Ryu. 1990. Effect of intercalating dyes on the production of antibiotics by Micromonospora rosaria and Micromonospora purpurea. Enzyme and Microbial Technology, 12: 564-570.
  34. Park, S., Dewey D. Y. Ryu and Jeong Yoon Kim. 1990. Effect of cell growth rate on the performance of a two-stage continuous culture system in a recombinant Escherichia coli fermentation. Biotechnology and Bioengineering, 36: 493-505.
  35. Park, S. and Dewey D. Y. Ryu. 1990. Effect of operating parameters on specific production rate of a cloned-gene product and performance of recombinant fermentation process. Biotechnology and Bioengineering, 35, 387-295
  36. Dewey D. Y. Ryu, Romani, R. J., and S. O. Lee. 1990. Determination of growth rates for plant cell cultures: Comparative studies. Biotechnology and Bioengineering, 35, 305-311.
1985-1989
  1. Kang, K. A. and Dewey D. Y. Ryu. 1989. Structured modeling and simulation of oxygen transport to hybridoma cell in a suspension culture: Theoretical analysis. pp. 197-206 In Proceedings of the 16th Annual Meeting of the International Society on Oxygen Transport to Tissue, Plenum Press, New York.
  2. Ryu, Dewey D. Y. and S. B. Lee. 1989. Recombinant bioprocess technology: Is it different from traditional microbial culture process technology. pp. 347-358 In Bioproducts and Bioprocesses A. Fiechter, H. Okada and R. D. Tanner (Eds.) Springer-Verlag, New York
  3. Ryu, Dewey D. Y. 1989. Enhancement of nutritional value of cellulose feed resources by pretreatment and bioconversion. pp. 223-246. In Proceedings of the Expert Consultation on the Application of Biotechnology in Livestock Production and Health in Developing Countries, An FAO/Plenum Publication, Plenum Publishing Corp, New York.
  4. Uematsu, K., D. Fong, and Dewey D. Y. Ryu. 1988. Development of continuous fermentation using immobilized yeast cells for wine cooler process development. Applied Biochemistry and Biotechnology, 19: 177-188.
  5. Nam, D. H. and Dewey D. Y. Ryu. 1988. Molecular cloning of the gene for a-acylamino-b-lactam acylhydrolase from Acetobacter turbidans by immunochemical detection method. J. of Applied Microbiology and Bioengineering, 5(16): 363-368.
  6. Hammamci, H. and Dewey D. Y. Ryu. 1988. Effect of oxygen on ethanol fermentation in packed-bed taper column reactor. Applied Microbiology and Biotechnology, 28: 515-519.
  7. Takamatsu, S. and Dewey D. Y. Ryu. 1988. New recirculating bioreactor-separator combination system for continuous bioconversion and separation of products. Enzyme and Microbial Technology, 10: 593-600.
  8. Yang, C-Y., Y. W. Ryu, and Dewey D. Y. Ryu. 1988. Preparation and characterization of monoclonal antibodies to cephalexin-synthesizing enzyme from Acetobacter turbidans. Hybridoma 7: 4.
  9. Takamatsu, S. and Dewey D. Y. Ryu. 1988. Recirculating bioreactor-separator system for simultaneous biotransformation and recovery of product: Immobilized aspartate b-decarboxylase reactor system. Biotechnology and Bioengineering, 32: 184-191.
  10. Ryu, Yeon Woo and Dewey D. Y. Ryu. 1988. Semisynthetic b-lactam antibiotic synthesizing enzyme from Acetobacter turbidans: Catalytic properties. Enzyme and Microbial Technology, 10: 239-245.
  11. Lee, S. B., Dewey D. Y. Ryu., R. Siegel, and S. H. Park. 1988. Performance of recombinant fermentation and evaluation of gene expression efficiency for gene product in a two-stage continuous culture system. Biotechnology and Bioengineering, 31: 805-820.
  12. Ryu, Dewey D. Y. and Sun Bok Lee. 1987. Development and optimization of recombinant fermentation processes. In Horizons of Biochemical Engineering, University of Tokyo Press, (S. Aiba, ed.), pp. 97-124.
  13. Ryu, Dewey D. Y. and S. Park. 1987. Genetically structured kinetic model for gene product and application of gene switching system to fermentation process control. Annals of New York Academy of Sciences 506: 396-505.
  14. Kling, S. H., C. Carvolho Neta, M. A. Ferrara, J. C. R. Torres, D. B. Bagalhaes, and Dewey D. Y. Ryu. 1987. Enhancement of enzymatic hydrolysis of sugar cane bagasse by steam explosion pretreatment. Biotechnology and Bioengineering, 29: 1035-1039.
