Carmine I

Concentrated H,SO, dissolves veratrine, forming a yellow solution turning orange in a few moments, and then, in about half an hour, bright carmine i esolution with veratrine, which turns dark red when cautiously heated. 

Figure 6.36. Proposed feedback of regulation of genaniol hydroxylase by indole alkaloids (Vinca rosea). Courtesy of Carmine I. Coscia, St. Louis University).

Gibaja Oviedo, S. Aldana Gibaja, L. D. Preparation of carmine. I. Evaluation of four processes for preparing carmine. Bol. Soc. Quim. Peru 1977, 43, 133-138 Chem. Abstr. 1978, 89, 91132. 

Alkaloid A. This forms a chloride, [CjoHjaONjJ+Cl", HjO, isomeric with the chlorides of toxiferine, C-eurarine I and C-curarine III the picrate has m.p. 269° (dec.). The chloride differs from the isomerides named, in potency, colour reactions and ultra-violet absorption spectrum. The chloride in 2N-sulphuric acid gives a carmine-red colour with potassium dichromate. 

Toxiferine I. C,oH,iN,+(H,0) 0-3 brown-green none yellowish-red carmine 270°... 

C-dihydrotoxiferine I 20 23 2 1-5 reddish-green none yellowish-red carmine 185°... 

JECFA, Combined compendium of food additive specifications, http //www.fao.org. Tabar-Purroy, A.I. et al.. Carmine (E 120) induced occupational asthma revisited, J. Allergy Clin. Immunol, 111, 415, 2003. 

It was stated that the chromatographic analysis of the flavonoid profde may help the determination of taxonomic relationships between these species [125], The optimization of the separation of flavonoid glycosides of Mentha piperita (Laminaceae) was carried out on silica, amino, cyano and C18 HPTLC statinoary phases. The investigation was motivated by the spasmolytic, carminative and cholagogue characteristics of the plant. Air-dried and powdered leaves of peppermint (300 g) were extracted with methanol-water 1 1 v/v at ambient temperature. The suspension was filtered, concentrated to 200 ml acidified to pH 3 with formic acid and separated in an ODS column (400 X 40 mm i.d. particle size 40 pm). 

Both HPLC and GC-MS were employed for the separation, identification and quantitation of the decomposition products of indigo and indigo carmine. The chemical structures of the dyes are shown in Fig. 3.73. Carboxylic acids were preconcentrated before HPLC analysis either by ion-exchange SPE or by solid-phase microextraction. HPLC measurements were performed in a Sarasep column (300 X 7.8 mm i.d.) using 5 mM H2S04 at a flow rate of 0.7 ml/min. Analytes were detected at 215 nm. The main intermediates formed during the photocatalytic decomposition are compiled in Table 3.26. The results demonstrated that... 

CZE using cyclodextrins (CD) as buffer additives has also been employed for the determination of synthetic dyes in various food products. The synthetic dyes New coccine, Erythrosine, Allura red AC, Tartrazine, Sunset yellow FCF, Brilliant blue FCF, Indigo carmine and Fast green FCF were included in the experiments. Measurements were carried out in a used-silica capillary (47 cm length, 40 cm to the detector, 50 pm i.d.). Capillary temperature was 25°C and separation voltage was 20 kV. Pressure injection was performed... 

A simple spot test was used for the identification of procaine, and other drugs [30], The method uses one or more of the following reagents 0.4% Alizarin red S (C.I. Mordant Red 3) in 20% acetic acid, 0.3% indigo carmine (C.I. Acid Blue 74), 0.4% indigo carmine in 30% acetic acid,... 

I write these words at the end of my Mediterranean quest that I described in the Preface. Fm at the topmost point of the medieval village of Eze in France, overlooking the French Riviera. The scent of jasmine fills the air, and the carmine colors of bougainvillea flood my eyes. I touch the remains of the stone walls around me that date back to the Bronze Age. 

Carbonato-tetrammino-cobaltic Nitrate, [Co(NH3)4C03]N03. i-H20, is prepared in the same -way as the sulphate by the action of nitric acid on cobaltous carbonate. It crystallises in glistening carmine-red rhombic plates and dissolves in water, giving a deep red solution. The crystals lose water at 100° C., but take up water again on standing in air. 

Inula britannica L. I. japonica Thunb. I. linariaefolia Turcz. I. linariaefolia Turcz. f. simplex Kom. I. salsoloides (Turcz.) Ostenfeld Xuan Fu Hua (Elecampane) (aerial part, including flower head) Inusterol A, taraxasterol, inusterol B, inulicin, flavone, caffeic acid, chlorogenic acid, isoquercitrin, quercetin, taraxasteryl palmitate, bigelovin, dihydrobigelovin.48-50 260 Discutient, vulnerary, antiemetic, carminative, diuretic, deobstruent, treat ascites, bronchitis, cancer, chest congestion. 

Exempt colors do not have to undergo formal FDA certification requirements, hut are monitored for purity. The colorants exempt from FD C certification are annatto extract, /i-carolene, beet powder, 0-apo—8 -carntenol. canlhaxanthin. caramel, carmine, carrot oil. cochineal extract, cottonseed Hour, ferrous gluconate, fruit juices, grape skin extract, paprika, paprika oleoresin. riboflavin, saffron, titanium dioxide, turmeric, turmeric oleoresin. ultramarine blue, and vegetable juices. See also Colorants (Foods). 

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