bioecon Member area
Technology · Blue bioeconomy / Aquaculture & seafood

Microalgae (seafood/feed)

Cultivating microalgae to produce sustainable omega-3 oils and protein for aquafeed and human nutrition.

Risk: low FeedFishery & aquaculture US · EU · CN · IN Science: why it works → verified 2026-06-24 · 8 Sources (0 independent)

1 · What it gives

Microalgae are the foundational primary producers of the marine food web, synthesizing the essential omega-3 fatty acids (EPA and DHA) that accumulate in fish. By cultivating microalgae directly—via massive open ponds, closed photobioreactors, or dark heterotrophic fermentation—the aquaculture industry sources these nutrients without relying on wild-caught forage fish (fishmeal and fish oil). Elite strains now accumulate EPA and DHA at 30–50 percent of total lipids, and heterotrophic fermenters exceed 100,000 liters, making algal oil the scalable substitute for fish oil as wild stocks decline and global seafood demand rises.

The key directions of microalgae for aquaculture are:

  1. Heterotrophic Fermentation: Sugar-fed strains such as Schizochytrium are grown in dark stainless-steel bioreactors exceeding 100,000 liters, delivering consistent quality and very high omega-3 accumulation — the preferred route to replace fish oil in aquafeed.
  2. Autotrophic Open-Pond Cultivation: Sunlight and CO2 drive spirulina and chlorella in raceway ponds, a low-cost legacy process for human supplements and domestic feed.
  3. Closed Photobioreactors (PBRs): Sealed PBR systems deliver high-purity, low-contamination biomass at higher capital cost, suited to high-value strains.
  4. Aquafeed Integration: Algal oils and meals are formulated into extruded feed pellets, cutting the Fish-In-Fish-Out (FIFO) ratio of salmon and shrimp farming.

Sectoral value chain#

[Strain Selection] ──> [Cultivation] ──> [Harvesting] ──> [Extraction]
                              │
                      (Dewatering)
                              │
                              ▼
[Farmed Seafood] <─── [Aquafeed Formulation] <─────┘

Value chain levels#

LevelDescriptionKey inputs/outputs
Strain selectionIdentifying high-lipid microalgae strains with strong EPA/DHA profiles.In: Wild algae.
Out: Elite strains.
Upstream cultivationGrowing algae via sunlight or sugar-fed fermentation.In: Strains, nutrients.
Out: Wet algal biomass.
Harvesting & dewateringConcentrating dilute microalgal broth into workable paste.In: Wet algal biomass.
Out: Algal paste.
ExtractionIsolating omega-3 lipids and proteins from the paste.In: Algal paste.
Out: Algal oil, meal.
Feed formulationBlending algal ingredients into commercial aquafeed.In: Algal oil, meal.
Out: Commercial aquafeed.
Aquaculture farmsFeeding farmed salmon, shrimp, and other species.In: Commercial aquafeed.
Out: Farmed seafood.

Cross-cutting technologies of the sector:

  • Heterotrophic Fermentation: Dark, sugar-fed bioreactors deliver massive scale and high lipid yields independent of sunlight.
  • Photobioreactors: Closed systems produce high-purity biomass with tight contamination control.
  • Open-Pond Cultivation: Low-CapEx raceway ponds dominate bulk spirulina and chlorella output.