  15. Hammamci, H. and Dewey D. Y. Ryu. 1987. Performance of tapered column packed-bed reactor for ethanol production. Biotechnology and Bioengineering, 29: 994-1002.
  16. Ryu, Y. W. and Dewey D. Y. Ryu. 1987. Semisynthetic b-lactam antibiotics synthesizing enzyme from Acetobacter turbidans: Purification and properties. Enzyme and Microbial Technology, 9: 339-344.
  17. Ryu, Dewey D. Y. and S. B. Lee. 1986. Enzymatic hydrolysis of cellulose: Determination of kinetic parameters. Chemical Engineering Communication 45:119-134.
  18. Ryu, Dewey D. Y. and R. Siegel. 1986. Scale-up of fermentation processes using recombinant microorganisms. Annals of the New York Academy of Sciences, Biochemical Engineering, IV 469: 73-82.
  19. Farahnak, F., T. Seki, Dewey D. Y. Ryu, and D. Ogrydziak. 1986. Construction of lactose assimilating and high-ethanol-producing yeast by protoplast fusion. Applied and Environmental Microbiology, 51 (2): 362-367.
  20. Kim, J. H., M. Hosobuchi, M. Kishimoto, T. Seki, T. Yoshida, H. Taguchi and Dewey D. Y. Ryu. 1985. Cellulase production by a solid state culture system. Biotechnology and Bioengineering, 27: 1445-1450.
  21. McCord, J. D and Dewey D. Y. Ryu. 1985. Development of malolactic fermentation process using immobilized whole cells and enzymes. American Journal of Enology and Viticulture, 36(3): 214-218.
  22. Nam, D. H., C. Kim, and Dewey D. Y. Ryu. 1985. Reaction kinetics of cephalexin synthesizing enzyme from Xanthomonas citri. Biotechnology and Bioengineering, 27: 953-906.
  23. Nam, D. H. and Dewey D. Y. Ryu. 1985. Relationship between butirosin biosynthesis and sporulation in Bacillus circulans. Antimicrobial Agents and Chemotherapy 27(5): 798-801.
  24. Seki, T., E. Choi, and Dewey D. Y. Ryu. 1985. Construction of killer wine yeast strain. Applied and Environmental Microbiology, 49(5): 1211-1215.
  25. Siegel, R., and Dewey D. Y. Ryu. 1985. Kinetic study of instability of recombinant plasmid pPLc23trpA1 in E. coli using two-stage continuous culture system. Biotechnology and Bioengineering, 27: 28-33.
1980-1984
  1. Nam, D. H., C. S. Lee, and Dewey D. Y. Ryu. 1984. An improved synthesis of Captopril. Journal of Pharmaceutical Sci. 73(12): 1843-1844.
  2. Ryu, Dewey D. Y. 1984. Future impact of biotechnology on the wine industry. Proceedings of Wine Industry Technical Symposium, Wine Institute, San Francisco, pp. 61-68.
  3. Ryu, Dewey D. Y., S. H. Park, and Y. Shi. 1984. Optimization of monoclonal antibody production: Biomolecular and bioprocess engineering approaches. Proceedings of the 3rd Asia-Pacific Biochemical Engineering Conference, (W. K. Teo, M. G. S. Yap, S. K. W. Oh, Eds), Singapore, pp. 494-498.
  4. Ryu, Dewey D. Y. and R. Siegel. 1984. Genetic stability of expression vector plasmid from recombinant organisms. Proceedings of the Third European Congress on Biotechnology, Vol. 3, pp. 317-330.
  5. Nam, D. H. and Dewey D. Y. Ryu. 1984. Enzymatic synthesis of phenoxymethylpenicillin using Erwinia aroideae enzyme. J Antibiot. 37(10):1217-23.
  6. Nam, D. H. and Dewey D. Y. Ryu. 1984. Synthesis of Phenoxymethylpenicillin using Erwinia aroideae enzyme. Annals of the New York Academy of Sciences 434(1): 210-213.
  7. Ryu, Dewey D. Y., C. Kim, and M. Mandels. 1984. Competitive adsorption of cellulase components and its significance in synergistic mechanism. Biotechnology and Bioengineering, 26: 488-496.
  8. Ryu, Dewey D. Y., H. S. Kim, and H. Taguchi. 1984. Intrinsic fermentation kinetic parameters of immobilized yeast cells. Journal of Bioscience and Bioengineering, 62(3): 255-261.
