Charles E Wyman

Summary

Affiliation: University of California
Country: USA

Publications

  1. ncbi request reprint Partial flow of compressed-hot water through corn stover to enhance hemicellulose sugar recovery and enzymatic digestibility of cellulose
    Chaogang Liu
    Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA
    Bioresour Technol 96:1978-85. 2005
  2. ncbi request reprint What is (and is not) vital to advancing cellulosic ethanol
    Charles E Wyman
    Chemical and Environmental Engineering Department, Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, CA 92506, USA
    Trends Biotechnol 25:153-7. 2007
  3. doi request reprint Application of cellulase and hemicellulase to pure xylan, pure cellulose, and switchgrass solids from leading pretreatments
    Jian Shi
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California at Riverside, 1084 Columbia Avenue, Riverside, CA 92507, USA
    Bioresour Technol 102:11080-8. 2011
  4. doi request reprint Comparative data on effects of leading pretreatments and enzyme loadings and formulations on sugar yields from different switchgrass sources
    Charles E Wyman
    Chemical and Environmental Engineering Department, University of California, Riverside, CA 92506, USA
    Bioresour Technol 102:11052-62. 2011
  5. doi request reprint Comparison of laboratory delignification methods, their selectivity, and impacts on physiochemical characteristics of cellulosic biomass
    Rajeev Kumar
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, 1084 Columbia Avenue, Riverside, CA 92507, United States
    Bioresour Technol 130:372-81. 2013
  6. doi request reprint Application of high throughput pretreatment and co-hydrolysis system to thermochemical pretreatment. Part 1: dilute acid
    Xiadi Gao
    Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, California 92521, USA
    Biotechnol Bioeng 110:754-62. 2013
  7. doi request reprint Sugar yields from dilute oxalic acid pretreatment of maple wood compared to those with other dilute acids and hot water
    Taiying Zhang
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, 1084 Columbia Avenue, Riverside, CA 92507, United States
    Carbohydr Polym 92:334-44. 2013
  8. doi request reprint Changes in composition and sugar release across the annual rings of Populus wood and implications on recalcitrance
    Jaclyn D DeMartini
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, 1084 Columbia Avenue, Riverside, CA 92507, United States
    Bioresour Technol 102:1352-8. 2011
  9. doi request reprint Application of a reaction model to improve calculation of the sugar recovery standard for sugar analysis
    Jiacheng Shen
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, 1084 Columbia Avenue, Riverside, California 92507, USA
    Biotechnol Bioeng 109:300-5. 2012
  10. doi request reprint Sugar yields from dilute sulfuric acid and sulfur dioxide pretreatments and subsequent enzymatic hydrolysis of switchgrass
    Jian Shi
    Center for Environmental Research and Technology, University of California, Riverside, USA
    Bioresour Technol 102:8930-8. 2011

Collaborators

Detail Information

Publications50

  1. ncbi request reprint Partial flow of compressed-hot water through corn stover to enhance hemicellulose sugar recovery and enzymatic digestibility of cellulose
    Chaogang Liu
    Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA
    Bioresour Technol 96:1978-85. 2005
    ..The partial flow approach could be further improved by optimizing the operating strategy and reaction conditions, suggesting that this novel pretreatment could lead to advanced biomass pretreatment technology...
  2. ncbi request reprint What is (and is not) vital to advancing cellulosic ethanol
    Charles E Wyman
    Chemical and Environmental Engineering Department, Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, CA 92506, USA
    Trends Biotechnol 25:153-7. 2007
    ....
  3. doi request reprint Application of cellulase and hemicellulase to pure xylan, pure cellulose, and switchgrass solids from leading pretreatments
    Jian Shi
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California at Riverside, 1084 Columbia Avenue, Riverside, CA 92507, USA
    Bioresour Technol 102:11080-8. 2011
    ....
  4. doi request reprint Comparative data on effects of leading pretreatments and enzyme loadings and formulations on sugar yields from different switchgrass sources
    Charles E Wyman
    Chemical and Environmental Engineering Department, University of California, Riverside, CA 92506, USA
    Bioresour Technol 102:11052-62. 2011
    ..Harvest time had more impact on performance than switchgrass variety, and microscopy showed changes in different features could impact performance by different pretreatments...
  5. doi request reprint Comparison of laboratory delignification methods, their selectivity, and impacts on physiochemical characteristics of cellulosic biomass
    Rajeev Kumar
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, 1084 Columbia Avenue, Riverside, CA 92507, United States
    Bioresour Technol 130:372-81. 2013
    ..Cellulose characterizations revealed that PAA had less pronounced impacts on cellulose structure...
