Zinc is the quiet metal of the periodic table: indispensable in biology, hard to taste, and easy to overlook. In the marine world, one organism has been concentrating it for hundreds of millions of years — the oyster, a filter feeder that pulls dissolved minerals from the water around it and binds them into its own tissue.
Eata Marisource turns that natural concentration into workable raw materials. Our marine zinc range starts with the meat of farm-raised oysters and is processed into powders that carry zinc in the way the organism itself held it — bound within a protein and peptide matrix, not simply mixed on top. Every grade is documented lot by lot, and each form can be adjusted toward the specification your project actually needs.
The Marine Zinc Range
Four working formats cover the requests we see most often. Consider the list a starting grid rather than a closed catalog — each line can be tailored.
| Format |
Source Material |
Zinc & Composition Profile |
Typical Fit |
| Oyster Zinc Extract Powder |
Oyster meat |
Naturally chelated zinc (typ. 300–1100 ppm), protein 30–50%, taurine present |
Marine mineral bases for R&D programs |
| Zinc-Rich Oyster Peptide Powder |
Hydrolyzed oyster meat |
Peptides < 1000 Da, zinc ≥ 50 ppm (measured), protein ≥ 70% |
Beverage and powder systems |
| Oyster Peptide–Zinc Chelate |
Oyster peptides + zinc (engineered) |
Zinc content and chelation documented per lot; structure per project |
Bioavailability and mechanism studies |
| Oyster Shell Mineral Extract |
Oyster shell |
Calcium-rich matrix with naturally occurring zinc and taurine |
Mineral-rich functional concepts |
Fig. 1 The zinc story starts in the growing water: oysters from managed marine farms.
Why Marine Zinc
Most zinc on the market starts as a mined salt and is added to a formula as a pure chemical. Marine zinc follows a different route: the mineral is gathered by a living organism, then recovered from that organism along with the proteins and peptides it is naturally associated with. The result is a different starting point for formulators — the zinc arrives bound to an organic matrix, which is precisely what many research programs are designed to study.
Two details from published work explain why this matters in practice. Oyster peptides carry measurable zinc-binding capacity — in one study, a purified oyster peptide fragment showed zinc-chelating ability close to 50%, several times higher than the mixed peptide fraction it came from. In another line of work, oyster peptide–zinc complexes were prepared under defined chelation conditions and characterized by spectroscopy, confirming that the mineral forms a genuine complex with the peptide rather than a simple mixture. When we speak about chelated zinc in oyster material, that is the body of evidence we are referencing.
Fig. 2 Milled, dried oyster material — the matrix that carries marine zinc.
The Product Line in Practice
Oyster Zinc Extract Powder. A straightforward marine mineral base: oyster meat extracted and dried to a fine powder that keeps its naturally occurring zinc, taurine and protein fraction. Workhorse material for projects that want the oyster’s mineral profile without added fortification.
Zinc-Rich Oyster Peptide Powder. The hydrolyzed form, with oyster protein cut into peptides below 1000 Da while zinc remains in the matrix. Water-soluble and easy to dose — the format that bridges the mineral story and the peptide story in a single ingredient.
Oyster Peptide–Zinc Chelate. An engineered format for research programs that need a defined zinc–peptide complex. Chelation conditions — peptide-to-zinc ratio, pH, temperature, time — are set with your target in mind, and the finished material ships with structure and chelation documentation.
Oyster Shell Mineral Extract. For projects built around a mineral-rich marine matrix rather than zinc alone: a fine powder carrying calcium alongside naturally occurring zinc and taurine, suited to broad mineral concepts.
Fig. 3 The finished ingredient in analytical form — fine, light-toned and mineral-rich.
Composition at a Glance
Typical values across the range, with the full measured profile on every Certificate of Analysis:
| Parameter |
Typical Range |
Notes |
| Zinc |
50 ppm – 1100 ppm (natural); higher in custom chelates |
Naturally occurring unless engineered; measured per lot by ICP/AAS |
| Protein / peptides |
30–50% (extract); ≥ 70% (peptide); 89–96% of peptides < 3000 Da (extract) |
Hydrolysis window selected by grade |
| Taurine |
Present (≥ 10% in high-taurine extract grades) |
Native to oyster tissue |
| Moisture |
≤ 6% |
Spray-dried, moisture-barrier packed |
| Heavy metals |
As ≤ 0.5 ppm, Pb ≤ 0.5 ppm, MeHg ≤ 0.5 ppm, Cr ≤ 2.0 ppm (typical limits) |
Stated per lot; growing-area records kept |
| Solubility |
Good in water (peptide grades) |
Checks before shipping on request |
Figures compile typical commercial and published ranges; the values on the Certificate of Analysis for your lot are the reference.
Fig. 4 Marine zinc in one frame: the powder and the shell it came from.
From Meat to Mineral-Enriched Powder
The process is shorter than the story suggests. Fresh or properly dried oyster meat is cleaned and, where a peptide grade is required, hydrolyzed with food-grade proteases under controlled pH and temperature. The liquor is clarified and filtered; for chelate grades, zinc is introduced under defined conditions — published chelation protocols for oyster peptides typically run at moderate temperatures, near-neutral pH and reaction times under an hour and a half. The material is then concentrated and spray-dried into a fine powder.
What survives the journey is the point: the mineral remains associated with the peptide and amino-acid matrix, which is exactly what distinguishes this ingredient family from a plain mineral salt.
Fig. 5 The mineral profile is measured, not assumed: metal analysis by ICP and AAS.
Where Marine Zinc Earns Its Place
| Application Area |
What the Ingredient Brings |
Working Forms |
| Mineral bioavailability research |
A zinc source bound to peptides rather than a free salt — material for absorption and mechanism studies |
Chelate, peptide powder |
| Nutrition & wellness development |
Marine-origin mineral base with taurine and peptides in one powder |
Extract, peptide powder |
| Beverage & functional food systems |
Water-soluble zinc carried by peptides |
Zinc-rich oyster peptide |
| Cosmetics & personal care R&D |
Marine mineral concept with organic matrix |
Extract, shell mineral extract |
| Industrial & material research |
Mineral–protein hybrid starting material for novel concepts |
All formats |
Fig. 6 Mineral-rich powder in a clean, sealable container for lab and pilot work.
Quality and Traceability
- From the water up. Growing area, species and intake records accompany every batch, so the powder can be traced back to the marine environment it came from.
- Metal analysis on every lot. Zinc, taurine and the heavy-metal panel — arsenic, lead, methylmercury, chromium — are measured per lot, not quoted from a brochure.
- Production under recognized frameworks. ISO 9001, ISO 22000 and HACCP-based systems, with Halal and Kosher certification available on request.
- Documents that travel with the goods. COA, MSDS, certificates of origin and allergen statements are assembled with each order.
Custom Zinc Programs
Marine zinc is a flexible category, and most serious projects want it pointed at a specific target. Tell us the zinc level you need, the peptide window you work with, the chelation profile you want documented, or the matrix you want built around — we will prepare samples toward it, confirm the analytical profile, and scale production so the bulk material matches the sample you approved.
For Research or Industrial Raw Materials, Not For Personal Medical Use!