  9. Kim, S. H. and Dewey D. Y. Ryu. 1984. Instability kinetics of trp operon plasmid Co1E1-trp in recombinant Escherichia coli MV12 (PVH5) and MV12trpR (pVH5). Biotechnology and Bioengineering, 25, 497-502.
  10. Ryu, Dewey D. Y., Y. J. Kim, and J. H. Kim. 1984. Effect of air supplement on the performance of continuous ethanol fermentation system. Biotechnology and Bioengineering, 25, 12-16.
  11. McCord, J. D., E. Trousdale, and Dewey D. Y. Ryu. 1984. An improved sample preparation procedure for the analysis of major organic components in grape must and wine by high performance liquid chromatography. American Journal of Enology and Viticulture, 35(35): 18-29.
  12. Park, W. S. and Dewey D. Y. Ryu. 1983. Cellulolytic activities of Clostridium thermocellum and its carbohydrate metabolism. Journal of Bioscience and Bioengineering, 61(6), 563-571.
  13. Kim, K. S., N. Y. Cho, H. S. Pai, and Dewey D. Y. Ryu. 1983. Mutagenesis of Micromonospora rosaria using protoplast and mycelial fragments. Applied and Environmental Microbiology, 46: 689-693.
  14. Lee, J. Y., J. H. Kim, and Dewey D. Y. Ryu. 1983. Cellulase production by immobilized mycelia of Trichoderma reesei QM 9414. J. of Applied Microbiology and Bioengineering, 11(2), 105-110.
  15. Kim, J. H., D. H. Nam, and Dewey D. Y. Ryu. 1983. Cephalexin synthesis using immobilized Xanthomonas citri cells. Applied Biochemistry and Biotechnology, 8: 195-202.
  16. Nam, D. H., H. S. Sohn, and Dewey D. Y. Ryu. 1983. Enzymatic synthesis of cephaloglycin. Bulletin of Korean Chemical Society, 4(2), 72-75.
  17. Kim, K. S., Dewey D. Y. Ryu, and S. Y. Lee. 1983. Application of protoplast fusion technique to genetic recombination of M. rosaria. Enzyme and Microbial Technology, 5, 273-280.
  18. Ryu, Dewey D. Y., K. S. Kim, N. Y. Cho, and H. S. Pai. 1983. Genetic recombination in M. rosaria by protoplast fusion. Applied and Environmental Microbiology, 45: 1854-1858.
  19. Ryu, Dewey D. Y. and D. H. Nam. 1983. Differential analysis of amikacin and butirosin. Archives of Pharmaceutica, 5, 87-91.
  20. Ryu, Dewey D. Y. and D. H. Nam. 1983. Enzymatic synthesis of semisynthetic beta-lactam antibiotics. Proceedings of Special Symposium on Enzyme Engineering – Japan, Vol. 9, pp. 30-62.
  21. Ryu, Dewey D. Y., J. W. Kwak, and K. S. Kim. 1983. Production of rosamicin: Improvement of synthetic medium. Applied and Environmental Microbiology, 45: 340-353.
  22. Ryu, Dewey D. Y., T. H. Lee, and J. C. Ahn. 1984. Performance of an immobilized yeast reactor system for ethanol production. Enzyme and Microbial Technology, 5: 41-45.
  23. S. B. Lee, Dewey D. Y. Ryu, I. H. Kim, and H. Taguchi. 1983. Structural properties of cellulose and cellulase reaction mechanism. Biotechnology and Bioengineering, 25: 33-51.
  24. Ryu, Dewey D. Y., S. H. Kim, Y. C. Choi, and S. Y. Lee. 1982. Instability of Trp operon recombinant plasmids in E. coli. Biochemical Journal, 15(4): 305-314.
  25. Kim, H. S. and Dewey D. Y. Ryu. 1982. Continuous glutamate production process using immobilized whole-cell system. Biotechnology and Bioengineering, 24: 2167-2174.
  26. Kim, C., H. S. Kim, and Dewey D. Y. Ryu. 1982. Optimization of operating temperature for continuous glucose isomerase reactor system. Biotechnology and Bioengineering, 24: 1889-1896.
  27. Lee, Sun Bok, H. S. Shin, Dewey D. Y. Ryu, and M. Mandels. 1982. Adsorption of cellulase on cellulose: Effect of physicochemical properties of cellulose on adsorption and rate of hydrolysis. Biotechnology and Bioengineering, 24: 2137-2153.
  28. Ryu, Dewey D. Y. and S. B. Lee. 1982. Enzymatic hydrolysis of cellulose: Effects of structural properties of cellulose on hydrolysis kinetics. Enzyme Engineering 6: 325-334.