  6. doi request reprint Application of high throughput pretreatment and co-hydrolysis system to thermochemical pretreatment. Part 1: dilute acid
    Xiadi Gao
    Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, California 92521, USA
    Biotechnol Bioeng 110:754-62. 2013
    ..In addition, the effects of pretreatment conditions and biomass types on susceptibility of pretreated substrates to enzymatic conversion were clearly discernible, demonstrating the method to be a useful extension of HTPH systems...
  7. doi request reprint Sugar yields from dilute oxalic acid pretreatment of maple wood compared to those with other dilute acids and hot water
    Taiying Zhang
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, 1084 Columbia Avenue, Riverside, CA 92507, United States
    Carbohydr Polym 92:334-44. 2013
    ....
  8. doi request reprint Changes in composition and sugar release across the annual rings of Populus wood and implications on recalcitrance
    Jaclyn D DeMartini
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, 1084 Columbia Avenue, Riverside, CA 92507, United States
    Bioresour Technol 102:1352-8. 2011
    ..Observed variations were then related to structural changes that occur across the radial direction of trees, providing an important step toward understanding the influence of these changes on recalcitrance...
  9. doi request reprint Application of a reaction model to improve calculation of the sugar recovery standard for sugar analysis
    Jiacheng Shen
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, 1084 Columbia Avenue, Riverside, California 92507, USA
    Biotechnol Bioeng 109:300-5. 2012
    ..Statistical analysis of errors and application of the F-test confirmed that application of the model reduced experimental errors in SRS(e). Reference SRS(e) values are reported for the three series of concentrations...
  10. doi request reprint Sugar yields from dilute sulfuric acid and sulfur dioxide pretreatments and subsequent enzymatic hydrolysis of switchgrass
    Jian Shi
    Center for Environmental Research and Technology, University of California, Riverside, USA
    Bioresour Technol 102:8930-8. 2011
    ..For sulfur dioxide pretreatment, the highest total sugar yield of about 87% occurred at 5% SO₂ for 10 min and 180 °C. However, xylose yields were higher at shorter times and glucose yields at longer times...
  11. doi request reprint Hydrolysis of different chain length xylooliogmers by cellulase and hemicellulase
    Qing Qing
    Center for Environmental Research and Technology, Chemical and Environmental Engineering Department, Bourns College of Engineering, University of California, Riverside, 1084 Columbia Avenue, CA 92507, USA
    Bioresour Technol 102:1359-66. 2011
    ....
  12. pmc Lignin content in natural Populus variants affects sugar release
    Michael H Studer
    University of California, Bourns College of Engineering, Center for Environmental Research and Technology, Riverside, CA 92507, USA
    Proc Natl Acad Sci U S A 108:6300-5. 2011
    ....
  13. doi request reprint Dilute acid and autohydrolysis pretreatment
    Bin Yang
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, CA, USA
    Methods Mol Biol 581:103-14. 2009
    ....
  14. doi request reprint Carbohydrate derived-pseudo-lignin can retard cellulose biological conversion
    Rajeev Kumar
    Center for Environmental Research and Technology, Bourns College of Engineering, Riverside, California 92507, USA
    Biotechnol Bioeng 110:737-53. 2013
    ..The drop in cellulose conversion was higher than realized for cellulase inhibition by xylooligomers reported previously. Plausible mechanisms are discussed to explain the observed reductions in cellulose conversions...
  15. doi request reprint Comparison of microwaves to fluidized sand baths for heating tubular reactors for hydrothermal and dilute acid batch pretreatment of corn stover
    Jian Shi
    University of California, Center for Environmental Research and Technology, Bourns College of Engineering, 1084 Columbia Avenue, Riverside, CA 92507, USA
    Bioresour Technol 102:5952-61. 2011
    ..Mechanisms were proposed to explain the differences in results for the two systems and provide new insights into pretreatment that can help advance this technology...
  16. doi request reprint The effect of bovine serum albumin on batch and continuous enzymatic cellulose hydrolysis mixed by stirring or shaking
    Simone Brethauer
    Center for Environmental Research and Technology and Chemical and Environmental Engineering Department, University of California, 1084 Columbia Ave, Riverside, CA 92507, USA
    Bioresour Technol 102:6295-8. 2011
    ..Application of BSA to continuous hydrolysis for a mean residence time of 24h gave 33% and 40% higher glucose yields for corn stover and Avicel compared to the controls...
