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DA and crystallinity index of commercial chitin, chitin obtained from crude protease, commercial protease, alkali and acid treatments
| Samples | DA (%) | Crystallinity index (%) |
|---|---|---|
| Commercial chitin | 88.10 ± 0.11 | 97.9 |
| Chitin obtain from cocktail protease treatment | 82.25 ± 0.07 | 88.0 |
| Chitin obtain from commercial protease | 80.34 ± 0.11 | – |
| Chitin obtain from acid treatment | 55.25 ± 0.06 | – |
| Chitin obtain from alkaline treatment | 84.46 ± 0.14 | – |
