What is indigo carmine in food?
Indigo carmine, or 5,5′-indigodisulfonic acid sodium salt, is an organic salt derived from indigo by aromatic sulfonation, which renders the compound soluble in water. It is approved for use as a food colorant in the U.S and E.U. It has the E number E132. It is also a pH indicator.
What is indigo carmine used for?
Indigotin (indigo carmine) is a dye clinically used for diagnostic purposes. When it is intravenously administered, it causes dark blue discolouration of urine within 5-15 minutes of injection. This intense coloration enables the detection of any lesions of the urinary tract.
Is indigo carmine the same as methylene blue?
Methylene blue, which, unlike indigo carmine, is taken up by cells, induces cellular DNA damage in vitro via the generation of singlet oxygen when photoexcited by white light. In contrast, indigo carmine appears to be photostable and to possess little potential to damage genetic material in vitro.
What is indigo carmine method?
The indigo-carmine method is a simple, rapid, accurate colorimetric procedure for determining small amounts of dissolved oxygen in water (0 to 50 ppm). A solution of reduced indigo-carmine dye added to a water sample is oxidized by the presence of any dissolved oxygen and changes color.
Is Indigo Carmine natural or synthetic?
Indigotine or Indigo carmine is a synthetic color, although it used to be extracted from plants of the genus Indigofera. Together with Patent Blue V, it is used in order to confer blue coloration to foodstuffs. Both blue colors are mainly used in coatings, ice creams, and confectionary.
Where does Indigo Carmine come from?
Indigo carmine, or 5,5′-indigodisulfonic acid sodium salt, is an organic salt derived from indigo by aromatic sulfonation, which renders the compound soluble in water. It is approved for use as a food colorant in the U.S and E.U. It has the E number E132.
What is the cost of indigo carmine?
The cost for indigo carmine injectable solution (8 mg/mL) is around $993 for a supply of 25 milliliters, depending on the pharmacy you visit….Injectable Solution.
| Quantity | Per unit | Price |
|---|---|---|
| 25 (5 x 5 milliliters) | $39.72 | $993.05 |
How long does indigo carmine last?
Indigo Carmine (indigotindisulfonate) is excreted largely by the kidneys, retaining its blue color during passage through the body. Elimination of the dye begins soon after injection, appearing in the urine within 10 minutes in average cases. The biological half-life is 4 to 5 minutes following intravenous injection.
How do you make indigo carmine solution?
1. Prepare the indigo carmine solution by dissolving 1 g of indigo carmine in 100 mL of distilled or deionized water. 2. Prepare the dextrose solution by dissolving 24 g of dextrose in enough distilled or deionized water to make 1 L of solution.
What is blue2?
2 is also called indigo blue or indigotine. It is a synthetic version of indigo, a dye naturally produced from plants. Indigotine, on the other hand, is a petroleum product, with the chemical formula C16H10N2O2. It is used in baked goods, cereals, ice cream, snacks, candies and cherries.
Is indigo carmine natural or synthetic?
How is indigo carmine made?
Although Indigo Carmine can be produced by sulfonation of natural indigo, typically the indigo is also prepared synthetically by fusion of N-phenylglycine in a mixture of sodamide and sodium and potassium hydroxides under ammonia pressure. Consequently, Indigo Carmine has to be considered as a synthetic food colour.
