The Effects of Mixing Conditions on the Production of Microbial Cellulose by Acetobacter xylinum

다국어 초록 (Multilingual Abstract)

Microbial cellulose has many potential applications due to its excellent physical properties. The production of cellulose from A. xylinum in submerged culture is, however, beset with numerous problems. The most difficult one has been the appearance of spontaneous mutants deficient of cellulose producing ability under shaking culture conditions. Thus genetic instability of Acetobacter xylinum under shaking culture condition made developing a stable mutant major research interest in recent years. To find a proper type of bioreactor for the production of microbial cellulose, several forms of production system were designed, manufactured, and tested for the suitability. Among tested, a reactor system with planar type impellar and bottom sparging system was found to produce microbial cellulose without generating cellulose minus mutants.

목차 (Table of Contents)

• REFERENCES = 170
• 1. Microorganism = 170
• 2. Medium and Culture Methods = 170
• 3. Analytical Methods = 170
• 4. Bioreactor Operation = 170
• MATERIALS AND METHODS =170
• RESULTS AND DISCUSSIONS = 171
• 1. Production of Microbial cellulose in a normal bioreactor with Rushton type flat-blade disk turbine as an impeller = 171
• 2. Production of Microbial cellulose in a air-lift reactor = 172
• 3. Design of a bioreactor system with surface aeration = 172
• 4. Combining bottom sparger with impeller = 172
• REFERENCES = 172