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Combava fruit

Chanh Thái (quả)

Citrus hystrix

Kaffir lime, Leech-lime, Makrut lime, Mauritius papeda, Swangi

Rutaceae · Vỏ quả · Fruit peel · Steam-distilled

Botanical illustration of Citrus hystrix; fruit peel used to extract Combava fruit essential oil
Combava fruit essential oil, extracted from the fruit peel of Citrus hystrix. Botanical illustration, Lê Mai Library.

Safety

No specific contraindications in available data.

Likely not hazardous in pregnancy based on β-pinene, sabinene and (+)-limonene data.

As steam-distilled (not cold-pressed), contains no furocoumarins and is non-phototoxic.

The (+)-limonene content is unusually low for a citrus peel oil.


Usage guidelines

Phototoxic Photosensitivity
No (steam-distilled)

Chemistry

Volatile constituents
β-Pinene25.9 – 31.5 %
Sabinene15.6 – 20.4 %
Citronellal0.4 – 16.8 %
(+)-Limonene5.3 – 13.8 %
Terpinen-4-ol0.4 – 3.8 %
Citronellol2.9 %
α-Pinene2.0 – 2.6 %
α-Terpineol1.7 – 2.1 %
Linalool1.8 – 1.9 %

Botanical source

Citrus hystrix is a tropical Southeast Asian citrus with small fruit and characteristically knobbly peel. The Vietnamese names 'chanh thai' or 'chanh san' reflect its use in Thai and Indonesian cuisine.

The oil is steam-distilled from the peel in Madagascar, Réunion and some Southeast Asian countries.

Family Rutaceae. Limited availability.