  29. Yoon, S. H., J. W. Rhim, S. Y. Choi, Dewey D. Y. Ryu, and J. S. Rhee. 1982. Effect of carbon and nitrogen sources on lipid production of Rhodotorula gracillis. Journal of Bioscience and Bioengineering, 60(3): 243-246.
  30. Choi, S. Y., Dewey D. Y. Ryu, and J. S. Rhee. 1982. Production of microbial lipids: Effect of growth rate and oxygen on lipid synthesis and fatty acid composition of Rhodotorula gracillis. Biotechnology and Bioengineering, 24: 1165-1172.
  31. Ryu, Dewey D. Y., S. B. Lee, T. Tassinari, and C. Macy. 1982. Effect of compression milling on cellulose structure and on enzymatic hydrolysis kinetics. Biotechnology and Bioengineering, 24: 1047-1067.
  32. Kim, M. H., S. B. Lee, Dewey D. Y. Ryu, and E. T. Reese. 1982. Surface deactivation of cellulase and its prevention. Enzyme and Microbial Technology, 4: 99-103.
  33. Lee, S. B. and Dewey D. Y. Ryu. 1982. Reaction kinetics and mechanism of penicillin amidase: A comparative study by computer simulation. Enzyme and Microbial Technology, 4: 35-38.
  34. Ryu, Dewey D. Y., K. C. Chien, T. Waki, K. Suga, and H. Taguchi. 1981. Optimal control of an immobilized enzyme reaction. Journal of Bioscience and Bioengineering, 59: 357-365.
  35. Park, S. H., S. B. Lee, and Dewey D. Y. Ryu. 1981. Design of non-uniformly distributed biocatalyst. Biotechnology and Bioengineering, 23: 2591-2600.
  36. Gallo, B., T. Tassinari, L. Spano, and Dewey D. Y. Ryu. 1981. Cellulase process improvements and its economics. pp. 281-288. Advances in Biotechnology, Vol. 3, Pergamon Press
  37. Park, S. H, S. B. Lee, and Dewey D. Y. Ryu. 1981. Optimization of operating temperature for continuous glucose isomerase reactor system. Biotechnology and Bioengineering, 23: 1237-1257.
  38. Ryu, D. D. Y, and L. Spano. 1981. Advances in enzymatic hydrolysis of cellulose. pp. 164-167. Proceedings of Bioenergy World Congress
  39. Choi, W. G., S. B. Lee, and Dewey D. Y. Ryu. 1981. Cephalexin synthesis by partially purified and immobilized enzyme. Biotechnology and Bioengineering, 23: 361-371.
  40. Ryu, Dewey D. Y. 1980. Economic assessment of cellulase technology for production of fuel from biomass, 211-215. In Microbial Utilization of Renewable Resources, International Center of Cooperative Research and Development in Microbial Engineering, H. Taguchi (Ed.), Vol. 1, Osaka University, Japan
  41. Y. M. Koo, Ryu, D. D. Y, , and Y. G. Kim. 1980. Production of sorbose using a two-stage continuous bio-reactor system; Optimization of operating condition. Korean Institute of Chemical Engineers Journal 18: 333-342.
  42. Kim, Y. S. and Dewey D. Y. Ryu. 1980. Ampicillin biosynthesis by immobilized enzyme. Archives of Pharmaceutical Research, 3(1), 7-12.
  43. D. H. Kim, S. B. Lee, and Dewey D. Y. Ryu, 1980. Solvent effect on enzymatic steroid transformation. Archives of Pharmaceutical Research 3: 15.
  44. Paik, S. W. and D. D. Y. Ryu. 1980. Production of fructose corn syrup of glucose isomerase. Kor J Microbiol, 18: 59-55.
  45. Ryu, W. S. and Dewey D. Y. Ryu. 1980. Reaction kinetics and absorption property of low molecular weight endogluconase component of cellulase. Journal of Microbiology and Bioengineering 8(1), 41-46.
  46. Ryu, Dewey D. Y., R. Andreotti, J. Medeiros, and M. Mandels. 1980. Comparative quantitative physiology of high cellulase producing strains of Trichoderma reesei. Enzyme Engineering, 5: 33-40.
  47. Ryu, Dewey D. Y., L. Spano, T. Tassinari, A. Allen, and M. Mandels. 1980. Enzymatic hydrolysis of cellulose to fermentable sugar for production of ethanol, p. 1033. In BIOCON Gasohol Symposium, Lexington, KY
  48. Reese, E. T. and Dewey D. Y. Ryu. 1980. Shear inactivation of cellulase of Trichoderma reesei. Enzyme Microbial Technol. 2: 239-240.
