Abstract
The rheological properties of aqueous solutions of levan polysaccharide from Bacillus sp. were studied at 20.0 °C over a wide range of concentrations. At low concentrations the solutions were Newtonian, becoming shear thinning at higher concentrations. The intrinsic viscosity of this levan was found to be 0.14 dL/g, which is close to that of other levans. However, whereas other polysaccharides exhibit up to three concentrations regimes (dilute, semi-dilute, and concentrated) in a double logarithmic plot of the specific viscosity versus space occupancy, this levan exhibits four distinct concentration regions, at least three of which are linear. To the best of our knowledge, this is the first report of a solution of any kind exhibiting more than three distinct regions in this type of plot.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.