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 crystallisation. 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 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. |
Class |
Dicinnamoylmethane |
Colour Index No |
75300 |
Einecs |
207-280-5 |
Chemical names |
I1,7-Bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dioneII1-(4-Hydroxyphenyl)-7-(4-hydroxy-3-methoxy-phenyl-)hepta-1,6-diene-3,5-dioneIII1,7-Bis(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione |
Chemical formula |
IC21H20O6IIC20H18O5IIIC19H16O4 |
Molecular weight |
-
I.368,39
-
II.338,39
-
III.308,39
|
Assay |
Content not less than 90 % total colouring mattersE1 cm1 % 1607 at ca 426 nm in ethanol |
Description |
Orange-yellow crystalline powder |
Identification
A.Spectrometry |
Maximum in ethanol at ca 426 nm |
B.Melting Range |
179 °C-182 °C |
Purity
Solvent residues |
EthylacetateAcetonen-butanolMethanolEthanolHexane |
Not more than 50 mg/kg, singly or in combination |
Dichloromethane: not more than 10 mg/kg |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 101 (ii) RIBOFLAVIN-5′-PHOSPHATE
Synonyms |
Riboflavin-5′-phosphate sodium |
Definition |
These specifications apply to riboflavin 5′-phosphate together with minor amounts of free riboflavin and riboflavin diphosphate |
Class |
Isoalloxazine |
Einecs |
204-988-6 |
Chemical names |
Monosodium(2R,3R,4S)-5-(3′)10′-dihydro-7′,8′-dimethyl-2′,4′-dioxo-10′-benzo[γ]pteridinyl)-2,3,4-trihydroxypentyl phosphate;monosodium salt of 5′-monophosphate ester of riboflavin |
Chemical formula |
For the dihydrate formC17H20N4NaO9P·2H2O
For the anhydrous formC17H20N4NaO9P |
Molecular weight |
541,36 |
Assay |
Content not less than 95 % total colouring matters calculated as C17H20N4NaO9P·2H2OE1 cm1 % 250 at ca 375 nm in aqueous solution |
Description |
Yellow to orange crystalline hygroscopic powder, with slight odour and a bitter taste |
Identification
A.Spectrometry |
The ratio A375/A267 is between 0,30 and 0,34The ratio A444/A267 is between 0,35 and 0,40 |
in aqueous solution |
Maximum in water at ca 444 nm |
B.Specific rotation |
[α]D20 between + 38° and + 42° in a 5 molar HCl solution |
Purity
Loss on drying |
Not more than 8 % (100 °C, 5 hrs in vacuum over P2O5) for the dihydrate form |
Sulfated ash |
Not more than 25 % |
Inorganic phosphate |
Not more than 1,0 % (calculated as PO4 on the anhydrous basis) |
Subsidiary colouring matters |
Riboflavin (free)Not more than 6 %
Riboflavine diphosphateNot more than 6 % |
Primary aromatic amines |
Not more than 70 mg/kg (calculated as aniline) |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 104 QUINOLINE YELLOW
Synonyms |
CI Food Yellow 13 |
Definition |
Quinoline Yellow is prepared by sulfonating 2-(2-quinolyl) indan-1,3-dione. Quinoline Yellow consists essentially of sodium salts of a mixture of disulfonates (principally), monosulfonates and trisulfonates of the above compound and subsidiary colouring matters together with sodium chloride and/or sodium sulfate as the principal uncoloured components.Quinoline Yellow is described as the sodium salt. The calcium and the potassium salt are also permitted. |
Class |
Chinophthalone |
Colour Index No |
47005 |
Einecs |
305-897-5 |
Chemical name |
The disodium salts of the disulfonates of 2-(2-quinolyl) indan-1,3-dione (principal component) |
Chemical formula |
C18H9N Na2O8S2 (principal component) |
Molecular weight |
477,38 (principal component) |
Assay |
Content not less than 70 % total colouring matters calculated as the sodium saltQuinoline Yellow shall have the following composition:Of the total colouring matters present:-
not less than 80 % shall be disodium 2-(2-quinolyl) indan-1,3-dione-disulfonates
- not more than 15 % shall be sodium 2-(2-quinolyl) indan-1,3-dione-monosulfonates
- not more than 7,0 % shall be trisodium 2-(2-quinolyl) indan-1,3-dione-trisulfonate
