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Caramel Furanone

Sotolon is a food additive that smells like maple syrup.

Chemical Formula: C₆H₈O₃

Other names: Sotolon, 4,5-Dimethyl-3-hydroxy-2(5H)-furanone

Layman's explanation: This is a powerful aromatic compound commonly called “caramel furanone” because it smells like maple syrup and Fenugreek. It is hypothesized that Sotolon is formed from α-ketobutyric acid and acetaldehyde. It is responsible for the sweet, caramel flavor in coffee and is a main contributor to white wine rancidity. It can be found in liquid whey, sugar, some tobacco, and a variety of wines. Sotolon’s spicy aroma is highly potent and has an odor detection threshold of 0.001 ppb.

Keywords: Caramel, Coffee, Aroma, Maple

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