Component

Hypochlorous acid / HOCl

Hypochlorous acid / HOCl. Species, exposure and limitations are retained in each linked claim.

7 recorded relationships. Experimental role, claim status and evidence remain attached to each record.

Read recorded mechanisms Open recursive mind map

How nutrients influence it

Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.

How nutrients reach it in more than one step

Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.

Tracing routes…

What it does

Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.

Recorded relationships

What acts on it

  1. Myeloperoxidase used hydrogen peroxide to oxidize chloride to hypochlorous acid.

    Human myeloperoxidase / MPO → Hypochlorous acid / HOCl source_derived_draftungraded
    Experimental context and source evidence
    evidence_span
    {"source_cache": "artifacts/chloride-research/9359420.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "83dc6a264dfb45201104568ac58c76509aaa0fabca1f32efd25861146b4b38c0", "start_char": 0, "end_char": 1700, "text_sha256": "83dc6a264dfb45201104568ac58c76509aaa0fabca1f32efd25861146b4b38c0"}
    experimental_model
    Purified-enzyme substrate kinetics
    exposure
    100 mM chloride with varying thiocyanate
    limitations
    Product chemistry under assay conditions; not a recommendation to raise chloride or thiocyanate intake.
    nutrient_topic
    Chloride research collection; topical membership is not evidence of a direct dietary effect. · Chloride
    organism
    Human neutrophil enzyme
    plain_language
    Immune chemistry can convert chloride into a reactive antimicrobial oxidant.
    primary_references
    [chloride-p9359420] Thiocyanate and chloride as competing substrates for myeloperoxidase. (1997). https://pubmed.ncbi.nlm.nih.gov/9359420/ DOI: 10.1042/bj3270487
    tissue_or_cell_type
    Myeloperoxidase reaction mixture

    Chloride: transport, acid-base balance, nutrient interactions and loss states (2026-09-17) · lines 614–625

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Purified-enzyme substrate kinetics · source_derived_draft · unverified_draft

    ### chloride-mpo-hocl Myeloperoxidase used hydrogen peroxide to oxidize chloride to hypochlorous acid. Condition category: normal nutrient_topic: Chloride research collection; topical membership is not evidence of a direct dietary effect. plain_language: Immune chemistry can convert chloride into a reactive antimicrobial oxidant. organism: Human neutrophil enzyme tissue_or_cell_type: Myeloperoxidase reaction mixture experimental_model: Purified-enzyme substrate kinetics limitations: Product chemistry under assay conditions; not a recommendation to raise chloride or thiocyanate intake. exposure: 100 mM chloride with varying thiocyanate evidence_span: {"source_cache": "artifacts/chloride-research/9359420.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "83dc6a264dfb45201104568ac58c76509aaa0fabca1f32efd25861146b4b38c0", "start_char": 0, "end_char": 1700, "text_sha256": "83dc6a264dfb45201104568ac58c76509aaa0fabca1f32efd25861146b4b38c0"} [chloride-p9359420] Thiocyanate and chloride as competing substrates for myeloperoxidase. (1997). https://pubmed.ncbi.nlm.nih.gov/9359420/ DOI: 10.1042/bj3270487
    Complete structured claim and evidence

  2. Betanin reacted directly with hypochlorous acid in the kinetic assay.

    Betanin → Hypochlorous acid / HOCl source_derived_draftungraded
    Experimental context and source evidence
    dose
    Micromolar substrates; concentration-dependent chlorination assays
    duration
    Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
    evidence_access
    Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
    evidence_scope
    literature_reviewed; source-derived curation, not universally established human effects
    experimental_model
    Purified human myeloperoxidase; cell-free chemistry
    limitations
    MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor.
    nutrient_topic
    Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
    organism
    Purified human myeloperoxidase; cell-free chemistry
    plain_language
    Betanin reacted directly with hypochlorous acid in the kinetic assay.
    primary_references
    Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
    route
    In vitro reagent addition
    tissue
    MPO redox cycle and HOCl solution

    Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 127–135

    Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft

    ## betalains-betanin-hocl Betanin reacted directly with hypochlorous acid in the kinetic assay. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
    Complete structured claim and evidence

  3. Indicaxanthin reacted directly with hypochlorous acid in the kinetic assay.

    Indicaxanthin → Hypochlorous acid / HOCl source_derived_draftungraded
    Experimental context and source evidence
    dose
    Micromolar substrates; concentration-dependent chlorination assays
    duration
    Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
    evidence_access
    Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
    evidence_scope
    literature_reviewed; source-derived curation, not universally established human effects
    experimental_model
    Purified human myeloperoxidase; cell-free chemistry
    limitations
    MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor.
    nutrient_topic
    Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
    organism
    Purified human myeloperoxidase; cell-free chemistry
    plain_language
    Indicaxanthin reacted directly with hypochlorous acid in the kinetic assay.
    primary_references
    Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
    route
    In vitro reagent addition
    tissue
    MPO redox cycle and HOCl solution

    Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 167–175

    Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft

    ## betalains-indicaxanthin-hocl Indicaxanthin reacted directly with hypochlorous acid in the kinetic assay. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
    Complete structured claim and evidence