E1 cm1 % 865 (principal component) at ca 411 nm in aqueous acetic acid solution |
Description |
Yellow powder or granules |
Identification
A.Spectrometry |
Maximum in aqueous acetic acid solution of pH 5 at ca 411 nm |
B.Yellow solution in water |
|
Purity
Water insoluble matter |
Not more than 0,2 % |
Subsidiary colouring matters |
Not more than 4,0 % |
Organic compounds other than colouring matters: |
|
-
2-methylquinoline
- 2-methylquinoline-sulfonic acid
- Phthalic acid
- 2,6-dimethyl quinoline
- 2,6-dimethyl quinoline sulfonic acid
|
Total not more than 0,5 % |
2-(2-quinolyl)indan-1,3-dione |
Not more than 4 mg/kg |
Unsulfonated primary aromatic amines |
Not more than 0,01 % (calculated as aniline) |
Ether extractable matter |
Not more than 0,2 % under neutral conditions |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 120 COCHINEAL, CARMINIC ACID, CARMINES
Definition |
Carmines and carminic acid are obtained from aqueous, aqueous alcoholic or alcoholic extracts from Cochineal, which consists of the dried bodies of the female insect Dactylopius coccus Costa.The colouring principle is carminic acid.Aluminium lakes of carminic acid (carmines) can be formed in which aluminium and carminic acid are thought to be present in the molar ratio 1:2.In commercial products the colouring principle is present in association with ammonium, calcium, potassium or sodium cations, singly or in combination, and these cations may also be present in excess.Commercial products may also contain proteinaceous material derived from the source insect, and may also contain free carminate or a small residue of unbound aluminium cations. |
Class |
Anthraquinone |
Colour Index No |
75470 |
Einecs |
Cochineal: 215-680-6; carminic acid: 215-023-3; carmines: 215-724-4 |
Chemical names |
7-β-D-glucopyranosyl-3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxoanthracene-2-carboxylic acid (carminic acid); carmine is the hydrated aluminium chelate of this acid |
Chemical formula |
C22H20O13 (carminic acid) |
Molecular weight |
492,39 (carminic acid) |
Assay |
Content not less than 2,0 % carminic acid in the extracts containing carminic acid; not less than 50 % carminic acid in the chelates. |
Description |
Red to dark red, friable, solid or powder. Cochineal extract is generally a dark red liquid but can also be dried as a powder. |
Identification
Spectrometry |
Maximum in aqueous ammonia solution at ca 518 nmMaximum in dilute hydrochloric solution at ca 494 nm for carminic acid |
Purity
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 131 PATENT BLUE V
Synonyms |
CI Food Blue 5 |
Definition |
Patent Blue V consists essentially of the calcium or sodium compound of [4-(α-(4-diethylaminophenyl)-5-hydroxy-2,4-disulfophenyl-methylidene)2,5-cyclohexadien-1-ylidene] diethylammonium hydroxide inner salt and subsidiary colouring matters together with sodium chloride and/or sodium sulfate and/or calcium sulfate as the principal uncoloured components.The potassium salt is also permitted. |
Class |
Triarylmethane |
Colour Index No |
42051 |
Einecs |
222-573-8 |
Chemical names |
The calcium or sodium compound of [4-(α-(4-diethylaminophenyl)-5-hydroxy-2,4-disulfophenyl-methylidene) 2,5-cyclohexadien-1-ylidene] diethyl-ammonium hydroxide inner salt |
Chemical formula |
Calcium compound: C27H31N2O7S2CaSodium compound: C27H31N2O7S2Na |
Molecular weight |
Calcium compound: 579,72Sodium compound: 582,67 |
Assay |
Content not less than 85 % total colouring matters, calculated as the sodium saltE1 cm1 % 2000 at ca 638 nm in aqueous solution at pH 5 |
Description |
Dark-blue powder or granules |
Identification
A.Spectrometry |
Maximum in water at 638 nm at pH 5 |
B.Blue solution in water |
|
Purity
Water insoluble matter |
Not more than 0,2 % |
Subsidiary colouring matters |
Not more than 2,0 % |
