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Degradation of HA derived from various sources by sonication. Reproduced from [112], with permission from Springer Nature, 2020.
| Source of HA | Molecular Weight, kDa | |
|---|---|---|
| Before | After | |
| Human umbilical cord | 400 | 11 |
| Rooster comb | 1000 | 3 |
| Streptococcus zooepidemicus | 1200 | 60 |
