If you work in nutraceuticals or natural colors, you already know the category is booming. To be honest, spec sheets don’t tell the whole story. After visiting processors and grilling QA teams over coffee (and sometimes, spreadsheets), here’s a practical look at Pure Turmeric Extract—specs that matter, where it shines, and how vendors compare in the real world.
Curcumin—the star bioactive from Curcuma longa—sits at the crossroads of clean-label color (E100) and functional ingredients. We’re seeing strong growth in gummies, RTD wellness shots, plant-protein blends, and bright bakery glazes. Brands want standardized actives but also stable color and low staining. Not easy, but possible.
Materials: dried Curcuma longa rhizomes, typically sourced from vetted farms; food-grade ethanol/water extraction. Methods vary by plant, but the usual: solvent extraction → concentration → purification (sometimes crystallization/column steps) → drying (spray or vacuum) → milling (≈80–120 mesh) → blending → QC release.
Testing standards: HPLC assay for total curcuminoids; residual solvents per USP <467>; heavy metals by ICP-MS (AOAC/ISO) and limits aligned with USP/EP; pesticide screens to EU 396/2005; micro per USP <61> & <62> or ISO 4833/21527; color value for E100 as needed. Shelf life: around 24–36 months in cool, dry, light-protected packaging (real-world use may vary).
| Item | Spec (≈) |
| Curcuminoids (HPLC) | 95.0% min (batch data often 95.2–96.5%) |
| Appearance | Orange-yellow crystalline powder |
| Moisture | ≤5.0% |
| Heavy metals (Pb/As/Cd/Hg) | Pb ≤2 ppm; As ≤1 ppm; Cd ≤1 ppm; Hg ≤0.1 ppm |
| Residual solvents | Meets USP <467> (ethanol typically <3000 ppm) |
| Microbiology | TPC ≤1000 CFU/g; Yeast/Mold ≤100 CFU/g; E. coli/Salmonella: absent |
| Particle size | 80–120 mesh options |
| Carriers | Neat or with ≤5% maltodextrin (custom) |
Example batch (QA sheet on file): Total curcuminoids 95.6% (HPLC), moisture 2.9%, Pb 0.6 ppm, ethanol 820 ppm, TPC 320 CFU/g.
| Vendor | Standardization | Certifications | Lead time | Notes |
| Hongri Spice (Hebei, China; No. 268 Xianghe St., Xingtai 054001) | 95% HPLC; 10–50% food-grade; water-dispersible | ISO 22000, HACCP, GMP, Kosher/Halal (docs on request) | ≈10–15 days ex-works | Good color strength; steady QA comms, in my experience |
| Trader A | 95% only | GMP claim, limited COAs | ≈20–30 days | Lower price index; variable documents |
| Contract Extractor B | 95% + phospholipid complex | FSSC 22000, pharma-GMP line | ≈25–40 days | Premium bioavailability, premium pricing |
Advantages buyers call out: consistent HPLC results, dependable color intensity, and responsive QC teams. Many customers say the water-dispersible grade simplifies clear drinks—surprisingly less sediment than expected.
Functional gummy brand (EU): switched to a water-dispersible 20% grade; reduced mixing time by ~18% and staining on equipment. Micro passes aligned with ISO 21527.
Sports nutrition (US): moved to 95% HPLC with piperine premix; label audit went smoother thanks to USP <467> residuals and full ICP-MS metals panel on COA.
Expect COA with HPLC chromatograms, MSDS, allergen and GMO statements, Kosher/Halal certificates, and food-safety certificates (ISO 22000/HACCP). For color applications, request E100 documentation and migration data if relevant.
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