TY - JOUR
T1 - Detoxification of acid pretreated spruce hydrolysates with ferrous sulfate and hydrogen peroxide improves enzymatic hydrolysis and fermentation
AU - Prabhakar Soudham, Venkata
AU - Brandberg, Tomas
AU - Mikkola, Jyri-Pekka
AU - Larsson, Christer
PY - 2014
Y1 - 2014
N2 - The aim of the present work was to investigate whether a detoxification method already in use during waste water treatment could be functional also for ethanol production based on lignocellulosic substrates. Chemical conditioning of spruce hydrolysate with hydrogen peroxide (H2O2) and ferrous sulfate (FeSO4) was shown to be an efficient strategy to remove significant amounts of inhibitory compounds and, simultaneously, to enhance the enzymatic hydrolysis and fermentability of the substrates. Without treatment, the hydrolysates were hardly fermentable with maximum ethanol concentration below 0.4 g/l. In contrast, treatment by 2.5 mM FeSO4 and 150 mM H2O2 yielded a maximum ethanol concentration of 8.3 g/l.
AB - The aim of the present work was to investigate whether a detoxification method already in use during waste water treatment could be functional also for ethanol production based on lignocellulosic substrates. Chemical conditioning of spruce hydrolysate with hydrogen peroxide (H2O2) and ferrous sulfate (FeSO4) was shown to be an efficient strategy to remove significant amounts of inhibitory compounds and, simultaneously, to enhance the enzymatic hydrolysis and fermentability of the substrates. Without treatment, the hydrolysates were hardly fermentable with maximum ethanol concentration below 0.4 g/l. In contrast, treatment by 2.5 mM FeSO4 and 150 mM H2O2 yielded a maximum ethanol concentration of 8.3 g/l.
U2 - 10.1016/j.biortech.2014.05.096
DO - 10.1016/j.biortech.2014.05.096
M3 - Artikel
SN - 0960-8524
VL - 166
SP - 559
EP - 565
JO - Bioresource Technology
JF - Bioresource Technology
ER -