Bladderwrack Extract Powder

Bladderwrack, the brown seaweed Fucus vesiculosus of cold Atlantic shores, supplies the thallus for this extract. The seaweed is extracted in water, concentrated and dried to a light brown powder. Holdfasts and other seaweeds are not part of the material.

This bladderwrack extract is a 10:1 ratio extract with no marker assay and no fucoidan or iodine percentage. The powder is milled to 80 mesh and disperses in water. A milled bladderwrack powder and a fucoidan polysaccharide powder are listed as separate products.

SKU: BOT-BEX-0222 Category: Botanical Extracts Tags: Bars & Bakery, Bladderwrack, Gummies & Chews, Plant Extracts, Seaweed & Algae, Water Extracted

Fucus vesiculosus Thallus Source & Identity

The botanical entity is Fucus vesiculosus L., a brown alga of the order Fucales that grows on rocky shores of the North Atlantic, the North Sea and the Baltic. The part used is the thallus, the whole flattened frond with a prominent midrib. Holdfasts and attached epiphytes are not part of this bladderwrack extract.

Its common name comes from the paired air bladders that sit on either side of the midrib. Ascophyllum nodosum, knotted wrack, has a single bladder per frond, and kelps such as Laminaria have no bladders and a different structure. Other Fucus species, such as F. serratus and F. spiralis, are also found on commercial lists.

Sulfated fucose polysaccharides called fucoidans, alginate, polyphenols and iodine are characteristic of the seaweed.

Bladderwrack Extract vs Powder & Fucoidan

Form	What It Is	Choose It When
10:1 Bladderwrack Extract	Water extract of the thallus, ratio-defined	A dispersible seaweed extract without a marker is needed
Bladderwrack Powder	Dried, milled bladderwrack with no extraction	Whole-seaweed material with fibre and minerals is wanted
Fucoidan Polysaccharide Powder	Polysaccharide-focused powder from brown seaweed	The specification is built around fucoidan

The 10:1 ratio measures seaweed going into the extract. It is not a fucoidan or iodine assay. Natural iodine in brown seaweed varies with species, season and growing site, so the extract is defined here by species, part, solvent and ratio, with no iodine figure.

The three rows are three specification bases: a ratio extract, a milled whole seaweed and a polysaccharide-led ingredient. The right choice depends on whether the specification fixes the seaweed, the form or the polysaccharide.

Typical Specifications

Specification Item	Product Information
Latin Name	Fucus vesiculosus
Plant Part	Seaweed & Algae
Processing	Water Extraction
Common Name	Bladderwrack, Rockweed
Ingredient Type	Ratio Extract
Extract Ratio	10:1
Appearance	Light Brown powder
Solubility / Dispersibility	Water Dispersible
Quality Parameters
Moisture (LOD)	≤5.0%
Total Ash	≤5.0%
Particle Size	80 mesh
Heavy Metals	Lead ≤2 ppm · Arsenic ≤1 ppm · Cadmium ≤1 ppm · Mercury ≤0.1 ppm
Microbiology	TPC ≤1,000 cfu/g · Yeast & Mold ≤100 cfu/g · E. coli Negative · Salmonella Negative/25 g
Shelf Life	24 months in unopened original packaging, cool and dry storage

Application Areas

Capsules for a Marine Extract

Bladderwrack extract fills hard capsules after a flow check at 80 mesh, and bladderwrack extract in a capsule shell keeps the marine smell and taste in the pack. Salts in the extract attract moisture, so fill in a controlled-humidity room and keep the hopper covered between runs.

Tablets with Moisture Barrier

Tablets from a salty seaweed extract soften quickly in humid air. For bladderwrack, use a dry binder, a late-added lubricant and a film coat that acts as a moisture barrier, then compare hardness at pressing and after a week of storage in the final pack.

Drink Sticks with Strong Flavours

A stick for water or juice needs a flavour that stands up to the marine note. Citrus, ginger and mint suit bladderwrack extract better than a delicate floral flavour. The powder thickens water slightly, so test viscosity and taste at the planned dose.

Dry-Blended Sachets

Sachets carry the bladderwrack extract in a sugar or fibre carrier. Sieve bladderwrack extract into the carrier before filling to stop swollen lumps forming at the surface, because bladderwrack extract hydrates unevenly when poured dry, and check dose uniformity at the start, middle and end of the filling run.

Gummy Premixes

Alginate and fucoidan fractions can influence how a gummy sets. Blend the extract into the dry sugar portion before cooking, avoid high-calcium ingredients unless gelling is intended, and check texture again after a week of storage.

Formulation Notes

Bladderwrack extract is a light brown powder with a marine odour and a salty, slightly bitter taste. In water it forms a brown, mildly viscous dispersion, because alginate and fucoidan fractions of the thallus hold water. Multivalent ions such as calcium can make the dispersion thicken or gel, which makes the choice of water an actual variable.

Dispersion is easiest when the bladderwrack powder goes into moving water or is wetted into a paste before dilution. For bladderwrack, sieve once with the carrier, then blend; this avoids concentrated specks in the dry mix. For bladderwrack, return the opened drum to a dry store with the liner pressed flat and sealed.

Packaging & Commercial Supply

Essencefield supports product evaluation, formulation trials, commercial orders, and ongoing ingredient supply. Packaging, storage, and shipping arrangements are determined by product characteristics, order quantity, stability requirements, and destination-market needs.

Supply Item	General Information
Sample	Available upon request for formulation, testing, and supplier evaluation
Order Quantities	100 g · 1 kg · 5 kg · 25 kg · 100 kg · 500 kg · Bulk
Sample Lead Time	Typically 5–7 days after sample confirmation
Production Lead Time	Typically 15–30 days after order and specification confirmation
Packaging	Suitable protective inner packaging with bags, cartons, drums, or other appropriate outer packaging
Storage	Store in tightly sealed, suitable protective packaging in a cool, dry environment. Protect from moisture, heat, and direct sunlight. Specific storage conditions follow the approved product specification.
Documentation	COA · Product Specification · TDS · SDS · Applicable declarations (as applicable)

Final order quantities, lead times, packaging, documentation, and shipping arrangements are confirmed according to the selected product and commercial requirements.