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    robo35's Avatar
    robo35 Posts: 9, Reputation: 1
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    #1

    Mar 20, 2009, 09:05 PM
    Chromatography of dyes and food colors
    Are the grocery food colors made one dye?
    Clough's Avatar
    Clough Posts: 26,677, Reputation: 1649
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    #2

    Mar 21, 2009, 01:09 AM

    Hi, robo35!

    Are you meaning are all the grocery food colors made from one kind of dye? If you could elaborate a little more about what you're asking, it would be helpful to those of us who come along to address your question.

    Thanks!
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #3

    Mar 21, 2009, 07:15 AM
    There are several food-grade dyes (food coloring) that are authorized for use in the United States. I'm not sure about Europe or other areas of the world, but I think they're similar.

    Wikipedia has an article on food coloring that might help you.

    Food coloring - Wikipedia, the free encyclopedia
    sarnian's Avatar
    sarnian Posts: 462, Reputation: 9
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    #4

    Mar 21, 2009, 07:57 AM
    Hello robo

    This is a link to Handbook of food analysis.

    It includes a long section on dyes and food colors
    Quite a (long) read, but it explains all your questions!
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