Spirulina Extract

Spirulina Extract

Introduction

For centuries, spirulina has been a precious nutritional food source for indigenous communities in tropical and subtropical regions, and modern science has confirmed that its extract is a nutrient-dense superfood with extraordinary biological activity, shining brightly in the fields of health care, food processing and animal nutrition.

2. What is Spirulina Extract?

Plant Profile

Its botanical name is Spirulina major Kützing ex Gomont, a kind of blue-green microalgae belonging to the Oscillatoriaceae family. It is widely cultivated in the golden latitudes of alkaline water areas worldwide, with the People's Republic of China as its core producing area, boasting mature industrialized breeding and extraction technology.

Extraction Part

The whole thallus of spirulina is used as the raw material for extraction, retaining the complete nutritional and active components of the algae.

Active Ingredients

The core index component is protein (≥60%), and it is also rich in phycocyanin, spirulina polysaccharides, γ-linolenic acid, β-carotene, chlorophyll and a variety of trace elements (Fe, Zn, Se, etc.), all of which are the key to its biological activity.  

3. Core Efficacy and Mechanism of Action

Potent Antioxidant & Anti-aging

Spirulina extract is rich in phycocyanin, SOD and β-carotene, which can efficiently scavenge free radicals in the body, reduce oxidative stress damage to cell membranes, and slow down the cellular aging process. Studies have shown its antioxidant capacity is 20 times that of vitamin E, and it can protect skin from UV-induced damage effectively.

Immune System Enhancement

Phycocyanin and spirulina polysaccharides in the extract can activate the activity of macrophages and natural killer cells, promote the synthesis of immunoglobulins, and regulate the secretion of immune factors. Clinical research has proved that it can significantly improve the body's defense against viruses and bacteria, and reduce the incidence of respiratory tract infections.

Blood Lipid Regulation & Cardiovascular Protection

γ-linolenic acid and polyunsaturated fatty acids inhibit intestinal absorption of cholesterol, promote the metabolism of low-density lipoprotein cholesterol, and combine with bile acids to accelerate cholesterol decomposition and excretion. Regular intake can reduce serum total cholesterol and triglyceride levels, and increase high-density lipoprotein cholesterol content, with potential benefits for preventing atherosclerosis.

Nutritional Supplement & Anemia Improvement

With high-quality protein (containing all essential amino acids for humans) and rich iron elements, it can supplement the body's nutritional needs, promote hematopoiesis of bone marrow, and play an auxiliary role in improving iron-deficiency anemia, which is especially suitable for people with low immunity and post-illness weakness.

4. Wide-ranging Application Fields

Pharmaceutical & Health Products 

It is processed into capsules, tablets, oral liquids and other dosage forms, targeting sub-health problems such as low immunity, hyperlipidemia, iron deficiency anemia, and is also used as a preventive health product for radiation workers to enhance the body's anti-radiation ability.

Functional Food & Beverages

As a natural nutritional fortifier, it is added to energy bars, protein powders, health drinks, breakfast cereals and other products, enriching the nutritional composition of food and meeting the demand of modern people for healthy and convenient food.

Cosmetics & Personal Care 

With strong antioxidant and skin repair properties, it is used in anti-aging, moisturizing and soothing skin care products (such as facial masks, serums, lotions). Phycocyanin can also be used as a natural blue colorant in cosmetic formulations, replacing synthetic pigments.

Animal Nutrition

As a high-quality feed additive, it can improve the growth performance and immune function of livestock, poultry and aquatic products. Adding it to the diet of broilers, piglets and Penaeus vannamei can significantly increase their survival rate and weight gain rate, and improve the quality of animal products.

Environmental Protection & Other Fields

It can absorb nitrogen, phosphorus and other nutrients in water, and is used in sewage treatment and water ecological restoration; at the same time, its high photosynthetic efficiency makes it a potential raw material for biological hydrogen production research.

5. Key Points for Choosing High-quality Spirulina Extract

Purity and Active Ingredient Content

Prioritize products with clear and measurable core index content (e.g., protein ≥60%), and avoid products with vague component labels. The actual detection value of high-quality extract should be stably higher than the minimum standard.

