{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/galdieria-extract-blue",
  "slug": "galdieria-extract-blue",
  "name": "Galdieria extract blue",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": null,
    "inchikey": null,
    "pubchem_cid": null
  },
  "functional_class": null,
  "summary": "Galdieria extract blue is a blue colour from a single-celled alga that lives in acidic hot springs. It was approved in the United States in 2024 and is more stable in acid than spirulina blue, which is its main advantage.",
  "derivation_summary": "Extracted with water from cultured Galdieria sulphuraria biomass. As with spirulina the colour is phycocyanin, a protein-pigment complex, but this organism's version tolerates acidity better.",
  "regulatory_status": [
    {
      "jurisdiction": "US",
      "jurisdiction_name": "United States",
      "authority": "Food and Drug Administration",
      "status": "permitted",
      "status_label": "Permitted",
      "provision_count": 1,
      "provisions": [
        {
          "status": "permitted",
          "food_category": null,
          "max_level": null,
          "max_level_unit": null,
          "conditions": null,
          "effective_from": null,
          "citation": {
            "ref": "21 CFR 73.167",
            "url": "https://www.ecfr.gov/current/title-21/section-73.167"
          },
          "source": "ecfr",
          "retrieved_at": "2026-09-07T18:25:51.549Z"
        }
      ]
    },
    {
      "jurisdiction": "CODEX",
      "jurisdiction_name": "Codex Alimentarius",
      "authority": "Codex Alimentarius Commission / JECFA",
      "status": "not_listed",
      "status_label": "Not listed",
      "note": "Does not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.",
      "provision_count": 0,
      "provisions": []
    }
  ],
  "names": [
    {
      "name": "Galdieria extract blue",
      "type": "label",
      "source": "ecfr"
    }
  ],
  "hazard_reference_values": [],
  "sources": [
    {
      "key": "ecfr",
      "name": "Electronic Code of Federal Regulations, Title 21",
      "publisher": "U.S. Government Publishing Office / National Archives",
      "licence": "Public domain",
      "url": "https://www.ecfr.gov/api/versioner/v1/full/2026-08-31/title-21.xml",
      "retrieved_at": "2026-09-07T18:25:51.549Z"
    }
  ],
  "citation_policy": "Cite as: Food Additive Index, \"Galdieria extract blue\", https://foodadditiveindex.com/additives/galdieria-extract-blue. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.546Z"
}