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Powdered Macrocystis pyrifera

Kelp Powder

Wet kelp is dried to 12% moisture and then milled into 300 µm particles. This process ensures optimal preservation of alginates and other essential components of the seaweed, and the product is aimed mainly at the animal feed market.

View composition and technical data sheet
25 kg sack and 1 kg sample of Macrocystis pyrifera seaweed meal from Huiro Regenerativo

Specifications

Moisture
12 %
Dry, free-flowing powder
Particle size
~300 µm
Fine milling, no chemical extraction
Formats
5 · 25 · 50 kg
5 kg sample; 25 and 50 kg standard; bulk on request
Shelf life
12 months
Unopened, in a cool, dry place

Applications across industries

  • Fish and animal feed

    Functional ingredient with the whole seaweed matrix: polysaccharides, mannitol and minerals.

  • Agricultural biostimulant

    Dry, free-flowing format, easy to dose as a process raw material.

  • Cosmetics

    Marine ingredient with alginate, fucoidan and minerals for cosmetic formulations.

  • Nutraceuticals and pharmaceuticals

    Dry, stable raw material for formulations and bioactive extraction.

Composition

Typical composition

Typical analysis on a dry basis, technical data sheet HR-Powder-MP V1 (September 2026). Limit of quantification: 0.5% w/w.

Component Value Note
Total carbohydrates 28–31 % sum of monomers
Alginate 21–26 % main polysaccharide
Fucose 1,7–3,4 % fucoidan indicator

Request documents

Request this product’s technical data sheet or certificate of analysis and we’ll send them to your email.

A person in a cap hauling a kelp grow line in over the side of the boat Map of the Los Lagos Region in southern Chile, showing Puerto Montt and Chiloé Kelp gametophytes under the microscope

Fine, dry, traceable powder

  • Farmed Macrocystis pyrifera, not wild-harvested: every cycle captures carbon and nutrients and regenerates the ecosystem where it grows.

  • Farmed and harvested in Chilean Patagonia. Every batch is traceable and supply can be scheduled.

  • 5 kg sample format for technical trials, and batch certificate of analysis on request.

Huiro-branded 25 kg sack and bag of kelp powder

5, 25 and 50 kg formats, or bulk

Dry packaging; 12-month shelf life unopened, stored in a cool, dry place. Once opened, reseal tightly and keep dry.

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Frequently asked questions

What is the difference between Kelp Paste and Kelp Powder?

Kelp Paste is a stabilized paste with 80% moisture, packed under oxygen displacement and intended for cosmetics, nutraceuticals and biomaterials. Kelp Powder is dried to 12% moisture and milled to ~300 µm, and is aimed at animal feed and agricultural biostimulants.

What particle size and moisture content does Kelp Powder have?

It is dried to 12% moisture and milled to ~300 µm: a fine, free-flowing powder that is easy to dose and preserves the alginates and the rest of the seaweed matrix.

What are the main active compounds in your kelp?

Our formats preserve the whole seaweed matrix: alginate (21–26% dry basis), fucoidan (measured through its indicator, fucose), mannitol and minerals, with total carbohydrates standardized at 28–31% dry basis.

What industrial formats are available for sale and shipping?

5 kg formats for samples and technical trials, standard 25 kg and 50 kg formats, and bulk sales for large production volumes.

Do you test for contaminants and heavy metals?

Yes. Every batch has certified analyses under ISO/IEC 17025. We monitor and report cadmium, arsenic, lead and mercury to certify safety, as well as pesticides, antibiotics, nitrofurans and dyes.

How can I request technical data sheets or quotes?

Download this product’s technical data sheet from the Composition section, or click “Buy” to contact our industrial sales team. We’ll also send you the batch certificate of analysis.

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