Organic compounds other than colouring matters: |
|
-
3-hydroxy benzaldehyde
- 3-hydroxy benzoic acid
- 3-hydroxy-4-sulfobenzoic acid
- N,N-diethylamino benzene sulfonic acid
|
Total not more than 0,5 % |
Leuco base |
Not more than 4,0 % |
Unsulfonated primary aromatic amines |
Not more than 0,01 % (calculated as aniline) |
Ether extractable matter |
From a solution of pH 5 not more than 0,2 % |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 132 INDIGOTINE, INDIGO CARMINE
Synonyms |
CI Food Blue 1 |
Definition |
Indigotine consists essentially of a mixture of disodium 3,3′dioxo-2,2′-bi-indolylidene-5,5′-disulfonate, and disodium 3,3′-dioxo-2,2′-bi-indolylidene-5,7′-disulfonate and subsidiary colouring matters together with sodium chloride and/or sodium sulfate as the principal uncoloured components.Indigotine is described as the sodium salt. The calcium and the potassium salt are also permitted. |
Class |
Indigoid |
Colour Index No |
73015 |
Einecs |
212-728-8 |
Chemical names |
Disodium 3,3′-dioxo-2,2′-bi-indolylidene-5,5′-disulfonate |
Chemical formula |
C16H8N2Na2O8S2 |
Molecular weight |
466,36 |
Assay |
Content not less than 85 % total colouring matters, calculated as the sodium salt;disodium 3,3′-dioxo-2,2′-bi-indolylidene-5,7′-disulfonate: not more than 18 %E1 cm1 % 480 at ca 610 nm in aqueous solution |
Description |
Dark-blue powder or granules |
Identification
A.Spectrometry |
Maximum in water at ca 610 nm |
B.Blue solution in water |
|
Purity
Water insoluble matter |
Not more than 0,2 % |
Subsidiary colouring matters |
Excluding disodium 3,3′-dioxo-2,2′-bi-indolylidene-5,7′-disulfonate: not more than 1,0 % |
Organic compounds other than colouring matters: |
|
-
Isatin-5-sulfonic acid
- 5-sulfoanthranilic acid
- Anthranilic acid
|
Total not more than 0,5 % |
Unsulfonated primary aromatic amines |
Not more than 0,01 % (calculated as aniline) |
Ether extractable matter |
Not more than 0,2 % under neutral conditions |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 140 (i) CHLOROPHYLLS
Synonyms |
CI Natural Green 3, Magnesium Chlorophyll, Magnesium Phaeophytin |
Definition |
Chlorophylls are obtained by solvent extraction of natural strains of edible plant material, grass, lucerne and nettle. During the subsequent removal of solvent, the naturally present co-ordinated magnesium may be wholly or partly removed from the chlorophylls to give the corresponding phaeophytins. The principal colouring matters are the phaeophytins and magnesium chlorophylls. The extracted product, from which the solvent has been removed, contains other pigments such as carotenoids as well as oils, fats and waxes derived from the source material. Only the following solvents may be used for the extraction: acetone, methyl ethyl ketone, dichloromethane, carbon dioxide, methanol, ethanol, propan-2-ol and hexane. |
Class |
Porphyrin |
Colour Index No |
75810 |
Einecs |
Chlorophylls: 215-800-7, chlorophyll a: 207-536-6, Chlorophyll b: 208-272-4 |
Chemical names |
The major colouring principles are:-
Phytyl (132R,17S,18S)-3-(8-ethyl-132-methoxycarbonyl-2,7,12,18-tetramethyl-13′-oxo-3-vinyl-131-132-17,18-tetrahydrocyclopenta [at]-porphyrin-17-yl)propionate, (Pheophytin a), or as the magnesium complex (Chlorophyll a)
- Phytyl (132R,17S,18S)-3-(8-ethyl-7-formyl-132-methoxycarbonyl-2,12,18-trimethyl-13′-oxo-3-vinyl-131-132-17,18-tetrahydrocyclopenta[at]-porphyrin-17-yl)propionate, (Pheophytin b), or as the magnesium complex (Chlorophyll b)
|
Chemical formula |
Chlorophyll a (magnesium complex): C55H72MgN4O5Chlorophyll a: C55H74N4O5Chlorophyll b (magnesium complex): C55H70MgN4O6Chlorophyll b: C55H72N4O6 |
Molecular weight |
Chlorophyll a (magnesium complex): 893,51Chlorophyll a: 871,22Chlorophyll b (magnesium complex): 907,49Chlorophyll b: 885,20 |
Assay |
