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Partially hydrolyzed guar gum

Partially hydrolyzed guar gum suppliers and sourcing guide

Partially hydrolyzed guar gum is guar gum, the galactomannan from guar seed endosperm, that has been broken into shorter chains with a beta-mannanase enzyme. The hydrolysis cuts the molecular weight so the powder dissolves into a thin, nearly clear solution instead of a thick gel. It is then purified, dried and sold as a white to off-white soluble fiber powder for drinks, foods and supplements.

See suppliersWhat to ask for on the COA
Category
Fibers
Also known as
PHGG · hydrolyzed guar gum · guar fiber · Cyamopsis tetragonoloba
Facts checked
November 2026

Forms and grades of partially hydrolyzed guar gum

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

  • Standard PHGG powder

    Enzyme-hydrolyzed, typically 75 to 85% dietary fiber; low viscosity, nearly tasteless in water.

  • Agglomerated or instant grades

    Granulated for faster dispersion in drinks and stick packs.

  • Organic

    From organic guar beans with organic processing, under organic certification.

  • Low-FODMAP certified grades

    Grades tested and certified by a third-party low-FODMAP program, for products making that claim.

What to check on the COA

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

Dietary fiber
Total dietary fiber by AOAC 2009.01 or 2011.25, which capture the lower-molecular-weight galactomannan.
Viscosity
Viscosity of a standard solution, which confirms the degree of hydrolysis and separates PHGG from regular guar gum.
Molecular weight
Average molecular weight by size-exclusion chromatography, where the supplier specifies it.
Moisture, ash and protein
Proximate checks on purification.
Pesticide residues
Multi-residue screen, since guar is a field crop.
Microbiology
Total plate count, yeast and mold, coliforms or Enterobacteriaceae, E. coli and Salmonella.

Storage, lots and expiry

Storage and shelf life

Keep PHGG in sealed, moisture-barrier bags or drums in a cool, dry place; it is hygroscopic and cakes if left open. Suppliers set a best-before or retest date for unopened packaging.

Lots and expiry dates

Viscosity and fiber content can drift between lots with the degree of hydrolysis, so record both from each COA and check solubility in your product. Record the guar origin, usually India or Pakistan.

Regulatory status

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

  • In 1995 FDA announced that Sandoz Nutrition Corp. had filed petition GRASP 5G0414 proposing to affirm partially hydrolyzed guar gum as GRAS as an ingredient in human food.

    Source: govinfo.gov (opens in a new tab)

  • FDA's notice of that filing states that filing a petition is not a preliminary indication that the substance is suitable for GRAS affirmation.

    Source: govinfo.gov (opens in a new tab)

  • 21 CFR 184.1339 affirms guar gum, the starting material for PHGG, as GRAS for listed uses and defines it as obtained from the seed of Cyamopsis tetragonoloba or Cyamopsis psoraloides; the section does not address hydrolyzed guar gum.

    Source: ecfr.gov (opens in a new tab)

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.

Partially hydrolyzed guar gum suppliers

Manufacturers and distributors whose own websites say they sell it.

We are checking partially hydrolyzed guar gum 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.

Sell partially hydrolyzed guar gum? Request a listing

Frequently asked questions

What forms of partially hydrolyzed guar gum can brands buy?

Common forms include standard PHGG powder, agglomerated or instant grades, organic and low-FODMAP certified grades. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for partially hydrolyzed guar gum include?

Expect dietary fiber, viscosity, molecular weight, moisture, ash and protein, pesticide residues and microbiology, each with its method, specification and result for that lot.

How should partially hydrolyzed guar gum be stored?

Keep PHGG in sealed, moisture-barrier bags or drums in a cool, dry place; it is hygroscopic and cakes if left open. Suppliers set a best-before or retest date for unopened packaging.

What is the regulatory status of partially hydrolyzed guar gum?

In 1995 FDA announced that Sandoz Nutrition Corp. had filed petition GRASP 5G0414 proposing to affirm partially hydrolyzed guar gum as GRAS as an ingredient in human food. FDA's notice of that filing states that filing a petition is not a preliminary indication that the substance is suitable for GRAS affirmation. 21 CFR 184.1339 affirms guar gum, the starting material for PHGG, as GRAS for listed uses and defines it as obtained from the seed of Cyamopsis tetragonoloba or Cyamopsis psoraloides; the section does not address hydrolyzed guar gum.

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