What is Blue Spirulina Phycocyanin Powder?
Blue Spirulina Phycocyanin Powder is a rare natural blue pigment. Also known as phycocyanin, it is a water-soluble vegetable protein. According to its source, it can be divided into C-phycocyanin (obtained from cyanobacteria), R-phycocyanin (obtained from red algae), and R-phycocyanin (obtained from symbiotic coccus).
The blue spirulina phycocyanin is due to the tetrapyrrole chromophore attached to its protein moiety through thioether linkages. Current research suggests that phycocyanin contains two relatively homologous polypeptide chains, α, and β, linked with three chromophores. Cys84 and Cys84 and Cys155 of the α subunit are located in the α subunit respectively, and the α and β subunits first form a monomer (αβ) through intermolecular interactions. The aggregated form of its subunits is affected by the environment, and it is mostly in the form of monomers, trimers, and hexamers.
Product Name | Blue Spirulina Phycocyanin Powder |
Specification | E18 |
Other Specification | E6; E25; E40 |
CAS NO | 11016-15-2 |
Test Method | UV |
Appearance | Blue Powder |
Solubility | Water-soluble |
Shelf life | 2 years |
The extraction method of Blue Spirulina Phycocyanin Powder:
Phycocyanin extraction focuses on cell fragmentation, and there is no standard extraction method. Common methods in the world include the freeze-thaw method, ultrasonic disruption method, swelling method, chemical reagent method, and so on. Taking the extraction rate and antioxidant activity (ECso) as the response variables, the response surface optimization of ultrasonic frequency, time, and the temperature was carried out. The results showed that ultrasonic waves could significantly improve the extraction rate of microalgae phycocyanin. The optimal conditions were the extraction temperature of 52.5°C and the ultrasonic frequency of 42kHz for 42 min, the yield was 15.7%, and the ECso was 85.78 mg/mL.
What are the factors that affect the stability of Blue Spirulina Phycocyanin Powder?
1. pH
When the pH is close to 7.0, the hexamer is predominant, which is the most stable structure. Denaturation of phycocyanin is avoided. While at higher or lower pH, this structure is prone to dissociation, and its stability is reduced
. When pH is too acidic or basic, it will change the conformation of the phycocyanin chromophore, change its color, and affect its stability.
2. Lighting
Lighting can damage the structure of blue spirulina phycocyanin powder, thereby destabilizing the conformation of the chromophore attached to it, resulting in a decrease in the stability of phycocyanin. The stability of phycocyanin gradually stabilized with the weakening of light intensity.
3. Temperature
The increase in temperature will lead to the extension reaction of the phycobilin-phycocyanin structure, which changes the conformation of phycobilin from linear to cyclic, thus affecting the three-dimensional structure of phycocyanin.
4. Other factors
In addition to the above factors affecting the stability of blue spirulina phycocyanin, metal ions, additives, etc. can also affect the conformation of the phycocyanin chromophore.
Why choose Phycocyanin?
Phycocyanin is a rare natural blue pigment. It has important application value in food, medicine, cosmetics, and other fields. It is unique in color and luster, rich in nutrients, has various physiological functions such as antioxidant and anti-inflammatory, and has broad development and application prospects.
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