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|Product Name||E 100 CURCUMIN|
|Synonyms||CI Natural Yellow 3 , Turmeric Yellow, Diferoyl Methane|
|Definition||Curcumin is obtained by solvent extraction of turmeric i.e. the ground rhizomes of natural strains of Curcuma longa L. In order to obtain a concentrated curcumin powder, the extract is purified by crystallization . The product consists essentially of curcumins; i.e. the colouring principle ( l,7-bis(4-hydroxy-3-methoxyphenyl)hepta-l,6-dien-3,5-dione) and its two desmethoxy derivatives in varying proportions. Minor amounts of oils and resins naturally occuring in turmeric may be present. Only the following solvents may be used in the extraction: ethylacetate, acetone, carbon dioxide, dichloromethane, n-butanol, methanol , ethanol, hexane .|
|Colour Index No||75300|
|Molecular weight||I.368,39 II.338,39 III.308,39|
|A. Spectrometry||Maximum in ethanol at ca 426 nm|
|B. Melting Range||179—182 °C|
|Description||Orange-yellow crystalline powder|
|Parameters||Limits (COMMISSION DIRECTIVES 95 /45/EC)|
|Assay||Content not less than 90 % total colouring matters|
|E 1% 1cm 1 607 at ca 426 nm in ethanol|
|Heavy Metals (As Pb)||NMT 40ppm|
|Ethylacetate||Not more than 50 mg/kg, singly or in combination|
|Dichloromethane||not more than 10 mg/kg|
|Residual Pesticides||Complying with EC No.396/2005|
|Genetic Modification Status||GMO Free|
|Country of Origin||China PR|
|Cultivated or wild crafted||Cultivated|
|Storage Condition||Store in tight, light-resistant containers, and avoid exposure to direct sunlight and excessive heat.|
|Shelf Life||24 months if properly stored|
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