  17. doi request reprint Investigation of lignin deposition on cellulose during hydrothermal pretreatment, its effect on cellulose hydrolysis, and underlying mechanisms
    Hongjia Li
    Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, California, 92507 Center for Environmental Research and Technology CE CERT, University of California, Riverside, California BioEnergy Science Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee
    Biotechnol Bioeng 111:485-92. 2014
    ..The results give new insights into the fate of lignin in hydrothermal pretreatment and its effects on enzymatic hydrolysis. Biotechnol. Bioeng. 2014;111: 485-492. © 2013 Wiley Periodicals, Inc. ..
  18. doi request reprint Application of high throughput pretreatment and co-hydrolysis system to thermochemical pretreatment. Part 2: Dilute alkali
    Hongjia Li
    Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California Riverside, 446 Winston Chung Hall, 900 University Ave, Riverside, California, 92521 Center for Environmental Research and Technology CE CERT, Bourns College of Engineering, University of California Riverside, Riverside, California BioEnergy Science Center BESC, Oak Ridge National Laboratory, Oak Ridge, Tennessee
    Biotechnol Bioeng 110:2894-901. 2013
    ..Observed variations were compared to results from hydrothermal pretreatments, providing new insights in understanding the influence of biomass structural differences on recalcitrance...
  19. doi request reprint A novel mechanism and kinetic model to explain enhanced xylose yields from dilute sulfuric acid compared to hydrothermal pretreatment of corn stover
    Jiacheng Shen
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, 1084 Columbia Avenue, Riverside, CA 92507, USA
    Bioresour Technol 102:9111-20. 2011
    ....
  20. ncbi request reprint Characterization of the degree of polymerization of xylooligomers produced by flowthrough hydrolysis of pure xylan and corn stover with water
    Bin Yang
    Center for Environmental Research and Technology CE CERT, Chemical and Environmental Engineering Department, Bourns College of Engineering, University of California, Riverside, CA 92507, United States
    Bioresour Technol 99:5756-62. 2008
    ..One explanation for these difference is that lignin and lignin-xylan compounds in particular play an important role in the hydrolysis of lignocellulosic biomass...
  21. doi request reprint Comparative sugar recovery and fermentation data following pretreatment of poplar wood by leading technologies
    Charles E Wyman
    Chemical and Environmental Engineering Dept and Center for Environmental Research and Technology, University of California, Riverside, CA 92507, USA
    Biotechnol Prog 25:333-9. 2009
    ..An Agricultural and Industrial Advisory Board followed progress and helped steer the research to meet scientific and commercial needs...
  22. doi request reprint Engineering of a high-throughput screening system to identify cellulosic biomass, pretreatments, and enzyme formulations that enhance sugar release
    Michael H Studer
    Chemical and Environmental Engineering Department, Center for Environmental Research and Technology, University of California Riverside, 92507, USA
    Biotechnol Bioeng 105:231-8. 2010
    ..Coupled pretreatment and enzymatic hydrolysis performance of the well plate pretreatment system is shown to be consistent among the many wells in the device and also with performance of conventional tubular reactors...
  23. doi request reprint Chromatographic determination of 1, 4-β-xylooligosaccharides of different chain lengths to follow xylan deconstruction in biomass conversion
    Hongjia Li
    Chemical and Environmental Engineering Department, University of California Riverside, Riverside, CA 92507, USA
    J Ind Microbiol Biotechnol 40:551-9. 2013
    ..The resulting approach can profile xylooligosaccharides and help gain new insights into biomass deconstruction...
  24. pmc Co-hydrolysis of hydrothermal and dilute acid pretreated populus slurries to support development of a high-throughput pretreatment system
    Michael H Studer
    Department of Chemical and Environmental Engineering and Center for Environmental Research and Technology, Bourns College of Engineering, University of California Riverside, 1084 Columbia Avenue, Riverside, CA 92507, USA
    Biotechnol Biofuels 4:19. 2011
    ..abstract:..
  25. doi request reprint Xylooligomers are strong inhibitors of cellulose hydrolysis by enzymes
    Qing Qing
    Center for Environmental Research and Technology and, Chemical and Environmental Engineering Department, Bourns College of Engineering, University of California, Riverside, 1084 Columbia Avenue, Riverside, CA 92507, United States
    Bioresour Technol 101:9624-30. 2010
    ..A comparison among glucose sugars and xylose sugars also showed that xylooligomers were more powerful inhibitors than well-established glucose and cellobiose...
