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Second-Generation Bioethanol Production through a Simultaneous Saccharification-Fermentation Process Using Kluyveromyces Marxianus Thermotolerant Yeast

In: Special Topics in Renewable Energy Systems

Author

Listed:
  • Melchor Arellano-Plaza
  • Jorge A. Mejia-Barajas
  • Mariana Alvarez-Navarrete
  • Alfredo Saavedra-Molina
  • Jesus Campos-Garcia
  • Uri Valenzuela
  • Lorena Amaya-Delgado

Abstract

Due to the present renewable fuels demand increase, reduction of second-generation bioethanol production cost is pursued, since it is considered the most promising biofuel, but not yet economically viable. A proposed solution is its production through a simultaneous saccharification and fermentation process (SSF); however, it is necessary to apply temperatures above 40°C, which reduce the viability of traditional ethanologenic yeasts. As consequence, the use of thermotolerant ethanologenic yeast has been suggested, among which the yeast Kluyveromyces marxianus stands out. This chapter addresses the production of second-generation bioethanol through the SSF process, emphasizing the potential of K. marxianus to transform lignocellulosic biomass as agave bagasse. As result, it is proposed to direct the second-generation bioethanol production to the SSF process employing thermotolerant yeasts, to increase process productivity, and addressing the economic barriers.

Suggested Citation

  • Melchor Arellano-Plaza & Jorge A. Mejia-Barajas & Mariana Alvarez-Navarrete & Alfredo Saavedra-Molina & Jesus Campos-Garcia & Uri Valenzuela & Lorena Amaya-Delgado, 2018. "Second-Generation Bioethanol Production through a Simultaneous Saccharification-Fermentation Process Using Kluyveromyces Marxianus Thermotolerant Yeast," Chapters, in: Ebubekir Yuksel & Abdulkerim Gok & Murat Eyvaz (ed.), Special Topics in Renewable Energy Systems, IntechOpen.
    • Handle: RePEc:ito:pchaps:158809
    DOI: 10.5772/intechopen.78052
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    More about this item

    Keywords

    bioethanol; simultaneous saccharification and fermentation (SSF); thermotolerant yeasts; Kluyveromyces marxianus; agave bagasse;
    All these keywords.

    JEL classification:

    • Q20 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - General
    • Q40 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Energy - - - General

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