TY - JOUR
T1 - Simultaneous saccharification and fermentation (SSF) of industrial wastes for the production of ethanol
AU - Kádár, Zsófia
AU - Szengyel, Z.
AU - Réczey, K.
PY - 2004
Y1 - 2004
N2 - During the past decades considerably large efforts have been made to optimize the production of lignocellulose derived fuel
ethanol production in order to develop a process configuration which is economically feasible and competitive with gasoline. One
of the process alternatives uses cellulase enzymes for the conversion of cellulose content of lignocellulosic biomass to fermentable
glucose. Due to the relatively similar process conditions in the enzymatic hydrolysis and ethanol fermentation, the option of
carrying out these two-steps together in one vessel exists. The application of simultaneous saccharification and fermentation
(SSF) for the conversion of lignocellulosics to alcohol would result in a more cost-effective process. In the present study
various lignocellulosic substrates, i.e. Solka Floc, OCC waste cardboard, and paper sludge, were examined in SSF experiments
for the production of ethanol. Two yeast strains were compared, a commercially available baker’s yeast and a thermotolerant
Kluyveromyces marxianus, in two types of SSF experiments, i.e. isothermal SSF and SSF with temperature profiling. The results
showed that OCC waste and paper sludge could be used as substrates for ethanol production in SSF. There was no significant
difference observed between Saccharomyces cerevisiae and K. marxianus when the results of SSF were compared. The ethanol
yields were in the range of 0.31–0.34 g/g for both strains used. SSF resulted in higher ethanol yields compared to non-isothermal
SSF (NSSF; SSF with temperature profiling).
© 2004 Elsevier B.V. All rights reserved.
AB - During the past decades considerably large efforts have been made to optimize the production of lignocellulose derived fuel
ethanol production in order to develop a process configuration which is economically feasible and competitive with gasoline. One
of the process alternatives uses cellulase enzymes for the conversion of cellulose content of lignocellulosic biomass to fermentable
glucose. Due to the relatively similar process conditions in the enzymatic hydrolysis and ethanol fermentation, the option of
carrying out these two-steps together in one vessel exists. The application of simultaneous saccharification and fermentation
(SSF) for the conversion of lignocellulosics to alcohol would result in a more cost-effective process. In the present study
various lignocellulosic substrates, i.e. Solka Floc, OCC waste cardboard, and paper sludge, were examined in SSF experiments
for the production of ethanol. Two yeast strains were compared, a commercially available baker’s yeast and a thermotolerant
Kluyveromyces marxianus, in two types of SSF experiments, i.e. isothermal SSF and SSF with temperature profiling. The results
showed that OCC waste and paper sludge could be used as substrates for ethanol production in SSF. There was no significant
difference observed between Saccharomyces cerevisiae and K. marxianus when the results of SSF were compared. The ethanol
yields were in the range of 0.31–0.34 g/g for both strains used. SSF resulted in higher ethanol yields compared to non-isothermal
SSF (NSSF; SSF with temperature profiling).
© 2004 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.indcrop.2003.12.015
DO - 10.1016/j.indcrop.2003.12.015
M3 - Journal article
SN - 0926-6690
VL - 20
SP - 103
EP - 110
JO - Industrial Crops and Products
JF - Industrial Crops and Products
ER -