Chang Geun Yoo | Paper and Bioprocess Engineering | SUNY-ESF
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Chang Geun YooAssistant Professor

Chang Geun Yoo

409 Walters Hall
1 Forestry Drive
Syracuse, NY 13210


Research Interests

  • Biological/thermochemical conversion of biomass to fuels and chemicals
  • Bio-based material application
  • Elucidation of biomass and bio-product properties 
  • Development of lignocellulosic biorefinery


  • BPE 300 Introduction to Industrial Bioprocessing
  • BPE 438/638 Introduction to Biorefinery Process


  • 08/2008 – 07/2012    Doctor of Philosophy in Agricultural and Biosystems Engineering (Major), Biorenewable Resources and Technology (Minor), Iowa State University, Ames, Iowa, USA
  • 03/2006 – 02/2008    Master of Science in Chemical Engineering, Hanyang University, Seoul, Korea
  • 03/1998 – 02/2006    Bachelor of Science in Chemical Engineering, Hanyang University, Seoul, Korea

Professional Experience

  • 07/2018 – Present   Assistant Professor, Department of Paper and Bioprocess Engineering, State University of New York College of Environmental Science and Forestry, Syracuse, NY, USA
  • 09/2015 – 07/2018  Postdoc Research Associate, Oak Ridge National Laboratory, Oak Ridge, TN, USA
  • 09/2012 – 08/2015  Postdoc Research Associate, Biological Systems Engineering, University of Wisconsin at Madison, Madison, WI, USA

Publications (Peer-Review Journal Articles)

