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Enhanced production of β-glucan from Botryosphaeria rhodina using emulsified media or fan impellers

Paper ID Volume ID Publish Year Pages File Format Full-Text
17976 42708 2007 10 PDF Available
Title
Enhanced production of β-glucan from Botryosphaeria rhodina using emulsified media or fan impellers
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 1.4 m s−1 resulted in less viscous culture broths and most advantageous values of the β-glucan concentration (18.7 ± 0.3 kg m−3), and yield coefficients for β-glucan on mycelial biomass formed (5.1 ± 0.8 g g−1) and specific power consumed (23.3 ± 0.4 g W−1).

Keywords
Apparent shear viscosity; β-Glucan; Botryosphaeria rhodina; Fan impeller; Gassed power input; Highly viscous liquids; Paraffin oil; Production rate; Yield coefficients
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Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 41, Issues 1–2, 2 July 2007, Pages 111–120
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us