원문정보
초록
영어
Two types of airlift fermenters, conventional (UT-ALF) and modified (CDT-ALF) were investigated to evaluate their performance with respect to baker’s yeast growth. The riser tube of conventional external loop airlift fermenter is replaced by a converging-diverging tube. The new reactor is called modified airlift reactor.
The results were compared for the two types of airlift fermenter (UT-ALF and CDT-ALF). Growth rates (dx/dt) were determined from experimental data for both the reactors under identical operating conditions and compared. CDT-ALF always shows higher growth rate compared to UT-ALF under any operating condition. Maximum growth was reported in CDT-ALF at 50 gm/l initial glucose conc. and 1.0 vvm air flow rate which was 20 % higher than UT-ALF. Yield (YX/S) was found to be 0.51which is theoretically very near to maximum achievable value.
목차
1. Introduction
2. Experimental Set-up
3. Materials and methods
3.1 Experiments on batch growth
4. Result
4.1 Effect of air flow rate on dx/dt when initial glucose concentrations were 10 gm/l and 30gm/l
4.2 Effect of air flow rate on dx/dt when initial glucose concentrations was 50 gm/l
5. Discussion
5.1. Effect of airflow rate on dmax at 30 gm/l initial glucose concentration
5.2. Effect of airflow rate on d max at 50 gm/l initial glucose concentration
6. Conclusion
References