  • Mi Li, Chang Geun Yoo, Yunqiao Pu, Ajaya K. Biswal, Allison K. Tolbert, Debra Mohnen, and Arthur J. Ragauskas (†Co-first author), Downregulation of pectin biosynthesis gene GAUT4 leads to reduced ferulate and lignin-carbohydrate cross-linking in switchgrass, Communications Biology 2:22, 2019
  • Jin Zhang, Mi Li, Anthony C. Bryan, Chang Geun Yoo, William Rottmann, Kimberly A. Winkeler, Cassandra M. Collins, Vasanth Singan, Erika A. Lindquist, Sara S. Jawdy, Lee E. Gunter, Nancy L. Engle, Xiaohan Yang, Kerrie Barry, Timothy J. Tschaplinski, Jeremy Schmutz, Yunqiao Pu, Arthur J. Ragauskas, Gerald A. Tuskan, Wellington Muchero, and Jin-Gui Chen, Overexpression of a serine hydroxymethyltransferase increases biomass production and reduces recalcitrance in the bioenergy crop Populus, Sustainable Energy Fuels, 2019, DOI: 10.1039/C8SE00471D
  • Gaojin Lyu, Chang Geun Yoo† and Xuejun Pan (†Co-first author), Alkaline oxidative cracking for effective depolymerization of biorefining lignin to mono-aromatic compounds and organic acids with molecular oxygen, Biomass and Bioenergy, 7-14, 2018
  • Lan Yao, Congxin Chen, Chang Geun Yoo, Xianzhi Meng, Mi Li, Yunqiao Pu, Arthur J. Ragauskas, and Haitao Yang, Insights of ethanol organosolv pretreatment on lignin properties of Broussonetia papyrifera, ACS Sustainable Chemistry & Engineering, 6 (11), 14767-14773, 2018 
  • Seokwon Jung, Heather L. Trajano, Chang Geun Yoo, Marcus B. Foston, Fan Hu, Allison K. Tolbert, Charles E. Wyman, and Arthur J. Ragauskas, Topochemical Understanding of Lignin Distribution during Hydrothermal Flowthrough Pretreatment, ChemistrySelect, 3 (32), 9348-9352, 2018
  • Lan Yao, Haitao Yang, Chang Geun Yoo, Yunqiao Pu, Xianzhi Meng, Wellington Muchero, Gerald A. Tuskan, Timothy Tschaplinski, and Arthur J. Ragauskas, Understanding the influences of different pretreatments on recalcitrance of Populus natural variants, Bioresource Technology, 265, 75-81, 2018
  • Chang Geun Yoo, Alexandru Dumitrache, Wellington Muchero, Jace Natzke, Hannah Akinosho, Mi Li, Robert Sykes, Steven D. Brown, Brian H. Davison, Gerald A. Tuskan, Yunqiao Pu, and Arthur J. Ragauskas , Significance of lignin S/G ratio in biomass recalcitrance of Populus trichocarpa variants for bioethanol production, ACS Sustainable Chemistry & Engineering, 6 (2), 2162-2168, 2018
  • Ning Li, Yanding Li, Chang Geun Yoo, Xuliang Lin, John Ralph, and Xuejun Pan, An uncondensed lignin depolymerization in the solid state and isolated from lignocellulosic biomass: A mechanistic study [Journal Inside Front Cover], Green Chemistry, 20, 4224-4235, 2018
  • Mi Li, Chang Geun Yoo, Yunqiao Pu, and Arthur J. Ragauskas, 31P NMR chemical shifts of solvents and products impurities in biomass pretreatments, ACS Sustainable Chemistry & Engineering, 6 (1), 1265-1270, 2018
  • Ajaya K. Biswal, Melani A. Atmodjo, Mi Li, Holly L. Baxter, Chang Geun Yoo, Yunqiao Pu, Yi-Ching Lee, Mitra Mazarei, Ian M. Black, Ji-Yi Zhang, Hema Ramanna, Adam L. Bray, Zachary R. King, Peter R. LaFayette, Sivakumar Pattathil, Bryon Donohoe, Sushree S. Mohanty, David Ryno, Kelsey Yee, Olivia A. Thompson, Miguel Rodriguez Jr, Alexandru Dumitrache, Jace Natzke, Kim Winkeler, Cassandra Collins, Xiaohan Yang, Li Tan, Robert W. Sykes, Erica L. Gjersing, Angela Ziebell, Geoffrey B. Turner, Steve R. Deckere, Michael G Hahn, Brian H. Davison, Michael K. Udvardi, Jonathan Mielenz, Mark F. Davis, Richard S. Nelson, Wayne A. Parrott Arthur J. Ragauskas, C. Neal Stewart, Jr. and Debra Mohnen, Sugar release and growth of biofuel crops are improved by downregulation of pectin biosynthesis , Nature Biotechnology, 36, 249-257, 2018
  • Lan Yao, Chang Geun Yoo, Xianzhi Meng, Mi Li, Yunqiao Pu, Arthur J. Ragauskas, and Haitao Yang, A structured understanding of cellobiohydrolyases I binding to poplar lignin after diluted-acid pretreatment, Biotechnology for Biofuels, 11 (96), 2018
