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Oat beta-glucan

Oat beta-glucan suppliers and sourcing guide

Oat beta-glucan is the soluble, mixed-linkage glucose polymer found in the cell walls of oat kernels, concentrated in the bran. Concentrates are made by milling and sieving oat bran, or by extracting the bran with water or mild alkali, then precipitating, concentrating and drying the glucan. Buyers choose by beta-glucan percentage, which ranges from enriched bran near 20% to purified extracts of 70% or more, and by molecular weight, which sets viscosity.

See suppliersWhat to ask for on the COA
Category
Fibers
Also known as
oat bran beta-glucan · mixed-linkage (1-3),(1-4)-beta-D-glucan · Avena sativa · oat soluble fiber
Facts checked
November 2026

Forms and grades of oat beta-glucan

Suppliers sell different products under the same name. Specify the one you need.

  • Oat bran concentrate

    Air-classified or sieved oat bran with roughly 14 to 28% beta-glucan; contains protein, fat and starch along with the fiber.

  • Purified oat beta-glucan extract

    Water- or alkali-extracted and dried, typically 70% or more beta-glucan, low in starch and protein; used in drinks and capsules.

  • High vs. low molecular weight grades

    High-molecular-weight grades give thick solutions; enzyme-reduced grades stay thin in beverages at the same dose.

  • Gluten-free oat grades

    Made from oats grown and handled to keep wheat, barley and rye out; supplied with gluten test results.

  • Organic

    From certified organic oats, sold under organic certification.

What to check on the COA

Compare each result with your own specification when the lot arrives.

Beta-glucan content
Mixed-linkage beta-glucan by the enzymatic McCleary method (AOAC 995.16), reported on a dry basis.
Molecular weight or viscosity
Average molecular weight by size-exclusion chromatography, or solution viscosity, to confirm the grade.
Moisture, protein, fat and ash
Proximate analysis that shows how much of the powder is not fiber.
Gluten
Gluten by ELISA for gluten-free claims, since oats are often contaminated with wheat or barley in the field and mill.
Heavy metals
Lead, arsenic, cadmium and mercury by ICP-MS.
Microbiology
Total plate count, yeast and mold, coliforms or Enterobacteriaceae, E. coli and Salmonella.

Storage, lots and expiry

Storage and shelf life

Keep oat beta-glucan in sealed, lined bags or drums in a cool, dry place away from strong odors. Bran concentrates contain oat fat that can turn rancid with heat and air, so they have shorter shelf lives than purified extracts. Suppliers set a best-before or retest date for unopened packaging.

Lots and expiry dates

Beta-glucan percentage and molecular weight vary with oat variety, crop year and process, so check both on every COA if you dose by beta-glucan grams. Record the gluten result and the oat origin for each lot. Rotate bran concentrates first-expiring-first because of the fat content.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Oat beta-glucan suppliers

Manufacturers and distributors whose own websites say they sell it.

We are checking oat beta-glucan suppliers now

Every listing is checked against the supplier’s own website before it goes live, so this list fills in over the coming weeks. The specs and COA checklist above are ready today.

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Frequently asked questions

What forms of oat beta-glucan can brands buy?

Common forms include oat bran concentrate, purified oat beta-glucan extract, high vs. low molecular weight grades, gluten-free oat grades and organic. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for oat beta-glucan include?

Expect beta-glucan content, molecular weight or viscosity, moisture, protein, fat and ash, gluten, heavy metals and microbiology, each with its method, specification and result for that lot.

How should oat beta-glucan be stored?

Keep oat beta-glucan in sealed, lined bags or drums in a cool, dry place away from strong odors. Bran concentrates contain oat fat that can turn rancid with heat and air, so they have shorter shelf lives than purified extracts. Suppliers set a best-before or retest date for unopened packaging.

What is the regulatory status of oat beta-glucan?

GRN 544, for beta-glucans from oat bran notified by Tate and Lyle for general use in foods at levels consistent with good manufacturing practice, closed on May 5, 2015 with FDA having no questions. GRN 437, for beta-glucans from oat bran notified by Garuda International as a source of fiber in listed foods, closed on Jan 27, 2013 with FDA having no questions. FDA lists beta-glucan soluble fiber, as described in 21 CFR 101.81(c)(2)(ii)(A), among the isolated or synthetic non-digestible carbohydrates that meet its dietary fiber definition for Nutrition and Supplement Facts labels. Health Canada's beta-glucan natural health product monograph lists oat beta-glucan with Avena sativa seed bran as the source material.

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