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Empirical modeling of eucalyptus wood processing

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Abstract

Eucalyptus globulus wood samples were treated with NaOH solutions in order to obtain substrates highly susceptible to enzymatic hydrolysis. The experiments performed in the extraction and hydrolysis stages followed an incomplete factorial design. Temperature, NaOH concentration and extraction time were considered as independent variables. Their influence on five dependent variables (defined to measure the extraction yield, the chemical composition of processed samples and the enzymatic conversion) was assessed using second order, empirical models. In addition to the experimental results, other aspects related to the extraction selectivity are discussed.

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References

  1. Myerly, R. S.; Nicholson, M. D.; Katzen, R.; Taylor, J. M.: The forest refinery. Chemtech (1981) 186–192

  2. Rijkens, B. A.: Hydrolyses processes for lignocellulosic material. In: CECD Workshop Cellulose Programme. Braunschweig, 1984

  3. Koukios, E. G.; Valkanas, G. N.: Process for the chemical separation of the three main components of lignocellulosic biomass. Ind. Eng. Chem. Prod. Res. Dev. (1982) 309–314

  4. Johansson, A.; Aaltonen, O.; Ylinen, P.: Organosolv lignin pulping. Methods and pulp properties. Biomass (1987) 45–65

  5. David, G; Fornassier, R.; Lejong, W.; Vanlautem, N.: Pretreatment of Eucalyptus wood with sodium hypochloryte and enzymatic hydrolysis with cellulases of Trichoderma viride. J. Appl. Polym. Sci. (1988) 29–41

  6. Browning, B. L. In: Methods of Wood Chemistry. John Wiley & Sons. New York, 1967

    Google Scholar 

  7. Vázquez, G.; Antorrena, G.; Parajó, J. C.: Studies on the utilization of Pinus pinaster bark. 1. Chemical constituents. Wood Sci. Technol. (1987) 65–74

  8. Vázquez, G.; Parajó, J. C.; Antorrena, G.; Thonart, Ph.; Paquot, M.: Sugars from pine bark by enzymatic hydrolysis: Effect of sodium chlorite treatments. Wood Sci. Technol. (1987) 167–178

  9. Mandels, M.; Andreotti, R.; Roche C.: Measurement of saccharifying cellulose. Biotechnol. Bioeng. Symp. (1976) 21–33

  10. Paquot, M.; Thonart, Ph.: Hydrolyse enzymatique de la cellulose regenerée. Holzforschung (1982) 177–181

  11. Dillner, B.; Ljunger, O.; Herud, A.; Thune-Larsen, E.: The breeding of Eucalyptus globulus on the basis of wood density, chemical composition and growth rate. Symp. Prod. Ind. Util. Eucalyptus. Lisbon, March, 1970

  12. Poirier, M. G.; Ahmed, A.; Grandmaison, J. L.; Kaliaguine, S. C. E: Supercritical gas extraction of wood with ethanol in a tubular reactor. Ind. Eng. Chem. Res. (1987) 1738–1743

  13. Vázquez, D.; Lage, M. A.; Parajó, J. C.; Vázquez, G.: Fractionation of Eucalyptus wood in acetic acid media. Biores. Technol. (in press)

  14. Simionescu, C. I.; Popa, V. I.: Contribution to the valorification of beech wood bark. Cellul. Chem. Technol. (1987) 279–287

  15. Akhnazarova, S.; Kafarov, V., In: Experiment optimization in Chemistry and Chemical Engineering. MIR Publishers. Moscow, 1982

  16. Box, G. E. P.; Hunter, W. G.; Hunter, J. S., In: Estadistica para investigadores. Ed. Reverté. Barcelona, 1988

    Google Scholar 

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Authors and Affiliations

  1. University of Vigo (Campus de Orense), Department of Chemical EngineeringFaculty of Sciences, Las Lagunas, 32004, Orense, Spain

    J. C. Parajó (Professor of Chemical Engineering) & J. L. Alonso (Graduate student)

  2. University of Santiago de Compostela, Department of Analytical Chemistry Nutrition and Bromatology Campus Universitario Santiago de Compostela, La Coruña, Spain

    M. A. Lage & D. Vázquez

Authors
  1. J. C. Parajó
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  2. J. L. Alonso
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  3. M. A. Lage
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  4. D. Vázquez
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Parajó, J.C., Alonso, J.L., Lage, M.A. et al. Empirical modeling of eucalyptus wood processing. Bioprocess Engineering 8, 129–136 (1992). https://doi.org/10.1007/BF01254228

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  • DOI: https://doi.org/10.1007/BF01254228

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