  49. Tassinari, T., C. Macy, L. Spano, and Dewey D. Y. Ryu. 1980. Energy requirements and process design considerations in compression-milling pretreatment of cellulose wastes for enzymatic hydrolysis. Biotechnology and Bioengineering, 22: 1689-1705.
  50. Ryu, D. D. Y and M. Mandels. 1980. Cellulase complex: Biosynthesis and applications. Enzyme and Microbial Technology, 2: 91-102.
  51. Rhee, D. K. S. B. Lee, J. S. Rhee, and Dewey D. Y. Ryu. 1980. Enzymatic biosynthesis of cephalexin. Biotechnology and Bioengineering, 22: 1237-1247.
  52. Lee, S. B. and Dewey D. Y. Ryu. 1980. External diffusion effects on the kinetic constants of immobilized enzyme systems. Journal of Theoretical Biology, 84, 259-279.
  53. Ryu, Dewey D. Y. and K. M. Lee. 1980. Studies on the cephalosporin C biosynthesis by fermentation. Archives of Pharmaceutical Research, 2, 79-83.
  54. Seung, B. L., I. Cho, J. S. Rhee, and Dewey D. Y. Ryu. 1980. Properties of penicillin amidohydrolase immobilized on nylon fiber. Bulletin of the Korean Chemical Society, 1, 10-17.
  55. Ryu, Dewey D. Y. and J. Hospodka. 1980. Quantitative physiology of Penicillium chrysogenum in penicillin fermentation. Biotechnology and Bioengineering, 22, 289-298.
1975-1979
  1. Lee, M. J. and D. D. Y. Ryu. 1979. Production of gentamicin by Micromonospora purpurea: Studies on fermentation variables. Kor Jour. Microbiol. 17(3): 152-159.
  2. Lee, S. B. and D. D. Y. Ryu. 1979. Separation of gentamicin by foaming. Biotechnology and Bioengineering 21(11): 2045-2059.
  3. Choe, T. B. and Dewey D. Y. Ryu. 1979. Continuous cultivation in airlift fermentor for production of single cell protein. J. of Applied Microbiology and Bioengineering, 7(4): 211-216.
  4. Lee, Sun Bok and Dewey D. Y. Ryu. 1979. Determination of kinetic constants in enzyme reactor systems by transformation of variables. Biotechnology and Bioengineering, 21, 2329-2336.
  5. Lee, S. B. and Dewey D. Y. Ryu. 1979. New method of determining kinetic constants for immobilized enzymes in a packed-bed reactor system. Biotechnology and Bioengineering, 21: 1499-1505.
  6. Lee, S. B., S. M. Kim, and Dewey D. Y. Ryu. 1979. Effects of external diffusion and design geometry and the performance of immobilized glucose isomerase reactor system. Biotechnology and Bioengineering, 21: 2023-2043.
  7. Nam, D. H. and Dewey D. Y. Ryu. 1979. Biochemical properties of penicillin amidohydrolase from Micrococcus luteus. Applied and Environmental Microbiology, 38(1): 35-38.
  8. Nam, D. H. and Dewey D. Y. Ryu. 1979. Preparation of 6-aminopenicillanic acid using penicillin amidohydrolase from Micrococcus luteus. Journal of Bioscience and Bioengineering 57(2): 141-145.
  9. Ryu, Dewey D. Y. and M. J. Lee. 1979. Gentamicin fermentation-strain and process improvement. Journal of Microbiology, 17, 152-159.
  10. Ryu, Dewey D. Y., R. Andreotti, M. Mandels, B. Gallo, and E. T. Reese. 1979. Studies on quantitative physiology of Trichoderma reesei with two-stage continuous culture for cellulase production. Biotechnology and Bioengineering, 21: 1887-1903.
  11. Ryu, Dewey D. Y. and C. M. Kim. 1979. Utilization of rice straw for cellulase fermentation. Journal of Microbiology, 16, 141-147.
  12. Kim, J. M, Dewey and D. Y. Ryu. 1978, Studies on cellulase production by Trichoderma ressei (QM 9414). Kor. Jour. Microbiol, 16(4): 141-147
  13. Spano, L., A. Allen, T. Tassinari, M. Mandels, and Dewey D. Y. Ryu. 1978. Reassessment of economics of cellulase process technology for production of ethanol from cellulose. pp. 671-684. Proceedings of the 2nd Annual Symposium on Fuels from Biomass, H. Bungay (Ed)
  14. Gallo, B. J., R. Andreotti, C. Roches, Dewey D. Y. Ryu, and Mary Mandels. 1978. Cellulase production by a new mutant strain of Trichoderma reesei MCG, in Biotechnology and Bioengineering, Symposium No. 8, pp. 89-101 John Wiley & Sons, Inc.