Advanced Production Process 

Choose the extract prepared by ethanol-water mixed solvent extraction combined with low-temperature drying technology, which can maximize the retention of heat-sensitive active components (such as phycocyanin and polysaccharides) and avoid nutrient loss caused by high temperature.

Strict Quality Testing & Third-party Certification

The product must have a complete COA report, and pass the detection of heavy metals, pesticide residues, microorganisms and other indicators in accordance with international standards (such as USP40). Third-party authoritative certification can further guarantee the product quality.

Non-irradiation & Pollution-free Raw Materials

Ensure the raw material spirulina is cultivated in a pollution-free alkaline water area, without heavy metal and microcystin pollution; the finished product is non-irradiated, retaining the natural properties of the extract.

Stable Physical Properties

The extract should have uniform particle size (pass 80 mesh), low moisture and ash content, which is conducive to storage and subsequent processing and application.

6. About Us

As a professional enterprise focusing on the R&D, production and sales of natural plant and microalgae extracts for many years, Greensky Biological Technology has built a complete industrial chain from spirulina breeding to extract deep processing, and we are committed to providing high-quality spirulina extract with stable quality and reliable efficacy for global customers.

Our core advantages are as follows:

1.       High-quality Raw Material Base: We select alkaline water areas with excellent ecological environment for standardized spirulina breeding, strictly controlling the breeding process to ensure raw materials are pollution-free and high-nutrition.

2.       Advanced Extraction Technology: Adopt ethanol-water mixed solvent extraction and low-temperature vacuum drying technology, with professional production equipment and process parameters optimized by R&D team, maximizing the retention of active components.

3.       Strict Quality Control System: Establish a full-process quality inspection from raw material incoming to finished product delivery, with an independent laboratory equipped with advanced testing instruments, all products are tested in accordance with USP40 international standards, and provide complete COA reports.

4.       Customized Service & Stable Supply: We can provide customized specifications of spirulina extract according to customers' different application needs, with a monthly production capacity of more than 300kg, ensuring stable and on-time delivery.

5.       Professional Technical Support: Our team of biological and food engineering experts can provide one-stop technical solutions for customers, including product application formula design, processing technology guidance and after-sales service.

Our product packaging adopts 25kg/drum (paper-drums with two plastic-bags inside), which is moisture-proof and sealed, and the shelf life can reach 3 years under the condition of avoiding direct sunlight and moisture.

7. Conclusion & Call to Action

Spirulina extract, as a natural superfood with high protein, multiple active components and diverse biological activities, has huge application potential and market value in the fields of health care, food, cosmetics and animal nutrition. Its safety and efficacy have been verified by a large number of scientific researches and practical applications, and it is an ideal natural raw material for many industries.

Greensky Biological Technology is your reliable partner for high-quality spirulina extract. We have strict quality control, advanced production technology and professional customized services to provide you with the most suitable product solutions.

If you are interested in our spirulina extract (60% protein), welcome to contact us immediately to get the latest quotation and free samples! Our expert team is ready to provide you with professional technical support and one-stop service at any time.

References

1. FAO. (2008). Spirulina: Nature's Superfood for the Future. Food and Agriculture Organization of the United Nations.

2. Cleveland Clinic Health Essentials. (2025). Health Benefits of Spirulina: The Nutrient-Dense Superfood.

3. Liu, Y., et al. (2022). Antioxidant and immunomodulatory effects of Spirulina major polysaccharides. Journal of Ethnopharmacology, 296, 115321. (PubMed)

4. Zhou, M., et al. (2025). Research on the medical application potential of spirulina extract as a drug carrier. Chinese Journal of Pharmaceutical Sciences.

5. Wang, H., et al. (2024). Effect of spirulina extract on blood lipid regulation in hyperlipidemic rats. Journal of Food Biochemistry, 48(5), e14567. (PubMed)

6. World Health Organization. (2020). Safety and Efficacy Evaluation of Spirulina as a Food Additive.

7. Zhang, L., et al. (2023). Application of spirulina extract in animal nutrition and feed industry. Animal Feed Science and Technology, 301, 115089.

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