Table 4.
Production of xylanase by untreated and pretreated biomass with different concentrations of NaOH
| Substrate (g) | Xylanase (IU/g) | Protein (mg/g) | ||||||
|---|---|---|---|---|---|---|---|---|
| Untreated | Pretreated | Untreated | Pretreated | |||||
| 1.0 | 1.5 | 2.0 | 1.0 | 1.5 | 2.0 | |||
| W | 580 ± 0.8 | 622.4 ± 0.7 | 678.2 ± 0.2 | 734.6 ± 0.5 | 3.1 ± 0.1 | 3.7 ± 0.4 | 3.8 ± 0.2 | 4.2 ± 0.6 |
| R | 217.7 ± 0.5 | 222.6 ± 0.4 | 243.7 ± 0.4 | 278.6 ± 0.8 | 2.9 ± 0.6 | 1.1 ± 0.5 | 1.4 ± 0.7 | 1.9 ± 0.4 |
| M | 156.3 ± 0.9 | 148.7 ± 0.8 | 156.5 ± 0.9 | 169.7 ± 0.4 | 2.1 ± 0.2 | 0.9 ± 0.2 | 0.9 ± 0.3 | 1.0 ± 0.5 |
| C | 189.8 ± 0.6 | 196.5 ± 0.3 | 199.8 ± 0.4 | 217.7 ± 0.2 | 2.8 ± 0.1 | 1.0 ± 0.7 | 1.1 ± 0.6 | 1.2 ± 0.3 |
| S | 169.9 ± 0.7 | 170.6 ± 0.7 | 182.9 ± 0.8 | 198.7 ± 0.4 | 1.9 ± 0.7 | 0.9 ± 0.4 | 1.0 ± 0.1 | 1.1 ± 0.8 |
| CC | 810.7 ± 0.1 | 745.7 ± 0.2 | 778.8 ± 0.7 | 1267.3 ± 0.6 | 3.7 ± 0.4 | 4.3 ± 0.2 | 4.5 ± 0.3 | 4.5 ± 0.2 |
| W+MUP | 520.6 ± 0.4 | 479.2 ± 0.9 | 538.6 ± 0.6 | 578.8 ± 0.1 | 2.6 ± 0.8 | 2.4 ± 0.9 | 2.7 ± 0.2 | 3.1 ± 0.6 |
| R+MUP | 151.5 ± 0.6 | 172.8 ± 0.4 | 189.7 ± 0.9 | 196.9 ± 0.8 | 1.7 ± 0.3 | 0.9 ± 0.4 | 1.0 ± 0.3 | 1.4 ± 0.4 |
| M+MUP | 131.2 ± 0.2 | 136.7 ± 0.1 | 142.7 ± 1.2 | 157.8 ± 0.4 | 1.2 ± 0.5 | 0.7 ± 0.4 | 0.8 ± 0.7 | 0.9 ± 0.5 |
| C+MUP | 159.2 ± 0.8 | 147.7 ± 0.4 | 157.4 ± 0.7 | 168.7 ± 0.2 | 2.4 ± 0.9 | 0.8 ± 0.4 | 0.9 ± 0.4 | 1.7 ± 0.3 |
| S+MUP | 137.8 ± 0.5 | 145.6 ± 0.7 | 154.8 ± 0.5 | 167.4 ± 0.7 | 1.7 ± 0.4 | 0.8 ± 0.3 | 0.9 ± 0.5 | 1.4 ± 0.2 |
| CC+MUP | 645.4 ± 0.4 | 639.1 ± 0.8 | 665.4 ± 0.8 | 721.4 ± 0.6 | 2.7 ± 0.1 | 3.9 ± 0.6 | 4.1 ± 0.7 | 4.4 ± 0.3 |
| W+PP | 653.8 ± 0.3 | 678.6 ± 0.1 | 697.9 ± 0.5 | 733.8 ± 0.4 | 3.8 ± 0.3 | 3.2 ± 0.4 | 3.6 ± 0.1 | 3.8 ± 0.9 |
| R+PP | 241.0 ± 0.6 | 229.8 ± 0.9 | 241.0 ± 0.8 | 273.8 ± 0.9 | 2.9 ± 0.1 | 2.0 ± 0.8 | 2.1 ± 0.9 | 2.8 ± 0.2 |
