Perspectives and Progress in Bioethanol Processing and Social Economic Impacts

Mario Alberto Yaverino-Gutiérrez, Alán Yazid Chávez-Hita Wong, Lizbeth Alejandra Ibarra-Muñoz, Ana Cristina Figueroa Chávez, Jazel Doménica Sosa-Martínez, Ana Sofia Tagle-Pedroza, Javier Ulises Hernández-Beltran, Salvador Sánchez-Muñoz, Julio César dos Santos, Silvio Silvério da Silva () and Nagamani Balagurusamy ()
Additional contact information
Mario Alberto Yaverino-Gutiérrez: Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón-Matamoros Highways km 7.5, Torreón 27276, Mexico
Alán Yazid Chávez-Hita Wong: Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón-Matamoros Highways km 7.5, Torreón 27276, Mexico
Lizbeth Alejandra Ibarra-Muñoz: Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón-Matamoros Highways km 7.5, Torreón 27276, Mexico
Ana Cristina Figueroa Chávez: Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón-Matamoros Highways km 7.5, Torreón 27276, Mexico
Jazel Doménica Sosa-Martínez: Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón-Matamoros Highways km 7.5, Torreón 27276, Mexico
Ana Sofia Tagle-Pedroza: Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón-Matamoros Highways km 7.5, Torreón 27276, Mexico
Javier Ulises Hernández-Beltran: Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón-Matamoros Highways km 7.5, Torreón 27276, Mexico
Salvador Sánchez-Muñoz: Bioprocesses and Sustainable Products Laboratory, Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), Lorena 12602-810, Brazil
Julio César dos Santos: Bioprocesses and Sustainable Products Laboratory, Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), Lorena 12602-810, Brazil
Silvio Silvério da Silva: Bioprocesses and Sustainable Products Laboratory, Department of Biotechnology, Engineering School of Lorena, University of São Paulo (EEL-USP), Lorena 12602-810, Brazil
Nagamani Balagurusamy: Bioremediation Laboratory, Faculty of Biological Sciences, Autonomous University of Coahuila, Torreón-Matamoros Highways km 7.5, Torreón 27276, Mexico

Sustainability, 2024, vol. 16, issue 2, 1-31

Abstract: The liquid biofuel bioethanol is widely produced worldwide via fermenting sugars extracted from a variety of raw materials, including lignocellulose biomass, one of the world’s most abundant renewable resources. Due to its recalcitrant character, lignocellulose is usually pretreated by mechanical, chemical, and biological methods to maximize sugar recovery. Pretreated lignocellulose biomass undergoes a fermentation process performed sequentially or simultaneously to saccharification. The different fermentation strategies (e.g., separate or simultaneous hydrolysis and fermentation or co-fermentation) and conditions (e.g., inoculum type load, agitation, temperature, and pH) affect ethanol yield. Genetic modification of the inoculum has been focused recently to improve ethanol tolerance and as well as to use different sugars to enhance the performance of the microorganisms involved in fermentation. Nonetheless, these improvements result in a substantial increase in costs and have certain environmental costs. This review offers an overview of advancements in bioethanol production, with a primary focus on lignocellulosic feedstock, while also considering other feedstocks. Furthermore, it provides insights into the economic, social, and environmental impacts associated with bioethanol production.

Keywords: lignocellulosic biomass; bioethanol; metabolic stress; strain engineering; life cycle assessment (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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