  • Lan Yao, Haitao Yang, Chang Geun Yoo, Xianzhi Meng, Yunqiao Pu, Naijia Hao, and Arthur J. Ragauskas, Characteristics of lignin fractions from dilute acid pretreated switchgrass and their effect on cellobiohydrolase I from Trichoderma longibrachiatum, Frontiers in Energy Research 6:1, 2018
  • Chang Geun Yoo, Ning Li, Melanie Swannell, and Xuejun Pan, Isomerization of glucose to fructose catalyzed by lithium bromide in water, Green Chemistry, 19, 4402-4411, 2017
  • Chang Geun Yoo, Yongil Yang, Xianzhi Meng, Wellington Muchero, Kelsey L. Yee, Olivia A. Thompson, Miguel Rodriguez Jr., Garima Bali, Nancy L. Engle, Erika Lindquist, Vasanth Singan, Jeremy Schmutz, Stephen P. DiFazio, Timothy J. Tschaplinski, Gerald A. Tuskan, Jin-Gui Chen, Brian Davison, Yunqiao Pu, and Arthur J. Ragauskas, Insights of biomass recalcitrance in natural Populus trichocarpa variants for biomass conversion, Green Chemistry, 19, 5467-5478, 2017
  • Yongil Yang, Chang Geun Yoo, Raja Payyavula, Kimberly A. Winkeler, Cassandra M. Collins, Maud A.W. Hinchee, Sara Jawdy, Lee Gunter, Yunqiao Pu, Udaya Kalluri, Xiaohan Yang, Arthur J. Ragauskas, Gerald A. Tuskan and Jin-Gui Chen, Overexpression of a domain of unknown function 231-containing protein increase O-xylan acetylation and cellulose biosynthesis in Populus, Biotechnology for Biofuels, 10 (311), 2017
  • Vanessa Thomas, Ninad Kothari, Samarthya Bhagia, Hannah Akinosho, Mi Li, Yunqiao Pu, Chang Geun Yoo, Sivakumar Pattathil, Michael G. Hahn, Arthur J. Ragauskas, Rajeev Kumar, and Charles E. Wyman, Comparative evaluation of Populus variants total sugar release and structural features following pretreatment and digestion by two distinct biological systems, Biotechnology for Biofuels, 10 (292), 2017
  • Jong-Jin Park, Chang Geun Yoo, Amy Flanagan, Yunqiao Pu, Smriti Debnath, Yaxin Ge, Arthur J. Ragauskas, and Zeng-Yu Wang, Defined tetra-allelic gene disruption of the 4-coumarate:coenzyme A ligase 1 (Pv4CL1) gene by CRISPR/Cas9 in switchgrass results in lignin reduction and improved sugar release, Biotechnology for Biofuels, 10 (284), 2017
  • Hannah Akinosho, Kelsey Yee, Miguel Rodriguez, Wellington Muchero, Chang Geun Yoo, Mi Li, Olivia Thompson, Yunqiao Pu, Steven Brown, Johnathan Mielenz, and Arthur J. Ragauskas, Lignin exhibits recalcitrance-associated features following the consolidated bioprocessing of natural variants of Populus trichocarpa, ChemistrySelect,  2 (33), 10642-10647, 2017
  • Zhi-Hua Liu, Michelle Olson, Somnath Dattatray Shinde, Xin Wang, Naijia Hao, Chang Geun Yoo, Samarthya Bhagia, John R. Dunlap, Yunqiao Pu, Katy Kao, Arthur J. Ragauskas, Mingjie Jin, and Joshua S. Yuan, Synergistic maximization of carbohydrate output and lignin processibility by combinatorial pretreatment, Green Chemistry, 19, 4939-4955, 2017
  • Chang Geun Yoo, Mi Li, Xianzhi Meng, Yunqiao Pu, and Arthur J. Ragauskas, Effects of organosolv and ammonia pretreatments on lignin properties and its inhibitory effect for enzymatic hydrolysis, Green Chemistry, 19, 2006-2016, 2017
  • Hannah Akinosho, Chang Geun Yoo, Alexandru Dumitrache, Jace Natzke, Steven Brown, and Arthur J. Ragauskas (†Co-first author), Elucidating the structural changes to Populus lignin during consolidated bioprocessing with Clostridium thermocellum, ACS Sustainable Chemistry & Engineering, 5 (9), 7486-7491, 2017
  • Xianzhi Meng, Barbara Evans, Chang Geun Yoo, Yunqiao Pu, Brian Davison, and Arthur J. Ragauskas, The effect of in-vivo deuteration on structure of switchgrass lignin, ACS Sustainable Chemistry & Engineering, 5 (9), 8004-8010, 2017
  • Lan Yao, Haitao Yang, Chang Geun Yoo, Xianzhi Meng, Mi Li, Yunqiao Pu, Robert Sykes, and Arthur J. Ragauskas, Adsorption of Cellobiohydrolases I onto lignin fractions from dilute acid pretreated Broussonetia papyrifera, Bioresource Technology, 244, 957-962, 2017
