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Xylanase

Xylanase suppliers and sourcing guide

Xylanase is an enzyme that breaks down xylan, a hemicellulose found in cereal and other plant cell walls. It is made by fermenting molds such as Trichoderma reesei or Aspergillus niger, or bacteria such as Bacillus subtilis, then filtering out the organism and concentrating the enzyme. It is used mainly in baking and brewing, and as a powder in supplement enzyme blends.

Category
Enzymes
Also known as
Endo-1,4-β-xylanase · EC 3.2.1.8 · Pentosanase
Facts checked
November 2026

Forms and grades of xylanase

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

  • Baking grade powder

    Xylanase on a flour or starch carrier, dosed in parts per million of flour for dough handling and volume.

  • Liquid concentrate

    Stabilized liquid for brewing, distilling and cereal processing.

  • Supplement grade powder

    Xylanase standardized in xylanase units (XU) per gram on maltodextrin for capsules and blends.

  • Hemicellulase blends

    Mixtures with other hemicellulases, cellulase or beta-glucanase sold as one product.

What to check on the COA

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

Xylanase activity
Activity by a stated method (often birchwood or oat-spelt xylan substrate measuring reducing sugars) in units per gram; methods vary widely between suppliers.
Production strain
Source organism, genetic modification status and absence of viable production organism.
Production strain and antibiotic activity
Absence of the production organism and of antibiotic activity in the finished preparation, as FCC asks for microbial enzymes; ask for a statement of the strain and whether it is genetically modified.
Heavy metals
Lead (and often arsenic, cadmium and mercury) by ICP-MS, reported against FCC enzyme-preparation limits or the supplier's specification.
Microbiology
Total plate count, coliforms, E. coli and Salmonella, reported against the Food Chemicals Codex (FCC) general limits for enzyme preparations or the supplier's tighter specification.
Loss on drying
Moisture for powders by loss on drying; enzyme activity holds up better in dry product, so moisture above spec is a warning sign for activity loss in storage.

Storage, lots and expiry

Storage and shelf life

Enzyme powders lose activity with heat and moisture, so keep them sealed in the original lined container in a cool, dry place, and refrigerate liquid preparations if the supplier says to. Shelf life is set by each supplier's specification, usually as a guaranteed minimum activity to a stated date, and older stock is retested for activity before use. Supplier safety data sheets for enzyme powders call for dust control and respiratory protection when weighing and blending.

Lots and expiry dates

Because xylanase units are method-specific, record the activity, unit and method for each lot and do not switch suppliers on unit value alone. Note the production organism and carrier, and rotate stock first-expired, first-out.

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.

Xylanase suppliers

Manufacturers and distributors whose own websites say they sell it.

  • AB Enzymes

    Manufacturer · Darmstadt, Germany

    German enzyme company, part of ABF Ingredients, that develops and produces enzymes for baking, juice, brewing, protein hydrolysis and oil processing.

    • FSSC 22000
    • Halal
    • ISO 9001
    • Kosher
  • BIO-CAT

    Manufacturer · Troy, VA

    Virginia-based enzyme and Bacillus probiotic company that formulates and blends ingredients for supplement, food and animal nutrition brands. Its news page says it has joined the Lallemand group.

    • Certified organic
    • FSSC 22000
    • SQF
    • cGMP
    • Kosher
    • Halal

Suppliers are in alphabetical order and none pays to appear. Each claim is checked against the supplier’s own website on the date shown. Ask for the specification sheet and a recent COA before you order, and confirm details with the supplier.

Frequently asked questions

What forms of xylanase can brands buy?

Common forms include baking grade powder, liquid concentrate, supplement grade powder and hemicellulase blends. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for xylanase include?

Expect xylanase activity, production strain, production strain and antibiotic activity, heavy metals, microbiology and loss on drying, each with its method, specification and result for that lot.

How should xylanase be stored?

Enzyme powders lose activity with heat and moisture, so keep them sealed in the original lined container in a cool, dry place, and refrigerate liquid preparations if the supplier says to. Shelf life is set by each supplier's specification, usually as a guaranteed minimum activity to a stated date, and older stock is retested for activity before use. Supplier safety data sheets for enzyme powders call for dust control and respiratory protection when weighing and blending.

What is the regulatory status of xylanase?

FDA's GRAS Notice Inventory lists GRN 567, for xylanase from Trichoderma reesei notified by Danisco USA as a processing aid in brewing, potable alcohol, cereal beverage and bakery uses; FDA had no questions. FDA's GRAS Notice Inventory lists GRN 589, for xylanase from Aspergillus niger notified by DSM Food Specialties for brewing and baking; FDA had no questions. Health Canada's List of Permitted Food Enzymes includes xylanase (item X.1), with sources including Aspergillus, Bacillus and Trichoderma strains. Health Canada's Digestive Enzymes natural health product monograph lists xylanase with Trichoderma longibrachiatum and Trichoderma reesei as source material.

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