Herbs (Global Traditional) · Ayurveda
Gokarna (Clitoria ternatea) (Clitoria ternatea)
Moderate Evidencebotanical
Hermetica Superfood Encyclopedia
Clitoria ternatea (butterfly pea flower) contains anthocyanins, particularly ternatin, that cross the blood-brain barrier and exhibit neuroprotective activity. The compound modulates neurotransmitter systems and reduces oxidative stress in neural tissues.
Gokarna (Clitoria ternatea), commonly known as butterfly pea or blue pea, is a perennial climbing plant native to tropical Asia including India, Southeast Asia, and Australia. The vibrant blue flower petals are the primary source, extracted using water or ethanol-based methods at controlled temperatures (50-60°C) to preserve the anthocyanin compounds responsible for its distinctive color and bioactivity.
The research dossier reveals no human clinical trials, RCTs, or meta-analyses for Clitoria ternatea have been conducted or published. Current literature focuses exclusively on extraction optimization, phytochemical analysis, and preclinical characterization rather than human therapeutic studies.
No clinically studied dosage ranges have been established for Gokarna extracts, powders, or standardized forms. Traditional preparations include decoctions and powders from flowers and roots, but specific therapeutic doses lack scientific validation. Consult a healthcare provider before starting any new supplement.
Clitoria ternatea (Gokarna/Butterfly pea) contains bioactive compounds primarily concentrated in flowers, seeds, leaves, and roots. Flowers (most studied): anthocyanins 1–3 mg/g dry weight, predominantly ternatins (A1, A2, B1, B2, C1, C2, C3, D1, D2) — polyacylated delphinidin-based pigments unique to this species; flavonoids including kaempferol and quercetin derivatives (~0.5–1.2 mg/g); p-coumaric acid and other phenolic acids (~0.3–0.8 mg/g). Seeds: protein content approximately 18–22% dry weight; fatty acids including palmitic acid (~25% of total fats), stearic acid (~6%), oleic acid (~15%), linoleic acid (~35%); cyclotides (macrocyclic peptides — cliotides T1–T7) with demonstrated bioactivity; total carbohydrates ~55–60% dry weight; crude fiber ~6–8% dry weight. Leaves: chlorophyll a and b; carotenoids including beta-carotene (~0.8–1.2 mg/100g fresh weight); total phenolics ~15–25 mg GAE/g dry weight; vitamin C approximately 10–15 mg/100g fresh weight. Roots: taraxerol and taraxerone (triterpenoids) — considered primary nootropic compounds in Ayurvedic use; aparajitin and clitorin (flavonoid glycosides). Mineral content (leaves/flowers): calcium ~180–220 mg/100g dry weight; iron ~3–5 mg/100g dry weight; potassium ~280–350 mg/100g dry weight; magnesium ~60–90 mg/100g dry weight. Bioavailability notes: Ternatin anthocyanins show moderate bioavailability (~5–10%) consistent with most anthocyanins; fat-soluble compounds (triterpenoids) benefit from co-consumption with dietary fats; cyclotides are resistant to enzymatic degradation, enhancing oral bioavailability relative to linear peptides; aqueous extraction (traditional preparation as tea/decoction) efficiently captures water-soluble anthocyanins and flavonoids but yields minimal triterpenoids from roots.
Ternatin and other anthocyanins in Clitoria ternatea inhibit acetylcholinesterase enzyme activity, enhancing cholinergic neurotransmission in the brain. These compounds also activate Nrf2 pathways to upregulate antioxidant enzymes like glutathione peroxidase. The anthocyanins modulate cyclooxygenase-2 (COX-2) expression, reducing inflammatory prostaglandin synthesis.
Current evidence for Clitoria ternatea relies primarily on traditional Ayurvedic documentation spanning over 1,000 years rather than modern clinical trials. In vitro studies demonstrate acetylcholinesterase inhibition rates of 60-80% with concentrated extracts. Animal studies show improved spatial memory performance in maze tests, but human clinical data remains limited. No randomized controlled trials have established therapeutic dosages or measured clinical outcomes in human subjects.
Clitoria ternatea appears generally well-tolerated based on traditional use patterns, though comprehensive safety data is lacking. The herb may theoretically interact with cholinesterase inhibitor medications due to its acetylcholinesterase-inhibiting properties. High anthocyanin intake could potentially affect blood clotting in individuals taking anticoagulant medications. Pregnant and breastfeeding women should avoid use due to insufficient safety data during these periods.
