Immobilized cells cultivated in semi-continuous mode in a fluidized bed reactor for xylitol production from sugarcane bagasse

Júlio C. Santos, Silvio S. Silva, Solange I. Mussatto, Walter de Carvalho, Mario A. A. Cunha

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Xylitol production from sugarcane bagasse hemicellulosic hydrolyzate was evaluated in a fluidized bed reactor operated in semi-continuous mode, using cells immobilized on porous glass. The fermentative process was performed during five successive cycles of 72 h each one. The lowest xylitol production occurred in the first cycle, where a high cell concentration (12 g l−1) was observed. In the subsequent cycles the xylitol concentration was ever increasing due to the cells adaptation to the medium. In the last one, 18 g xylitol l−1 was obtained with a yield factor of 0.44 g g−1 and volumetric productivity of 0.32 g l−1 h−1.
Original languageEnglish
JournalWorld Journal of Microbiology and Biotechnology
Volume21
Issue number4
Pages (from-to)531-535
ISSN0959-3993
DOIs
Publication statusPublished - 2005
Externally publishedYes

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