Marine Lipids & Omega-3

The ocean is the most productive oilfield on the planet. Small pelagic fish such as anchovy, sardine and mackerel, cold-water crustaceans, and single-celled microalgae all channel solar energy into long-chain omega-3 polyunsaturated fatty acids — eicosapentaenoic acid (EPA, 20:5), docosapentaenoic acid (DPA, 22:5) and docosahexaenoic acid (DHA, 22:6) — the molecular workhorses behind membrane biology, lipid research and a growing list of industrial formulations. Eata Marisource supplies marine lipids and omega-3 oils in a range of chemical forms, purities and scales, for laboratories, formulators and production facilities alike.

One oil is rarely the answer. The same omega-3 story can be told as a crude fish oil, a re-esterified triglyceride concentrate, an ethyl-ester form for assay work, or a phospholipid-bound oil from Antarctic krill. Each chemical form behaves differently in absorption, stability and downstream processing, which is why we carry the full ladder of marine lipid products and help you pick the rung that fits your process. The catalogue below gives an overview of the categories we currently supply.

From Sea to Science

Marine lipids carry a chemical fingerprint no land crop can reproduce. EPA and DHA are elongated and desaturated by marine organisms through pathways that terrestrial plants simply do not have, which makes the sea the primary natural source of preformed long-chain omega-3s. Among the fish species analysed, anchovy shows some of the highest concentrations — roughly 14 mg EPA and 15 mg DHA per gram of dry matter — which is why the small oily fish of cold upwelling zones remain the benchmark raw material for the industry.

• Molecular diversity — beyond EPA and DHA, marine oils carry DPA, squalene, alkylglycerols, astaxanthin and a wide range of minor lipids.
• Form flexibility — triglycerides, ethyl esters, re-esterified triglycerides and phospholipid forms, each with distinct physical and biological behaviour.
• Sustainable sourcing — small pelagic fish, krill and fermented microalgae give supply chains that can be scaled and traced.
• Industrial reach — from aquafeed and cosmetics to coatings and research media, marine lipids are functional ingredients, not just supplements.

Product Range

Our marine lipid portfolio is organised into five product families, covering the whole spectrum from commodity oils to specialty fractions:

• Conventional Fish Oils — crude and refined oils from anchovy, sardine, mackerel and salmon, with defined EPA/DHA profiles for feed, industrial and research use.
• Omega-3 Oils & Concentrates — EPA/DHA enriched oils in triglyceride, ethyl-ester and re-esterified triglyceride forms, with a range of concentration levels.
• Algal DHA & EPA — fermentation-derived oils from microalgae such as Schizochytrium, offering consistent DHA and DHA/EPA ratios without fish inputs.
• Marine Phospholipids — krill oil and phospholipid-bound EPA/DHA, valued for phosphatidylcholine content and water-dispersible behaviour.
• Specialty Marine Lipids — shark liver oil, squalene, squalane, alkylglycerols and other niche fractions for cosmetic, pharmaceutical research and technical applications.

Choosing the Right Form

The same EPA and DHA molecules can be delivered in several chemical packages, and the choice changes everything downstream. Here is how we frame the decision:

• Triglyceride (TG) — the natural form in fish and algae, preferred for feed, cosmetics and applications where native composition matters.
• Ethyl ester (EE) — the standard concentrate format for high EPA/DHA assay materials and chemical processing intermediates.
• Re-esterified triglyceride (rTG) — concentrates converted back to triglyceride form for better stability and handling in finished products.
• Phospholipid (PL) — omega-3s bound to phosphatidylcholine, the form found in krill, with distinct absorption and emulsion properties.

Product Portfolio at a Glance

Table 1 — Product Portfolio at a Glance

From Catch to Concentrate

Turning raw marine biomass into a defined lipid product is a chain of careful steps, each of which affects the quality that lands in your tank or assay:

• Extraction — mechanical pressing, enzymatic hydrolysis and solvent processes recover the oil from fish, krill or algal biomass.
• Refining — neutralisation, bleaching and deodorisation remove free fatty acids, pigments and volatile odour compounds.
• Winterisation — chilling and filtration separate high-melting fractions for a clear, stable oil.
• Concentration — ethyl esterification, urea fractionation, molecular distillation and supercritical CO2 methods raise EPA/DHA content to specification.

Because oxidation is the enemy of every polyunsaturated oil, we pay particular attention to peroxide values, anisidine values, metal content and antioxidant systems throughout the chain.

Quality and Data

• Composition data — EPA, DHA and full fatty-acid profiles by GC, per batch.
• Freshness markers — peroxide value, anisidine value and free fatty acids stated on every certificate.
• Purity control — trans-fat content, heavy metals, PCB and dioxin data on request, aligned with research-grade expectations.
• Stability support — recommended antioxidants, packaging and storage conditions matched to the lipid form.
• Traceability — species or strain, catch or fermentation origin, and full production records behind each lot.

Custom Lipid Solutions

Research programmes and industrial projects rarely fit a catalogue line exactly. Our custom lipid services are built around your target specification:

• Tailored EPA:DHA ratios — blend or fractionate to hit a specific omega-3 profile.
• Form conversion — move between TG, EE, rTG and phospholipid forms to match your application.
• Antioxidant systems — natural tocopherol, rosemary or custom oxidation-protection packages.
• Packaging and scale — from laboratory ampoules and bottles to drums and flexitanks for production trials.

Share your target composition, application or endpoint, and we will propose a marine lipid solution engineered around it. Contact Eata Marisource with your specification and we will take it from there.

For Research or Industrial Raw Materials, Not For Personal Medical Use!