Earticle

초록

영어

The quantitative effects of molecular weight and concentrations of two phase-forming polymers-polyethylene glycol and crude dextran on the two phase extractive ethanol fermentation were investigated using a Box-Wilson central composite protocol. The regression model obtained was used in order to determine optimum compositions of aqueous two phase system. In the aqueous two phase extractive ethanol fermentation of Kluyueromyces fragilis CBS 1555 with Jerusalem artichoke juice, it was found from the regression model that the variables influenlcing on ethanol fermentation were PEG concentration, time, Dx concentration, and PEG molecular weight strongly in order. The interaction of PEG concentration and PEG molecular weight was also found, and the effect of PEG concentration decreased with increase in molecular weight of PEG. The ethanol concentration incresed with increase in molecular weight of PEG, and with decrease in concentration of PEG. In conolusion, maximum concentration of ethanol produced was obtained at the following compositions; PEG MW 20000, Dx concentration ranged from 4% to 5%, and PEG concentration ranged from 3% to 7%.

목차

ABSTRACT
 서론
 재료 및 방법
  균주
  실험계획
  발효기질
  발효실험 및 시료의 분석
 결과 및 고찰
  회귀분석
  PEG 농도가 알콜생성에 미치는 영향
  PEG 분자량이 알콜생성에 미치는 영향
  Dextran 농도가 알콜생성에 미치는 영향
 요약
 감사
 참고문헌

저자

• 김진한 [ Jin Han Kim | 인하대학교 공과대학 생물공학과 ]
• 허병기 [ Byung Ki Hur | 인하대학교 공과대학 생물공학과 ]
• 목영일 [ Young II Mok | 아주대학교 공과대학 화학공학과 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  KSBB Journal

• 간기

  격월간

• pISSN

  1225-7117

• 수록기간

  2009~2013

• 십진분류

  KDC 476 DDC 576