Dry, peppery citrus with a resinous undertow — closer to kaffir lime than to lemon, but wilder. The peel smells like cracking open an unripe fruit in humid jungle air.
First impression: sharp, zesty peel — recognisably citrus but rougher than lemon, with a green bitterness similar to of unripe grapefruit rind. Within minutes, a dry peppery quality emerges (beta-caryophyllene), giving the note a spiciness absent from bergamot or yuzu. The citral component (geranial) reads as a lemongrass-like sharpness that sits on top of the pepper. After an hour, what remains is a faint, warm, woody-resinous trace — the sesquiterpene backbone — rather than the clean fade-to-nothing of standard citrus oils.
Evolution over time
Immediately
Immediately
Sharp, bitter citrus peel — greener and rougher than lemon, with an immediate peppery bite from beta-caryophyllene.
After a few hours
After a few hours
The citrus brightness fades; a dry, woody-spicy warmth remains, closer to black pepper and dry wood than to any citrus reference.
After a few days
After a few days
Faint resinous trace on blotter. Most volatile citrus components have evaporated; only the sesquiterpene residue persists as a ghost of warm wood.
Terroir & Expressions
Indicative 2025 wholesale prices.
The Full Story
Citrus macroptera is not a lemon. The common name misleads. It belongs to the papeda subgroup — the same rough, thick-skinned branch of Citrus that includes kaffir lime (C. hystrix). The peel oil is dominated by limonene (55%), but the resemblance to standard lemon ends there: beta-caryophyllene (4.7%) pushes the scent toward black pepper and dry wood, while geranial (3.5%) adds a sharp, almost verbena-like citral brightness. The overall effect is a citrus note with real body — less transparent than bergamot, less sweet than mandarin, less clean than lemon.
Origin and Terroir
The species was first described by Father Montrouzier on the island of Art, off the northwest coast of New Caledonia. Its epithet — macroptera, from Greek makros (large) and pteron (wing) — refers to the broad, wing-like expansions on the leaf petioles. The wild form (var. macroptera) is native to Melanesia and Island Southeast Asia. A cultivated variety (var. annamensis) is grown extensively in the Sylhet Division of northeastern Bangladesh and across the Barak Valley in Assam, India, where it is known as shatkora or hatkhora. In NE Indian states — Mizoram, Meghalaya, Tripura — wild populations persist but are classified as endangered.
In Perfumery
The peel oil is obtained by cold expression. It functions as a top note with moderate tenacity — longer-lasting than lemon oil due to the sesquiterpene fraction (beta-caryophyllene, germacrene D), but still volatile. Its peppery-resinous character makes it a natural bridge between citrus openings and spicy or woody hearts. The oil remains rare in Western perfumery. Most supply is absorbed by the Sylheti culinary market, where the thick rind is cooked into beef and fish curries.
Leaf Oil Distinction
The leaf oil has an entirely different composition: beta-pinene (33.3%), alpha-pinene (25.3%), p-cymene (17.6%), with negligible limonene (2.4%). This makes the leaf oil piney and terpenic rather than citrus — a separate material altogether, closer to juniper than to any citrus expression.
This note in Première Peau. Gravitas Capitale · Nuit Elastique · Rose Monotone. Sample all seven extraits in the Discovery Set.
In the Sylhet region of Bangladesh, households sun-dry sliced shatkora rind to preserve it year-round for cooking. The thick, fragrant peel is the prized part — the pulp is almost always discarded because it is too bitter and dry to eat. This is the opposite of most citrus fruits, where the juice matters and the peel is waste.
Extraction & Chemistry
Extraction method: Cold expression (mechanical pressing) of the fresh fruit peel. Hydrodistillation is used for research-grade oil and for the leaf oil, which yields an entirely different chemical profile. Peel oil yield is approximately 0.53% by weight of fresh peel (Njoroge et al., 2012). No CO2 or solvent-extracted absolute is commercially available. The leaf oil, obtained by hydrodistillation, is dominated by pinenes rather than limonene and constitutes a separate raw material.
Top note with unusual staying power for a citrus material, owing to its sesquiterpene content (beta-caryophyllene, germacrene D). Functions primarily as a modifier and bridge note: it opens with recognisable citrus freshness but carries enough spicy-resinous character to connect with woody or amber hearts without the typical citrus gap. In a hesperidic composition, it adds roughness and terroir — a wild, unpolished alternative to bergamot or lemon. In spicy ambers, it can reinforce pepper and cardamom accords from the top. The beta-caryophyllene content also makes it a natural partner for pink pepper, elemi, or frankincense. Not common in mainstream perfumery due to limited commercial supply; most production stays within the Sylheti food market. Could theoretically be reconstructed using a blend of limonene, beta-caryophyllene, geranial, and alpha-terpineol, though the full complexity of the natural oil — with its 47+ identified components — resists simple approximation.
