Enterobacter sp.의 다당 생산에 미치는 통기ㆍ교반의 단계적 증기 효과

• 영문명: Stepwise Increasing Effects of Agitation and Aeration on Exopolysaccharide Production by Enterobacter sp.
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 이신영(Lee Shin Young) 이주하(Lee Ju Ha)
• 간행물 정보: 『산업기술연구』vol.24, 171~176쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2004.09.30

영문 초록

The effects of agitation and aeration for exopolysaccharide(EPS) production through batch cultivation of an Enterobacter sp. isolated from the composter were investigated. During the EPS fermentation under conditions of constant agitation speed from 200 to 900 rpm and constant aeration rate of 0.5-2.5 vvm, the low yields of EPS(4.8~5.2g/L) was observed as the viscosity increase of culture broth. With the stepwise increases in agitation speed and aeration rate, the EPS production and the viscosity of EPS were increased 1.3~1.4 times and 2.3~3.6 times higher than those of the fixed conditions, respectively. Therefore, these stepwise increases were considered as the key operating parameters for enhancing EPS production. The max. EPS(6.8g/L) and viscosity(14,000cp) were obtained when the agitation speed was increased from 300 to 900 rpm for 54hrs at 1.5 vvm.

목차

Abstract

1. 서론

2. 재료 및 방법

3. 결과 및 고찰

4. 결론

참고문헌

키워드

단계적 통기 및 교반 세포외 다당 생산 Enterobcater sp. stepwise aeration and agitation exopolysaccharide production