Discover the main bioactive molecule in spirulina and its exceptional benefits.
Spirulina ( Arthrospira platensis ), which appeared on Earth more than three billion years ago, is among the first living organisms capable of photosynthesis, transforming solar energy into biochemical energy. This cyanobacterium, often classified as a blue-green microalga, is now recognized worldwide for its remarkable nutritional properties.
Yet, behind this ancient algae lies an even more fascinating pigment: phycocyanin, its main bioactive molecule. Increasingly isolated and valued as a key ingredient, it is generating growing interest in the fields of health, nutrition, and cosmetics. But what exactly is phycocyanin, and how does it differ from spirulina? How does it affect our bodies?
In this article, we will explore this natural pigment with amazing properties, often referred to as a "super-antioxidant", and understand why it deserves all the attention it receives today.
What is phycocyanin?
Phycocyanin is a blue-green pigment naturally present in spirulina. It belongs to the phycobiliprotein family, proteins associated with pigments. Its main role is to capture the light necessary for photosynthesis, a vital process that allows algae and cyanobacteria to transform solar energy into chemical energy.
A unique bioactive molecule
Phycocyanin results from the association of proteins (phycobiliproteins) and water-soluble pigments produced by photosynthesis (phycocyanobilins). This unique combination has the ability to absorb orange and red light at wavelengths close to 620 nm and to emit fluorescence at approximately 650 nm.
It is this fluorescent protein that captures photons and transforms them into biological energy. It is at the heart of the cell's energy processes and provides 10 times more energy than spirulina's other pigment, chlorophyll.
Spirulina vs. Phycocyanin: Understanding the Differences
Although phycocyanin is derived from spirulina, these two entities are fundamentally different in their composition, use, and benefits.
Spirulina: a complete superfood
Spirulina is a nutritional concentrate that contains:
- Protein: between 55% and 70% of its dry matter, with all the essential amino acids
- Vitamins: B1, B2, B3, vitamin K
- Minerals: iron, magnesium, calcium, zinc
- Pigments: chlorophyll and phycocyanin (10 to 15% in dry extract)
- Essential fatty acids: notably gamma-linolenic acid
This nutritional richness makes spirulina a prized food supplement to support energy, vitality and immunity.
Phycocyanin: a targeted bioactive molecule
| Criteria | Spirulina | Phycocyanin |
|---|---|---|
| Nature | Whole cyanobacterium | Extracted molecule (pigment-protein) |
| Composition | Very rich (proteins, vitamins, minerals) | Specific bioactive protein |
| Appearance | Green powder | Blue powder or liquid |
| Use | Global dietary supplement | Isolated ingredient for targeted effects |
| Extraction | Simple drying | Complex aqueous extraction |
| Concentration | ~10-15% phycocyanin | Up to 90% in purified extracts |
Consuming spirulina is therefore not equivalent to consuming isolated phycocyanin. To fully benefit from the properties of phycocyanin, it must be separated from the proteins.
The benefits of phycocyanin: what does science say?
Numerous scientific publications, coupled with in vitro and in vivo clinical studies, have highlighted the potential properties of phycocyanin:
A powerful antioxidant
Phycocyanin captures free radicals and protects cells against oxidative stress. Studies have demonstrated its exceptional effectiveness in combating cellular damage caused by oxidation.
Anti-inflammatory properties
It would inhibit certain pro-inflammatory pathways such as COX-2, thus helping to reduce inflammation in the body.
Immune support
Phycocyanin may enhance the immune response by modulating the activity of certain immune system cells.
Liver protection
It appears to protect the liver against toxins and support its detoxification functions.
Neuroprotective potential
Some research is exploring its potential against neuronal stress and degenerative diseases, opening up promising perspectives for cognitive health.
Dried spirulina vs. liquid phycocyanin extract: a world of difference
The limitations of dried spirulina
When consuming dried spirulina (flakes or capsules), the absorption of phycocyanin requires approximately 4 hours of dissociation after ingestion. This extended timeframe, while not diminishing the nutritional benefits of spirulina, prevents the full potential of phycocyanin from being realized.
The advantage of liquid extraction
Extracting the spirulina biomass early, followed by storage in a sterile liquid form, allows for much more efficient absorption by the body. The phycocyanins are then directly bioavailable, without requiring lengthy digestion.
Cold extraction, without synthetic solvents or chemicals, is a crucial step as it determines the quality of the finished product. The absence of a temperature increase means that the biomass is not "cooked" to alter the bioactive molecules.
Are all phycocyanin extracts of equal quality?
No, and this is a crucial point to understand.