2 · What it replaces 6 · matched by industry

D1E–Insect meal, single-cell protein and algal ingredients instead of fishmeal and soybean meal in feed
Replaces: Fishmeal from reduction fisheries (anchoveta, sandeel); soybean meal from deforestation frontiers (with antinutritional factors and …
FEED
D1E4Gas-fermented single-cell protein (methane, CO2 and industrial off-gas) instead of fishmeal and imported protein concentrates in feed
Replaces: Fishmeal from reduction fisheries and imported soybean/rapeseed protein concentrates in compound feed (as a formula share)
FEED
D1E2Feed enzymes (phytase) and fermentation amino acids instead of inorganic phosphate and excess crude protein
Replaces: Dicalcium phosphate / rock-phosphate P supplements in pig and poultry feed; excess soybean-meal crude protein (ammonia, nitrate pollution); …
FEED
D1E–Mycotoxin risk managed by enzymes and biological detoxification instead of clay binders alone
Replaces: Clinoptilolite/bentonite "binders" as the only response to mycotoxin contamination (they adsorb aflatoxin but little else, dilute feed and …
FEED
D0E–Bacteriophage therapy for bacterial disease in fish and shrimp farming instead of medicated-feed antibiotics
Replaces: Antibiotics in medicated feed and bath treatments - oxytetracycline, florfenicol, oxolinic acid, enrofloxacin, sulfonamide-trimethoprim …
VET
D1E–Enteric methane from cattle and sheep reduced by bromoform-containing red seaweed (Asparagopsis), essential-oil and plant-extract feed additives, and low-methane genetics — instead of unabated emissions and synthetic inhibitors alone
Replaces: Unabated enteric methane; reliance on the synthetic inhibitor 3-nitrooxypropanol (3-NOP) as the only approved tool; ionophore antibiotics …
FEED

3 · How to implement 6 steps

  1. 1
    Strain screeningStrains & cell lines
    Marine microalgae with naturally high EPA/DHA profiles are isolated and characterized, selecting elite strains whose lipids reach 30–50 percent omega-3 content.
    Who can do this step matched automatically
    Esco Aster Singapore
    ✓ FSSC 22000 ✓ ISO 22000 5,000 L industrial scale
    “Platform and capabilities: end-to-end support from discovery to market approvals, with services spanning cell line creation, GMP/MO handling, CMC/PD/AD, MSAT …”
    CHITOSE Japan
    industrial scale
    “STABLE CELL LINE DEVELOPMENT SERVICE”
    CABIO 嘉必优 (SSE 688089) China
    ✓ FSSC 22000 600 tons
    “Synthetic Biology”
  2. 2
    Upstream cultivationFermentation & cultivation
    Strains are scaled under optimal autotrophic (sunlight/CO2) or heterotrophic (sugar-fed) conditions in ponds, photobioreactors, or dark fermenters.
    Who can do this step matched automatically
    Loopworm India
    ✓ GMP+ / FAMI-QS ✓ HACCP ✓ ISO 22000 6,000 tonnes/year industrial scale
    “At Loopworm, we are building the future of sustainable biomanufacturing.”
    Grobest Global Service Taiwan
    industrial scale
    “Core products/technology include Growth Enhance, Immunity Enhance, Daily Healthcare feeds, Health Additives, and Water & Soil Treatment using advanced fermentation technology …”
    Advanced Enzyme Technologies (NSE) India
    ✓ FSSC 22000 ✓ GMP+ / FAMI-QS ✓ ISO 22000 500 m3
    “Technology: microbial fermentation with ~500 m3 fermentation capacity; 15+ patents; developed/upscaled probiotic production technologies.”
  3. 3
    Harvesting & dewatering
    Dilute microalgal broth is concentrated into algal paste — an energy-intensive step that remains the main economic barrier for autotrophic systems.
  4. 4
    Lipid extractionExtraction
    Omega-3 lipids and proteins are isolated from the paste, with oxidative stability during downstream processing a constant technical focus.
    Who can do this step matched automatically
    Angel Yeast 安琪酵母 (SSE 600298) China
    ✓ HACCP ✓ ISO 22000 228,000 tons
    “It produces bread/Chinese-staple yeasts, yeast extracts, brewing yeasts, yeast protein and other food ingredients, animal feed additives, and nutrition/health products, leveraging …”
    Aum Enzymes / Infinita Biotech India
    “Aum Enzymes is a metabolic engineering firm specializing in generally regarded safe microbial origin Industrial, Food, Feed, Neutraceutical, cosmetic, plant origin [botonical] …”
    VTR Biotech 溢多利 (SZ 300381) China
    “VTR Biotech is a global science-driven biotechnology company founded in 1991, active in research, development, production, and distribution of advanced enzyme solutions, plant …”
  5. 5
    Aquafeed formulationFormulation & blending
    Algal oils and meals are blended into extruded feed pellets that replace wild fish oil, directly lowering the FIFO ratio of salmon and shrimp farming.
    Who can do this step matched automatically
    SyAqua Group Thailand
    “vannamei genetics (broodstock, nauplii, and post-larvae) built on genomic selection/marker-assisted selection plus quantitative genetics (BLUP), with disease resistance screening …”
    Alltech United States
    ✓ HACCP ✓ ISO 22000
    “Our team produces specialty ingredients, premix supplements, feed and biologicals, backed by science and an unparalleled platform of services.”
    Zhejiang NHU Company China
    ✓ GMP+ / FAMI-QS ✓ ISO 22000 industrial scale
    “Looking ahead, NHU will remain committed to advancing nutrition and health by leveraging its biotechnology, chemical synthesis, and microencapsulation technology platforms.”
  6. 6
    Aquaculture integrationFermentation & cultivation
    Formulated feed is deployed across salmon, shrimp, and other farms, with farmed seafood increasingly marketed as “ocean-safe” or “zero marine ingredient” — pointing toward a circular marine bioeconomy fed by next-generation cellulosic or upcycled feedstocks.
    Who can do this step matched automatically
    Loopworm India
    ✓ GMP+ / FAMI-QS ✓ HACCP ✓ ISO 22000 6,000 tonnes/year industrial scale
    “At Loopworm, we are building the future of sustainable biomanufacturing.”
    Grobest Global Service Taiwan
    industrial scale
    “Core products/technology include Growth Enhance, Immunity Enhance, Daily Healthcare feeds, Health Additives, and Water & Soil Treatment using advanced fermentation technology …”
    Advanced Enzyme Technologies (NSE) India
    ✓ FSSC 22000 ✓ GMP+ / FAMI-QS ✓ ISO 22000 500 m3
    “Technology: microbial fermentation with ~500 m3 fermentation capacity; 15+ patents; developed/upscaled probiotic production technologies.”

