Applied Biochemistry and Biotechnology

, 137:529

Bacterial cellulose production by Gluconacetobacter sp. PKY5 in a rotary biofilm contactor

Authors

  • Yong-Jun Kim
    • Department of Material Chemical and Biochemical EngineeringChonnam National University
  • Jin-Nam Kim
    • Department of Material Chemical and Biochemical EngineeringChonnam National University
  • Young-Jung Wee
    • School of Biological Sciences and TechnologyChonnam National University
  • Don-Hee Park
    • School of Biological Sciences and TechnologyChonnam National University
    • School of Biological Sciences and TechnologyChonnam National University
Session 3

DOI: 10.1007/s12010-007-9077-8

Cite this article as:
Kim, Y., Kim, J., Wee, Y. et al. Appl Biochem Biotechnol (2007) 137: 529. doi:10.1007/s12010-007-9077-8

Abstract

A rotary biofilm contactor (RBC) inoculated with Gluconacetobacter sp. RKY5 was used as a bioreactor for improved bacterial cellulose production. The optimal number of disk for bacterial cellulose production was found to be eight, at which bacterial cellulose and cell concentrations were 5.52 and 4.98 g/L. When the aeration rate was maintained at 1.25 vvm, bacterial cellulose and cell concentrations were maximized (5.67 and 5.25 g/L, respectively). The optimal rotation speed of impeller in RBC was 15 rpm. When the culture pH in RBC was not controlled during fermentation, the maximal amount of bacterial cellulose (5.53 g/L) and cells (4.91 g/L) was obtained. Under the optimized culture conditions, bacterial cellulose and cell concentrations in RBC reached to 6.17 and 5.58 g/L, respectively.

Index Entries

Bacterial cellulosebioreactorfermentationGluconacetobacteroptimizationrotary biofilm contactor

Copyright information

© Humana Press Inc 2007