UNIVERSITY OF HAWAIIAssociate Professor, Hawaii Natural Energy Institute, Aug. 2002 - PresentAssociate Professor, Department of Ocean and Resources Engineering, Sept. 2001 - July 2002 Graduate Faculty, Department of Molecular Bioscience and Bioengineering, Oct. 2001- Present OTHER PROFESSIONAL EXPERIENCEAssistant Professor, Department of Chemical Engineering, Hong Kong University of Science and Technology, Sept. 1994 - Aug. 2001Research Associate, Department of Civil and Environmental Engineering, University of Windsor (Canada), Apr. 1993 - Aug. 1994 Postdoctoral Fellow, Science Council of British Columbia/Pacific Fermentation Industries Ltd. Sept. 1991- Feb. 1993. EDUCATIONPh.D., Biochemical Engineering, University of British Columbia, 1991M.S., Chemical Engineering, Zhejiang University, 1985 B.Eng., Chemical Engineering, Zhejiang University of Technology, 1982 COURSES TAUGHTOcean and Resources Engineering 620: Marine Bioprocess EngineeringBioengineering 431: Environmental Biotechnology Bioengineering 634: Biological treatment Bioengineering 413: Transport Phenomena FIELDS OF EXPERTISEBiopolymers and bioplastics … bioethanol and biofuels … microbial metabolism and fermentation … enzymatic catalysis and enzyme-polymer conjugation … bioreactor engineering and bioprocessing, process simulation and life cycle assessementINVENTIONSGreen technology to produce biodegradable thermoplastics and elastomers from organic wastes (Patent Cooperation Treaty Patent Application PCT/US03/01202, 1/15/2003, International Publication No. WO 03/062439, 7/31/2003; US Patent Application No. 10/501,502, 7/9/2004; Japan Patent Application No. 2003-562306, 7/14/2004; China Patent Application No. 3802258.3, 7/15/2004)Recovery and purification of polyhydroxyalkanoates from PHA-containing cell mass (US Provisional Patent Application, 5/24/2005). RESEARCH OPPORTUNITIESGraduate assistantships are availabel to students with background and interest in applied microbiology, biochemistry, process engineering,and chemical engineering. Please send inquiry emails to jianyu@hawaii.edu.RESEARCH PROJECTSAdvanced water and waste management in biomass refining for sustainable cellulosic ethaol productionGreen production of PHA bioplastics from renewable feedstocks: feedstock pretreatment, novel bioreactor, non-solvent polymer recovery, process simulation, scale-up economics Proteomics and metabolic engineering of microbial biosynthesis of polyhydroxyalkanoates PUBLICATIONSJian Yu and Heiko Stahl (2008). Microbial utilization and biopolyester synthesis of bagasse hydrolysates. Bioresource Technology (in print).Zhe Xu and Jian Yu (2008). Hydrodynamics and mass transfer in a novel multiple airlifting membrane bioreactor. Chemical Engineering Science 63:1941-1949. Jian Yu and Pat Takahashi (2007). Biophotolysis-based hydrogen production by cyanobacteria and green microalgae. In: A. Mendes-Vilas (editor), Communicating Current Research and Educational Topics and Trends in Applied Microbiology. Microbiology Series No.1 Vol. 1, Pp 79-89, Formatex, Badajoz, Spain. Jian Yu and Lilian Chen (2006). Cost effective recovery and purification of polyhydroxyalkanoates by selective dissolution of cell mass. Biotechnology Progress 22, 547-553. Sun-En Lee, Qing X. Li and Jian Yu (2006). Proteomic examination of Ralstonia eutropha in cellular response to formic acid inhibition. Proteomics 6(15):4259-4268. Jian Yu, David Piklet, Lilian X L Chen (2005). Mechanism and kinetics of the monomeric products from abiotic hydrolysis of poly(3-hydroxybutyrate) under acidic and alkaline conditions. Polymer Degradation and Stability 89:289-299. Lilian X. L. Chen and Jian Yu (2005). Abiotic hydrolysis of biopolyester poly[(R)-3-hydroxybutyrate] in acidic and alkaline media. Macromolecular Symposium 224:35-46. Gary Delanoy, Qingxiao Li and Jian Yu (2005). Activity and stability of laccase in Conjugation with Chitosan. International Journal of Biological Macromolecules 35:89-95. Jian Yu and Yingtao Si (2004). Metabolic carbon fluxes and biosynthesis of polyhydroxyalkanoates by Ralstonia eutropha on short chain fatty acids. Biotechnology Progress 20(4):1015-1024. Guochen Du, Lilian Chen and Jian Yu (2004). High efficiency production of bioplastics form biodegradable organic solids. Journal of Polymers and the Environment, 12:89-94 Jian Yu and Shuwah Tse (2003). Adsorptive immobilization of a Pseudomonas strain and its effective population for augmented dye decomposition in a continuous flow activated sludge reactor. Biofouling, 19(4): 223-233. Jian Yu (2003). Biodegradation-based polymer surface erosion and surface renewal for foul release at low ship speeds. Biofouling, 19(suppl.): 83-90. Tommy W. Lo and Jian Yu (2003). The environmental factors and microbial degradation kinetics of poly(hydroxybutyrate-co-hydroxyvalerate) in aqueous medium. Journal of Applied Polymer Science, 