Content of total combined Chlorophylls and their magnesium complexes is not less than 10 %E1 cm1 % 700 at ca 409 nm in chloroform |
Description |
Waxy solid ranging in colour from olive green to dark green depending on the content of co-ordinated magnesium |
Identification
Spectrometry |
Maximum in chloroform at ca 409 nm |
Purity
Solvent residues |
AcetoneMethyl Ethyl ketoneMethanolEthanolPropan-2-olHexane |
Not more than 50 mg/kg, singly or in combination |
Dichloromethane: Not more than 10 mg/kg |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 140 (ii) CHLOROPHYLLINS
Synonyms |
CI Natural Green 5, Sodium Chlorophyllin, Potassium Chlorophyllin |
Definition |
The alkali salts of chlorophyllins are obtained by the saponification of a solvent extract of natural 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. The acid groups are neutralized 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. |
Class |
Porphyrin |
Colour Index No |
75815 |
Einecs |
287-483-3 |
Chemical names |
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 (chlorophyllin a)and
- 3-(10-carboxylato-4-ethyl-3-formyl-1,5,8-trimethyl-9-oxo-2-vinylphorbin-7-yl)propionate (chlorophyllin b)
Depending on the degree of hydrolysis the cyclopentenyl ring may be cleaved with the resultant production of a third carboxyl function.Magnesium complexes may also be present. |
Chemical formula |
Chlorophyllin a (acid form): C34H34N4O5Chlorophyllin b (acid form): C34H32N4O6 |
Molecular weight |
Chlorophyllin a: 578,68Chlorophyllin b: 592,66Each may be increased by 18 daltons if the cyclopentenyl ring is cleaved. |
Assay |
Content of total chlorophyllins is not less than 95 % of the sample dried at ca 100 °C for 1 hour.E1 cm1 % 700 at ca 405 nm in aqueous solution at pH 9E1 cm1 % 140 at ca 653 nm in aqueous solution at pH 9 |
Description |
Dark green to blue/black powder |
Identification
Spectrometry |
Maximum in aqueous phosphate buffer at pH 9 at ca 405 nm and at ca 653 nm |
Purity
Solvent residues |
AcetoneMethyl ethyl ketoneMethanolEthanolPropan-2-olHexane |
Not more than 50 mg/kg, singly or in combination |
Dichloromethane: not more than 10 mg/kg |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 141 (i) COPPER COMPLEXES OF CHLOROPHYLLS
Synonyms |
CI Natural Green 3, Copper Chlorophyll, Copper Phaeophytin |
Definition |
Copper chlorophylls are obtained by addition of a salt of copper to the substance obtained by solvent extraction of natural strains of edible plant material, grass, lucerne, and nettle. The product, from which the solvent has been removed, contains other pigments such as carotenoids as well as fats and waxes derived from the source material. The principal colouring matters are the copper phaeophytins. Only the following solvents may be used for the extraction: acetone, methyl ethyl ketone, dichloromethane, carbon dioxide, methanol, ethanol, propan-2-ol and hexane. |
Class |
Porphyrin |
Colour Index No |
75815 |
Einecs |
Copper chlorophyll a: 239-830-5; copper chlorophyll b: 246-020-5 |
Chemical names |
[Phytyl (132R,17S,18S)-3-(8-ethyl-132-methoxycarbonyl-2,7,12,18-tetramethyl-13′-oxo-3-vinyl-131-132-17,18-tetrahydrocyclopenta[at]-porphyrin-17-yl)propionate] copper (II) (Copper Chlorophyll a)[Phytyl (132R,17S,18S)-3-(8-ethyl-7-formyl-132-methoxycarbonyl-2,12,18-trimethyl-13′-oxo-3-vinyl-131-132-17,18-tetrahydrocyclopenta[at]-porphyrin-17-yl)propionate] copper (II) (Copper chlorophyll b) |
Chemical formula |
Copper chlorophyll a: C55H72Cu N4O5Copper chlorophyll b: C55H70Cu N4O6 |
Molecular weight |
Copper chlorophyll a: 932,75Copper chlorophyll b: 946,73 |
Assay |
Content of total copper chlorophylls is not less than 10 %.E1 cm1 % 540 at ca 422 nm in chloroformE1 cm1 % 300 at ca 652 nm in chloroform |
Description |
Waxy solid ranging in colour from blue green to dark green depending on the source material |
Identification
