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Curcumin is a bright yellow chemical produced by some plants.


Curcumin is a bright yellow chemical produced by some plants. It is the principal curcuminoid of turmeric (Curcuma longa), a member of the ginger family, Zingiberaceae. It is sold as an herbal supplement, cosmetics ingredient, food flavoring, and food coloring. Chemically, curcumin is a diarylheptanoid, belonging to the group of curcuminoids, which are natural phenols responsible for turmeric's yellow color.

Botanical name Curcuma longa Part used Root
Description Specification Test result Method
Appearance Yellow-Orange Complies Visual
Odor Characteristic Complies Organoleptic
Taste Characteristic Complies Organoleptic
Particle Size 60 NLT 95% through 60 mesh Complies USP38
Chemical Test
Method HPLC
IR Spectrum Sample is concordant with standard
Solubility Soluble in ethanol acetone and glacial acetic acid Complies USP38
Assay Curcuminoids≥95.0% 95.36% HPLC (USP38)
Curcumin 70-85% 71.40%
Demethoxycurcumin 15-25% 19.10%
Bisdemethoxycurcumin 2-6% 4.86%
Loss on Drying ≤2.0% 0.50% GB/T5009.3-2016
The total ash ≤1.0% 0.40% GB/T5009.4-2016/5.3.3
Solvent residue  5000ppm 3000ppm USP38
Tap Density g/ml 0.5-0.9 0.65 GB/T21354-2008
Bulk Density g/ml 0.3-0.5 0.45 GB/20316.2-2006
Heavy Metals ≤10ppm < 5ppm GB/T5009.74-2003
As ≤3ppm 0.12ppm GB/T5009.11-2003
Pb ≤2ppm 0.13ppm GB/T5009.12-2010
Cd ≤1ppm 0.2ppm GB/T5009.15-2003
Hg ≤0.5ppm 0.1ppm GB/T5009.17-2003
TPC < 1000 cfu/g 920 Authorized Lab
Yeast&Mold < 100 cfu/g 50 Authorized Lab
E.Coli None Not Detected Authorized Lab
Staphylococcus aureus None Not Detected Authorized Lab
Salmonella None Not Detected Authorized Lab
Packing 20kg/Drum Shelf    Life 2 Years 
Storage Keep in cool,dry place, avoid direct sunlight
Remark NON-Irradiated

Functions and Applications

1.The most common applications are as an ingredient in dietary supplement, in cosmetics, and as flavoring for foods, such as turmeric-flavored beverages in the Indian Subcontinent and Southeast Asia.    
2.As a food additive for gold-orange coloring in turmeric and prepared foods, its E number is E100.    

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