4 · Who delivers

Matched suppliers (matched automatically)

Parry Nutraceuticals (EID Parry)IndiaProduceractive
Yunnan Green A 绿AChinaNot classifiedactive
CorbionNetherlandsNot classifiedactive
BioMarDenmarkNot classifiedactive
ADM / Sophie's BioNutrientsSingaporeProduceractive
AllmicroalgaePortugalResearch / RTOactive
BrevelIsraelProduceractive

Listed suppliers

BioMar · Corbion · Parry Nutraceuticals (EID Parry) · Yunnan Green A 绿A

In the services and supply catalogue 2 · paid service

Engineering, EPC & validation · Nutrients & supplements

Leading companies and institutes (from the brief)

Company / InstituteCountryKey products / platformsTech featuresStatus 2026
Corbion🇳🇱 NetherlandsAlgaPrime DHAHeterotrophic fermentationcommercial
Veramaris🇺🇸 USAAlgal EPA/DHA oilsFermentation for salmon feedcommercial
BioMar Group🇩🇰 DenmarkSustainable aquafeedMicroalgae feed formulationcommercial
AlgaEnergy🇪🇸 SpainMicroalgae nutritionPhotobioreactor cultivationcommercial
Parry Nutraceuticals🇮🇳 IndiaSpirulina & ChlorellaOpen-pond cultivationcommercial
Yunnan GreenA🇨🇳 ChinaSpirulina productionLarge-scale open pondscommercial

5 · Rules & route to market

Route into Russia / EAEU: FEED · Rosselkhoznadzor (expertise by VGNKI)
state registration within 45 working days after acceptance of documents (plus dossier and tests)
Information, not legal advice — confirm the procedure for your product. (2026-10-06)
United States

The United States pioneers high-volume heterotrophic fermentation, operating massive facilities that supply the global salmon-farming industry with algal oil.

