Detoxification of sugarcane-derived hemicellulosic hydrolysate using a lactic acid producing strain.

Autor: Alves de Oliveira R; Laboratory of Optimization, Design and Advanced Process Control, School of Chemical Engineering, University of Campinas (Unicamp), Avenida Albert Einstein 500, Campinas, 13083-852, Brazil; National Laboratory of Bioethanol Science and Technology (CTBE), Rua Giuseppe Máximo Scolfaro 10000, Campinas, 13083-100, Brazil; Leibniz Institute for Agricultural Engineering and Bioeconomy e.V. (ATB), Max-Eyth-Allee 100, Potsdam, 14469, Germany. Electronic address: r153683@dac.unicamp.br., Vaz Rossell CE; Interdisciplinary Center of Energy Planning (NIPE), University of Campinas (Unicamp), Rua Cora Coralina, 330, Campinas, 13083-896, Brazil., Venus J; Leibniz Institute for Agricultural Engineering and Bioeconomy e.V. (ATB), Max-Eyth-Allee 100, Potsdam, 14469, Germany., Cândida Rabelo S; CNPEM - Centro Nacional de Pesquisa em Energia e Materiais | CTBE - Laboratório Nacional de Ciência e Tecnologia do Bioetanol Rua Giuseppe Máximo Scolfaro, nº 10.000 - Bairro Guará - Distrito de Barão Geraldo, Campinas - SP - Brazil, CEP 13083-970. Electronic address: sarita.rabelo@bioetanol.org.br., Maciel Filho R; Laboratory of Optimization, Design and Advanced Process Control, School of Chemical Engineering, University of Campinas (Unicamp), Avenida Albert Einstein 500, Campinas, 13083-852, Brazil.
Jazyk: angličtina
Zdroj: Journal of biotechnology [J Biotechnol] 2018 Jul 20; Vol. 278, pp. 56-63. Date of Electronic Publication: 2018 May 04.
DOI: 10.1016/j.jbiotec.2018.05.006
Abstrakt: Furfural and HMF are known for a negative impact in different bioprocesses, including lactic acid fermentation. There are already some methods described to remove these inhibitory compounds from the hydrolysates. However, these methods also reduce the yield of sugars from the hydrolysis and increase the process costs. In this work, the detoxification of sugarcane-derived hemicellulosic hydrolysate was performed by Lactobacillus plantarum during the fermentation time. At the end of the fermentation, a decrease of 98% of furfural and 86% of HMF and was observed, with a final lactic acid titer of 34.5 g/L. The simultaneous fermentation and bio-detoxification simplify the process and reduce operational costs, leading to economic competitiveness of second-generation feedstock for lactic acid production.
(Copyright © 2018 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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