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Studied lignin samples
| Code | Sample (process type) | Lignin descriptor | Klason lignin |
|---|---|---|---|
| LP3 | Beech wood lignin (organosolv, EtOH + H2O) | Hardwood, no degradation | > 95% |
| LP5 | Miscanthus lignin (steam treatment + EH) | Grasses, degraded | 70–80% |
| LP7 | Spruce lignin (dilute acid + EH) | Softwood, degraded | 75% |
| LP9 | Hardwood lignin (2G biorefinery, pretreatment + EH) | Hardwood, degraded | 84–88% |