There is a significant international market for phycocyanin powder used as a blue food coloring. Some liquid products, sold as dietary supplements, simply reintroduce powdered phycocyanin into their formulation.
The problem with phycocyanin powders
These powders have generally been heated to completely remove the water, which alters their functional potential. Furthermore, they often contain trehalose, a petrochemical-derived ingredient known for its antioxidant properties, which makes up more than half of their composition.
The antioxidant claim of these products is therefore more related to trehalose than to the phycocyanin present in small quantities in these powders.
Phycocyanin: a fragile molecule
Phycocyanin is extremely sensitive to oxygen, light, and heat. Many products on the market contain oxidized, and therefore inactivated, phycocyanin. This is why the extraction and preservation process is crucial for the final quality.
Spirulysat®: the scientific reference
Among the companies active in the extraction and valorization of bioactive extracts from microalgae, AlgoSource, based in Loire-Atlantique (France), stands out for its rigorous approach and patented technology.
A unique and patented process
Spirulysat® is a unique food supplement composed of a liquid extract of phycocyanin derived from fresh spirulina biomass. This patented technique allows for:
- Preserve the native structure of phycocyanin
- Maintaining antioxidant activity over time
- Avoid chemical preservatives
- Preserve bioactive molecules in their original form
A groundbreaking scientific validation
Algosource is the first French company to have conducted a clinical study on its spirulina extract concentrated in phycocyanins. This SPIROX study was carried out on humans in a double-blind, placebo-controlled trial and validated the antioxidant effect of Spirulysat®.
Algosource is the only company to have scientifically demonstrated a validated antioxidant effect on a liquid spirulina extract, thus supporting the credibility of the product.
Proven performance
A comparative experiment conducted between Spirulysat® in its standard liquid form and the same product freeze-dried made it possible to measure the impact of drying on phycocyanin.
Result: Spirulysat proved to be fifty times more effective in its antioxidant action on SOD (measurement of action on the superoxide ion) than its dried version.
The advantages of the liquid form
Increased bioavailability
The liquid form of Spirulysat® contributes to faster and easier absorption by the body. Because it is in liquid form, Spirulysat® is directly assimilated without complex digestion. The water-soluble form allows for rapid absorption, ideal for:
- People who are tired or weakened
- Convalescence periods
- Athletes engaged in intense physical activity
- Those seeking a fast effect without pills
A 100% natural product
Spirulysat® is a 100% natural aqueous liquid extract, made directly from fresh spirulina biomass, without synthetic solvents or chemicals, without coloring, without sugar and without preservatives.
How to consume Spirulysat®?
Spirulysat® is very easy to consume. Packaged in drinkable ampoules, it comes in the form of a ready-to-use liquid solution.
Recommended dosage
It is recommended to take between 10 and 15 ml per day, depending on needs and objectives:
- In the morning for a natural energy boost
- After exercise to promote muscle recovery
- A treatment to strengthen the immune system
You can consume it pure or mix it with water, fruit juices or smoothies.
The Spirulysat® range
AlgoSource offers three packages to meet all needs:
- Spirulysat Original: the reference formula for daily use against oxidative stress
- Spirulysat Concentrate: highly concentrated for enhanced antioxidant action
- Spirulysate & Copper: enriched with copper for optimal immune synergy
- Spirulysat & Ginseng: enriched with ginseng for vitality and a boost
- Spirulysat & Selenium: enriched with selenium for thyroid health and antioxidant protection
Conclusion: phycocyanin, a treasure of nature
Phycocyanin is undoubtedly a treasure of nature with numerous benefits. This blue-green pigment deserves all the attention it receives today. Whether you're looking to improve your overall health, boost your immune system, or support your athletic performance, it offers a natural and effective solution.
However, not all phycocyanin extracts are created equal. The extraction process, product stability, and scientific validation are essential to guarantee the effectiveness of the dietary supplement.
Algosource, with its Spirulysat®, embodies French excellence in this field: clean extraction, exceptional stability, and rigorous scientific validation. Based on clinical studies, complete traceability, and reproducible results, Algosource offers you a product you can trust.
With studies continuing to demonstrate its positive effects, phycocyanin is likely to become a key player in the field of natural health and prevention.
Spirulina and phycocyanin, while related, represent two distinct worlds. Spirulina is an ancient superfood, a comprehensive dietary supplement rich in protein, vitamins, and trace elements. Phycocyanin, on the other hand, is a promising bioactive molecule, valued in targeted applications, particularly in its stabilized liquid form, which best preserves its properties.
To fully benefit from this exceptional pigment, opt for a high-quality extract, preserved using cold and scientifically validated.