|
Parameters
|
Hemicellulose hydrolysate
|
Enzyme hydrolysate
|
|---|
| |
S. shehatae
a
|
S. cerevisiae
b
|
|---|
|
Initial sugars (gs/l)
|
23.64
|
36.65
|
|
Sugar consumed (%)
|
100
|
100
|
|
Ethanol produced (gp/l)
|
9.11
|
8.13
|
|
Ethanol yield (gp/gs)
|
0.38
|
0.22
|
|
Ethanol productivity (gp/l/h)
|
0.189
|
0.11
|
|
Biomass produced (gx/l)
|
3.34
|
6.55
|
|
Biomass yield (gx/gs)
|
0.07
|
0.178
|
|
Biomass productivity (gx/l/h)
|
0.141
|
0.090
|
- aFermentation of hemicellulose hydrolysate by S. shehatae showed maximum ethanol production (9.11 g/l) after 48 hours, thus ethanol productivity was calculated taking 48 hours into consideration. After 48 hours, sugar consumption was 100%. Biomass productivity was also calculated taking 48 hours into consideration. bFermentation of enzymatic hydrolysate by S. cerevisiae showed maximum ethanol production (8.13 g/l) after 72 hours, thus ethanol productivity was calculated taking 72 hours into consideration. After 48 hours, sugar consumption was 100%. Biomass productivity was also calculated taking 72 hours into consideration as it was continuously increasing until 72 hours of incubation.
