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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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- 2012 No. 231
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- E 141 (ii) COPPER...
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Changes over time for: E 141 (ii) COPPER COMPLEXES OF CHLOROPHYLLINS
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There are currently no known outstanding effects for the Commission Regulation (EU) No 231/2012, E 141 (ii) COPPER COMPLEXES OF CHLOROPHYLLINS.
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E 141 (ii) COPPER COMPLEXES OF CHLOROPHYLLINSU.K.
| Synonyms | Sodium Copper Chlorophyllin; Potassium Copper Chlorophyllin; CI Natural Green 5 | |
| Definition | The alkali salts of copper chlorophyllins are obtained by the addition of copper to the product obtained by the saponification of a solvent extraction of strains of edible plant material, grass, lucerne, and nettle; the saponification removes the methyl and phytol ester groups and may partially cleave the cyclopentenyl ring. After addition of copper to the purified chlorophyllins, the acid groups are neutralised to form the salts of potassium and/or sodium. Only the following solvents may be used for the extraction: acetone, methyl ethyl ketone, dichloromethane, carbon dioxide methanol, ethanol, propan-2-ol and hexane. | |
| Colour Index No | 75815 | |
| Einecs | ||
| Chemical name | The major colouring principles in their acid forms are 3-(10-Carboxylato-4-ethyl-1,3,5,8-tetramethyl-9-oxo-2-vinylphorbin-7-yl)propionate, copper complex (Copper chlorophyllin a) and 3-(10-Carboxylato-4-ethyl-3-formyl-1,5,8-trimethyl-9-oxo-2-vinylphorbin-7-yl) propionate, copper complex (Copper chlorophyllin b) | |
| Chemical formula | Copper chlorophyllin a (acid form): C34H32Cu N4O5 Copper chlorophyllin b (acid form): C34H30Cu N4O6 | |
| Molecular weight | Copper chlorophyllin a: 640,20 Copper chlorophyllin b: 654,18 Each may be increased by 18 daltons if the cyclopentenyl ring is cleaved. | |
| Assay | Content of total copper chlorophyllins is not less than 95 % of the sample dried at 100 °C for 1 h. | |
| Description | Dark green to blue/black powder | |
| Identification | ||
|---|---|---|
| Spectrometry | Maximum in aqueous phosphate buffer at pH 7,5 at ca. 405 nm and at 630 nm | |
| Purity | ||
| Solvent residues | Acetone | Not more than 50 mg/kg, singly or in combination |
| Methyl ethyl ketone | ||
| Methanol | ||
| Ethanol | ||
| Propan-2-ol | ||
| Hexane | ||
| Dichloromethane: | not more than 10 mg/kg | |
| Arsenic | Not more than 3 mg/kg | |
| Lead | Not more than 5 mg/kg | |
| Mercury | Not more than 1 mg/kg | |
| Cadmium | Not more than 1 mg/kg | |
| Copper ions | Not more than 200 mg/kg | |
| Total copper | Not more than 8,0 % of the total copper chlorophyllins | |
Aluminium lakes of this colour may be used.U.K.
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