Food & beverage
Gels, jellies and noodles.
Ingredients / Hydrocolloids / Konjac Gum
Hydrocolloids, thickeners & emulsifiers
Konjac Gum (E 425(i))
Konjac gum for U.S. manufacturers, from vetted producers. FCC / USP grade on request. Download the sample spec sheet, then send us your grade and quantity.
TRACED · CERTIFIED · RELIABLE · TRANSPARENT · TESTED
Key facts
| CAS No. | 37220-17-0 |
|---|---|
| E-number (EU) | E 425(i) |
| Molecular weight | The main component, glucomannan, has an average molecular weight of 200 000 to 2 000 000 |
| Description | A white to cream to light tan powder |
| Solubility | Dispersible in hot or cold water forming a highly viscous solution with a pH between 4,0 and 7,0 |
| Grades | EU Reg. 231/2012 (E 425(i)) sample spec · FCC / USP available on request for U.S. food/pharma use |
| Origin | Confirmed in every offer; stated per lot on the COA |
| Storage, shelf life, packaging | Per the producer's specification, on request |
What konjac gum is
Konjac gum is a water-soluble hydrocolloid obtained from the Konjac flour by aqueous extraction. Konjac flour is the unpurified raw product from the root of the perennial plant Amorphophallus konjac. A white to cream to light tan powder. Dispersible in hot or cold water forming a highly viscous solution with a pH between 4,0 and 7,0. (Source: EU Regulation 231/2012, E 425(i).)
Applications by industry
Sample specification
Values from EU Regulation 231/2012 (E 425(i)), consolidated text of 18.08.2026. Actual values depend on the producer; the producer's specification and the COA for your lot are available on request.
| Assay | Not less than 75 % carbohydrate |
|---|---|
| Loss on drying | Not more than 12 % (105 °C, 5 hours) |
| Starch | Not more than 3 % |
| Protein | Not more than 3 % (factor N × 5,7) |
| Viscosity (1 % solution) | Not less than 3 kgm^– 1s^– 1 at 25 °C |
| Ether-soluble material | Not more than 0,1 % |
| Total ash | Not more than 5,0 % (800 °C, 3 to 4 hours) |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
Download the full spec sheet (PDF)
Documents and sourcing
Droplet promise. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Data sheet, SDS and COA on request. Every delivery ships with a COA linked to the delivered lot.
Questions buyers ask
What is konjac gum used for?
Typical uses by industry. Food & beverage: Gels, jellies and noodles. Suitability for your product and market is confirmed with the producer's specification.
Which grades can McBoeck supply?
Food grade to EU Regulation 231/2012 (E 425(i)). FCC / USP grade is available on request for U.S. food and pharma use. Particle size and other grade details follow the producer's specification, on request.
Which documents come with konjac gum?
Every delivery ships with a COA linked to the delivered lot. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request.
What does the sample spec sheet show?
Limits for assay, loss on drying, starch, protein, viscosity (1 % solution), ether-soluble material, total ash, arsenic and lead, taken from EU Regulation 231/2012. Actual values depend on the producer; the producer's specification and the lot COA are available on request.
How do I get a quote?
Send us the grade, quantity and delivery location through the quote form or at [email protected]. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Related hydrocolloids
AgarAlginic AcidCarrageenanDistilled Monoglycerides, DMGAll hydrocolloids
Need konjac gum?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.