Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (2): 502-517.doi: 10.1016/j.cjche.2019.05.012

• Energy, Resources and Environmental Technology • Previous Articles     Next Articles

Advances of macroalgae biomass for the third generation of bioethanol production

Inn Shi Tan1, Man Kee Lam2,3, Henry Chee Yew Foo1, Steven Lim4, Keat Teong Lee5   

  1. 1 Department of Chemical Engineering, Curtin University, Sarawak Campus CDT 250, 98009 Miri, Sarawak, Malaysia;
    2 Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia;
    3 Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia;
    4 Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, 43000, Selangor, Malaysia;
    5 School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia
  • Received:2019-01-09 Revised:2019-05-27 Online:2020-02-28 Published:2020-05-21
  • Contact: Inn Shi Tan, Man Kee Lam;
  • Supported by:
    The authors would like to acknowledge the financial support received from the Ministry of Higher Education (MOHE) Malaysia through Fundamental Research Grant Scheme Malaysia's Rising Star Awards 2016 (FRGS MRSA 2016) with cost centre 203/PJKIMIA/607136. Support from Ministry of Education Malaysia through HiCOE award to CBBR is duly acknowledged.

Abstract: In recent years, utilization of renewable sources for biofuel production is gaining popularity due to growing greenhouse gas (GHG) emissions which causes global warming. There has been a great effort in exploring alternative feedstock for bioethanol production. In this context, the production of third-generation bioethanol from macroalgae has emerged as an alternative feedstock to food crop-based starch and lignocellulosic biomass. This is mainly due to the fast growth rate of macroalgae, no competition with agricultural land, high carbohydrate content and relatively simple processing steps compared to lignocellulosic biomass. This review paper provides an insight of recent innovative approaches for macroalgae bioethanol production, including conventional and advanced hydrolysis process to produce fermentable sugar, various fermentation technologies, economic analysis and life cycle assessment. With the current technology maturity, efficient utilization of macroalgae as sustainable source for bioethanol and other value-added chemicals production could be achieved in the near future.

Key words: Macroalage, Hydrolysis, Biomass, Fermentation, Bioethanol