Table 1 Water solubility, viscosity, average molecular weight (MW) and antioxidative activity of COS-L from squid pen
| Water Solubility (%) | 49.14 ± 0.89 |
| Viscosity (dL/g) | 0.41 ± 0.00 |
| Average MW (kDa) | 78.82 ± 2.55 |
| Antioxidative activity | |
| DPPH radical scavenging activity (μmol TE/g sample) | 5.68 ± 0.36 |
| ABTS radical scavenging activity (μmol TE/g sample) | 322.68 ± 8.46 |
| FRAP (μmol TE/g sample) | 5.66 ± 0.15 |
| Metal chelating activity (μmol EE/g sample) | 2.58 ± 0.11 |
| ORAC (μmol TE/g sample) | 42.20 ± 4.85 |