11. Advances in Lignocellulosic Bioethanol

  1. Shang-Tian Yang1,
  2. Hesham A El-Enshasy2 and
  3. Nuttha Thongchul3
  1. Reeta Rani Singhania,
  2. Parameswaran Binod and
  3. Ashok Pandey

Published Online: 12 JUL 2013

DOI: 10.1002/9781118642047.ch11

Bioprocessing Technologies in Biorefinery for Sustainable Production of Fuels, Chemicals, and Polymers

Bioprocessing Technologies in Biorefinery for Sustainable Production of Fuels, Chemicals, and Polymers

How to Cite

Singhania, R. R., Binod, P. and Pandey, A. (2013) Advances in Lignocellulosic Bioethanol, in Bioprocessing Technologies in Biorefinery for Sustainable Production of Fuels, Chemicals, and Polymers (eds S.-T. Yang, H. A. El-Enshasy and N. Thongchul), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781118642047.ch11

Editor Information

  1. 1

    William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, USA

  2. 2

    Institute of Bioproduct Development (IBD), Universiti Teknologi Malaysia (UTM), Johor Bahru, Johor, Malaysia

  3. 3

    Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Bangkok, Thailand

Publication History

  1. Published Online: 12 JUL 2013

ISBN Information

Print ISBN: 9780470541951

Online ISBN: 9781118642047

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Keywords:

  • consolidated bioprocessing (CBP);
  • enzymatic hydrolysis;
  • lignocellulosic bioethanol;
  • lignocellulosic biomass;
  • pretreatment;
  • separate hydrolysis and fermentation (SHF);
  • simultaneous saccharification and fermentation (SSF)

Summary

Ethanol accounts for the majority of biofuels worldwide. The conventional process for producing ethanol from lignocellulosic biomass includes the following four main steps: pretreatment, enzymatic hydrolysis, fermentation, and distillation-rectification-dehydration. Using modern biotechnological approaches, the conversion of lignocellulosic biomass into its precursor molecule glucose is a complex process but is still of fundamental significance. However, due to technological gaps, sufficient utilization of renewable energy sources is still pending. This chapter discusses the various biotechnological approaches to overcoming these gaps. Three approaches are being studied for the production of liquid biofuels from biomass with cellulase. These approaches are separate hydrolysis and fermentation (SHF), simultaneous saccharification and fermentation (SSF), and consolidated bioprocessing (CBP). Lignocellulosic biomass is the only foreseeable source of raw materials for renewable energy.