Cocoa and cocoa-derived products constitute a typical natural multi-component system. Their compositional profile is mainly defined by flavanol polyphenols (represented by (−)-epicatechin and proanthocyanidins), methylxanthine alkaloids (predominantly theobromine, with caffeine as a secondary ...
Beverages, such as common sodas and energy drinks, may contain many polar ingredients that are easily dissolved in the aqueous matrix of the beverage. These ingredients include sweeteners (sugar or sugar substitutes), caffeine, vitamin supplements, amino acids, organic acids, and plant extracts. ...