Table 2.
Composition of untreated and treated (with 2 % NaOH) biomass
| Cellulose | Lignin | Hemicellulose | Protein | Moisture | Ash | Total sugars | Reducing sugars | |
|---|---|---|---|---|---|---|---|---|
| Substrate untreated | ||||||||
| W | 35.9 ± 0.8 | 6.25 ± 0.2 | 28.7 ± 0.1 | 3.77 ± 0.4 | 6.0 ± 0.9 | 8.2 ± 0.7 | ND | ND |
| R | 39.7 ± 0.03 | 8.9 ± 0.8 | 23.5 ± 0.3 | 2.75 ± 0.8 | 8.3 ± 0.6 | 6.8 ± 1.4 | ND | ND |
| M | 27.8 ± 0.4 | 5.2 ± 0.6 | 17.8 ± 0.8 | 2.03 ± 0.3 | 4.1 ± 0.4 | 5.5 ± 1 | ND | ND |
| C | 51.2 ± 0.01 | 10.4 ± 0.6 | 24.7 ± 0.5 | 2.19 ± 0.7 | 5.5 ± 0.8 | 5.6 ± 0.7 | ND | ND |
| S | 23.5 ± 0.16 | 5.8 ± 0.9 | 21.1 ± 0.9 | 1.84 ± 0.5 | 5.8 ± 0.2 | 4.3 ± 0.4 | ND | ND |
| CC | 42.8 ± 0.06 | 5.9 ± 0.5 | 37.2 ± 0.3 | 3.79 ± 0.2 | 7.0 ± 0.4 | 7.1 ± 0.2 | ND | ND |
| Substrate treated | ||||||||
| W | 39.3 ± 0.2 | 2.1 ± 0.1 | 19.4 ± 0.6 | 4.19 ± 0.2 | 4.1 ± 0.8 | 9.6 ± 0.9 | 0.67 ± 0.4 | 0.62 ± 0.7 |
| R | 42.2 ± 0.02 | 4.1 ± 0.9 | 16.5 ± 0.3 | 2.85 ± 0.5 | 5.0 ± 1.5 | 9.8 ± 0.4 | 0.48 ± 0.7 | 0.43 ± 0.3 |
| M | 30.2 ± 0.2 | 2.17 ± 0.2 | 10.7 ± 0.7 | 2.28 ± 0.9 | 1.8 ± 0.6 | 7.5 ± 0.2 | 0.57 ± 0.3 | 0.53 ± 0.6 |
| C | 61.7 ± 0.6 | 7.8 ± 0.4 | 15.6 ± 0.8 | 2.72 ± 0.7 | 3.3 ± 0.9 | 8.0 ± 1.5 | 0.77 ± 0.2 | 0.75 ± 0.4 |
| S | 26.8 ± 0.04 | 3.67 ± 0.7 | 11.1 ± 0.5 | 1.97 ± 0.6 | 3.7 ± 0.6 | 7.1 ± 0.3 | 0.45 ± 0.7 | 0.42 ± 0.8 |
| CC | 40.4 ± 0.1 | 2.56 ± 0.4 | 21.9 ± 0.3 | 4.17 ± 0.3 | 4.8 ± 1.4 | 9.8 ± 0.8 | 0.82 ± 0.9 | 0.78 ± 0.2 |
Composition of untreated and treated biomass in percentage (%)
Except moisture remaining all the composition of substrates were done based on dry weight basis %
Values are mean of two replicates
W wheat straw, R rice straw, M mustard straw, C cotton straw, S sorghum straw, CC corn cobs, ND not detected