{
    "title": "Oleocanthal vs Cancer",
    "inventor_name": null,
    "publication_year": 2015,
    "device_name": "Oleocanthal Extraction and Enrichment Process",
    "goal": "Kill cancer cells without harming healthy cells using oleocanthal",
    "problem_addressed": "Cancer treatment - selective destruction of tumor cells",
    "concept_summary": "Oleocanthal, a phenolic compound from extra-virgin olive oil, punctures lysosomal vesicles in cancer cells, releasing enzymes that cause rapid cell death while sparing normal cells. A patented chemical process enriches oleocanthal extracts to >=30 % (up to >90 % purity) using bisulfite complex formation, selective precipitation and solvent extraction.",
    "detailed_description": "Laboratory studies showed that applying oleocanthal to human cancer cell lines caused cell death within 30-60 minutes by rupturing lysosomal vesicles, leading to uncontrolled enzyme activity. Healthy cells were only temporarily halted in their cycle. The invention describes a multi-step extraction and enrichment method: (1) prepare an olive-oil extract containing oleocanthal; (2) form a bisulfite adduct by mixing the extract with sodium bisulfite (or other alkali/alkaline-earth metal bisulfites) to bind aldehydic components; (3) remove unreacted derivatives via liquid-liquid extraction; (4) deprotect the bisulfite adduct in acidic, basic or silylating conditions (e.g., chlorotrimethylsilane) to release pure oleocanthal; (5) optionally precipitate the bisulfite complex before deprotection to increase purity; (6) final solvent washes (hexane, dichloromethane, ethyl acetate, methanol, ethanol, acetone, etc.) and evaporation yield a dry extract with >30 % oleocanthal, potentially >90 % purity. The process can use hydrocarbon solvents (hexane, cyclohexane, heptane) and water-alcohol mixtures (methanol, ethanol, isopropanol) for phase separation.",
    "principles": [
        "Lysosomal membrane rupture",
        "Enzyme-mediated cell death",
        "Bisulfite adduct chemistry",
        "Selective precipitation",
        "Solvent extraction"
    ],
    "scientific_domains": [
        "Cell Biology",
        "Pharmacology",
        "Chemical Engineering",
        "Food Chemistry"
    ],
    "mechanisms_of_action": [
        "Rupture of lysosomal vesicles in cancer cells",
        "Release of lysosomal enzymes causing necrosis/apoptosis",
        "Bisulfite complex formation to isolate oleocanthal"
    ],
    "materials": [
        "Oleocanthal",
        "Sodium bisulfite",
        "Methanol",
        "Water",
        "Ethanol",
        "Hexane",
        "Cyclohexane",
        "Dichloromethane",
        "Acetonitrile",
        "Acetone",
        "Ethyl acetate",
        "Chlorotrimethylsilane",
        "Alkyl acetates",
        "Ethers",
        "Ketones"
    ],
    "energy_sources": [],
    "inputs": [
        "Virgin olive oil",
        "Bisulfite reagent",
        "Solvent mixtures (water/alcohol, hydrocarbons)",
        "Hydrocarbon (e.g., hexane)"
    ],
    "outputs": [
        "Enriched oleocanthal extract (>=30 % oleocanthal)",
        "High-purity oleocanthal (>90 % free of triglycerides and phenolics)"
    ],
    "claimed_performance": "Extract containing at least 30 % oleocanthal by weight, with optional purity >90 % after selective precipitation; cancer cells die within 30-60 minutes in vitro.",
    "experimental_evidence": "In vitro study reported cancer cell death within 30-60 minutes after oleocanthal exposure; patent examples describe extraction yields of 30 %-90 % oleocanthal purity.",
    "replication_status": null,
    "keywords": [
        "Oleocanthal",
        "Lysosome rupture",
        "Cancer cell death",
        "Olive oil phenolics",
        "Bisulfite extraction",
        "Nutraceutical",
        "Phenolic enrichment"
    ],
    "related_technologies": [
        "Nutraceutical extraction",
        "Phenolic compound purification",
        "Cancer therapeutics"
    ],
    "controversy_level": "low",
    "confidence_score": 0.9,
    "practicability_score": 0.8,
    "fringe_score": 0.2,
    "evidence_strength": 0.6,
    "risk_score": 0.1,
    "trl_estimate": 5,
    "source_urls": [
        "http://news.rutters.edu/research-news/ingredient-olive-oil-looks-promising-fight-against-cancer/20150211#.VnZtsqTR1FV",
        "https://patents.google.com/patent/FR2911872",
        "https://patents.google.com/patent/FR2825022"
    ],
    "organizations": [
        "Rutgers University",
        "Hunter College"
    ],
    "applications": [
        "Cancer therapy",
        "Nutraceutical supplements",
        "Functional foods"
    ],
    "limitations": [
        "Very low natural oleocanthal concentration in olive oil (0.002-0.02 % w/w)",
        "Need for animal and clinical studies to confirm in-vivo efficacy",
        "Complex multi-step extraction may be costly at scale"
    ],
    "open_questions": [
        "Why are cancer cells more sensitive to oleocanthal than normal cells?",
        "What is the pharmacokinetic profile of enriched oleocanthal in humans?",
        "Can the extraction process be scaled economically?"
    ],
    "red_flags": [],
    "evidence_quotes": [
        "Oleocanthal kills cancer cells without harming healthy cells, researchers have found.",
        "After applying oleocanthal to the cancer cells, ... the cancer cells were dying very quickly within 30 minutes to an hour.",
        "The cancer cells were being killed by their own enzymes. The oleocanthal was puncturing the vesicles inside the cancer cells that store the cell's waste.",
        "The process ... can achieve an extract having a high content of oleocanthal, on the order of at least 30 %, and without organic chemical reagents whose use produces adverse effects on the environment.",
        "The invention provides a process for enriching a sample containing oleocanthal, providing an extract titrated oleocanthal greater than 90 % free of triglyceride compounds."
    ],
    "category": "Chemistry & Chemical Processes"
}