Abstract
The dilute-acid hydrolysis of sugarcane bagasse was optimized using a statistical experimental design resulting in hydrolysates containing 57.25 g/L of xylose, which were fermented with a high inoculum concentration (10 g/L of the yeast Candida guilliermondii IM/UFRJ 50088). The addition of urea reduced the time of conversion (t C) to 75 h (without nitrogen source addition t C>127 h), and, consequently, improving the rates of xylitol bioproduction. Fermentator experiments, using the optimized conditions, resulted in enhanced conversion rates, reducing t C to 30 h. The stability of the yeast in the hydrolysate was also verified in a 480-h cultivation.
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Lavarack, B.P., Griffin, G.J., and Rodman, D. (2000), Catalysis Today 63, 257–265.
Neureiter, M., Danner, H., Thomasser, C., Saidi, B., and Braun, R. (2002), Appl. Biochem. Biotechnol. 98–100, 49–58.
Lee, J. (1997), J. Biothecnol. 56, 1–24.
Hÿvonen, L., Koivistoinen, P., and Voirol, F. (1982), Adv. Food Res. 28, 373–403.
Scheinin, A., Mäniken, K.K., and Ylitalo, K. (1975), Acta Odontol. Scand. 33, 383–412.
Ylikari, R. (1979) Adv. Food. Res. 25, 159–180.
Cuzens, J.C. and Miller, J.R. (1997) Renewable Energy 10, 285–290.
Barbosa, M.F.S., Medeiros, M.B., Mancilha, I.M., Schneider, H., and Lee, H. (1998), J. Ind. Microbiol. 3, 241–251.
Palmqvist, E. and Hahn-Hägerdall, B. (2000), Bioresour. Technol. 74, 17–24.
Faria, L.F.F., Gimenez, M.A.P., Nobrega, R., and Pereira N. Jr., (2002) Appl. Biochem. Biotechnol. 98–100, 449–458.
Couto, M.A.P.G. (2002), DSc thesis, Post Graduate Program in Chemical and Biochemical Processes Technology, School of Chemistry, UFRJ, Rio de Janeiro, Brazil.
Aguiar, W.B., Jr., Faria, L.F.F., Couto, M.A.P.G., Araujo, O.Q.F., and Pereira N. Jr., (2002), Biochem. Eng. J. 3608, 1–11.
Lu, J., Tsai, L.B., Gong, C. S., and Tsao, G.T. (1995), Biothecnol. Lett. 17, 167–170.
Sosa, E., Aranda, C., Riego, L., et al. (2003), Biochem. Biophys. Res. Commun. 310, 1175–1180.
ter Schure, E.G., van Riel, N. A. W., and Verrips, T. (2000), FEMS Microbiol. Rev. 24, 67–83.
Messenguy, F. and Dubois, E. (2000), Food Technol. Biotechnol. 38, 277–285.
Rousselet, G., Simon, M., Ripoche, P., and Buhler, J. -M. (1995), FEBS Lett. 359, 215–219.
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Fogel, R., Garcia, R.R., Oliveira, R.d.S. et al. Optimization of acid hydrolysis of sugarcane bagasse and investigations on its fermentability for the production of xylitol by Candida guilliermondii . Appl Biochem Biotechnol 122, 741–752 (2005). https://doi.org/10.1385/ABAB:122:1-3:0741
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DOI: https://doi.org/10.1385/ABAB:122:1-3:0741