탑형 발효기에 의한 에탄올 연속 생산

Continuous Ethanol Production by Tower Fermentor

Cone 형태 탑형발효기에서 연속발효실험을 수행 결과 발효조 최대 효모 농도는 37.5-39.5g/l이었고 최대 에탄올 생산성은 희석율 0.32 $hr^{-1}$에서 16.3gEtOH/L.hr 이었다. 평균 에탄올 수율은 0.48 g/EtOH/g glucose로서 이는 이론적 수율의 94%였다. Cone형태 탑형발효기는 에탄올 연속생신시 효과적인 발효기로 생각되었다.

A cone-type tower fermentor packed with Sacchromyces uvarum was employed to examine the continuous ethanol fermentation process. The maximum yeast concentration in the cone-type tower fermentor was 37.5-39.5g/$\ell$, the maximum ethanol productivity at the dilution rate of $hr^{-1}$ was 16.3g/$\ell$ . hr and the average ethanol yield was 0.48g EtOH/g glucose, which was 94% of the maximum theoretical yield. It was concluded that a cone-type tower fermentor might offer better perspectives for continuous ethanol fermentation.