ターメリック
Nghệ vàng (củ)
Curcuma longa
Curcuma
Low skin sensitization risk.
Can stain skin and fabric yellow-orange. High concentrations cause staining.
Avoid large oral doses in pregnancy.
Curcumin (the characteristic yellow pigment) is NOT in the distilled essential oil, curcumin is only in powder and CO2 extract.
| α-Turmerone | 25.0 – 40.0 % |
| β-Turmerone | 15.0 – 25.0 % |
| ar-Turmerone | 10.0 – 20.0 % |
| α-Zingiberene | 5.0 – 12.0 % |
Curcuma longa rhizome is dried, ground turmeric root. The essential oil is distilled from the rhizomes.
Main production: India (world's largest), Indonesia, China, Vietnam.
In Vietnam, turmeric is a foundational seasoning, bun bo Hue, Vietnamese curry, food coloring.
Family Zingiberaceae, same family as ginger.
Turmerones have in vitro anti-inflammatory and anticancer activity. Different from curcumin (only in powder, not in oil).
In cosmetics, turmeric oil is used at low concentrations for anti-inflammatory products. Caution with staining required.