Junyong (JY) Zhu, Ph.D., University of California, Irvine, CA

Senior Research Scientist; USDA Forest Product Laboratory

USDA Forest Product Laboratory
Building 33, Room 243
One Gifford Pinchot Dr.
Madison, WI 53726
Tel: (608) 231-9520
Fax: (608) 231-9538
E-mail: jzhu9@wisc.edujzhu@fs.fed.us 

Program Affiliations

  • Biological Systems Engineering, University of Wisconsin, Madison
  • USDA Forest Products Laboratory, USDA Forest Service

Education and Certificates

  • B. Sc. Mechanical Engineering, Beijing Institute of Aeronautics and Astronautics, China
  • M. Sc. Mechanical Engineering, Arizona State University, Tempe, AZ
  • Ph.D. Engineering, University of California, Irvine, CA

Fields of Interest

  • Mechanical and chemical pretreatments of lignocellulose for bioconversion
  • Biorefinery process integration for efficient production of biofuel and bioproducts
  • Cellulose nanomaterials: production, characterization, and utilization.
  • Fundamentals of nano-scale structure and activities associated with enzyme access in lignocellulose bioconversion processes
  • Biomass feedstock characterization
  • Fiber resources, properties, characterization, processing, and modification
  • Fiber Production through mechanical and chemical pulping and Paper Recycling