Spectrometry |
Maximum in chloroform at ca 422 nm and at ca 652 nm |
Purity
Solvent residues |
AcetoneMethyl ethyl ketoneMethanolEthanolPropan-2-olHexane |
Not more than 50 mg/kg, singly or in combination |
Dichloromethane: not more than 10 mg/kg |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 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 phaeophytins |
E 141 (ii) COPPER COMPLEXES OF CHLOROPHYLLINS
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 natural 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 neutralized 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. |
Class |
Porphyrin |
Colour Index No |
75815 |
Einecs |
|
Chemical names |
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)and3-(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 N4O5Copper chlorophyllin b (acid form): C34H30Cu N4O6 |
Molecular weight |
Copper chlorophyllin a: 640,20Copper chlorophyllin b: 654,18Each 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.E1 cm1 % 565 at ca 405 nm in aqueous phosphate buffer at pH 7,5E1 cm1 % 145 at ca 630 nm in aqueous phosphate buffer at pH 7,5 |
Description |
Dark green to blue/black powder |
Identification
Spectrometry |
Maximum in aqueous phosphate buffer at pH 7,5 at ca 405 nm and at ca 630 nm |
Purity
Solvent residues |
AcetoneMethyl ethyl ketoneMethanolEthanolPropan-2-olHexane |
Not more than 50 mg/kg, singly or in combination |
Dichloromethane: not more than 10 mg/kg |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 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 |
E 142 GREEN S
Synonyms |
CI Food Green 4, Brilliant Green BS |
Definition |
Green S consists essentially of sodium N-[4-(dimethylamino)phenyl] 2-hydroxy-3,6-disulfo-1-naphthalenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium and subsidiary colouring matters together with sodium chloride and/or sodium sulphate as the principal uncoloured compounds.Green S is described as the sodium salt. The calcium and the potassium salt are also permitted. |
Class |
Triarylmethane |
Colour Index No |
44090 |
Einecs |
221-409-2 |
Chemical names |
Sodium N-[4-[[4-(dimethylamino)phenyl](2-hydroxy-3,6-disulfo-1-naphthalenyl)-methylene]2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium;Sodium 5-[4-dimethylamino-α-(4-dimethyliminocyclohexa-2,5-dienylidene) benzyl]-6-hydroxy-7-sulfonato-naphthalene-2-sulfonate (alternative chemical name). |
Chemical formula |
C27H25N2NaO7S2 |
Molecular Weight |
576,63 |
Assay |
Content not less than 80 % total colouring matters calculated as the sodium saltE1 cm1 % 1720 at ca 632 nm in aqueous solution |
Description |
Dark blue or dark green powder or granules |
Identification
A.Spectrometry |
Maximum in water at ca 632 nm |
B.Blue or green solution in water |
|
Purity
Water insoluble matter |
Not more than 0,2 % |
Subsidiary colouring matters |
Not more than 1,0 % |
Organic compounds other than colouring matters: |
|
4,4′-bis(dimethylamino)-benzhydryl alcohol |
Not more than 0,1 % |
4,4′-bis(dimethylamino)-benzophenone |
Not more than 0,1 % |
3-hydroxynaphthalene-2,7-disulfonic acid |
Not more than 0,2 % |
Leuco base |
Not more than 5,0 % |
Unsulfonated primary aromatic amines |
Not more than 0,01 % (calculated as aniline) |
Ether extractable matter |
Not more than 0,2 % under neutral conditions |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 150d SULPHITE AMMONIA CARAMEL
Definition |
Sulphite ammonia caramel is prepared by the controlled heat treatment of carbohydrates (commercially available food grade nutritive sweeteners which are the monomers glucose and fructose and/or polymers thereof (e.g. glucose syrups, sucrose, and/or invert syrups, and dextrose) with or without acids or alkalis in the presence of both sulphite and ammonium compounds (sulphurous acid, potassium sulphite, potassium bisulphite, sodium sulphite, sodium bisulphite, ammonium hydroxide, ammonium carbonate, ammonium hydrogen carbonate, ammonium phosphate, ammonium sulphate, ammonium sulphite and ammonium hydrogen sulphite). |