  • Chang Geun Yoo, Yunqiao Pu, and Arthur J. Ragauskas, Ionic liquids: Promising green solvents for lignocellulosic biomass utilization, Current Opinion in Green and Sustainable Chemistry, 5, 5-11, 2017
  • Chang Geun Yoo, Shuting Zhang, and Xuejun Pan, Effective conversion of biomass into bromomethylfurfural, furfural, and depolymerized lignin in lithium bromide molten salt hydrate of a biphasic system, RSC Advances, 7, 300-308, 2017
  • Allison K. Tolbert, Chang Geun Yoo, and Arthur J. Ragauskas (†Co-first author), Understanding the changes to biomass surface characteristics after ammonia and organosolv pretreatments using ToF-SIMS, ChemPlusChem, 82 (5), 686-690, 2017
  • Yongil Yang, Chang Geun Yoo, Hao-Bo Guo, William Rottmann, Kimberly A. Winkeler, Cassandra M. Collins, Lee E. Gunter, Sara S. Jawdy, Xiaohan Yang, Hong Guo, Yunqiao Pu, Arthur J. Ragauskas, Gerald A. Tuskan and Jin-Gui Chen, Overexpression of a Domain of Unknown Function 266-containing protein increases cellulose biosynthesis, reduces recalcitrance and enhances plant growth in the bioenergy crop Populus, Biotechnology for Biofuels, 10 (74), 2017
  • Mi Li, Yunqiao Pu, Chang Geun Yoo, Erica Gjersing, Steve Decker, Crissa Doeppke, Todd Shollenberger, Timothy Tschaplinski, Nancy Engle, Robert Sykes, Mark Davis, Holly Baxter, Mitra Mazarei, Chunxiang Fu, Richard Dixon, Zeng-Yu Wang, Neal Stewart, and Arthur J. Ragauskas, Study of traits and recalcitrance reduction of field-grown COMT down-regulated switchgrass, Biotechnology for Biofuels, 10 (12), 2017
  • Xianzhi Meng, Yunqiao Pu, Chang Geun Yoo, Mi Li, Garima Bali, Doh-Yeon Park, Erica Gjersing, Mark F. Davis, Muchero Wellington, Gerald A. Tuskan, Timothy J. Tschaplinski, and Arthur J. Ragauskas, An in-depth understanding of biomass recalcitrance using natural poplar variants as the feedstock, ChemSusChem, 10 (1), 139-150, 2017
  • Xianzhi Meng, Chang Geun Yoo, Mi Li, and Arthur J. Ragauskas, Physicochemical structural changes of cellulosic substrates during enzymatic saccharification, Journal of Applied Biotechnology & Bioengineering, 1 (3): 00015, 2016
  • Naijia Hao, Haoxi Ben, Chang Geun Yoo, Sushil Adhikari, and Arthur J. Ragauskas, Review of NMR characterization of pyrolysis oils, Energy & Fuels, 30 (9), 6863-6880, 2016
  • Chang Geun Yoo, Yunqiao Pu, Mi Li, and Arthur J. Ragauskas, Elucidating structural characteristics of biomass using solution-state 2D NMR with a mixture of deuterated dimethylsulfoxide and hexamethylphosphoramide, ChemSusChem, 9 (10), 1090-1095, 2016
  • Chang Geun Yoo, Nhuan P. Nghiem, and Tae Hyun Kim, Production of fermentable sugars from corn fiber using soaking in aqueous ammonia (SAA) pretreatment and fermentation to succinic acid using Escherichia coli AFP184, Korean Journal of Chemical Engineering, 33 (10), 2863-2868, 2016
  • Mi Li, Yunqiao Pu, Chang Geun Yoo, and Arthur J. Ragauskas, The occurrence of tricin and its derivatives in plants, Green Chemistry, 18, 1439-1454, 2016
  • Alexandru Dumitrache, Hannah Akinosho, Miguel Jr. Rodriguez, Xianzhi Meng, Chang Geun Yoo, Jace Natzke, Nancy L. Engle, Robert W. Sykes, Timothy J. Tschaplinski, Wellington Muchero, Arthur J. Ragauskas, Brian H. Davison, Steven D. Brown, Consolidated bioprocessing of Populus using Clostridium (Ruminiclostridium) thermocellum: A case study on the impact of lignin composition and structure, Biotechnology for Biofuels, 9 (31), 2016
  • Chang Geun Yoo, Hoon Kim, Fachuang Lu, Ali Azarpira, Xuejun Pan, Kyeong Keun Oh, Jun Seok Kim, John Ralph, and Tae Hyun Kim, Understanding the physicochemical characteristics and the improved enzymatic saccharification of corn stover pretreated with aqueous and gaseous ammonia, BioEnergy Research, 9 (1), 67-76, 2016
