| SA | Sodium alginate |
| CA | Casein |
| SA/CA | Sodium alginate-Casein compound gel material |
| OPA | o-Phthalaldehyde |
| SDS | Sodium dodecyl sulfate |
| MB | Methylene blue |
| SEM | Scanning electron microscope |
| FT-IR | Fourier transform infrared spectrometer |
| UV-light | Ultraviolet light |
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