Table 1 The pH values, enzyme activities and reducing sugar yields of the supernatants, as well as the weight losses and compositions of corn stover pretreated with strain P3 for different times (n = 3)
From: Biological pretreatment of corn stover for enhancing enzymatic hydrolysis using Bacillus sp. P3
Time (days) | pH | Enzymes (U/g) | Reducing sugar (mg/g) | Biomass wt. loss (%) | Component (%) | |||
|---|---|---|---|---|---|---|---|---|
CMCase | Xylanase | Glucan | Xylan | Acid-insoluble lignin | ||||
0 | 7.00 | 0.00 | 0.00 | 16.22 ± 1.23 | 0.00 | 26.82 ± 1.57 | 25.98 ± 2.68 | 21.90 ± 0.20 |
5 | 9.41 ± 0.03 | 13.12 ± 0.82 | 135.60 ± 2.29 | 50.23 ± 2.09 | 30.43 ± 0.33 | 31.54 ± 1.90 | 21.74 ± 0.62 | 22.80 ± 0.40 |
10 | 9.68 ± 0.07 | 14.50 ± 0.55 | 199.63 ± 7.57 | 41.17 ± 2.02 | 32.53 ± 0.38 | 36.02 ± 0.80 | 18.51 ± 1.71 | 21.90 ± 0.42 |
20 | 9.36 ± 0.11 | 12.04 ± 0.76 | 148.90 ± 5.01 | 55.50 ± 0.74 | 33.91 ± 0.21 | 40.58 ± 2.09 | 16.90 ± 0.11 | 18.40 ± 0.28 |