Major components were ar-turmerone (21.0–30.3%), ˛-turmerone (26.5–33.5%) and ˇ-turmerone (18.9–21.1%).
Trolox equivalent antioxidant capacity (TEAC) values were 38.9, 68.0 and 66.9 M at 1 mg of oil/ml for
fresh, dried and cured rhizome respectively in ABTS assay