Natural colorants carmine

The same resin was used for the purification via downstream processing of carminic acid, the natural colorant extracted from cochineal. By a direct adsorption method, a crude extract was applied on the polymeric bed gel and the adsorption kinetics studied using elution with hydrochloric acid and ethanol. The desorbed pure carminic acid concentrated under vacuum yielded a final product that complied with Codex Alimentarius requirements and FAO/OMS norms. 

Carmine extracted from cochineal insects is one of the most used natural colorings for beverages and other foods. Some representative articles refer to isolation and spectrometric analysis or the use of HPLC or capillary electrophoresis (CE) to separate and characterize all cochineal pigments. Its active ingredient, carminic acid, was quantified by rapid HPLC-DAD or fluorescence spectrometry. Carminic acid, used as an additive in milk beverages, was separated within 9 min using a high-efficiency CE separation at pH 10.0 after a previous polyamide column solid phase extraction (SPE), ... 

A systematic study was carried out using in parallel 50 standard solutions for each concentration of three natural colorants (curcumin, carminic acid, and caramel as yellow, red, and brown, respectively). No false positive results for synthetics were obtained up to concentrations of 15 and 20 ng/ml for natural red and yellow colorants, respectively, or 110 ng/ml for natural brown colorant. The concentrations have to be high enough to prove that the screening method is able to accurately discriminate natural and synthetic colorants. To make a clear interpretation of the quantitative UV-Vis spectrum, linear regression analysis was used. Quantitative UV-Vis analysis of a dye ° can be calculated according to the following formula ... 

In examining these samples, we found evidence of indigo and a red dye in several samples, and the same red dye was found in other fibers. A search of our files of modern dyes showed this to be similar to the modem food colorant. Carmine Cl Natural Red 4, which is obtained from the cochineal insect Dactylopius cacti (formerly called Coccus cacti). Since it is believed that cochineal was known to the Precolumbian Peruvians, we made the comparison, and the curves are shown in Figure 5. Later, we found that William J. Young of the Museum of Fine Arts in Boston had found cochineal in Nazca textiles (12). 

Natural gas. See Methane gas Natural gasoline. See Gasoline Natural green 3. See Cl 75810 Natural iron oxides. See Ferric oxide Natural lead sulfide. See Lead sulfide Natural Liquid AP Carmine Colorant, Natural Liquid Carmine Colorant (Type 100, 50, and Simple). See Carmine (Coccus cacti)... 

Cochineal Extract. Cochineal extract (Cl Natural Red 4, Cl No. 75470 EEC No. E 120) is the concentrated solution obtained after removing the alcohol from an aqueous-alcohoHc extract of cochineal, which is the dried bodies of the female insect Coccus cacti Dactylopius coccus costd) a variety of field louse. The coloring principle of the extract is beHeved to be carminic acid [1260-17-9] (40), an hydroxyanthraquinone linked to a glucose unit, comprising approximately 10% of cochineal and 2—4% of its extract. 

Kermisic Acid. Many accounts claim that kermisic acid [476-35-7] (Cl Natural Red 3 Cl 75460) is the oldest dyestuff ever recorded (23). The name kermes is derived from an Armenian word meaning Httle worm for which the later Latin equivalent was vermiculus, the basis of the Knglish word Vermillion. The dye was obtained from an oriental shield louse, K. ilicis which infest the holm o5kQuercus ilex and the shmb oak. coccifera. The dye produces a brilliant scarlet color with an alum mordant. Although expensive, it was cheaper than its rival Tyrian Purple. It was in great demand until the sixteenth century when it was displaced by carminic acid. 

SCHUL, J. Carmine. Chap. 1 in Natural Food Colorants, Edit. G. J. Lauro and F. J. Francis. Marcel Dekker, New York, 2000, pp. 1-10. 

The structure of kermisic acid is l,3,4,5-tetrahydroxy-7-carboxy-8-mcrhylanthraquinone. Carminic acid (Cl Natural Red 4 Cl 75470). is a red dye occurring as a glycoside in the body of the cochineal insect Dactylopius coccus of the order Homoptera. family Coecidae, Until the advent of synthetic dyes, the principal use for carminic acid was for dyeing tin-mordanted wool or silk. Its aluminum lake, carmine, finds use in Lhe coloring of foods. The structural formula of carminic acid is (2). 

Carmine is the most stable, natural red, water-soluble pigment. It is extracted from the insect Dactylopius coccus costa and for this reason is available only as a colorant. The beverage industry uses special acid-stable qualities that achieve colour hues ranging from orange to red-violet, depending on the production method used. 

Compounds. — Not many of the compounds of radium have been studied carefully, owing to the scarcity of the material. They resemble quite closely the analogous barium compounds. Their peculiar nature is shown by the fact that they are always somewhat warmer than their surroundings, due to the considerable heat which they are continually radiating. Radium salts produce a carmine color in the flame. The principal salts are as follows —... 

The system of classification used by Dalzell (1997) includes two other groups of natural food colorants the phenalones (e.g., circumin and turmeric) (Fig. 7.8) anthraquinone (Fig. 7.9) (cochineal carmine). Other naturally occurring coloured... 

B Rose liquid Carmine Carmine (Coccus cacti L.) CCRIS 1204 Cochineal (Coccus cacti L.) Cochineal extract lake EINECS 215-724-4 FEMA No, 2242 FEMA No. 2330. Aluminum lake of the coloring agent, cochineal cochineal Is a natural pigment derived from the dried female insect Coccus cacti dyes, inks, indicator in chemioal analysis, coloring food, medicine. Acefo Co/p, Greet R.W. Co. Penta Mfg. Warner-Jenkinson. 

Carthamin Carthamine EINECS 252-981-1 6-P-D-Glucopyranosyl-2-[(3-p-D-glucopyranosyl-2,3,4-tri-hydroxy-5-(3-(4-hydroxyphenyl)-1-oxo-2-propenyl]-6-oxo-1,4-cyclohexadien-1 -yl]methylenep5,6-dihydroxy-4-(i(4-hydroxyphenyl)-1-oxo-2-propenyl)-4-cyclohexene-1,3 ione cathamic acid safflar carmine safflor rad C.l. Natural Red 26 C.l. 75140. Carthamin, the coloring matter oif Carthamus tinctorius mixed with French chalk used as a cosmetic. 

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