Capsaicin makes water-based solutions taste spicy despite being insoluble in water
the verdict
SUPPORTED
the evidence backs this
confidence 85/100
Capsaicin exhibits low solubility in aqueous solutions, yet it successfully activates oral trigeminal receptors to produce a burning, spicy sensation.
Evidence for · 2
Detection and modulation of capsaicin perception in the human oral cavity.
2018 · cited by 38
Paper 2 notes that capsaicin has low solubility in water, yet it still causes a burning or spicy sensation when it contacts trigeminal neurons in the oral cavity.
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More for · 1
Fabrication and Characterization of Whey Protein—Citrate Mung Bean Starch—Capsaicin Microcapsules by Spray Drying with Improved Stability and Solubility
2022 · cited by 17
Paper 6 discusses formulating microcapsules specifically to address capsaicin's poor water solubility while noting its intrinsic pungency in aqueous delivery systems.