Curcumin % is a primary quality signal for Lakadong turmeric. Premium buyers often seek lab-verified curcumin above typical commodity ranges, while balancing aroma (volatile oils), colour, cleanliness, and traceability.
What curcumin tells a buyer
Potency: Higher curcumin supports nutraceutical and premium spice applications.
Pricing: Lots with verified higher % typically command premiums.
Consistency: Batch-to-batch variation is mitigated through nursery control and curing SOPs.
Testing & documentation
- Accredited labs: Use NABL/ISO-accredited methods; retain CoA with batch IDs.
- Residues & moisture: Meet applicable MRLs; target cured moisture ~5–8%.
- Traceability: Maintain origin docs and curing logs.
From nursery to curing
Quality starts with clean planting material and controlled early growth, followed by careful boiling, drying, polishing, grading, and hygienic packing to maintain colour and volatile oils.
Buyer checklist
- CoA indicating curcumin %, moisture, and residues.
- Lot traceability & harvest/curing dates.
- Packaging suitable for transport and storage (moisture barrier).