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Commission Regulation (EU) No 231/2012Show full title

Commission Regulation (EU) No 231/2012 of 9 March 2012 laying down specifications for food additives listed in Annexes II and III to Regulation (EC) No 1333/2008 of the European Parliament and of the Council (Text with EEA relevance)

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There are currently no known outstanding effects for the Commission Regulation (EU) No 231/2012, E 100 CURCUMIN . Help about Changes to Legislation

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E 100 CURCUMIN U.K.

SynonymsCI Natural Yellow 3; Turmeric Yellow; Diferoyl Methane
Definition

Curcumin is obtained by solvent extraction of turmeric i.e. the ground rhizomes of 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 (1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-dien-3,5-dione) and its two desmethoxy derivatives in varying proportions. Minor amounts of oils and resins naturally occurring in turmeric may be present.

Curcumin is also used as the aluminium lake; the aluminium content is less than 30 %.

Only the following solvents may be used in the extraction: ethylacetate, acetone, carbon dioxide, dichloromethane, n-butanol, methanol, ethanol, hexane, propan-2-ol.

Colour Index No75300
Einecs207-280-5
Chemical name
I

1,7-Bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dione

II

1-(4-Hydroxyphenyl)-7-(4-hydroxy-3-methoxy-phenyl-)hepta-1,6-diene-3,5-dione

III

1,7-Bis(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione

Chemical formula
I

C21H20O6

II

C20H18O5

III

C19H16O4

Molecular weight
I.368,39
II.338,39
III.308,39
Assay

Content not less than 90 % total colouring matters

1 607 at ca. 426 nm in ethanol

DescriptionOrange-yellow crystalline powder
Identification
SpectrometryMaximum in ethanol at ca. 426 nm
Melting range179 °C-182 °C
Purity
Solvent residuesEthylacetateNot more than 50 mg/kg, singly or in combination
Acetone
n-butanol
Methanol
Ethanol
Hexane
Propan-2-ol
Dichloromethane: not more than 10 mg/kg
ArsenicNot more than 3 mg/kg
LeadNot more than 10 mg/kg
MercuryNot more than 1 mg/kg
CadmiumNot more than 1 mg/kg

Aluminium lakes of this colour may be used. U.K.

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