Optimization of fermentation conditions for production of exopolysaccharide by Bacillus polymyxa

Cited 62 time in scopus
Metadata Downloads
Title
Optimization of fermentation conditions for production of exopolysaccharide by Bacillus polymyxa
Author(s)
In Young Lee; Weon Taek Seo; Guk Jin Kim; Mi Kyung Kim; S G Ahn; Gi Seok Kwon; Young Hoon Park
Bibliographic Citation
Bioprocess Engineering, vol. 16, pp. 71-75
Publication Year
1997
Abstract
Production of exopolysaccharide (EPS) from a strain of Bacillus polymyxa was studied. Sucrose and potassium nitrate were found to be efficient carbon and nitrogen sources, respectively, for the production of the EPS. EPS production increased with the increase of sucrose concentration, probably due to the facilitated carbon uptake. Optimal pH was 7-8, and a sufficient supply of oxygen was needed for the EPS production. It was noted that the EPS synthesis by this B. polymyxa was growth-associated, indicating that a sufficient supply of nutrients was required for a high production of the EPS. As high as 54 g/l of EPS with a yield of 63% (g EPS/g sucrose) was obtained in 48 h of fed-batch cultivation with intermittent feeding of sucrose and potassium nitrate.
ISSN
0178-515X
Publisher
Springer
DOI
http://dx.doi.org/10.1007/s004490050290
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
Files in This Item:
  • There are no files associated with this item.


Items in OpenAccess@KRIBB are protected by copyright, with all rights reserved, unless otherwise indicated.