Einecs |
232-435-9 |
Description |
Dark brown to black liquids or solids |
Purity
Colour bound by DEAE cellulose |
More than 50 % |
Colour intensity |
0,10-0,60 |
Ammoniacal nitrogen |
Not more than 0,6 % |
Sulphur dioxide |
Not more than 0,2 % |
4-methylimidazole |
Not more than 250 mg/kg |
Total nitrogen |
0,3-1,7 % |
Total sulphur |
0,8-2,5 % |
Nitrogen/sulphur ratio of alcohol precipitate |
0,7-2,7 |
Absorbance ratio of alcohol precipitate |
8-14 |
Absorbance ratio (A 280/560) |
Not more than 50 |
Arsenic |
Not more than 1 mg/kg |
Lead |
Not more than 2 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 25 mg/kg |
E 154 BROWN FK
Synonyms |
CI Food Brown 1 |
Definition |
Brown FK consists essentially of a mixture of:-
Isodium 4-(2,4-diaminophenylazo) benzenesulfonate
-
IIsodium 4-(4,6-diamino-m-tolylazo) benzenesulfonate
-
IIIdisodium 4,4′-(4,6-diamino-1,3-phenylenebisazo)di (benzenesulfonate)
-
IVdisodium 4,4′-(2,4-diamino-1,3-phenylenebisazo)di (benzenesulfonate)
-
Vdisodium 4,4′-(2,4-diamino-5-methyl-1,3-phenylenebisazo)di (benzenesulfonate)
-
VItrisodium 4,4′,4″-(2,4-diaminobenzene-1,3,5-trisazo)tri-(benzenesulfonate)
and subsidiary colouring matters together with water, sodium chloride and/or sodium sulfate as the principal uncoloured components.Brown FK is described as the sodium salt. The calcium and the potassium salt are also permitted. |
Class |
Azo (a mixture of mono-, bis- and trisazo colours) |
Einecs |
|
Chemical names |
A mixture of:-
Isodium 4-(2,4-diaminophenylazo) benzenesulfonate
-
IIsodium 4-(4,6-diamino-m-tolylazo) benzenesulfonate
-
IIIdisodium 4,4′-(4,6-diamino-1,3-phenylenebisazo)di (benzenesulfonate)
-
IVdisodium 4,4′-(2,4-diamino-1,3-phenylenebisazo)di (benzenesulfonate)
-
Vdisodium 4,4′-(2,4-diamino-5-methyl-1,3-phenylenebisazo)di (benzenesulfonate)
-
VItrisodium 4,4′,4″-(2,4-diaminobenzene-1,3,5-trisazo)tri-(benzenesulfonate)
|
Chemical formula |
-
IC12H11N4NaO3S
-
IIC13H13N4NaO3S
-
IIIC18H14N6Na2O6S2
-
IVC18H14N6Na2O6S2
-
VC19H16N6Na2O6S2
-
VIC24H17N8Na3O9S3
|
Molecular weight |
-
I314,30
-
II328,33
-
III520,46
-
IV520,46
-
V534,47
-
VI726,59
|
Assay |
Content not less than 70 % total colouring mattersOf the total colouring matters present the proportions of the components shall not exceed:-
I26 %
-
II17 %
-
III17 %
-
IV16 %
-
V20 %
-
VI16 %
|
Description |
Red-brown powder or granules |
Identification
Orange to reddish solution |
|
Purity
Water insoluble matter |
Not more than 0,2 % |
Subsidiary colouring matters |
Not more than 3,5 % |
Organic compounds other than colouring matters: |
|
4-aminobenzene-1-sulfonic acid |
Not more than 0,7 % |
m-phenylenediamine and 4-methyl-m-phenylenediamine |
Not more than 0,35 % |
Unsulfonated primary aromatic amines other than m-phenylene diamine and 4-methyl-m-phenylene diamine |
Not more than 0,007 % (calculated as aniline) |
Ether extractable matter |
From a solution of pH 7, not more than 0,2 % |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 160c PAPRIKA EXTRACT, CAPSANTHIN, CAPSORUBIN
Synonyms |
Paprika Oleoresin |
Definition |
Paprika extract is obtained by solvent extraction of the natural strains of paprika, which consists of the ground fruits pods, with or without seeds, of Capsicum annuum L., and contains the major colouring principles of this spice. The major colouring principles are capsanthin and capsorubin. A wide variety of other coloured compounds is known to be present.Only the following solvents may be used in the extraction: methanol, ethanol, acetone, hexane, dichloromethane, ethyl acetate and carbon dioxide. |
Class |
Carotenoid |
Einecs |
Capsanthin: 207-364-1, capsorubin: 207-425-2 |
Chemical names |
