Saffron is the most valuable spice on earth by weight, and its extract is among the easiest ingredients to buy badly. Because only the stigma carries the actives and because adulteration is rampant, the specification you write — and the analytical proof you demand — matters more here than for almost any other botanical. This guide covers how to specify safranal and crocin grade, what a genuine Certificate of Analysis must show, and how to avoid the quality traps.
What Is Saffron Extract?
Saffron extract is a concentrated, standardised preparation made from the dried stigma of Crocus sativus L. — the same red thread used as the culinary spice. Each saffron flower produces only three stigmas, hand-harvested and dried, which is why concentrated extracts are a practical way to deliver saffron's actives at a controlled, repeatable specification rather than relying on whole-spice variability.
The characteristic constituents are the water-soluble carotenoid crocin (and its aglycone crocetin), the bitter glycoside picrocrocin, and the volatile safranal that carries saffron's aroma. A serious commercial extract is standardised to at least two of these — safranal and crocin — because a single marker or a colour reading alone is easy to fake.
How to Specify Grade: Safranal and Crocin
The two specification lines that define a saffron extract are its safranal content and its crocin content, both measured by HPLC. SV Botanica's standard cosmetic-grade extract is standardised to Safranal not less than 0.5% w/w and Crocin not less than 2.0% w/w. Crocin governs colour value; safranal governs aroma and is the harder marker to hit consistently.
Buyer tip: Insist that both markers, with their percentages and the method (HPLC), appear on the CoA itself — not just in a sales email. A "saffron extract" quoted only on colour (a spectrophotometric absorbance figure) tells you nothing about safranal and is the classic profile of a diluted or synthetically boosted product. For the analytical detail behind the two markers, see our guide to safranal, crocin and how saffron extract is standardised by HPLC.
Why the Stigma Matters
Only the stigma of Crocus sativus carries the full active profile. Extracts or powders that quietly include the yellow style (the stalk below the stigma), safflower petals, or other plant material are cheaper to produce and visually similar, but analytically hollow. A stigma-only declaration, backed by an HPLC identity profile that matches reference material across all major peaks, is your first line of defence. We cover the mechanics of this in saffron adulteration and authenticity.
What a Genuine Saffron Extract CoA Must Show
Saffron's price and its reputation for adulteration mean the Certificate of Analysis carries unusual weight. A complete, trustworthy CoA should include every line below. These are the specification limits SV Botanica supplies against document SVB/QC/PS/CS/001.
| Parameter | Specification / Limit | Method |
|---|---|---|
| Identification | HPLC profile to comply with reference material (all major peaks) | By HPLC |
| Safranal | NLT 0.5% w/w | By HPLC |
| Crocin | NLT 2.0% w/w | By HPLC |
| Loss on drying | NMT 8.0% | USP <731> |
| Particle size (#40 mesh) | NLT 95.0% w/w | USP <786> |
| Lead / Arsenic / Cadmium / Mercury | NMT 5.0 / 2.0 / 0.5 / 0.2 ppm | ICP-MS / ICP-OES |
| Residual solvents | Comply with USP limits | USP <467> |
| Microbiology (TAMC / Y&M / pathogens) | NMT 5,000 / NMT 100 / negative | USP <2021>/<2022> |
| Shelf life | 36 months from manufacture | — |
The heavy-metal and residual-solvent blocks deserve particular scrutiny for a solvent-extracted botanical of high value. A CoA that states only "complies" without a method and per-element limits is not adequate.
Why Source Saffron Extract from India?
India is both a saffron-growing country and a mature, export-oriented herbal-extract manufacturing base. Sourcing directly from Indian manufacturers brings real advantages: proximity to raw stigma material with traceability, standardisation and HPLC analytical capability built for export markets, competitive direct-from-manufacturer pricing, and full documentation packages — CoA, MSDS, and declarations covering cultivation, irradiation and GMO status — issued per batch.
What to Ask Your Supplier
When evaluating saffron extract suppliers for commercial supply, request the following as a minimum:
- Batch-specific CoA stating safranal % and crocin %, each by HPLC
- HPLC identity profile confirming compliance with reference material
- Stigma-only declaration and country of origin
- Heavy-metal report by ICP-MS/ICP-OES with numeric limits for Pb, As, Cd, Hg
- Residual-solvent data to USP <467>
- Full microbiological panel
- Declarations: cultivated, non-irradiated, GMO-free
Our companion saffron extract supplier evaluation guide turns this into a scored checklist. SV Botanica supplies water-soluble saffron stigma extract standardised to safranal 0.5% and crocin 2.0% from certified manufacturing facilities in India, with full documentation available before any bulk commitment and samples for qualified buyers.
Source Standardised Saffron Extract from India
Safranal 0.5% · Crocin 2.0% by HPLC · water-soluble · CoA-backed · samples for qualified buyers