  26. doi request reprint Review: Continuous hydrolysis and fermentation for cellulosic ethanol production
    Simone Brethauer
    Center for Environmental Research and Technology and Chemical and Environmental Engineering Department, University of California, Riverside, CA 92507, USA
    Bioresour Technol 101:4862-74. 2010
    ..If sugar generation rates can be increased, the high cell densities in a continuous system could enable higher productivities and yields than in batch fermentations...
  27. doi request reprint Impact of surfactants on pretreatment of corn stover
    Qing Qing
    Center for Environmental Research and Technology, Chemical and Environmental Engineering Department, Bourns College of Engineering, University of California, 1084 Columbia Avenue, Riverside, CA 92507, USA
    Bioresour Technol 101:5941-51. 2010
    ..Surfactant pretreatment was found to improve lignin solubility, which could improve cellulose digestibility by reducing unproductive binding to enzyme, and also appeared to enhance performance by modifying the biomass surface...
  28. pmc Rapid selection and identification of Miscanthus genotypes with enhanced glucan and xylan yields from hydrothermal pretreatment followed by enzymatic hydrolysis
    Taiying Zhang
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, 1084 Columbia Avenue, Riverside, CA, 92507, USA
    Biotechnol Biofuels 5:56. 2012
    ..abstract:..
  29. doi request reprint Small-scale and automatable high-throughput compositional analysis of biomass
    Jaclyn D DeMartini
    Center for Environmental Research and Technology, University of California Riverside, 92507, USA
    Biotechnol Bioeng 108:306-12. 2011
    ..These results demonstrate the validity of the downscaled procedure for measuring biomass composition to enable the calculation of sugar yields and determination of trends in sugar release behavior in HTPH screening studies...
  30. pmc Supplementation with xylanase and β-xylosidase to reduce xylo-oligomer and xylan inhibition of enzymatic hydrolysis of cellulose and pretreated corn stover
    Qing Qing
    Center for Environmental Research and Technology, Bourns College of Engineering, University of California, Riverside, 1084 Columbia Avenue, Riverside, California 92507, USA
    Biotechnol Biofuels 4:18. 2011
    ..abstract:..
  31. pmc Composition and hydrothermal pretreatment and enzymatic saccharification performance of grasses and legumes from a mixed-species prairie
    Jaclyn D DeMartini
    Chemical and Environmental Engineering Department, University of California, Riverside, Riverside, CA 92507, USA
    Biotechnol Biofuels 4:52. 2011
    ..abstract:..
  32. doi request reprint How biotech can transform biofuels
    Lee R Lynd
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, New Hampshire 03755, USA
    Nat Biotechnol 26:169-72. 2008
    ..For cellulosic ethanol to become a reality, biotechnological solutions should focus on optimizing the conversion of biomass to sugars...
  33. ncbi request reprint Initial evaluation of simple mass transfer models to describe hemicellulose hydrolysis in corn stover
    Michael A Brennan
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, NH 03755, USA
    Appl Biochem Biotechnol 113:965-76. 2004
    ....
  34. ncbi request reprint Effect of xylan and lignin removal by batch and flowthrough pretreatment on the enzymatic digestibility of corn stover cellulose
    Bin Yang
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, New Hampshire 03755, USA
    Biotechnol Bioeng 86:88-95. 2004
    ..Cellulose digestibility for flowthrough reactors was related to lignin removal as well. These results suggest that altering lignin also affects the enzymatic digestibility of corn stover...
  35. ncbi request reprint Estimation of temperature transients for biomass pretreatment in tubular batch reactors and impact on xylan hydrolysis kinetics
    Suzanne L Stuhler
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, NH 03755, USA
    Appl Biochem Biotechnol 105:101-14. 2003
    ..These results were then used to project the relationship between deviations in yield from isothermal results and the tube radius and reaction time...
  36. ncbi request reprint Application of a depolymerization model for predicting thermochemical hydrolysis of hemicellulose
    Todd Lloyd
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, NH 03755, USA
    Appl Biochem Biotechnol 105:53-67. 2003
    ..These differences need to be resolved by gathering additional data and improving the model...
  37. ncbi request reprint Characterization of molecular weight distribution of oligomers from autocatalyzed batch hydrolysis of xylan
    Xia Li
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, NH 03755, USA
    Appl Biochem Biotechnol 105:515-22. 2003
    ....
