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Cumin

Thì là Ai Cập

Cuminum cyminum

Apiaceae · Quả (hạt) · Fruits (seeds) · Steam-distilled

Botanical illustration of Cuminum cyminum; fruit (seeds) used to extract Cumin essential oil
Cumin essential oil, extracted from the fruit (seeds) of Cuminum cyminum. Botanical illustration, Lê Mai Library.

Safety

Phototoxic · Moderate

Moderately phototoxic.

Dermal contraindication: if applied above maximum use level, skin must not be exposed to sunlight or UV for 12 hours.

Maximum dermal use level 0.4 percent.

GRAS status.

Cumin oil increased glutathione S-transferase activity in the stomach, liver and esophagus of mice by over 78 percent, significantly inhibiting B[a]P-induced squamous cell stomach carcinoma.


Usage guidelines

Maximum dermal level
0.4 percent
After dermal use
Avoid sun/UV for 12 hours
GRAS
Yes

Chemistry

Volatile constituents
Cuminaldehyde19.8 – 40.0 %
γ-Terpinene11.2 – 32.0 %
β-Pinene4.4 – 17.7 %
p-Cymene5.9 – 17.5 %
p-Mentha-1,3-dien-7-al3.2 – 7.2 %
p-Mentha-1,4-dien-7-al2.1 – 8.6 %
β-Myrcene + α-Phellandrene0.5 – 7.3 %
p-Menth-3-en-7-al0.5 – 2.5 %
Cuminyl alcohol0.2 – 2.2 %
α-Pinene0.2 – 1.2 %

Botanical source

Cuminum cyminum is an annual herb of the eastern Mediterranean. Cumin seed is an essential spice in Middle Eastern, Indian and Mexican cuisines.

The oil is steam-distilled from the seeds. Produced in Egypt, Iran, India, Syria.

Family Apiaceae. Cumin oil is phototoxic, unusual for a seed oil; the risk must be noted.


Quality

May be adulterated with synthetic cuminaldehyde.