  • BSE 460: Biorefining - Energy and Products from Renewable Resources


Selected Referred Journal Publications since 2009 only

1. Zhang, J. and Zhu, J.Y., (2015) “Optimizing High Titer Ethanol Production from a SPORL Pretreated Poplar without Detoxification Using a Combined Hydrolysis Factor (CHF)” Bioresource Technology (submitted)
2. Zhou, H., Zhu, J.Y., Gleisner, R., Qiu, X., Horn, E., (2015), “High titer ethanol and lignosulfonate productions from SPORL pretreated poplar at pilot-scale”, Frontiers Bioenergy Biofuels (submitted)
3. Cheng, J., Leu, S.Y., Zhu, J.Y. Gleisner, R., (2015), “High Titer and Yield Ethanol Production from Undetoxified Whole Slurry of Douglas-fir Forest Residue using pH-Profiling in SPORL”, Biotechnol. Biofuels 8:22 DOI:10.1186/s13068-015-205-3
4. Zhu, J.Y., Chandra, M.S., Gu, F., Gleisner, R., Reiner, R., Sessions, J., Marrs, G., Gao, J., Anderson, D., (2015) “Using Sulfite Chemistry for Robust Bioconversion of Douglas-fir Forest Residue to High Titer Bioethanol and Lignosulfonate: A Pilot-Scale Demonstration”, Bioresource Technology, 179:390-397 DOI:10.1016/j.biortech.2014.12.052
5. Wang, W., Mozuch, M.D., Sabo, R.C., Kersten, P., Zhu, J.Y., Jin, Y., (2015), “Production of cellulose nanofibrils from bleached eucalyptus fibers by hyperthermophilic endoglucanase treatment and subsequent microfluidization”, Cellulose 22:351-316 DOI:10.1007/s10570-014-0465-2
6. Zhang, J., Laguna, A., Clemons, C., Wolcott, M.P., Gleisner, R., Zhu, J.Y. (2015), “Effect of Temperature on Pelletizing SPORL Pretreated Forest Biomass and Subsequent Enzymatic Saccharification and Fermentation”, BioEnergy Research 8: DOI:10.1007/s12155-014-9530-9
7. Zhou, H.F., Leu, S.-Y., Zhu, J.Y., Wu, X., Gleisner, R., Yang, D., Qiu, X., Horn, E., (2014), “Comparisons of high titer ethanol production and lignosulfonate properties by SPORL pretreatment of lodgepole pine at two temperatures”, RSC Advances 4, 27030–27038 DOI: 10.1039/c4ra03608e
8. Wang, Q.Q., Zhao, X., Zhu, J.Y., (2014), “Kinetics of Strong Acid Hydrolysis of A Bleached Kraft Pulp for Producing Cellulose Nanocrystals (CNC)”, Ind. Eng. Chem. Res. 53:11007-11014 DOI:10.1021/ie501672m
9. Xu, X., Wang, H.; Jiang, L.; Wang, X.; Payne, S.; Zhu, J.Y. (2014) “Electrospun Polyethylene Oxide Nanofiber Mats: Effects of Cellulose Nanocrystals and Cellulose Nanofibrils and Novel Shish-kebab-like Crystalline Structures”, Macromolecules 47:3409-3416 DOI: 10.1021/ma402627j
10. Cheng, J., Leu, S.-Y., Zhu, J.Y., Jeffries, T.W., (2014), “Ethanol Production from Non-detoxified Whole Slurry of SPORL-pretreated Empty Fruit Bunches at a Low Cellulase Loading”, Bioresource Technology 164:331-337 DOI:10.1016/j.biortech.2014.04.102
11. Lou, H, Zhou, H, Li, X., Wang, M., Zhu, J.Y., and Qiu, X., (2014), “Understanding the Effects of Lignosulfonate on Enzymatic Saccharification of Pure Cellulose”, Cellulose 21:1351-1359 DOI: 10.1007/s10570-014-0237-z
12. Zhang, C., Houtman, C.J., Zhu, J.Y. (2014), “Using Low Temperature to Balance Enzymatic Saccharification and Furan Formation during SPORL Pretreatment of Douglas-fir”, Process Biochemistry 49:466-473 DOI:10.1016/j.procbio.2013.12.017
13. Zhou, H.F., Zhu, J.Y., Luo, X., Leu, S.-Y., Wu, X., Gleisner, R., Dien, B.S., Hector, R.E., Yang, D., Qiu, X., Horn, E., Negron, J. (2013), “Bioconversion of Beetle-Killed Lodgepole Pine Using SPORL: Process Scale-up Design, Lignin Co-product, and High Solids Fermentation without Detoxification”, Ind. Eng. Chem. Res. 52(45):16057-16065 DOI:10.1021/ie402873y
14. Leu, S.-Y., Gleisner, R., Zhu, J.Y., Sessions, J., Marrs, G., (2013) “Robust Enzymatic Saccharification of a Douglas-fir Forest Harvest Residue by SPORL”, Biomass Bioenergy 59:393-401 DOI:10.1016/j.biombioe.2013.08.014
15. Lou, H., Zhu, J.Y., Lan, T.Q., Lai, H., and Qiu, X., (2013) “pH-Induced Lignin Surface Modification to Reduce Nonspecific Cellulase Binding and Enhance Enzymatic Saccharification of Lignocelluloses”, ChemSusChem 6(5):919-927 DOI: 10.1002/cssc.201200859
16. Leu, S-Y. and Zhu, J.Y., (2013) “Substrate-Related Factors Affecting Enzymatic Saccharification of Lignocelluloses: Our Recent Understanding”, BioEnergy Research 6:405-415 DOI: 10.1007/s12155-012-9276-1
17. Xu, X., Liu, F., Jiang, L. and Zhu, J.Y. (2013) “Cellulose Nanocrystals vs. Cellulose Nanofibrils: A Comparative Study on Their Microstructures and Effects as Polymer Reinforcing Agents”, ACS Applied Materials & Interfaces 5(8):2999-3009, DOI: 10.1021/am302624t
18. Wang, Q.Q., Zhu, J.Y., Considine, J.M., (2013) “Strong and Optically Transparent Film Prepared Using Cellulosic Solid Residue (CSR) Recovered from Cellulose Nanocrystals (CNC) Production Waste Stream”, ACS Applied Materials & Interfaces 5(7):2527-2534, DOI: 10.1021/am302967m
19. Wang, Z.J., Lan, T.Q., Zhu, J.Y., (2013) “Lignosulfonate and Elevated pH Can Enhance Enzymatic Saccharification of Lignocelluloses”, Biotechnol. Biofuels 6:9. DOI:10.1186/1754-6834-6-9
20. Zhang, C., Zhu J.Y., Gleisner, R., Sessions, J. (2012) “Fractionation of Forest Residues of Douglas-fir for Fermentable Sugar Production by SPORL Pretreatment”, BioEnergy Research 5(4):978-988
21. Wang, Q.Q., Zhu, J.Y., Hunt, C.G., Zhan, H.Y. (2012) “Kinetics of Adsorption, Desorption, and Re-adsorption of a Commercial Endoglucanase in Lignocellulosic Suspensions”, Biotechnol. Bioeng. 109(8):1965-1975
22. Zhu, J.Y., Zhuang, X.S. (2012) "Conceptual net energy output for biofuel production from lignocellulosic biomass through biorefining", Prog. Energy Combust. Sci. 38(4):583-598
23. Wang, Q.Q., He, Z.B., Zhu, Z., Zhang, Y.-H. P., Ni, Y.H., Luo, X.L., Zhu, J.Y. (2012) “Evaluations of Cellulose Accessibility of Lignocelluloses by Solute Exclusion and Protein Adsorption Techniques”, Biotechnol. Bioeng. 109(2):381-389
24. Liu, H., Zhu, J.Y., Chai, X.S., (2011) “In-situ, Rapid and Temporally Resolved Measurements of Cellulase Adsorption onto Lignocellulosic Substrates by UV-Vis Spectrophotometry” Langmuir 27(1):272-278
25. Zhu, J.Y., Sabo, R., Luo, X.L., (2011), “Integrated Production of Nano-fibrillated Cellulose and Biofuel (Ethanol) by Enzymatic Fractionation of Wood Fibers”, Green Chemistry 13(5):1339-1344
26. Luo, X., Zhu, J.Y., Gleisner, R., Zhan, H.Y., (2011) “Effect of Wet Pressing-induced Fiber Hornification on Enzymatic Saccharification of Lignocelluloses,” Cellulose 18(4):1055-1062
27. Luo, X., Zhu, J.Y., (2011) “Effects of Drying-induced Fiber Hornification on Enzymatic Saccharification of Lignocelluloses,” Enzyme Microbial Technol. 48(1):92-99
28. Zhu, W., Zhu, J.Y., Glesiner, R., Pan, X.J., (2010), “On Energy Consumption for Size-Reduction and Yield from Subsequent Enzymatic Hydrolysis of Lodgepole Pine,” Bioresource Technology, 101:2782-2792
29. Zhu, J.Y., Pan, X.J., (2010), “Woody Biomass Pretreatment for Cellulosic Ethanol Production: Technology and Energy Consumption Evaluation”, Bioresource Technology, 101:4992-5002.
30. Zhu, J.Y., Pan, X.J., Wang, G.S, Gleisner, R., (2009), “Sulfite Pretreatment (SPORL) for Robust Enzymatic Saccharification of Spruce and Red Pine”, Bioresource Technology, 100(8):2411-2418.
31. Zhu, J.Y., Wang, G.S., Gleisner, R., Pan, X., (2009), “Specific Surface for Evaluating Wood Size Reduction and Pretreatment Efficiencies”, Chem. Eng. Sci., 64(3):474-485.


