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Key enzymes activity in WAS before and after the pre-treatments.
| Reactors | Control | FNA1 | FEN1 | FNA1+FEN1 | FNA2+FEN2 |
|---|---|---|---|---|---|
| Protease activity (mm) | 32 ± 0.9 | 28 ± 0.7 | 24 ± 1.1 | 21.7 ± 0.8 | 18.5 ± 0.2 |
| Cellulase activity (mm) | 37 ± 1 | 33 ± 0.3 | 28.7 ± 0.5 | 27 ± 0.8 | 25 ± 0.4 |
