Bioconversion of waste cellulose by using an attrition bioreactor
1Chemical Engineering Department, Cleveland State University, Cleveland, Ohio 44115, USA.
Biotechnology and Bioengineering
|January 1, 1983
Summary
A novel attrition bioreactor significantly enhances enzymatic cellulose saccharification rates and extent using mechanical wet milling. This innovative approach improves cellulose hydrolysis efficiency without substantial enzyme deactivation.
Area of Science:
- Biotechnology
- Biochemical Engineering
- Renewable Energy
Background:
- Conventional enzymatic saccharification of cellulose faces limitations in rate and extent.
- Developing efficient methods for cellulose breakdown is crucial for biofuel and biochemical production.
Purpose of the Study:
- To evaluate a new attrition bioreactor for enhanced enzymatic saccharification of cellulose.
- To compare its performance against conventional methods for cellulose hydrolysis.
Main Methods:
- Utilized an attrition bioreactor combining mechanical wet milling with enzymatic hydrolysis.
- Tested newsprint and white-pine heartwood as cellulosic substrates.
- Measured reaction rates, extent of hydrolysis, and power consumption.
Main Results:
- The attrition bioreactor demonstrated excellent performance, markedly improving hydrolysis rate and extent.
- Cellulose hydrolysis efficiency was significantly higher compared to other methods.
- Cellulase enzyme deactivation during the process was not significant.
Conclusions:
- The attrition bioreactor is a highly effective technology for improving enzymatic cellulose saccharification.
- This method offers a promising pathway for more efficient production of biofuels and biochemicals from lignocellulosic biomass.
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