  4. SAC scavenged hypochlorous acid / hocl in the tested chemical system; IC50 was 2.86 mM.

    S-allyl-L-cysteine / SAC → Hypochlorous acid / HOCl source_derived_draftungraded
    Experimental context and source evidence
    acting_entity
    s-allylcysteine
    dose
    Assay-specific millimolar IC50 values
    duration
    Not specified in accessed abstract
    evidence_access
    Primary abstract
    experimental_comparison
    SAC concentration series versus corresponding reference scavengers
    experimental_model
    Reactive-species scavenging systems
    interpretation_status
    Source-derived research curation; not independent primary verification
    limitations
    Assay potency is not an achieved human tissue concentration.
    nutrient_topic
    S-allylcysteine collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · S-allyl-L-cysteine / SAC
    organism
    Cell-free chemical assays
    plain_language
    Direct chemistry has a measured concentration requirement.
    primary_references
    [17576034] S-allylcysteine scavenges singlet oxygen and hypochlorous acid and protects LLC-PK(1) cells of potassium dichromate-induced toxicity. · 2007 · https://pubmed.ncbi.nlm.nih.gov/17576034/ · DOI 10.1016/j.fct.2007.05.002
    route
    In vitro
    tissue_or_cell_type
    Reactive-species scavenging systems

    S-allylcysteine: sulfur signaling, redox responses and cross-nutrient mechanisms (2026-09-20) · lines 95–102

    AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Reactive-species scavenging systems · source_derived_draft · unverified_draft

    ## s-allylcysteine-scavenging-hocl Direct chemistry has a measured concentration requirement. SAC scavenged hypochlorous acid / hocl in the tested chemical system; IC50 was 2.86 mM. Model: Reactive-species scavenging systems Limitations: Assay potency is not an achieved human tissue concentration. Evidence access: Primary abstract [17576034] S-allylcysteine scavenges singlet oxygen and hypochlorous acid and protects LLC-PK(1) cells of potassium dichromate-induced toxicity. · 2007 · https://pubmed.ncbi.nlm.nih.gov/17576034/ · DOI 10.1016/j.fct.2007.05.002 Structured context: {"organism": "Cell-free chemical assays", "tissue_or_cell_type": "Reactive-species scavenging systems", "dose": "Assay-specific millimolar IC50 values", "duration": "Not specified in accessed abstract", "route": "In vitro", "experimental_comparison": "SAC concentration series versus corresponding reference scavengers", "acting_entity": "s-allylcysteine", "interpretation_status": "Source-derived research curation; not independent primary verification"}
    Complete structured claim and evidence

Where it participates (unsigned role)

  1. Purified myeloperoxidase plus hydrogen peroxide, chloride and taurine generated taurine chloramine; removing chloride or peroxide, or inhibiting MPO, blocked generation.

    Human myeloperoxidase / MPO → Taurine chloramine / TauCl source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Purified human MPO system and stimulated human neutrophils.
    limitations
    Taurine chloramine remains an oxidant; free taurine is not equivalent to every chloramine effect.
    nutrient_topic
    Taurine collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Taurine
    plain_language
    An immune-cell oxidant reacts with taurine to make a different active molecule.
    primary_references
    Chlorination of taurine by human neutrophils. Evidence for hypochlorous acid generation. · 1982 · https://pubmed.ncbi.nlm.nih.gov/6286728/ · DOI 10.1172/jci110652

    Taurine: synthesis, transport, mitochondrial decoding and nutrient interactions (2026-09-19) · lines 361–367

    AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · supports · Purified human MPO system and stimulated human neutrophils. · source_derived_draft · unverified_draft

    ## taurine-mpo-chlorination An immune-cell oxidant reacts with taurine to make a different active molecule. Purified myeloperoxidase plus hydrogen peroxide, chloride and taurine generated taurine chloramine; removing chloride or peroxide, or inhibiting MPO, blocked generation. Model: Purified human MPO system and stimulated human neutrophils. Limitations: Taurine chloramine remains an oxidant; free taurine is not equivalent to every chloramine effect. Evidence access: Primary abstract Chlorination of taurine by human neutrophils. Evidence for hypochlorous acid generation. · 1982 · https://pubmed.ncbi.nlm.nih.gov/6286728/ · DOI 10.1172/jci110652
    Complete structured claim and evidence

  2. Betanin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.

    Betanin → Human myeloperoxidase / MPO source_derived_draftungraded
    Experimental context and source evidence
    dose
    Micromolar substrates; concentration-dependent chlorination assays
    duration
    Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
    evidence_access
    Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
    evidence_scope
    literature_reviewed; source-derived curation, not universally established human effects
    experimental_model
    Purified human myeloperoxidase; cell-free chemistry
    limitations
    MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor.
    nutrient_topic
    Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
    organism
    Purified human myeloperoxidase; cell-free chemistry
    plain_language
    Betanin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.
    primary_references
    Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
    route
    In vitro reagent addition
    tissue
    MPO redox cycle and HOCl solution

    Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 137–145

    Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft

    ## betalains-betanin-chlorination Betanin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
    Complete structured claim and evidence

  3. Indicaxanthin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.

    Indicaxanthin → Human myeloperoxidase / MPO source_derived_draftungraded
    Experimental context and source evidence
    dose
    Micromolar substrates; concentration-dependent chlorination assays
    duration
    Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
    evidence_access
    Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
    evidence_scope
    literature_reviewed; source-derived curation, not universally established human effects
    experimental_model
    Purified human myeloperoxidase; cell-free chemistry
    limitations
    MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor.
    nutrient_topic
    Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
    organism
    Purified human myeloperoxidase; cell-free chemistry
    plain_language
    Indicaxanthin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.
    primary_references
    Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
    route
    In vitro reagent addition
    tissue
    MPO redox cycle and HOCl solution

    Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 177–185

    Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft

    ## betalains-indicaxanthin-chlorination Indicaxanthin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
    Complete structured claim and evidence

In the sources

Preserved passages that mention this component, quoted exactly. Open one to read it in context.

    This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.

    Evidence, AI assistance and curation standards