Standardized saffron extract: what dual standardization means

What a standardized saffron extract is, why Saffrion 42™ sets separate minimums for crocins and safranal, and what to ask any saffron extract supplier.

Advanced Nutraceuticals3 min read

Two flasks of golden saffron extract solution beside a dish of saffron threads in a laboratory

Saffron is one of the most closely graded botanicals in the world. As a spice, it is sorted by colouring strength, bitterness and aroma. An extract made for dietary supplements needs something more precise: a specification that tells a formulator how much of the compounds that matter is in every gram.

That is what standardization does. Saffrion 42™ goes a step further and is standardized to two markers at once.

One marker is not enough

Saffron’s character comes from two very different groups of compounds.

Crocins are water-soluble carotenoid pigments that carry sugar groups. They give saffron its colour.

Safranal is a volatile compound of the monoterpene family. It gives saffron its characteristic aroma.

Because they are chemically so different, the amount of one tells you little about the amount of the other. An extract standardized only to crocins could be low in safranal, and the reverse is also true. Setting a minimum for each closes that gap.

Two minimums, one specification

The Saffrion 42™ specification sets a separate minimum content for each marker:

Marker Minimum in specification
Total crocins ≥ 3.0% w/w
Safranal ≥ 1.2% w/w
Both markers combined ≥ 4.2%

Each minimum is monitored on its own. That is the basis for checking consistency from batch to batch, rather than relying on a single combined figure that could hide a shortfall in one marker.

A third control: the trans:cis ratio

Crocins occur as trans and cis forms. The specification also requires a crocin ratio of at least 85 parts trans to 15 parts cis, so the profile of the crocin fraction is controlled as well as its total.

What a batch looks like

Specifications are minimums, and real batches are measured against them. For batch 25032305, the reported marker content was:

Marker Specification minimum Batch 25032305
Crocins 3.0% 4.205%
Safranal 1.2% 1.325%
Total of both markers 4.2% 5.530%

The batch crocin value is reported as the sum of crocin derivatives by UPLC for batch 25032305 (ZHS251110), as summarized by Alkemist Labs. Quantification scope and peak identification are documented in the original laboratory report and chromatograms, which are available on request. The marker total represents the reported batch.

How the markers are measured

Both markers are quantified by chromatographic marker analysis, which separates the individual compounds before measuring them. A chromatographic fingerprint of the extract is part of the documentation set, alongside the technical data sheet (v1.1), the manufacturer specification and the batch laboratory report.

What it means for your label

Because the minimums are defined, the arithmetic for a serving is simple. The suggested use is 30 mg per capsule, once daily. Calculated from the specification minimums, a 30 mg serving provides at least:

  • 0.90 mg of crocins (30 mg × 3.0%)
  • 0.36 mg of safranal (30 mg × 1.2%)

These are floor values calculated from the specification, not averages. Actual batches, like the one above, can sit higher.

Questions to ask any saffron extract supplier

If you are comparing saffron ingredients, these questions help you compare like with like:

  1. Which markers is the extract standardized to, and what is the minimum for each?
  2. How are the markers measured, and by which method?
  3. Is there batch data you can review against the specification?
  4. Is the trans:cis crocin ratio controlled?
  5. Which documents come with each lot?

For Saffrion 42™, the answers are in the specification and the documentation listed above. Request the documents and our team will send what you need.


Professional content for product development, for B2B use only. Consumer claims for finished products are subject to the regulatory requirements of each target market.

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