Nutrition,Supercharge Your Product Line with Eco-Friendly Nannochloropsis Raw Material

Nannochloropsis is a genus of unicellular marine microalgae belonging to Eustigmatophyceae. The most widely commercialized strains include Nannochloropsis oceanica, Nannochloropsis gaditana and Nannochloropsis oculata. After harvesting, concentration, spray drying or freeze-drying, the microalgae biomass forms Nannochloropsis Powder, a sustainable natural raw material gaining rapid popularity across aquaculture, human nutrition, functional food and cosmetic industries.

Unlike fish-derived omega-3, Nannochloropsis is the primary biological producer of eicosapentaenoic acid (EPA). Multiple peer-reviewed studies confirm that whole-cell Nannochloropsis powder contains balanced macronutrients and diversified bioactive compounds, positioning it as a clean-label alternative to marine animal raw materials.

Nutritional Profile & Scientific Research Evidence

Nannochloropsis powder features a unique nutrient composition. Typical composition of dry biomass:

• Crude Protein: 25%–40% (complete essential amino acid spectrum)
• Total Lipids: 30%–60% dry weight; EPA (C20:5 n-3): 1%–11% of dry weight
• Bioactive substances: Chlorophyll a, β-carotene, violaxanthin, polysaccharides, vitamins & trace minerals

Key Research Findings

• EPA lipid regulation activity
  Lipids extracted from Nannochloropsis gaditanapowder significantly reduced serum triglycerides, total cholesterol and LDL cholesterol in hyperlipidemic animal models, alleviating hepatic inflammation and oxidative stress. The research verified the lipid-modulating capacity of naturally occurring EPA from Nannochloropsis biomass.

• Safety assessment for oral consumption
  Subchronic toxicology tests demonstrated that Nannochloropsis biomass has a NOAEL (no observed adverse effect level) of 6000 mg/kg body weight per day in rodents. No genotoxicity, organ damage or negative physiological responses were observed under recommended application dosages. European Food Safety Authority (EFSA) reviewed safety data and approved Nannochloropsis as a novel food raw material.

• Nutrient bioavailability
  Animal feeding trials confirmed protein apparent biological value of Nannochloropsis powder ranges from 58% to 77%. After supplementation, significant EPA accumulation in liver tissue was detected, proving that whole-cell algae nutrients can be effectively absorbed by organisms. Cell wall disruption (enzymatic treatment, ball milling) further improves lipid and EPA bioavailability.

• Application efficiency in aquafeed
  Up to 50% of fish oil can be replaced by Nannochloropsis powder in European sea bass diets without negative impacts on growth performance and feed utilization. As live feed enrichment for rotifers and artemia, the powder improves survival rate and stress resistance of marine fish larvae, which explains its long-term widespread use in hatcheries globally.

Frequently Asked Questions (FAQ Section — Google Featured Snippet Friendly)

Q1: What is the difference between Nannochloropsis Powder and Chlorella Powder?

Chlorella focuses on high protein, Chlorella Growth Factor and detoxification functions, with low PUFA content. Nannochloropsis powder is the dominant commercial microalgae for natural EPA. Its core advantage lies in high omega-3 EPA, while containing moderate protein and pigments. The two materials can be compounded, but cannot substitute each other completely.

Q2: Does Nannochloropsis Powder contain DHA?

Whole-cell natural Nannochloropsis biomass mainly synthesizes EPA; DHA content is extremely low or non-detectable. This characteristic makes it ideal for formulations requiring EPA-only supplementation, without excess DHA intake.

Q3: Is Nannochloropsis Powder suitable for vegan formulations?

Yes. Nannochloropsis is photosynthetic marine microalgae. It is vegan, free of fish allergens, heavy metal pollution risks associated with wild fish sources, and complies with clean-label, plant-based product trends.

Q4: Why does cell wall treatment matter for Nannochloropsis Powder?

Nannochloropsis has a rigid cellulose-containing cell wall. Undisrupted powder lowers EPA digestibility. Enzymatic hydrolysis, high-pressure homogenization or ball milling break cell walls, increasing lipid extraction efficiency by more than 40% and improving nutrient absorption for animals and humans.

Q5: How should Nannochloropsis Powder be stored?

EPA is susceptible to oxidation. The powder requires sealed, low-temperature storage, protected from light and oxygen. Vacuum packaging and nitrogen flushing effectively extend shelf life and prevent fatty acid deterioration.

Q6: Can Nannochloropsis Powder be used directly in human food?
Nannochloropsis oceanica / gaditana have been approved as novel food raw materials in China, EU, USA (GRAS notification). Direct application requires food-grade lyophilized/spray-dried powder meeting microbial and heavy metal specifications, following maximum recommended dosage standards.

Main Commercial Applications

• Aquaculture Feed (Largest Market Segment)
  Larval live feed enrichment (rotifer, artemia enrichment), additive for shrimp, marine fish, abalone feed. Improves larval survival, enhances immunity, increases meat quality, partially replaces fish oil to reduce dependence on wild fishery resources.
• Nutraceutical & Functional Food
  Raw material for vegan omega-3 supplements, functional beverage powder, plant-based food fortification. Target groups: vegetarian consumers, cardiovascular health support, daily anti-inflammatory nutrition.
• Cosmetic Raw Material
  Antioxidant ingredients, moisturizing formulations. EPA, carotenoids and chlorophyll help resist oxidative skin damage; widely used in natural skincare brands.
• Biorefinery Co-production
  After lipid extraction for algae EPA oil, residual algae powder (algal meal) can still be utilized as organic fertilizer or low-cost feed raw material, realizing full biomass utilization.
  

Conclusion

As a natural marine microalgae biomass with proven scientific value, Nannochloropsis Powder stands out among sustainable bio-based raw materials, mainly relying on its unique natural EPA resource. Supported by abundant published academic research and continuous market demand growth, Nannochloropsis powder will maintain stable expansion in aquafeed, functional food and cosmetic sectors. For raw material purchasers, selecting strains, production technology (open pond vs photobioreactor), cell wall treatment status and independent COA testing are critical evaluation standards for high-quality Nannochloropsis powder.

Reference List (Complete Standard Academic Format)

[1] Gatrell K, et al. Bioavailability and Safety of Nutrients from the Microalgae Chlorella vulgaris, Nannochloropsis oceanica and Phaeodactylum tricornutum in C57BL/6 Mice. Nutrients, 2018, 10(8):1012. PMCID: PMC6116023
[2] Ryckebosch E, et al. Bioactivity and Digestibility of Microalgae Tetraselmis sp. and Nannochloropsis sp. as Basis of Their Potential as Novel Functional Foods. Foods, 2023, 12(2):314. PMCID: PMC9861193
[3] European Commission. Safety summary document: Nannochloropsis oculata biomass as novel food ingredient. 2022.
[4] Li Y, et al. Subcritical fluid and molecular distillation extraction of Nannochloropsis gaditana lipid and its metabolic benefits in hyperlipidemic mice. Frontiers in Nutrition, 2025, 12:1615332.
[5] Qiao J, et al. Effects of Nannochloropsis sp. as fish oil replacement in olive flounder diets. Aquaculture Nutrition, 2014.
[6] Lu Y, et al. The influence of storage conditions on hygiene condition and eicosapentaenoic acid oxidation in Nannochloropsis algae. Journal of Applied Phycology, 2024.
[7] Dataintelo. Global Nannochloropsis Market Report 2025–2034. Industry Market Analysis, 2026.
[8] Haas S, et al. Nannochloropsis sp. as sustainable lipid source for European sea bass (Dicentrarchus labrax). Aquaculture, 2016.