  15. Ryu, Dewey D. Y. and M. Mandels. 1978. Cellulase: biosynthesis and cellulose, p. 25. In Proceedings of the 10th Conference of Foundation for Research Conferences in Chemistry, Japan
  16. Ryu, Dewey D. Y. and K. H. Kim. 1978. Studies on penicillin amidohydrolase fermentation. Journal of Microbiology, 15: 145-153.
  17. Ryu, Dewey D. Y. and J. S. Lee. 1978. Assimilation rates of penicillin fermentation. Journal of Microbiology, 16: 21-99.
  18. Ryu, Dewey D. Y. and S. W. Kim. 1978. Studies on the Production of Chloretracycline (Part I) Effect of minerals on tetracycline fermentation. Journal of Applied Microbiology and Bioengineering, 6: 103-108.
  19. Park, Young Hoon and Dewey D. Y. Ryu. 1978. Two-stage enzyme reactor system for production of 6-aminopenicillanic acid. Journal of Korean Institute of Chemical Engineering, 16(4): 257-266.
  20. Ryu, Dewey D. Y. 1978. Quantitative physiology approach to optimization of fermentation processes. Proceedings of 4th International Congress of Global Impact of Applied Microbiology, pp. 813-821, Part 2, Brazil
  21. Kim, S. M., S. B. Lee, and Dewey D. Y. Ryu. 1978. Effect of design parameter on the performance of immobilized glucose isomerase reactor system. in Georges B. Broun, Georg Manecke, and Lemuel B. Wingard, Jr. (Eds.), Enzyme Engineering, Vol. 4, pp. 101-103, Plenum Publishing Corp., New York
  22. Kim, Kyung-Hoon, Ryu, Dewey D. Y. 1977. Optimization of penicillin amidase production and a simplified enzyme assay method. Kor. Jour. Microbiol, 15(4): 145-153.
  23. Ryu, Dewey D. Y. and K. M. Lee. 1977. Recent advances and trends in antibiotic fermentation technology. Journal of the Pharmaceutical Society, 21(3): 118-134.
  24. Park, Eun Chung and Dewey D. Y. Ryu. 1977. Study of 3-ketosteroid dehydrogenase system using whole-cell enzyme from Arthrobacter simplex. Journal of the Pharmaceutical Society, 21(3): 161-171.
  25. Ryu, Dewey D. Y., B. B. Mukherjee, and B. K. Lee. 1977. Synthesis and biological activity of (2-hydroxy-1-naphthyl)-methylamino-acetamido-epicillin and cephradine, and (2-hydroxy-1-naphthyl)-methylacetamido-6-aminopenicillin, Journal of Antibiotics, 30, 66-70.
  26. Ryu, Dewey D. Y. and J. Y Oldshue. 1977. A reassessment of mixing cost in fermentation processes. Biotechnology and Bioengineering, 19: 621-629.
  27. Ryu, Dewey D. Y. and S. H. Chung. 1977. Performance of the continuous glucose isomerase reactor system for the production of fructose syrup. Biotechnology and Bioengineering, 19: 159-184.
  28. Ryu, Dewey D. Y., E. C. Park, Y. H. Park, and S. H. Chung. 1976. Optimization of immobilized enzyme reactor systems based on enzyme reaction mechanisms and kinetics. In Proceedings of the Fifth International Fermentation Symposium, pp. 277, Berlin, Germany
  29. Kim, J. H. and Dewey D. Y. Ryu. 1976. Optimization of medium and maximization of biomass productivity in production of single-cell protein from methanol. Journal of Bioscience and Bioengineering, 54(6): 427-436.
  30. D.D.Y. Ryu and B.K. Le. 1975. An example of process optimization of enzymatic transformation of steroids. Process Biochem., 15–19
1970-1974
  1. Ryu, Dewey D. Y. 1974. Production of steroid enzymes by a continuous culture, Journal of Applied Microbiology and Bioengineering, 2: 29-35.
  2. Ryu, Dewey D. Y. 1974. Biochemical engineering: trends and recent advances. Part I: Fermentation engineering. Korean Institute of Chemical Engineers Journal, 12: 285-296.
