Table 3. Yield of Ethyl Acetate-Soluble Fraction for Lignin Samples.
| entry | condition | alkali lignin (%) | organosolv lignin (%) | kraft lignin (%) |
|---|---|---|---|---|
| 1 | original lignin | 16 | 6.7 | 15 |
| 2 | after initial condition | 38 | 31 | 37 |
| 3 | after optimised condition | 52 | 54 | 48 |
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