Psyllium husk
Purity grade
Purity, extraneous matter, swelling volume, moisture and microbiology.
Isabgol & guar gum testing
We test psyllium husk, psyllium powder and guar gum for purity, swelling and viscosity, microbiology, pesticide residues and contaminants, supporting exporters in Gujarat and Rajasthan.
Psyllium and guar gum testing
Isabgol and guar gum testing is the laboratory analysis of psyllium husk and guar gum for purity, physical properties such as swelling and viscosity, microbiology and contaminants, to show they meet buyer, pharmacopoeia and export requirements.
India is the world's leading producer of psyllium (isabgol), with Gujarat a major growing and processing centre, and guar gum is processed across Gujarat and Rajasthan for food, pharmaceutical and industrial use. Both are exported widely and buyers set strict purity and safety specifications.
Accurate Universal Laboratories Pvt. Ltd. tests psyllium seed, husk and powder and guar gum for quality, microbiology, pesticide residues and contaminants such as ethylene oxide and pentachlorophenol.

Shipping psyllium or guar soon?
Test before the container is sealed, not after a rejection at the port.
Why testing matters
Psyllium and guar gum are sold on purity and functional quality, and buyers in food and pharmaceutical markets reject lots with high microbial counts or contaminants.

Testing parameters
These are the tests buyers most often specify for psyllium and guar gum.
| Test | Why it is needed |
|---|---|
| Purity and extraneous matter | Light and heavy extraneous matter determine husk grade |
| Swelling volume | Key functional quality of psyllium |
| Viscosity | Key functional quality and grade of guar gum |
| Moisture, ash and acid-insoluble ash | Quality and adulteration indicators |
| Microbiology | TPC, yeast and mould, E. coli and Salmonella for food and pharma use |
| Pesticide residues | Residue limits in export markets |
| Ethylene oxide | Fumigant residues have caused EU recalls |
| Pentachlorophenol (PCP) | EU requires analysis for PCP in guar gum from India |
Get a quote for psyllium or guar testing
Share the product, lot size and destination. We'll confirm the tests and send an itemised quotation.
Products we test
Both products are tested on purity, function and safety.
Purity grade
Purity, extraneous matter, swelling volume, moisture and microbiology.
Fine and industrial grades
Swelling, particle quality, microbiology and contaminants.
Raw material
Moisture, purity and residues before processing.
Food and industrial grades
Viscosity, moisture, microbiology, PCP and residues.
How it works
Tell us the product, purpose and market. We recommend the right tests and send a quotation.
Courier a sealed sample to our Ahmedabad or Rajkot laboratory, or book a sample pickup.
Physical, chemical, microbiological and residue tests are carried out with quality controls.
Results compared with your buyer's specification or the applicable limit.
Our team explains the results and advises on next steps if a value is out of limit.
Industries we serve
We test for processors, exporters and the industries that use these products.
Not sure what your buyer needs?
Send us the buyer's specification or destination and we'll build the test plan.
FAQs
Most buyers ask for purity and extraneous matter, swelling volume, moisture and ash, microbiology including Salmonella and E. coli, and pesticide residues. Some also require ethylene oxide testing.
Yes. Viscosity is the key functional property of guar gum and is tested along with moisture, microbiology and contaminants.
After contamination was found in guar gum from India in 2007, the EU introduced special import conditions requiring analytical reports for pentachlorophenol (PCP) and dioxins. Tell us your buyer's requirement and we will confirm the tests.
Tell us the pharmacopoeia or buyer specification you need and we will confirm which parameters and methods we can provide.
The cost depends on the tests required. Share your product and buyer specification and we will send an itemised quotation.
Yes. Our Ahmedabad laboratory is accredited by NABL to ISO/IEC 17025:2017 (certificate TC-5021) and our Rajkot laboratory under certificate TC-7988. The tests and products covered are listed in our scope of accreditation, and we confirm whether your parameters are within scope before testing.
Still have a question about psyllium or guar testing?
Talk to our export testing team about limits, sampling or a failed result.
Related services
Get a quotation
Tell us the product, grade and buyer specification. We'll reply with the right tests and an itemised quotation.
Standards and regulatory references
Standards and limits change; we confirm the current requirements for your product and market at the time of testing.