FDA Approves Spirulina Food Coloring


The FDA has now accepted spirulina as a food coloring for candy and gum.  The species, Arthrospira platensis, has been approved for use as of September 13, 2013. Spirulina contains phycocyanins, which are responsible for the distinct blue-green color. In order to use this extract, heavy metals such as lead, arsenic, and mercury must not exceed FDA limits and results for microcystin must test negative.



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