Pelletierine — Punicine (Pomegranate Root Bark Piperidine Alkaloid · Anthelmintic · Historical)
| Compound | Pelletierine (Punicine; α-Pelletierine) |
| Chemical class | Alkaloid — Piperidine (2-Propionylpiperidine; pomegranate root bark alkaloid) |
| CAS | 4396-01-4 |
| Primary source | Punica granatum (pomegranate root bark, stem bark); not present in fruit or peel |
| Key applications | Anthelmintic (tapeworm expulsion); antifungal; insecticidal; availability on request |
| Claim strength | Moderate (anthelmintic traditional/preclinical); Emerging (antifungal) |
| Typical form | Pomegranate root bark extract; pelletierine tannate (historical anthelmintic formulation); not in pomegranate fruit extract |
| Buy from Herbuno | Request availability and bulk pricing → |
Name origin: Named after Pierre-Joseph Pelletier (the French chemist who isolated strychnine, quinine, caffeine, and many other alkaloids in the early 19th century) — the same Pelletier appears repeatedly in botanical alkaloid history. Pelletierine was isolated from pomegranate root bark by Tanret and Valser in 1878. It is a simple piperidine alkaloid — 2-propionylpiperidine — present specifically in the root and stem bark of pomegranate (Punica granatum), not in the fruit, peel, or seeds. This is a critical distinction: standard pomegranate fruit extract (the commercially available product) does not contain pelletierine; only root bark preparations do. Traditional use: Pomegranate root bark preparations have been used as anthelmintic (parasite-expelling) agents since antiquity — Dioscorides (1st century CE) recommended pomegranate rind decoction for parasites; Ayurvedic medicine uses pomegranate root bark (Dadimamula) for intestinal worms (specifically tapeworms). Pelletierine is considered the primary active for anthelmintic activity. Mechanism: Pelletierine acts as a neuromuscular paralysant in helminths — causing flaccid paralysis of tapeworm musculature, enabling expulsion by purging. The mechanism is similar to nicotine at helminth nAChRs — pelletierine is a piperidine alkaloid structurally related to nicotine. Regulatory/safety note: At doses required for anthelmintic effect, pelletierine causes dizziness, nausea, and at higher doses diplopia and muscular weakness in humans — a narrow therapeutic margin. It has been replaced by safer, more specific anthelmintics (praziquantel, albendazole). Commercial source: Not currently in the Herbuno catalogue. Standard Herbuno pomegranate products are fruit-derived. Contact Herbuno for root bark extract availability and pelletierine quantification.
Evidence for Pelletierine Applications
Anthelmintic — tapeworm expulsion (traditional/historical): Pelletierine tannate was the primary pharmaceutical anthelmintic for tapeworm (Taenia species) from approximately 1880–1950, before safe specific anthelmintics became available. Clinical efficacy was confirmed in medical literature of this era. It is now replaced by praziquantel (99% efficacy, excellent safety profile). Traditional Ayurvedic and Unani pomegranate root bark use for intestinal parasites aligns with this mechanism. Claim strength: Moderate (historical clinical; largely supplanted by safer agents).
Antifungal activity: Pelletierine demonstrates antifungal activity against Candida albicans and Aspergillus species at MIC values of 16–64 μg/mL in vitro. Mechanism appears to involve membrane disruption similar to other piperidine alkaloids. Claim strength: Emerging (in vitro).
Insecticidal properties: Pelletierine’s nicotinic-like mechanism at insect nAChRs gives it insecticidal activity — historically relevant to its role in whole pomegranate plant defence. This activity is of botanical insecticide research interest. Claim strength: Emerging.
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Dosage & Formulator Specification
Not a supplement ingredient. Historical anthelmintic dose: pelletierine tannate 400–800 mg single dose (delivering ~200–400 mg pelletierine) followed by a saline purge. This dose caused significant side effects (nausea, dizziness) in many patients. For any formulation interest in root bark anthelmintic activity: a dedicated pomegranate root bark extract is required — NOT standard pomegranate fruit or peel extract. Pelletierine content must be quantified by HPLC. Given the availability of far superior modern anthelmintics, formulation of pelletierine-containing preparations for anthelmintic use is not currently commercially rational. The botanical interest is primarily ethnopharmacological and research-historical.
Frequently Asked Questions — Pelletierine
Is pelletierine present in commercial pomegranate extract?
No — this is a critical point for formulators. Commercial pomegranate extract (fruit peel, seed extract, whole fruit) does not contain pelletierine. Pelletierine is specifically located in the root bark and stem bark of the pomegranate tree. Commercial pomegranate products are standardised to ellagic acid, punicalagins, punicic acid (from seeds), or anthocyanins — none of which are related to pelletierine. The anthelmintic activity associated with pomegranate in traditional medicine specifically requires root bark preparations.
Why was pelletierine replaced by praziquantel for tapeworm treatment?
Praziquantel (introduced 1975) achieves >99% efficacy against tapeworm in a single oral dose with minimal side effects — it works by causing calcium influx and tegument disruption in the worm at doses well-tolerated by the host. Pelletierine’s therapeutic/toxic margin was narrow: the dose needed for anthelmintic efficacy caused dizziness, nausea, and weakness in many patients. The availability of a safe, highly effective single-dose treatment made the tolerability challenges of pelletierine unacceptable.
Can pomegranate fruit extract substitute for root bark for anthelmintic use?
No — pomegranate fruit extract has different phytochemistry (polyphenols, ellagitannins) and no established anthelmintic activity. The anthelmintic activity is specifically from pelletierine in the root bark. The two preparations should not be conflated. Formulators should not make anthelmintic claims for pomegranate fruit or peel extracts based on traditional root bark data.
What is the biosynthetic origin of pelletierine?
Pelletierine is biosynthesised from lysine (via cadaverine, a diamine from lysine decarboxylation) — the same biosynthetic pathway as other piperidine alkaloids (lobeline, coniine). This lysine-derived piperidine pathway contrasts with the ornithine-derived pyrrolidine/tropane pathway that produces nicotine, atropine, and cocaine. The shared biosynthetic origin of pelletierine with lobeline and coniine reflects their structural similarities (all are 2-substituted piperidines).
Related compounds: Lobeline, Coniine, Anabasine, Piperine
Claim-strength scale – High = multiple human RCTs; Moderate = limited trials or strong preclinical convergence; Emerging = early-stage lab or animal data.
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