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Inclusion of solid particles in bacterial cellulose.
G Serafica1, R Mormino, H Bungay
1H.P.Isermann Department of Chemical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180-3590, USA.
Applied Microbiology and Biotechnology
|May 22, 2002
Summary
Bacterial cellulose pellicles can be produced faster using a rotating disk bioreactor. This method efficiently traps particles, creating novel composite materials with tunable properties based on particle characteristics and processing conditions.
Area of Science:
- Biotechnology
- Materials Science
Background:
- Bacterial cellulose (BC) exists in various forms, including pellicles, which are dense gels.
- Traditional pellicle production via surface culture is time-consuming (12-20 days).
Purpose of the Study:
- To investigate an efficient method for bacterial cellulose pellicle production.
- To explore the formation of bacterial cellulose-based composite materials.
Main Methods:
- Utilized a rotating disk bioreactor for BC pellicle cultivation.
- Incorporated particles into the BC gel during formation.
- Varied particle size, geometry, rotational speed, and suspension concentration.
Main Results:
- The rotating disk bioreactor significantly reduced production time to approximately 3.5 days.
- Particles were successfully entrapped within the forming BC pellicle.
- Particle incorporation rates were influenced by particle properties and bioreactor conditions.
Conclusions:
- Rotating disk bioreactors offer a highly efficient method for BC pellicle production.
- This approach enables the creation of novel bacterial cellulose-particle composite materials.
- The properties of these composites can be controlled by adjusting particle characteristics and cultivation parameters.