  • Jijiao Zeng, Chang Geun Yoo, Fei Wang, Xuejun Pan, Wilfred Vermerris, and Zhaohui Tong, Biomimetic Fenton-catalyzed lignin depolymerization to high value aromatics and dicarboxylic acids, ChemSusChem, 8 (5), 861-871, 2015
  • Jing Zhang, Yong S Choi, Chang Geun Yoo, Tae Hyun Kim, Robert C Brown, and Brent Shanks, Cellulose-hemicellulose and cellulose-lignin interactions during fast pyrolysis, ACS Sustainable Chemistry & Engineering, 3 (2), 293-301, 2015
  • Chao Wang, Chang Geun Yoo, Chen Xu Yu, and Tae Hyun Kim, Raman spectroscopic characterization of photonanocatalyst aided alkaline pretreated corn stover biomass, Advanced Materials Research, 875-877, 1576-1580, 2014
  • Chang Geun Yoo, Chi Woo Lee, and Tae Hyun Kim, Effect of low-moisture anhydrous ammonia (LMAA) pretreatment on biomass quality and enzymatic hydrolysis for long-term storage, Applied Biochemistry and Biotechnology, 174, 2639-2651, 2014
  • Nhuan P. Nghiem, Tae Hyun Kim, Chang Geun Yoo, and Kevin B. Hicks, Enzymatic fractionation of SAA-pretreated barley straw for production of fuel ethanol and astaxanthin as a value-added co-product, Applied Biochemistry and Biotechnology, 171, 341-351, 2013
  • Chang Geun Yoo, Nhuan P. Nghiem, Kevin B. Hicks, and Tae Hyun Kim, Maximum production of fermentable sugars from barley straw using optimized soaking in aqueous ammonia (SAA) pretreatment, Applied Biochemistry and Biotechnology, 169 (8), 2430-2441, 2013
  • Tae Hyun Kim, Chang Geun Yoo, and Buddhi Lamsal, Front-end recovery of protein from lignocellulosic biomass and its effects on chemical pretreatment and enzymatic saccharification, Bioprocess and Biosystems Engineering, 36 (6), 687-694, 2013
  • Chang Geun Yoo, Chao Wang, Chenxu Yu and Tae Hyun Kim, Enhancement of enzymatic hydrolysis and Klason lignin removal of corn stover using photocatalyst-assisted ammonia pretreatment, Applied Biochemistry and Biotechnology, 169 (5), 1648-4658, 2013
  • Chang Geun Yoo, Monlin Kuo, and Tae Hyun Kim, Ethanol and Furfural Production from Corn Stover using Hybrid Fractionation Process with Zinc Chloride and Simultaneous Saccharification and Fermentation (SSF), Process Biochemistry, 47 (2), 319-326, 2012
  • Chang Geun Yoo, Chi-Woo Lee, and Tae Hyun Kim, Optimization of Two-stage Fractionation Process for Lignocellulosic Biomass using Response Surface Methodology (RSM), Biomass and Bioenergy, 35, 4901-4909, 2011
  • Chang Geun Yoo, Nhuan P. Nghiem, Kevin B. Hicks, and Tae Hyun Kim, Pretreatment of Corn Stover by Low Moisture Anhydrous Ammonia (LMAA) Process, Bioresource Technology, 102 (21), 10028-10034, 2011
  • Chang Geun Yoo, Chi-Woo Lee, and Tae Hyun Kim, Two-Stage Fractionation of Corn Stover Using Aqueous Ammonia and Hot Water, Applied Biochemistry and Biotechnology, 164 (6), 729-740, 2011
  • Qiao Han, Chang Geun Yoo, Se-Hee Jo, Sung Chul Yi, and Sungyong Mun, Effect of Mobile Phase Composition on Henry’s Constants of 2-Amino-3-phenyl-propanoic Acid, 2-Amino-3-(3-indolyl)-propanoic Acid, and 2-Amino-3-(4-hydroxyphenyl)-propanoic Acid in a Capcell Park C18 Chromatography, Journal of Chemical & Engineering Data, 53, 2613-2621, 2008
  • Chang Geun Yoo, Qiao Han, and Sungyong Mun, Reversal of Elution Sequence and Selectivity Resulting from the Use of Ionic Liquid as a Mobile Phase Modifier, Journal of Liquid Chromatography & Related Technologies, 31, 1104-1122, 2008
  • Chang Geun Yoo, Sung Chul Yi, and Sungyong Mun, Effect of Ionic Liquid on the Retention and Separation Behaviors of Various Amino Acids in a Reversed-Phase Chromatography, Journal of Liquid Chromatography & Related Technologies, 30, 2989-3006, 2007
  • Se-Hee Jo, Jeung Kun Kim, Chang Geun Yoo, Jin-Il Kim, Yoon-Mo Koo, and Sunyong Mun, Comparative Performance of a Single-Cascade Five-Zone SMB versus a Single-Cascade Two-Zone SMB for the Separation of a Ternary Amino Acid Mixture, The Canadian Journal of Chemical Engineering, 85 (6), 874-882, 2007