| M+PP | 189.4 ± 0.5 | 206.8 ± 0.2 | 226.5 ± 0.6 | 248.8 ± 0.3 | 2.4 ± 0.3 | 1.9 ± 0.4 | 2.0 ± 0.6 | 2.3 ± 0.6 |
| C+PP | 251.6 ± 0.9 | 289.6 ± 0.7 | 309.8 ± 0.2 | 347.4 ± 0.1 | 3.1 ± 0.6 | 2.6 ± 0.7 | 2.9 ± 0.4 | 3.1 ± 0.5 |
| S+PP | 237.4 ± 0.3 | 269.7 ± 0.9 | 293.6 ± 0.4 | 322.6 ± 0.3 | 2.2 ± 0.4 | 2.2 ± 0.2 | 2.4 ± 0.4 | 2.9 ± 0.7 |
| CC+PP | 1,347.2 ± 0.7 | 1,586.9 ± 0.6 | 1,795.4 ± 0.4 | 2,869.8 ± 0.4 | 4.9 ± 0.1 | 5.3 ± 0.6 | 5.8 ± 0.5 | 7.6 ± 0.2 |
| W+MP | 587.8 ± 0.5 | 616.9 ± 0.4 | 637.5 ± 0.7 | 686.9 ± 0.2 | 3.3 ± 0.4 | 3.5 ± 0.8 | 3.7 ± 0.6 | 3.8 ± 0.4 |
| R+MP | 262.4 ± 0.9 | 256.8 ± 0.8 | 279.7 ± 1.5 | 295.8 ± 0.7 | 2.4 ± 0.3 | 2.1 ± 0.5 | 2.2 ± 0.7 | 2.6 ± 0.3 |
| M+MP | 151.8 ± 0.2 | 144.6 ± 0.4 | 161.3 ± 0.4 | 193.8 ± 0.4 | 1.9 ± 0.5 | 0.7 ± 0.1 | 0.9 ± 0.2 | 1.0 ± 0.3 |
| C+MP | 209.1 ± 0.4 | 195.9 ± 0.7 | 217 ± 0.9 | 243.3 ± 0.8 | 2.3 ± 0.7 | 1.1 ± 0.4 | 1.9 ± 0.5 | 1.5 ± 0.5 |
| S+MP | 183.4 ± 0.6 | 183.4 ± 0.6 | 198.9 ± 1.6 | 223.8 ± 0.6 | 1.7 ± 0.3 | 1.0 ± 0.1 | 1.1 ± 0.6 | 1.3 ± 0.1 |
| CC+MP | 709.2 ± 0.6 | 730.6 ± 0.3 | 768.6 ± 0.8 | 794.7 ± 0.9 | 2.6 ± 0.1 | 3.7 ± 0.4 | 3.9 ± 0.3 | 4.1 ± 0.6 |
| W+BP | 542.1 ± 0.9 | 589.8 ± 0.1 | 609.6 ± 0.4 | 647.3 ± 0.2 | 2.9 ± 0.5 | 2.9 ± 0.6 | 3.1 ± 0.3 | 3.2 ± 0.7 |
| R+BP | 188.7 ± 0.2 | 198.7 ± 0.4 | 221.6 ± 0.7 | 267.5 ± 0.8 | 1.8 ± 0.3 | 1.2 ± 0.3 | 1.3 ± 0.7 | 1.7 ± 0.2 |
| M+BP | 131.8 ± 0.7 | 152.7 ± 0.9 | 171.5 ± 0.1 | 191.4 ± 0.4 | 1.5 ± 0.5 | 0.8 ± 0.5 | 0.9 ± 0.8 | 1.2 ± 0.5 |
| C+BP | 183.6 ± 0.3 | 196.7 ± 0.6 | 219.4 ± 0.7 | 238.7 ± 0.2 | 2.6 ± 0.7 | 1.1 ± 0.1 | 1.2 ± 0.1 | 1.9 ± 0.3 |
| S+BP | 163.9 ± 0.6 | 184.8 ± 0.2 | 198.8 ± 0.4 | 231.1 ± 0.5 | 1.2 ± 0.3 | 1.2 ± 0.8 | 1.3 ± 0.2 | 1.5 ± 0.6 |
| CC+BP | 644.7 ± 0.7 | 687.6 ± 0.2 | 710.7 ± 0.8 | 745.1 ± 0.6 | 2.3 ± 0.4 | 3.3 ± 0.6 | 3.5 ± 0.5 | 3.6 ± 0.4 |
W Wheat straw, R rice straw, M mustard straw, C cotton straw, S sorghum straw, CC corn cobs, MUP mausambi peel, PP pineapple peel, MP mango peel, BP banana peel