Capsanthin: (3R, 3′S, 5′R)-3,3′-dihydroxy-β,k-carotene-6-oneCapsorubin: (3S, 3′S, 5R, 5R′)-3,3′-dihydroxy-k,k-carotene-6,6′-dione |
Chemical formula |
Capsanthin: C40H56O3Capsorubin: C40H56O4 |
Molecular weight |
Capsanthin: 584,85Capsorubin: 600,85 |
Assay |
Paprika extract: content not less than 7,0 % carotenoidsCapsanthin/capsorubin: not less than 30 % of total carotenoidsE1 cm1 % 2100 at ca 462 nm in acetone |
Description |
Dark-red viscous liquid |
Identification
A.Spectrometry |
Maximum in acetone at ca 462 nm |
B.Colour reaction |
A deep blue colour is produced by adding one drop of sulfuric acid to one drop of sample in 2-3 drops of chloroform |
Purity
Solvent residues |
Ethyl acetateMethanolEthanolAcetoneHexane |
Not more than 50 mg/kg, singly or in combination |
Dichloromethane: not more than 10 mg/kg |
Capsaicin |
Not more than 250 mg/kg |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 161b LUTEIN
Synonyms |
Mixed Carotenoids, Xanthophylls |
Definition |
Lutein is obtained by solvent extraction of the natural strains of edible fruits and plants, grass, lucerne (alfalfa) and tagetes erecta. The main colouring principle consists of carotenoids of which lutein and its fatty acid esters account for the major part. Variable amounts of carotenes will also be present. Lutein may contain fats, oils and waxes naturally occurring in the plant material.Only the following solvents may be used for the extraction: methanol, ethanol, propan-2-ol, hexane, acetone, methyl ethyl ketone, dichloromethane and carbon dioxide |
Class |
Carotenoid |
Einecs |
204-840-0 |
Chemical names |
3,3′-dihydroxy-d-carotene |
Chemical formula |
C40H56O2 |
Molecular weight |
568,88 |
Assay |
Content of total colouring matter not less than 4 % calculated as luteinE1 cm1 % 2550 at ca 445 nm in chloroform/ethanol (10 + 90) or in hexane/ethanol/acetone (80 + 10 + 10) |
Description |
Dark, yellowish brown liquid |
Identification
Spectrometry |
Maximum in chloroform/ethanol (10 + 90) at ca 445 nm |
Purity
Solvent residues |
AcetoneMethyl ethyl ketoneMethanolEthanolPropan-2-olHexane |
Not more than 50 mg/kg, singly or in combination |
Dichloromethane: not more than 10 mg/kg |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 162 BEETROOT RED, BETANIN
Synonyms |
Beet Red |
Definition |
Beet red is obtained from the roots of natural strains of red beets (Beta vulgaris L. var. rubra) by pressing crushed beet as press juice or by aqueous extraction of shredded beet roots and subsequent enrichment in the active principle. The colour is composed of different pigments all belonging to the class betalaine. The main colouring principle consists of betacyanins (red) of which betanin accounts for 75-95 %. Minor amounts of betaxanthin (yellow) and degradation products of betalaines (light brown) may be present.Besides the colour pigments the juice or extract consists of sugars, salts, and/or proteins naturally occurring in red beets. The solution may be concentrated and some products may be refined in order to remove most of the sugars, salts and proteins. |
Class |
Betalaine |
Einecs |
231-628-5 |
Chemical names |
(S-(R′,R′)-4-(2-(2-Carboxy-5(β-D-glucopyranosyloxy)-2,3-dihydro-6-hydroxy-1H-indol-1-yl)ethenyl)-2,3-dihydro-2,6-pyridine-dicarboxylic acid; 1-(2-(2,6-dicarboxy-1,2,3,4-tetrahydro-4-pyridylidene)ethylidene)-5-β-D-glucopyranosyloxy)-6-hydroxyindolium-2-carboxylate |
Chemical formula |
Betanin: C24H26N2O13 |
Molecular weight |
550,48 |
Assay |
Content of red colour (expressed as betanine) is not less than 0,4 %E1 cm1 % 1120 at ca 535 nm in aqueous solution at pH 5 |
Description |
Red or dark red liquid, paste, powder or solid |
Identification
Spectrometry |
Maximum in water of pH 5 at ca 535 nm |
Purity
Nitrate |
Not more than 2 g nitrate anion/g of red colour (as calculated from assay). |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 163 ANTHOCYANINS
