The discovery of this odorant receptor could have wide-ranging implications. For one, it helps us understand how our sense of smell works and how we distinguish between different odors. Additionally, para-cresol is not only found in horse stables, but also in various other sources like whiskey, tobacco, and even in mammal urine. Knowing which receptor detects this compound in humans opens up possibilities for potential applications in areas such as flavor enhancement, fragrance development, or even odor detection devices.
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Para-cresol is an aromatic compound with a strong horse stable-like odor. It contributes to the off-flavor of some foods, but it is also detectable as a characteristic odorant in whiskey and tobacco, as well as in the urine of various mammals. A research team has now discovered which odorant receptor humans use to perceive para-cresol.