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Enhanced production of β-glucan from Botryosphaeria rhodina using emulsified media or fan impellers
- Source :
-
Enzyme & Microbial Technology . Jul2007, Vol. 41 Issue 1/2, p111-120. 10p. - Publication Year :
- 2007
-
Abstract
- Abstract: In this work the production of an extra-cellular β-glucan by Botryosphaeria rhodina DABAC P82, previously studied in a conventional bench-top stirred bioreactor, was enhanced by resorting to two different strategies consisting of dispersing different volumetric fractions of paraffin oil into the culture broth or replacing the six flat-blade Rushton turbines with 45° pitched four-blade open style (fan) turbines with different impeller-to-vessel diameter ratios (D/T). Use of fan turbines with D/T =0.54 at a tip impeller speed of 1.4ms−1 resulted in less viscous culture broths and most advantageous values of the β-glucan concentration (18.7±0.3kgm−3), and yield coefficients for β-glucan on mycelial biomass formed (5.1±0.8gg−1) and specific power consumed (23.3±0.4gW−1). [Copyright &y& Elsevier]
- Subjects :
- *HYDRAULIC machinery
*TURBOMACHINES
*BIOLOGY
*BIOMASS
Subjects
Details
- Language :
- English
- ISSN :
- 01410229
- Volume :
- 41
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Enzyme & Microbial Technology
- Publication Type :
- Academic Journal
- Accession number :
- 25034113
- Full Text :
- https://doi.org/10.1016/j.enzmictec.2006.12.008