Heterotrophic fermentation, algal omega-3, spirulina heritage#

  • Veramaris: Runs large-scale fermentation to produce EPA and DHA algal oils for salmon feed, decoupling aquaculture from wild forage fish.
  • Earthrise Nutritionals: A long-established spirulina producer operating open-pond farms for human nutritional supplements.
  • Industrial fermentation: US bioreactor capacity anchors the global supply of fermentation-derived omega-3 ingredients.
European Union

Europe is a driving force in aquafeed sustainability, where feed giants and biotech firms integrate microalgae to cut the FIFO ratio of salmon farming.

Aquafeed sustainability, AlgaPrime DHA, photobioreactors#

  • Corbion: Produces AlgaPrime DHA through heterotrophic fermentation, a leading algal omega-3 ingredient for salmon feed.
  • BioMar Group: Aggressively formulates microalgae into sustainable aquafeed to reduce reliance on wild fish oil.
  • AlgaEnergy & Necton: Advance photobioreactor and open-pond microalgae cultivation for nutrition and specialty ingredients.
China

China dominates global spirulina and chlorella production in massive open-pond systems, supplying human supplements and domestic aquaculture.

Spirulina scale, open ponds, domestic aquaculture#

  • Yunnan GreenA: Operates large-scale open-pond spirulina facilities, among the world’s biggest microalgae production sites.
  • Chlorella capacity: Domestic growers expand chlorella output for both nutraceutical and aquafeed markets.
  • Inland cultivation: Favorable climate and land enable inland open-pond clusters at industrial scale.

6 · Money: tenders & grants

GrantAfrican Union – European Union Partnership on Food and Nutrition Security and Sustainable Agriculture (FNSSA)
European Commission · EU
Sep 23, 2027
342 days
GrantAdvancing sustainable maintenance and repair measures for existing buildings
European Commission · EU
Dec 1, 2026
46 days
GrantContinuing Human Enabling Enhancing Restoring and Sustaining
Air Force -- Research Lab · United States
Aug 22, 2044
6520 days
GrantDevelopment of cell-free protein synthesis platforms for discovery and/or production of biologicals
European Commission · EU
Apr 13, 2027
179 days
GrantFirst in Human and Early Stage Clinical Trials of Novel Investigational Drugs or Neuromodulatory Device-based …
National Institutes of Health · United States
Oct 15, 2027
364 days

7 · Tech stack & innovations

Cultivation technologies are bifurcated into autotrophic (sunlight-driven) and heterotrophic (sugar-fed) systems, each with distinct economics and end markets.

  1. Heterotrophic Fermentation:
    • Sugar-fed strains like Schizochytrium grow in dark stainless-steel bioreactors exceeding 100,000 liters, accumulating EPA and DHA at 30–50 percent of total lipids.
    • Delivers consistent quality and the scale needed to replace fish oil in commodity aquafeed.
  2. Autotrophic Open Ponds:
    • Sunlight and CO2 drive raceway ponds for spirulina and chlorella, cheap to build but prone to contamination and lower yields.
    • The legacy workhorse for human nutraceutical supplements and emerging domestic feed.
  3. Closed Photobioreactors (PBRs):
    • Sealed transparent systems deliver high-purity, contamination-free biomass with tight process control.
    • Higher capital cost is justified for high-value strains and pristine nutritional output.

Sources 8 · 0 independent · 8 producer sites

Producers' own sites 8

  1. Corbion producer checked 2026-06-22 · link not kept
  2. Veramaris producer checked 2026-05-06 · link not kept
  3. Earthrise nutritionals producer checked 2026-06-14 · link not kept
  4. Algaenergy producer checked 2026-04-28 · link not kept
  5. Necton producer checked 2026-06-16 · link not kept
  6. Parry nutraceuticals producer checked 2025-04-25 · link not kept
  7. Yunnan greena producer checked 2026-06-24 · link not kept
  8. Biomar producer checked 2026-04-21 · link not kept