Definition |
Anthocyanins are obtained by extraction with sulphited water, acidified water, carbon dioxide, methanol or ethanol from the natural strains of vegetables and edible fruits. Anthocyanins contain common components of the source material, namely anthocyanine, organic acids, tannins, sugars, minerals etc., but not necessarily in the same proportions as found in the source material. |
Class |
Anthocyanin |
Einecs |
208-438-6 (cyanidin); 205-125-6 (peonidin); 208-437-0 (delphinidin); 211-403-8 (malvidin); 205-127-7 (pelargonidin) |
Chemical names |
3,3′,4′,5,7-Pentahydroxy-flavylium chloride (cyanidin)3,4′,5,7-Tetrahydroxy-3′-methoxyflavylium chloride (peonidin)3,4′,5,7-Tetrahydroxy-3′,5′-dimethoxyflavylium chloride (malvidin)3,5,7-Trihydroxy-2-(3,4,5,trihydroxyphenyl)-1-benzopyrylium chloride (delphinidin)3,3′4′,5,7-Pentahydroxy-5′-methoxyflavylium chloride (petunidin)3,5,7-Trihydroxy-2-(4-hydroxyphenyl)-1-benzopyrilium chloride (pelargonidin) |
Chemical formula |
Cyanidin: C15H11O6ClPeonidin: C16H13O6ClMalvidin: C17H15O7ClDelphinidin: C15H11O7ClPetunidin: C16H13O7ClPelargonidin: C15H11O5Cl |
Molecular weight |
Cyanidin: 322,6Peonidin: 336,7Malvidin: 366,7Delphinidin: 340,6Petunidin: 352,7Pelargonidin: 306,7 |
Assay |
E1 cm1 % 300 for the pure pigment at 515-535 nm at pH 3,0 |
Description |
Purplish-red liquid, powder or paste, having a slight characteristic odour |
Identification
Spectrometry |
Maximum in methanol with 0,01 % conc. HClCyanidin: 535 nmPeonidin: 532 nmMalvidin: 542 nmDelphinidin: 546 nmPetunidin: 543 nmPelargonidin: 530 nm |
Purity
Solvent residues |
MethanolEthanol |
Not more than 50 mg/kg, singly or in combination |
Sulfur dioxide |
Not more than 1000 mg/kg per percent pigment |
Arsenic |
Not more than 3 mg/kg |
Lead |
Not more than 10 mg/kg |
Mercury |
Not more than 1 mg/kg |
Cadmium |
Not more than 1 mg/kg |
Heavy metals (as Pb) |
Not more than 40 mg/kg |
E 172 IRON OXIDES AND IRON HYDROXIDES
Synonyms |
Iron Oxide YellowCI Pigment Yellow 42 and 43
Iron Oxide RedCI Pigment Red 101 and 102
Iron Oxide BlackCI Pigment Black 11 |
Definition |
Iron oxides and iron hydroxides are produced synthetically and consist essentially of anhydrous and/or hydrated iron oxides. The range of hues includes yellows, reds, browns and blacks. Food quality iron oxides are primarily distinguished from technical grades by the comparatively low levels of contamination by other metals. This is achieved by the selection and control of the source of the iron and/or by the extent of chemical purification during the manufacturing process. |
Class |
Inorganic |
Colour Index No |
Iron Oxide Yellow77492
Iron Oxide Red77491
Iron Oxide Black77499 |
Einecs |
Iron Oxide Yellow257-098-5
Iron Oxide Red215-168-2
Iron Oxide Black235-442-5 |
Chemical names |
Iron Oxide Yellowhydrated ferric oxide, hydrated iron (III) oxide
Iron Oxide Redanhydrous ferric oxide, anhydrous iron (III) oxide
Iron Oxide Blackferroso ferric oxide, iron (II, III) oxide |
Chemical formula |
Iron Oxide YellowFeO(OH)·H2O
Iron Oxide RedFe2O3
Iron Oxide BlackFeO·Fe2O3 |
Molecular weight |
88,85FeO(OH)
159,70Fe2O3
231,55FeO·Fe2O3 |
Assay |
Yellow not less than 60 %, red and black not less than 68 % total iron, expressed as iron |
Description |
Powder; yellow, red, brown or black in hue |
Identification
Solubility |
Insoluble in water and in organic solventsSoluble in concentrated mineral acids |
Purity
Water soluble matter |
Not more than 1,0 % |
By total dissolution |
Arsenic |
Not more than 5 mg/kg |
Barium |
Not more than 50 mg/kg |
Cadmium |
Not more than 5 mg/kg |
Chromium |
Not more than 100 mg/kg |
Copper |
Not more than 50 mg/kg |
Lead |
Not more than 20 mg/kg |
Mercury |
Not more than 1 mg/kg |
Nickel |
Not more than 200 mg/kg |
Zinc |
Not more than 100 mg/kg |