Table 2.
Comparison of Miscanthusand other selected biomass feedstocks
| Biomass |
Composition (% dry weight raw) |
Theoretical EtOH yield (gal/dry ton feedstock)* | Pretreatment condition | Enzymatic hydrolysis |
Sugar yield ** |
|||
|---|---|---|---|---|---|---|---|---|
| Glu | Xyl | Glu | Xyl | Total | ||||
|
Miscanthus x giganteus cv. Illinois in this study |
42.9 |
22.0 |
113 |
180°C, 10% solid loading, 35 min, logR0 3.90 |
60 FPU Spezyme CP plus 120 CBU Novozym 188 per gram glucan + xylan, 72 h |
92 |
74 |
55.7 |
| Corn stover [24] |
36.1 |
21.4 |
100.3 |
210°C, 50% solid loading, 6 min, logR0 4.02 |
60 FPU Spezyme CP plus 120 CBU Novozym 188 per gram glucan + xylan, 72 h |
61.1 |
87.6 |
40.8 |
| Wheat straw [25] |
37.8 |
22.8 |
105.6 |
188°C, 10% solid loading, 40 min, logR0 4.19 |
15 FPU celluclast plus 15 IU Novozym 188 per gram dry substrate, 72 h |
91 |
80 |
52.6 |
| Switchgrass [26] |
32.2 |
20.3 |
91.5 |
190°C, 5% solid loading, 10 min, logR0 3.64 |
15 FPU cellulase per gram glucan, 72 h |
N/A |
73.1 |
N/A |
| Hybrid Poplar [27] | 44 | 15 | 102.5 | 200°C, 15% solid loading, 10 min, logR0 3.94 | 40 FPU Spezyme CP plus 40 CBU Novozym 188 per gram glucan, 48 h | 63.3 | 85.3 | 45.5 |
Glu-glucan, xyl-xylan, lig-lignin.
*Theoretical EtOH yields were calculated by NREL Theoretical Ethanol Yield Calculator [38].
** Sugar yields for glu and xyl were %, the totals of glu and xyl were g/100 dry weight.