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Fast Green FCF, also called Food green 3, FD&C Green No. 3, Green 1724, Solid Green FCF, and C.I. 42053, is a turquoise triarylmethane food dye. Its E number is E143. Fast Green FCF is recommended as a replacement of Light Green SF yellowish in Masson's trichrome , as its color is more brilliant and less likely to fade.
Brilliant blue FCF is an approved food colorant and pharmacologically inactive substance for drug formulations in the EU and the United States. It is also legal in other countries. In a 1979 clinical trial of patients with perennial asthma, brilliant blue FCF, tested alongside two other non- azobenzene dyes ( Erythrosine & Indigotin ), was ...
Allura Red AC, also known as FD&C Red 40 or E 129, is a red azo dye commonly used in food. It was developed in 1971 by the Allied Chemical Corporation, who gave the substance its name. [1][2] It is usually supplied as its red sodium salt but can also be used as the calcium and potassium salts. These salts are soluble in water.
Phycocyanin. Phycocyanin is a pigment -protein complex from the light-harvesting phycobiliprotein family, along with allophycocyanin and phycoerythrin. [1] It is an accessory pigment to chlorophyll. All phycobiliproteins are water-soluble, so they cannot exist within the membrane like carotenoids can. Instead, phycobiliproteins aggregate to ...
The US Food and Drug Administration has approved astaxanthin as a food coloring (or color additive) for specific uses in animal and fish foods. [3] [12] The European Commission considers it as a food dye with E number E161j. [13] The European Food Safety Authority has set an Acceptable Daily Intake of 0.2 mg per kg body weight, as of 2019. [14]
Food coloring. A variety of food colorings, added to beakers of water. Food coloring, color additive or colorant is any dye, pigment, or substance that imparts color when it is added to food or beverages. Colorants can be supplied as liquids, powders, gels, or pastes. Food coloring is commonly used in commercial products and in domestic cooking.
Amaranth, FD&C Red No. 2, E123, C.I. Food Red 9, Acid Red 27, Azorubin S, or C.I. 16185 is a modified red azo dye used as a food dye and to color cosmetics. The name was taken from amaranth grain , a plant distinguished by its red color and edible protein-rich seeds.
Azo dyes are organic compounds bearing the functional group R−N=N−R′, in which R and R′ are usually aryl and substituted aryl groups. They are a commercially important family of azo compounds, i.e. compounds containing the C-N=N-C linkage. [1] Azo dyes are synthetic dyes and do not occur naturally. [2][3] Most azo dyes contain only one ...