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Natural crystalline colorant and process for production

  • US 10,214,630 B2
  • Filed: 03/03/2017
  • Issued: 02/26/2019
  • Est. Priority Date: 06/30/2011
  • Status: Active Grant
First Claim
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1. A process, comprising:

  • purifying algae containing pigments by removing at least a portion of non-pigment compounds from the algae to recover a purified pigment;

    drying the purified pigment by refractive window drying to produce a crystalline product and milling the crystalline product.

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