{
  "$schema": "https://foodadditiveindex.com/api/v1/schema.json",
  "id": "https://foodadditiveindex.com/additives/butterfly-pea-flower-extract",
  "slug": "butterfly-pea-flower-extract",
  "name": "Butterfly pea flower extract",
  "identifiers": {
    "e_number": null,
    "ins_number": null,
    "cas_number": null,
    "inchikey": null,
    "pubchem_cid": null
  },
  "functional_class": null,
  "summary": "Butterfly pea flower extract is a blue colour from the flowers of Clitoria ternatea, approved in the United States in 2021. It changes from blue to purple to pink as acidity increases, which is used deliberately in drinks and confectionery.",
  "derivation_summary": "Extracted with water from dried Clitoria ternatea flowers. The colour comes from anthocyanins, the same class of pigment that colours red cabbage and blueberries, and they shift hue with pH in the same way.",
  "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 73.69",
            "url": "https://www.ecfr.gov/current/title-21/section-73.69"
          },
          "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": "Butterfly pea flower extract",
      "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, \"Butterfly pea flower extract\", https://foodadditiveindex.com/additives/butterfly-pea-flower-extract. This site reports regulatory status and does not rate additives.",
  "generated_at": "2026-09-08T00:09:38.440Z"
}