Curcumin is the compound that gives turmeric its colour. For buyers in the spice, food, pharmaceutical and nutraceutical industries, curcumin percentage is a key specification when comparing grades.
Typical ranges by variety
Erode turmeric offers 2.5 – 4.5%, Salem approximately 4.75%, Nizamabad 2 – 3.5%, Alleppey 4 – 6%, and Lakadong from Meghalaya 7 – 7.8%. Actual values depend on the grade and batch, so always confirm them with a lab report.
What to ask your supplier
Request the HPLC curcumin range, heavy metal report, moisture and foreign material limits, and a sample before confirming a bulk order.