  38. ncbi request reprint Potential synergies and challenges in refining cellulosic biomass to fuels, chemicals, and power
    Charles E Wyman
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, New Hampshire 03755, USA
    Biotechnol Prog 19:254-62. 2003
    ..However, manufacture of multiple products introduces additional technical, marketing, risk, scale-up, and other challenges that must be considered in refining of lignocellulosics...
  39. ncbi request reprint Impact of fluid velocity on hot water only pretreatment of corn stover in a flowthrough reactor
    Chaogang Liu
    Thayer School of Engineering, Dartmouth College, 800 Cummings Street, Hanover, NH 03755, USA
    Appl Biochem Biotechnol 113:977-87. 2004
    ....
  40. ncbi request reprint Predicted effects of mineral neutralization and bisulfate formation on hydrogen ion concentration for dilute sulfuric acid pretreatment
    Todd A Lloyd
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, NH 03755, USA
    Appl Biochem Biotechnol 113:1013-22. 2004
    ..Coupled with the effect of temperature on acid dissociation, these effects increase acid requirements to achieve a particular reaction rate unless minerals are removed prior to hydrolysis...
  41. ncbi request reprint Cellulase production on bagasse pretreated with hot water
    Mary Bigelow
    BC International and Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA
    Appl Biochem Biotechnol 98:921-34. 2002
    ....
  42. ncbi request reprint Coordinated development of leading biomass pretreatment technologies
    Charles E Wyman
    Dartmouth College, Hanover, NH 03755, United States
    Bioresour Technol 96:1959-66. 2005
    ..This paper introduces the project and summarizes the shared methods for papers reporting results of this research in this special edition of Bioresource Technology...
  43. ncbi request reprint Combined sugar yields for dilute sulfuric acid pretreatment of corn stover followed by enzymatic hydrolysis of the remaining solids
    Todd A Lloyd
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, NH 03755, United States
    Bioresour Technol 96:1967-77. 2005
    ..These results also suggest that enhanced hemicellulase activity could further improve xylose yields, particularly for low cellulase loadings...
  44. ncbi request reprint Comparative sugar recovery data from laboratory scale application of leading pretreatment technologies to corn stover
    Charles E Wyman
    Dartmouth College, Hanover, NH 03755, USA
    Bioresour Technol 96:2026-32. 2005
    ..However, the substantial differences in sugar release patterns in the pretreatment and enzymatic hydrolysis operations have important implications for the choice of process, enzymes, and fermentative organisms...
  45. ncbi request reprint The enhancement of xylose monomer and xylotriose degradation by inorganic salts in aqueous solutions at 180 degrees C
    Chaogang Liu
    Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA
    Carbohydr Res 341:2550-6. 2006
    ..The unidentified compounds could be formed through aqueous furfural resinification and condensation reactions that are accelerated by FeCl3, but the actual mechanisms are still not clear...
  46. ncbi request reprint The impact of dilute sulfuric acid on the selectivity of xylooligomer depolymerization to monomers
    Rajeev Kumar
    Thayer School of Engineering, Dartmouth College, NH 03755, USA
    Carbohydr Res 343:290-300. 2008
    ..This study also revealed that the source of water and the material used for the construction of the reactor impacted xylose degradation kinetics...
  47. ncbi request reprint BSA treatment to enhance enzymatic hydrolysis of cellulose in lignin containing substrates
    Bin Yang
    Thayer School of Engineering, Dartmouth College, 8000 Cummings Hall, Hanover, New Hampshire 03755, USA
    Biotechnol Bioeng 94:611-7. 2006
    ..The results are consistent with non-specific competitive, irreversible adsorption of BSA on lignin and identify promising strategies to reduce enzyme requirements for cellulose hydrolysis...
  48. ncbi request reprint Changes in the enzymatic hydrolysis rate of Avicel cellulose with conversion
    Bin Yang
    Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA
    Biotechnol Bioeng 94:1122-8. 2006
    ....
  49. ncbi request reprint Sugar monomer and oligomer solubility: data and predictions for application to biomass hydrolysis
    Matthew C Gray
    Thayer School of Engineering, Dartmouth College, 800 Cumming Road, Hanover, NH 03755, USA
    Appl Biochem Biotechnol 105:179-93. 2003
    ....
  50. ncbi request reprint Biotechnology for fuels and chemicals--past, present, and future
    Charles D Scott
    Oak Ridge National Laboratory, Oak Ridge, TN, USA
    Appl Biochem Biotechnol 113:761-3. 2004