Appearance index
Item | Quality requirements | Detection method |
Color | Light yellow or yellow powder | Q/WTTH 0023S Item 4.1 |
Character | Powdery, uniform color, no agglomeration, no moisture absorption | |
Taste and smell | With the unique taste and smell of this product, no odor, no smell | |
Impurity | No normal vision visible foreign objects |
Physicochemical index
Index | Unit | Limit | Detection method | |
Protein (on dry basis) | % | ≥ | 50.0 | GB 5009.5 |
Oligopeptide (on dry basis) | % | ≥ | 45.0 | GB/T 22492 Appendix B |
Ash (on dry basis) | % | ≤ | 8.0 | GB 5009.4 |
Proportion of relative molecular mass ≤2000D | % | ≥ | 80.0 | GB/T 22492 Appendix A |
Moisture | % | ≤ | 7.0 | GB 5009.3 |