Book and Selected Patents

• Edited Book: Zhu JY, Pan XJ, Zhang X, (2011) Sustainable Production of Fuels, Chemicals, and Fibers from Forest Biomass, American Chemical Society (ACS) Symposium Series 1067, ISBN: 9780841226432.
• Zhu, J.Y., Reiner, R., “Methods for Integrating the Production of Cellulose Nanofibrils with the production of Cellulose Nanocrystals” U.S. Patent No. 8, 710,213 (2014)
• Liu, H., and Zhu, J.Y.,“Metal Compounds to Eliminate Nonproductive Enzyme Adsorption and Enhance Enzymatic Saccharification of Lignocelluloses”, U.S. Patent No. 8, 815,561 B2 (2014)
• Zhu, J.Y., Sabo, R., and Clemons, C.M., “Methods for Integrated Conversion of Lignocellulosic Material to Sugars/Biofuels and Nanocellulose” US Patent No. 8. 835,141 B2 (2014)

Selected Awards and Honors

• The Fulbright-Aalto University Distinguished Chair and Scholarship (2015-2016) in Energy and Sustainable Use of Natural Resources, The J. William Fulbright Foreign Scholarship Board, 2015
• TAPPI International R&D Technical Award and William H. Aiken Prize, 2014, Technical Association of the Pulp and Paper Industry (TAPPI)
• Employee of the Year –Technical, 2014, Greater Madison Area of Federal Agency Association (GMAFAA)
• US Forest Service Deputy Chief for R&D’s Distinguished Science Award, 2013
• USDA Exemplary R&D in Agriculture, Food, Nutrition, and Natural Resources, 2011

Expertise Summary

Current Major Recent Research Grants

• Co-Principal Investigator, High-value Nano-fibrillated Cellulose Polymer Reinforcement as a Biofuel Co-product, Co- Principal Investigator. USDA National Institute of Food and Agriculture (NIFA), Agricultural Food Research Initiative (AFRI) Competitive Grants Foundation Program - Sustainable Energy (2011-67009-20056). 1/2011–1/2016, ~$987,000

• Co-Principal Investigator, Renewable Biomass to Fuels and Value Added Chemicals, USDA National Institute of Food and Agriculture (NIFA), Agricultural Food Research Initiative (AFRI) Competitive Grants - Regional Approaches to Sustainable Bioenergy - Coordinated Agricultural Project (CAP) (2011-68005-30416) 10/2011–9/2016, ~$40,000,000