A re-look at the biochemical strategies to enhance butanol production |
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| Affiliation: | 1. Institut National de la Recherche Scientifique, Centre-Eau Terre Environnement, 490, Rue de la Couronne, Québec (QC) G1K 9A9, Canada;2. University of the Basque Country (UPV/EHU), Department of Chemical and Environmental Engineering, Faculty of Engineering, Alameda Urkijo s/n, 48013 Bilbao, Spain;3. Centre de Recherche Industrielle du Québec (CRIQ), Québec (QC), Canada;1. School of Forest Sciences, University of Eastern Finland, P.O. Box 111, FI80101 Joensuu, Finland;2. College of Forestry, Northwest A&F University, 3 Taicheng Road, 712100 Yangling, China;3. School of Pharmacy, University of Eastern Finland, P.O. Box 1627, FI70211 Kuopio, Finland;4. Department of Biology, University of Eastern Finland, P.O. Box 111, FI80101 Joensuu, Finland;1. Department of Chemical Engineering, Auburn University, 212 Ross Hall, Auburn, AL 36849, United States;2. Department of Biomedical, Chemical and Environmental Engineering, University of Cincinnati, 2901 Woodside Drive, Cincinnati, OH 45221, United States;3. Forest Products Laboratory and Center for Bioenergy and Bioproducts, Auburn University, 520 Devall Drive, Auburn, AL 36849, United States;1. Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale – Università degli Studi di Napoli Federico II, P.le V. Tecchio 80, 80125 Napoli, Italy;2. Istituto di Ricerche sulla Combustione – Consiglio Nazionale delle Ricerche, P.le V. Tecchio 80, 80125 Napoli, Italy;1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, People’s Republic of China;2. CAS Key Laboratory of Renewable Energy, Guangzhou 510640, People’s Republic of China;3. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, People’s Republic of China;4. R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Xuyi 211700, People’s Republic of China;5. University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China |
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| Abstract: | Butanol produced from renewable feedstock is defined as an emerging biofuel and biochemical. Research efforts made during the last three decades on biochemical production of butanol via conventional ABE (acetone-ethanol-butanol) fermentation has tried to bring biobutanol close to competition with petrobutanol. However, each new effort of development has been often countered by new challenges, confining biobutanol production mostly to the laboratory scale. This review provides a systematic, comparative analysis of different steps in biochemical production of butanol and identifies the counteractive aspects and challenges to overcome. A special emphasis is given on process inhibitors, applied detoxification techniques, chemical supplements and research & development in industry in order to enhance and update ABE fermentation and make it cost effective. Biobutanol future lies in utilization of inexpensive cellulose enriched lignocellulosic hydrolysates and hyper-butanol producing bacteria, combined with specific detoxification techniques and followed by efficient continuous fermentation technologies together with in situ product recovery. |
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