87(2):205-213. Guocheng Du and Jian Yu (2002). Metabolic analysis on fatty acids utilization by Pseudomonas oleovorans: mcl-poly(3-hydroxyalkanoates) synthesis versus b-oxidation. Process Biochemistry, 38:325-332. Guocheng Du and J. Yu (2002). Green technology for conversion of food scraps to biodegradable thermoplastics polyhydroxyalkanoates. Environmental Science & Technology, 36(24):5511-5516. J. Yu, Y. Si and W.K. Wang (2002). Kinetics modeling on inhibition and utilization of mixed volatile fatty acids in formation of polyhydroxyalkanoates by Ralstonia eutropha, Process Biochemistry, 37(7):731-738. W. Lo and J. Yu (2002). Effects of energy dissipation rate and surface erosion on biodegradation of poly(hydroxybutyrate-co-hydroxyvalerate) and its blends with synthetic polymers in aqueous medium. Journal of Applied Polymer Science, 83, 1036-1045. G. Du, Y. Si and J. Yu (2001). Inhibition by medium-chain-length fatty acids of formation of polyhydroxyalkanoates from volatile fatty acids by Ralstonia eutropha. Biotechnology Letters, 23(19):1613-1617. G. Du, J. Chen, J. Yu and S. Lun (2001). Kinetic studies on poly-3-hydroxybutyrate formation by Ralstonia eutropha in a two-stage continuous culture system. Process Biochemistry 37(3):219-227. M. Ji, J. Yu, H. Chen and P.L. Yue (2001). Removal of slowly biodegradable COD in combined thermophilic UASB and moving bed biofilm reactors. Environmental Technology, 22(9): 1069-1080. J. Yu and Y. Si (2001). Dynamic study and modeling on formation of polyhydroxyalkanoates coupled with treatment of high strength wastewater, Environmental Science & Technology, 35:3584-3588. G. Du, J. Chen, J. Yu and S. Lun (2001). Feeding strategy of propionic acid for production of poly(hydroxybutyrate-co-hydroxyvalerate) with Ralstonia eutropha. Biochemical Engineering Journal, 8:103-110. J. Yu, X. Wang and P.L. Yue (2001). Optimal decolorization and kinetic modeling of synthetic dyes by Pseudomonas strains. Water Research, 35(15):3579-3586. G. Du, J. Chen, J. Yu and S. Lun (2001). Continuous production of poly-3-hydroxybutyrate by Ralstonia eutropha in a two-stage culture system. Journal of Biotechnology, 88:59-65. J. Yu and J. Wang (2001). Metabolic flux modeling of detoxification of acetic acid by Ralstonia eutropha at slightly alkaline pH levels. Biotechnology and Bioengineering, 73(6):458-464. J. Wang and J. Yu (2001). Kinetic analysis of formation of poly(3-hydroxybutyrate) from acetic acid by Ralstonia eutropha under chemically defined conditions. Journal of Industrial Microbiology and Biotechnology, 26:121-126. J. Yu (2001). Production of PHA from starchy wastes via organic acids. Journal of Biotechnology. 86:105-112. J. Wang and J. Yu (2000). Kinetic analysis on inhibited growth and poly(3-hydroxybutyrate) formation of Alcaligenes eutrophus on acetate under nutrient-rich conditions. Process Biochemistry 36:201-207. F.M. Zhang and J. Yu (2000). Decolorization of acid violet 7 with complex pellets of white-rot fungus and activated carbon. Bioprocess Engineering. 23:295-301. S. Maxwell and J. Yu (2000). Selective desulphurisation of dibenzothiophene by a soil bacterium. Process Biochemistry. 35:551-556. J. Yu, H. Chen, M. Ji and P.L. Yue. (2000). Distribution and change of microbial activity in combined UASB and AFB reactors for wastewater treatment. Bioprocess Engineering 22(4): 315-322. J. Yu, F. Zhang, T. Low, P.L. Yue (2000). Biodegradable thermoplastic blends for management of municipal solid waste. 3rd Asia Pacific Conference on Sustainable Energy and Environmental Technologies. 3-6 December 2000, Hong Kong. J. Yu, CW Tam, Si Y (2000). Formation of polyhydroxyalkanoates from starchy waste in two membrane-coupled reactors. Proceedings of the 5th international symposium on Environmental Biotechnology, 9-13 July 2000, Kyoto, Japan. Yu, J., M. Ji, and P.L. Yue. 1999. A Three-phase Fluidized Bed Reactor in the Combined Anaerobic/Aerobic Treatment of Wastewater. Journal of Chemical Technology and Biotechnology, vol. 74, pp. 619-626. Wang, Y., and J. Yu. 1999. Laccase-catalysed Decolorization of Synthetic Dyes. Water Research, vol., 33, no. 16, pp. 3512-3520. Zhen, Z.and J. Yu. 1998. Stresses on Immobilized Phanerochaete chrysosporium hyphae in Submerged Cultures for Ligninase Production. Canadian Journal of Chemical Engineering, vol. 76, pp. 784-789. Cho, S., and J. Yu. 1998. Copper Adsorption and Removal from Water by Living Mycelium of White-rot Fungus Phanerochaete chrysosporium. Water Research, vol. 32, pp. 2746-2752. Young, L., and J. Yu. 1997. Ligninase-catalysed Decolorization of Synthetic Dyes. Water Research, vol. 31, pp. 1187-1193. Lee, S., and J. Yu. 1997. Conversion of Municipal Sludge to Biodegradable Plastics Through a Two-step Bbioprocess. Resources, Conservation and Recycling, vol. 19, pp. 151-164. |
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