The ocean's most productive protein factory runs on sunlight. Seaweeds and microalgae convert light, water and carbon dioxide into protein at a density that terrestrial crops struggle to match — and that biochemistry is now arriving in ingredient form. Algal proteins come as powders and concentrates; algal peptides come as hydrolyzed, low-molecular-weight fractions built for solubility and fast integration into a formulation.
Eata Marisource covers the algal protein spectrum in three related categories — seaweed proteins, microalgal proteins, and algal protein hydrolysates and peptides. All are supplied as research and industrial grades with full analytical documentation, so the material you evaluate at bench scale is the material you scale with.
Three Categories, One Sourcing Standard
The algal protein family is broad, and the right starting point depends on the brief. The table below maps the three categories we supply and how they differ:
| Category |
Typical Sources |
Typical Protein |
Typical Forms |
| Seaweed Proteins |
Macroalgae: kelp, wakame, nori |
40–80% depending on grade |
Powder, concentrate, isolate |
| Microalgal Proteins |
Spirulina, chlorella, Nannochloropsis |
50–70%+ |
Whole-cell powder, protein powder |
| Algal Protein Hydrolysates & Peptides |
Spirulina and chlorella hydrolysates |
≥ 60%, peptide-enriched |
Hydrolyzed powder, small peptide fraction |
All three families share the same sourcing discipline: species traceability, documented processing and lot-level release testing.
Macroalgal protein sits at the less-traveled end of the algal spectrum, which is exactly why it interests formulation teams looking for clean-label, allergen-free material with a distinct marine origin. Our seaweed protein line covers:
- Kelp protein — a high-protein concentrate from Macrocystis pyrifera, water-dispersible for beverage and powder concepts
- Nori and wakame fractions — species-specific protein material for regional and specialty briefs
- Functional concentrates and isolates — processed for clean-label, allergen-free positioning
| Product |
Typical Protein Content |
Typical Application Context |
| Kelp protein concentrate |
~80% |
Beverage and powder prototypes |
| Seaweed protein isolate |
60–80% |
Clean-label formulation work |
| Seaweed protein powder |
40–60% |
General research and industrial use |
Figure 1. Fresh macroalgae — the botanical starting point of our seaweed protein line.
Spirulina and chlorella are the workhorses of microalgal protein, and for good reason: they carry a complete amino acid profile at protein levels that rival soy, with a much smaller production footprint. Chlorella additionally brings a thick cell wall, so processing matters — our grades are produced with cell wall breakage above 95% to make the protein actually accessible.
Figure 2. Spirulina microalgal protein — a deep green, free-flowing powder.
| Parameter |
Typical Value |
| Protein (dry basis) |
50–70%+ depending on grade |
| Amino acid profile |
Complete, all essential amino acids |
| Chlorophyll |
≥ 1.0–1.5% |
| Cell wall breakage (chlorella) |
≥ 95% |
| Particle size |
95% through 100 mesh |
| Appearance |
Deep green fine powder |
Species options include spirulina (Arthrospira platensis), chlorella (Chlorella vulgaris) and Nannochloropsis, with organic and non-GMO sourcing available on request. Yield is part of the appeal — microalgae produce roughly 10 to 20 times more protein per acre than soy.
Figure 3. Microalgae cultivation in controlled open systems.
When the brief calls for solubility and small molecules, the hydrolyzed layer of the family comes into play. Algal protein hydrolysates are produced by enzymatic breakdown of spirulina and chlorella protein, yielding water-soluble powders with a controlled degree of hydrolysis and an enriched peptide fraction.
Figure 4. Algal protein sample under laboratory evaluation.
| Parameter |
Typical Value |
| Protein (Kjeldahl) |
≥ 60% |
| Degree of hydrolysis |
15–25%, customizable |
| Small peptide fraction |
< 3 kDa available |
| Peptide content (chlorella active peptide) |
≥ 80% |
| Appearance |
Light green to green free-flowing powder |
| Solubility |
Water-soluble |
- Chlorella active peptide — a high-peptide-content grade for bioactivity-focused research
- Spirulina protein hydrolysate — a mild flavor profile suited to beverage and stick-pack concepts
- Custom degree of hydrolysis — targeted windows to tune solubility and peptide size
Figure 5. Water-solubility check on hydrolyzed algal protein — green, clear dispersion.
Where the Ingredient Earns Its Place
Algal protein shows up across a wider range of programs than most marine ingredients, which makes sense given how many different fractions the family contains. Common deployment patterns include:
- Nutraceutical development — plant-forward protein and peptide concepts in powders, tablets and capsules
- Functional beverage work — soluble algal protein for ready-to-mix and liquid prototypes
- Cosmetic and personal-care R&D — green marine actives in serum, cream and mask concept work
- Pet and animal nutrition — hypoallergenic protein sources for specialty feed prototypes
- Laboratory and industrial research — algal protein standards and hydrolysis references for method work
Documentation and Data on Request
Every lot ships with a certificate of analysis covering protein content, amino acid profile, degree of hydrolysis, molecular weight distribution, chlorophyll, metals and microbiology. MSDS, technical data sheets and stability data are available on request, and evaluation samples are supplied for R&D screening before volume commitments.
Figure 6. Sample-scale packaging for research screening and pilot trials.
Customization — Shaping Algal Material Around Your Brief
Standard grades cover a meaningful share of requests; the rest is where our customization service comes in. The algal family is wide enough to tune in several directions:
- Protein level targeting — from whole-cell powders to high-protein concentrates and isolates
- Hydrolysis control — degree of hydrolysis and peptide size windows tuned to your formulation
- Species and sourcing — spirulina, chlorella, Nannochloropsis or macroalgae, organic or conventional
- Physical properties — particle size, flowability and color adjusted for downstream processing
- Documentation — certificate parameters and test methods aligned to your internal specification
Algal protein is a young ingredient category, which means the supply chain you choose matters more than usual. Requesta sample and full documentation from Eata Marisource to test the material in your own formulation.
For Research or Industrial Raw Materials, Not For Personal Medical Use!