Skip to main content
Log in

Auto-hydrolysis of lignocellulosics under extremely low sulphuric acid and high temperature conditions in batch reactor

Biotechnology and Bioprocess Engineering Aims and scope Submit manuscript

Abstract

Batch reactors were employed to investigate the kinetics of cellulose hydrolysis under extremely low acid (ELA) and high temperature condition. The sawdust was pretreated by Autohydrolysis prior to the batch reaction. The maximum yield of glucose obtained from the batch reactor experiment was about 70% for the pretreated sawdust, this occurred at 210 and 220°C. The maximum glucose yield from the untreated sawdust was much lower at these temperatures, about 55%. The maximum yields of glucose from the lignocellulosics were obtained between 15th and 20th minutes after which gradual decrease was observed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

References

  1. Boussaid, A, J. Robinson, Yi-jin Cai, D. J. Gregg, and J. N. Saddler (1999) Fermentability of the hemicellulosederived sugars from steam-exploded softwood (Douglas Fir).Biotechnol. Bioeng. 64: 284–289.

    Article  CAS  Google Scholar 

  2. Zerbe, J. I., and A. J. Baker (1987) Invertigation of fundamentals of two-stage, dilute sulfurio acichydrolysis of wood. pp. 927–947 In: K. Donald (ed.).Energy from Biomass and Wastes X. Institute of Gas Technology, Chicago, USA.

    Google Scholar 

  3. Layokun, S. K. (1985) Ethanol production from cellulose and holocellulose byPachusole tannophilus JNSChE 4: 26–35.

    Google Scholar 

  4. Solomon, B. O., S. K. Layokun, P. K. Nwesigwe, and P. O. Olutiola (1990) Hydrolysis of sawdust by cellulase enzyme derived fromAspergillus flavus Linn Isolate NSPR 101 beyond the initial fast rate period.JNSChE. 9: 1–2.

    Google Scholar 

  5. Ojumu, TV, B. O. Solomon, E. Betiku, and S. K. Layokun (2003) Cellulase production byAspergillus flavus Lin isolate NSPR 101 fermented in sawdust, baggasse and comcob.Afr. J. Biotechnol. 2: 150–152.

    CAS  Google Scholar 

  6. Badmus M. A. O. (2002) Auto-hydrolysis production of glucose from palm tree trunk.NJISS 1: 1–4.

    Google Scholar 

  7. Jeffries, T. W., and Y. Y. Lee (1999). Feedstocks: New supplies and processing.Appl. Biochem. Biotechnol. 77–79: 3–4.

    Article  Google Scholar 

  8. Kim, J. S., Y. Y. Lee, and R. W. Torget (2001) Cellulose hydrolysis under extremely low sulfuric acid and hightemperature conditions.Appl. Biochem. Biotechnol. 91–93: 331–340.

    Article  Google Scholar 

  9. Fan, L. T., M. M. Gharpuray, and Y. B. H. Lee (1987)Cellulose Hydrolysis. Vol. 3, pp. 1–68. Springer-Verlag, Berlin, Germany.

    Google Scholar 

  10. Vinzant, T. B., L. Ponfick, N. Nagle, C. I. Ehrman, J. B. Reynolds, and M. E. Himmel (1994) SSF Comparison of selected woods from southern sawmills.Appl. Biochem. Biotechnol. 45/46: 611–626.

    Article  Google Scholar 

  11. Conner, A. H., B. F. Wood, C. G. Hill, Jr., and J. F. Harris (1985) Kinetic model for the dilute sulfuric acid saccharification of lignocellulose.J. Wood Chem. Technol. 5: 461–489.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Tunde Victor Ojumu.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ojumu, T.V., AttahDaniel, B.E., Betiku, E. et al. Auto-hydrolysis of lignocellulosics under extremely low sulphuric acid and high temperature conditions in batch reactor. Biotechnol. Bioprocess Eng. 8, 291–293 (2003). https://doi.org/10.1007/BF02949219

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02949219

Keywords

Navigation