Three Disqualifying Red Flags

  1. A saponin percentage with no method stated. As covered in our standardisation guide, a fenugreek saponin figure is uninterpretable without its method. A supplier whose standard CoA omits it either does not understand the limitation or does not want you thinking about it.
  2. No HPLC capability for any fenugreek-specific marker. If they cannot report protodioscin, trigonelline or 4-hydroxyisoleucine, they cannot detect cross-botanical spiking in their own incoming material — which means they may pass it to you in complete good faith.
  3. No allergen documentation. Fenugreek is a legume with reported cross-reactivity to peanut and chickpea. A supplier who has never been asked to declare this has never supplied a customer doing a proper allergen assessment.

The one-question filter: "Can you report 4-hydroxyisoleucine by HPLC on the batch CoA?" It is fenugreek's most specific marker, essentially unique to the seed. A supplier who says yes has chromatography and knows their material. A supplier who asks what that is has told you everything you need to know, in one exchange, for free.

The Scoring Framework

Weighted to 100 points. Score before seeing price. Analytical capability carries more weight here than in a generic botanical assessment, because the standard assay is weaker here than in a generic botanical.

1. Analytical Capability and Method Transparency — 30 points

CriterionPoints
4-Hydroxyisoleucine reportable by HPLC9
Saponin assay method named on every CoA, with reference standard identified7
Protodioscin reportable by HPLC6
TLC identity against authentic reference extract4
Trigonelline reportable by HPLC2
Protein (Kjeldahl) reported — catches defatted seed flour2

2. Documentation and Anti-Dilution Controls — 20 points

CriterionPoints
Batch-specific CoA, not a generic specification sheet6
Full allergen declaration supplied as standard, not on request5
Acid-insoluble ash and residual solvent lines present4
Carriers and excipients declared by name and percentage3
Assay stated on dry, carrier-free basis2

3. Grade Capability and Sensory Support — 15 points

CriterionPoints
De-bittered grade genuinely available (not "we can look into it")5
Will supply standard and de-bittered samples side by side4
4-Hydroxyisoleucine and galactomannan grades available3
Galactomannan quoted with a viscosity specification, not just fibre %3

The viscosity line matters more than its three points imply. A supplier quoting a fibre grade purely on percentage has not thought about what the customer actually needs it to do.

4. Compliance and Testing Readiness — 20 points

CriterionPoints
Heavy metals by ICP-MS with numeric per-element limits5
Aflatoxin testing by HPLC-FLD4
Full USP microbiological panel including pathogens4
EU pesticide MRL screening with a real report4
Non-ETO declaration with LC-MS/MS testing available3

Aflatoxin is weighted deliberately. Fenugreek is a seed stored in bulk in a warm climate before processing — precisely the conditions under which aflatoxin risk is real rather than theoretical.

5. Consistency and Commercial Terms — 15 points

CriterionPoints
Three consecutive batch CoAs showing assay consistency5
Origin and harvest season stated; batch traceable to raw-material lot3
Incoterms quoted properly to your named destination3
Written payment terms on a proforma invoice2
Technical questions answered by someone who understands the chemistry2

Interpreting the Score

ScoreReading
85–100Qualified for bulk supply. Proceed to sample and pre-shipment verification.
70–84Workable with conditions. Close the gaps in writing before first bulk order.
55–69Trial quantities only, with independent HPLC verification on every lot.
Below 55Not a supplier for a regulated market.

Apply a floor on section 1: below 15 of the available 30, decline regardless of total. A supplier without chromatographic capability cannot control the specific risk this botanical carries, and no amount of certification compensates.

The Sample Stage — Add a Sensory Step

Fenugreek is the one botanical in this category where sensory evaluation belongs in supplier qualification, not just in product development.

First-Order Protocol

  1. Nominate an independent laboratory — Eurofins, SGS or Intertek — for pre-shipment sampling. Specify HPLC markers in the scope. An independent UV saponin result alone reproduces the same blind spot you are trying to close.
  2. Compare line by line, and check the relationship between saponins and the HPLC anchor. A disproportion there is the spiking signature.
  3. Remember that a saponin discrepancy between two laboratories may be method difference rather than material difference. Ask both for their method before concluding anything.
  4. Retain a sealed, dated sample for the shelf life of the material.
  5. Re-verify at batch three, then annually, and always on a change of harvest season or manufacturing site.

SV Botanica supplies bulk fenugreek extract from certified facilities in India with the assay method stated on every certificate, HPLC reporting of protodioscin, trigonelline and 4-hydroxyisoleucine on request, protein and acid-insoluble ash as standard, and a full allergen declaration with every batch. Buyer-nominated third-party pre-shipment testing is welcome. See the product page, the buyer's guide, or adulteration and authenticity.