  3. Bowski, L. and Dewey D. Y. Ryu. 1974. Determination of Invertase activity during ultrafiltration. Biotechnology and Bioengineering, 16: 697-699.
  4. Ryu, Dewey D. Y. 1973. Simulation and optimization of enzyme reactor system, Korean Institute of Chemical Engineers Journal, 11: 174-184.
  5. Ryu, Dewey D. Y. and A. E. Humphrey. 1973. Examples of computer-aided fermentation systems. Journal of Applied Chemistry and Biotechnology, 23: 283-295.
  6. Ryu, Dewey D. Y., B. K. Lee, and R. W. Thoma. 1972. Production of 3-keto-steroid-delta 1-dehydrogenase by a two-stage, continuous-culture system. pp. 129-133. In G. Terui (Ed.), Fermentation Technology Today, Proceedings of the Fourth International Fermentation Symposium, Japan.
  7. Ryu, Dewey D. Y., C. F. Bruno, B. K. Lee, and K. Venkatasubramanian. 1972. Microbial penicillin amidohydrolase and the performance of a continuous enzyme reactor system. pp. 307-314. In G. Terui (Ed.), Fermentation Technology Today, Proceedings of the Fourth International Fermentation Symposium, Japan.
  8. Bowski, L., P. M. Shah, Dewey D. Y. Ryu, and W. R. Vieth. 1972. Process simulation of sucrose hydrolysis on invertase in a continuous flow stirred tank/ultra-filtration reaction system, pp. 229-239. In Biotechnology and Bioengineering, Symposium, No. 3.
  9. Ryu, Dewey D. Y and A. E. Humphrey, 1971. A reassessment of oxygen transfer rate in antibiotic fermentation. Journal of Bioscience and Bioengineering, 50: 424-431.
  10. Lee, B. K., W. E. Brown, Dewey D. Y. Ryu, and R. W. Thoma. 1971. Sequential 11 a-hydroxylation 1-dehydrogenation of 16 a-hydroxycortisone. Biotechnology and Bioengineering, 13: 503-515.
  11. Bowski, L., R. Saini, B., Dewey D. Y. Ryu, and W. R. Vieth. 1971. Kinetic modeling of the hydrolysis of sucrose by invertase. Biotechnology and Bioengineering, 13: 641-656.
  12. Ryu, Dewey D. Y., A. E. Humphrey, and R. Fuchs. 1971. Effect of surface aeration on scale-up producers for fermentation processes. Industrial and Engineering Chemistry – Process Design and Development, 10: 1990-1996
  13. Ryu, Dewey D. Y., A. E. Humphrey, B. K. Lee, and R. W. Thoma. 1971. Semi-continuous production of 3-ketosteroid-D-1-dehydrogenase for steroid transformations at high substrate concentrations, American Institute of Chemical Engineers, Chemical Engineering Progress Symposium Series 67: 80-84.
  14. Lee, B. K., Dewey D. Y. Ryu, H. Jacobsen, and W. E. Brown. 1970. Influence of the mode of addition of steroid substrate on the conversion efficiency of steroids. Journal of General Microbiology, 61: 97-105.
1965-1969
  1. Lee, B. K., Dewey D. Y. Ryu, R. W. Thoma, and W. E. Brown. 1969. Induction and repression of steroid hydroxylases and dehydrogenases in mixed culture fermentation. Journal of General Microbiology 55: 145-153.
  2. Ryu, Dewey D. Y., B. K. Lee, R. W. Thoma, and W. E. Brown. 1969. Transformation of steroids by mixing cultures. Biotechnology and Bioengineering, 11: 1255-1270.
  3. Ryu, Dewey D. Y. and R. I. Mateles. 1968. Transient response of continuous culture to changes in temperature. Biotechnology and Bioengineering, 10: 385-397.
  4. Mateles, R. I., Dewey D. Y. Ryu, and T. Yasuda. 1965. Measurement of unsteady-state growth rates of microorganisms. Nature, 208: 263-265.

