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Title: Elimination of ethanol inhibition by perstraction. [Membrane-aided solvent extraction]

Journal Article · · Biotechnol. Bioeng.; (United States)

Perstraction (membrane-aided solvent extraction) was utilized for elimination of ethanol inhibition in continuous ethanol fermentation using high sugar concentrate. Hollow fibres for an artificial kidney were used as a permeable membrane, and their capacity to extract ethanol was examined by using several organic solvents. When tri-n-butylphosphate was used as an extractant, a 500g/l feed glucose medium was successfully fermented by immobilized yeast cells. During this continuous fermentation a high ethanol productivity of 48 g/h.l-gel was held, and the solvent requirement per consumed glucose was 6 l-solvent/kg-gluose. 17 references.

Research Organization:
Univ. of Tsukuba, Ibaraki, Japan; Technische Univ. Muenchen, Germany F.R.
OSTI ID:
5367306
Journal Information:
Biotechnol. Bioeng.; (United States), Vol. 28:4, Issue 4
Country of Publication:
United States
Language:
English