A surprising amount of “pomegranate extract” on the market is the wrong material for the claim attached to it. The confusion comes down to one thing: which part of the fruit was extracted. Peel and fruit yield chemically different powders — different colours, different actives and very different ellagic-acid content. This article shows how to tell them apart and how to keep substitution out of your supply chain.
Two Materials, One Name
Both of these are sold as “pomegranate extract”:
- Peel / pericarp (hull) extract — rich in ellagitannins (punicalagins) and ellagic acid. This is the material standardised to 40% ellagic acid and the one most of the published research relates to.
- Fruit / juice / aril powder — rich in anthocyanins, the red-purple pigments, plus sugars and organic acids. It is comparatively low in ellagic acid and punicalagins.
Neither is fraudulent on its own — both are legitimate ingredients. The problem is when a fruit/juice powder is sold against a peel-extract specification, or when the two are blended to hit a polyphenol number while falling short on ellagic acid by HPLC.
The Colour Tell
The fastest first-pass check is colour. Genuine pomegranate peel extract standardised to 40% ellagic acid is tan, light-brown, yellowish-brown or greyish-brown. The ellagitannins and ellagic acid that define it are not red pigments.
Red flag — literally: a deep-red, pink or burgundy “40% ellagic acid” powder is almost certainly an anthocyanin-rich fruit or juice material, not a peel extract. Colour is not a substitute for an HPLC assay, but a red powder claiming high ellagic acid should trigger immediate questions.
This is exactly why the colour of a product photo matters in B2B: an attractive red powder may look more “pomegranate” to a layperson, but to an informed buyer it signals the wrong chemistry for an ellagic-acid claim.
Peel vs Fruit at a Glance
| Attribute | Peel / Pericarp Extract | Fruit / Juice Powder |
|---|---|---|
| Dominant actives | Punicalagins, ellagic acid | Anthocyanins, sugars |
| Ellagic acid (HPLC) | High (e.g. 40%) | Low |
| Typical colour | Tan to brown | Red to purple |
| Research relevance | Most ellagitannin studies | Limited for ellagic acid |
| Best use | Nutraceutical / cosmetic actives | Colour, flavour, food |
How to Keep Substitution Out
Three controls keep the wrong material out of your supply:
- Specify the plant part on the PO and CoA — “Punica granatum peel/pericarp extract, 40% ellagic acid by HPLC.” A spec with no plant part is unenforceable.
- Require the assay method — ellagic acid by HPLC, not a broad polyphenol number that fruit powders can also reach. See ellagic acid HPLC vs UV testing.
- Use colour and HPLC fingerprint as a receiving check — confirm the powder is tan-brown and that the chromatogram shows the expected ellagitannin/ellagic-acid profile, not an anthocyanin signature.
For the constituent chemistry behind these differences, see ellagic acid & punicalagins: benefits, and for the complete sourcing checklist, the pomegranate extract buyer's guide.
Want Verified Pomegranate Peel Extract?
Punica granatum peel · 40% ellagic acid by HPLC · tan-brown, HPLC-fingerprinted · batch-specific CoA