Patents

  1. Dewey Ryu and Jie Bao. Total biosynthesis of deoxynucleoside triphosphates (dNTPs) from deoxynucleoside monophosphates (dNMPs) for in vitro DNA synthesis, US Patent Applied(12/2008)
  2. Ryu, Dewey D. Y. Reacting Materials in Bioreactor System. U.S. Patent No. 4,983,517, (1991)
  3. Ryu, Dewey D. Y. and H. S. Kim. Glutamate fermentation process using immobilized cells. Korean Patent No. 17321 (1984)
  4. Ryu, Dewey D. Y. and K. S. Kim. Production of rosamicin using recombinant organisms. Korean Patent No 17413 (1984)
  5. Ryu, Dewey D. Y. Enzymatic biosynthesis of cephalexin antibiotics using immobilized enzymes. Korean Patent No, 9,942 (1980)
  6. Ryu, Dewey D. Y. New process for separation and purification of aminoglucoside antibiotics. Korean Patent No 6,238 (1979)
  7. Ryu, Dewey D. Y. New process for gentamicin production, Korean Patent No 5,665 (1978)
  8. Ryu, Dewey D. Y. d-1-dehydrogenation of steroid by immobilized enzyme. Korean Patent No 5,325. (1977)
  9. Ryu, Dewey D. Y. Production of 6-aminopenicillanic acid using soluble and immobilized enzymes. Korean Patent No 5,326. (1977)
  10. Ryu, Dewey D. Y., New dexacillin derivatives and preparation methods. Korean Patent No 4,987 (1976)
  11. Ryu, Dewey D. Y. Semicontinuous processes for penicillin production. Korean Patent No. 4,610 (1975)
  12. Ryu, Dewey D. Y., Substituted aminoacetamido penicillins. USA Patent No. 3,905,955 (1975)
  13. Ryu, Dewey D. Y. 1-amino-substituted 1-cycloalkane derivatives of 6-APA. USA Patent No. 3,904,604 (1975)
  14. Ryu, Dewey D. Y. 1-Amino-substituted 1-cycloalkane derivatives of 7-amino-cephaloporanic acid and 7-amino-desacetoxycephalosporanic acid. USA Patent No. 3,887,546 (1975)
  15. Ryu, Dewey D. Y. 1-Amino-substituted 1-cycloalkane derivatives of 6-amino-penicillanic acid. USA Patent No. 3,821,198 (1974)
  16. Ryu, Dewey D. Y. New cephalosporin derivatives and methods, USA Patent No. 3,813,110 (1974)
  17. Ryu, Dewey D. Y. Continuous process for preparing 3 ketosteroid-1-dehydrogenase. USA Patent No. 3,734,830 (1973)
  18. Ryu, Dewey D. Y. Process for preparing 1-dehydro steroids. USA. Patent No. 3,585,110 (1971)
Books edited and Book Chapters Contribution
  1. Biotechnology Symposium Series, Vol. I, (eds. Ryu, Dewey D. Y., S. S. Lee, & M. H. Han, Eds), ISBN 1-889495-00-X, KOFST, KSEA and Mark IV Printing, Washington, D. C., 1996
  2. Advances in Plant Biotechnology (eds. Dewey D. Y. Ryu and S. Furusaki) as Advances in Plant Science Series Vol. 4, Elsevier, Amsterdam, 1994
  3. Putting Biotechnology to Work: Bioprocess Engineering, (eds. Members of the Committee on Bioprocess Engineering), National Research Council, National Academy of Science, Washington, D. C., 1992
  4. 9th International Biotechnology Symposium (eds. M R Ladisch and A Bose), American Chemical Society Publication, Washington, D.C., 1992
    Contribution: Optimization of Recombinant Fermentation Process through the Analysis of Effects of Promoter Derepression and Metabolic Flux Change
  5. Horizons of Biochemical Engineering, University of Tokyo Press (ed. S. Aiba) 1987. Contribution: Development and optimization of recombinant fermentation processes, pp. 97 – 124
  6. Third Asia-Pacific Biochemical Engineering Conference (eds. W. K. Teo, M. G. S. Yap, S. K. W. Oh), Singapore, 1984. Contribution: Optimization of monoclonal antibody production – Biomolecular and bioprocess engineering approaches, pp. 494 – 498
  7. Third European Congress on Biotechnology Series, Vol. 3, 1984, Contribution: Genetic stability of expression vector plasmid from recombinant organism pp. 317-330.
  8. Advances in Enzyme Engineering as special conference of Japanese Enzyme Engineering Society, vol. 9, (ed. I. Chibata) Japan, 1983, Contribution: Enzymatic synthesis of semisynthetic beta-lactam antibiotics, pp. 30-62
  9. Microbial Utilization of Renewable Resources (ed. H. Taguchi), International Center for Biotechnology, Series Vol. 1, Osaka University, Japan, 1980. Contribution: Economic assessment of cellulase technology for production of fuel from biomass, pp. 211-215
  10. Fourth International Congress of Global Impact of Applied Microbiology, Brazil, 1978, Contribution: Quantitative physiology approach to optimization of fermentation processes, pp. 813-821