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Up‐Flow Attached‐Bed Bioreactor for Continuous Ethanol Fermentation
Author(s) -
Chen HungChang
Publication year - 1991
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1021/bp00010a004
Subject(s) - zymomonas mobilis , bioreactor , fermentation , ethanol , chemistry , dilution , ethanol fermentation , cellulose , ethanol fuel , chromatography , continuous flow , food science , biochemistry , organic chemistry , physics , thermodynamics , mechanics
Ethanol fermentation was carried out in an up‐flow attached‐bed (UFAB) continuous fermentor using different microorganisms, substrates, and attachment supports. When Saccharomyces fragilis was attached to cellulose acetate to ferment deproteinized and concentrated acid whey, ethanol productivity as high as 6.9 g/(L.h), 10 times that of a batch reactor, was obtained in a continuous UFAB bioreactor. When Zymomonas mobilis was attached to vermiculite in a continuous UFAB bioreactor to ferment a 10% glucose feed, ethanol productivity as high as 105.7 g/(L.h) was achieved with a dilution rate of 3.6 h −1 and an ethanol concentration of 29.0 g/L.