In nature, cyanobacteria are the largest source of phycocyanin, and phycocyanin accounts for a large proportion of cyanobacterial cells. If under specific culture conditions, the content of phycocyanin can be increased.
It is a heterodimeric protein composed of two subunits.
Phycocyanin powder appears as a blue powder, and the liquid is viscous after dissolving in water. The protein content is calculated by the measured data. The products supplied by our company are of high purity, few impurities, and excellent efficacy.

| Product Name: | Phycocyanin(Spirulina extract) | Part Used: | Spirulina |
| Items | Specification | Results | Test method |
| Physical Analysis | |||
| Appearance | Blue Fine Powder | Conforms | Visual |
| Odour | Characteristic | Conforms | Olfactory |
| Impurity | No Visible Impurity | Conforms | Visual |
| Particle size | ≥95% through 80 mesh | Conforms | Screening |
| Residue on Ignition | ≤5g/100g | 1.4g/100g | 3g/550℃/4hrs |
| Loss on Drying | ≤8g/100g | 3.35g/100g | 3g/105℃/2hrs |
| Total protein content | ≥35% | 39.34% | Kjeldahl method |
| Color Value | ≥E18 | 18.36 | UV(E1%618nm in distill water) |
| Purity | ≥1.5 | 1.98 | UV(A620nm/A280nm) |
| PH | PH5-7 | Conforms | 1g/100ml |
| Heavy Metal Analysis | |||
| Heavy Metals | ≤10mg/kg | Conforms | |
| Lead (Pb) | ≤2.00mg/kg | Conforms | ICP-MS |
| Arsenic (As) | ≤2.00mg/kg | Conforms | ICP-MS |
| Cadmium (Cd) | ≤1.00mg/kg | Conforms | ICP-MS |
| Mercury (Hg) | ≤0.50mg/kg | Conforms | ICP-MS |
| PAH | ≤50μg/kg | Conforms | GC-MS(BaP+CHR+BaA+BbFA) |
| Benzo [a] pyrene | ≤10μg/kg | Conforms | GC-MS |
| Microbiological Analysis | |||
| Total Plate Count | ≤10000cfu/g | 500cfu/g | AOAC 990.12 |
| Total Yeast & Mold | ≤100cfu/g | 10cfu/g | AOAC 997.02 |
| coli-group | ≤10cfu/g | Conforms | AOAC 997.02 |
| E.Coli. | Negative/10g | Conforms | AOAC 991.14 |
| Salmonella | Negative/10g | Conforms | AOAC 998.09 |
| S.aureus | Negative/10g | Conforms | AOAC 2003.07 |
| Aflatoxins(B1+B2+G1+G2) | < 20μg/kg | Conforms | HPLC(B1+B2+G1+G2) |
| Aflatoxin B1 | < 5μg/kg | Conforms | HPLC |
| Microcystins | < 1μg/kg | Conforms | HPLC |
| Conclusion: | Qualified | ||
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