Book Chapters

  • Chang Geun Yoo and Xuejun Pan

Chapter: Pretreatment of Lignocellulosic Biomass, Book title: Bioenergy: Principles and Applications, Editors: Yebo Li and Samir Kumar Khanal, John Wiley & Sons, Inc., 2016, ISBN: 978-1-118-56831-6 

  • Chang Geun Yoo and Xuejun Pan

Chapter: Fuel Ethanol from Lignocellulosic Biomass, Book title: The Handbook of Clean Energy Systems, Editor: Jinyue Yan, Wiley, 2015, DOI: 10.1002/9781118991978.hces108

  • Yunqiao Pu, Xianzhi Meng, Chang Geun Yoo, Mi Li, and Arthur J. Ragauskas

Chapter: Analytical methods for biomass characterization during pretreatment and bioconversion, Book title: Valorization of lignocellulosic biomass in a biorefinery: From logistics to environmental and performance impact, Editors: Rajeev Kumar, Seema Singh and Venkatesh Balan, Nova Science Publishers, 2016, ISBN: 978-1-63485-843-4

Current Graduate Advisees

Current Graduate Advisees

Anqi JiAnqi Ji

  • Degree Sought: PHD
  • Graduate Advisor(s): Yoo
  • Area of Study: FCH Environmental Chemistry

Yunxuan WangYunxuan Wang

  • Degree Sought: PHD
  • Graduate Advisor(s): Yoo
  • Area of Study: Bioprocess Engineering

Jingshun ZhuangJingshun Zhuang

  • Degree Sought: PHD
  • Graduate Advisor(s): Yoo
  • Area of Study: Bioprocess Engineering

Honors & Awards

  • ORNL UT-Battelle Awards – Postdoctoral Researcher (2017)
  • Supplementary Performance Award ORNL; Oak Ridge National Laboratory (2016)
  • Gamma Sigma Delta; The honor society of Agriculture (2012)
  • Research Excellence Award; Iowa State University (2012)
  • Alpha Epsilon; The honor society of Agricultural, Food, and Biological Engineering (2011)
  • Techno Dormitory Scholarship; Ministry of Science and Technology, Korea (2006)
  • Science and Technology Scholarship (Excellent Scholarship); Hanyang University (2006-2007)
  • Hanyang Fusion Materials Scholarship; Hanyang Fusion Materials (2006-2007)