Papalla juice was a beverage which came in at least two different colors: light, transparent purple and opaque orange. Ten Forward on the USS Enterprise-D commonly served this drink.
In 2255 in the alternate reality, the Shipyard Bar in Riverside, Iowa, on Earth, offered this juice as a special item on its menu. (Star Trek)
Clara Sutter was fond of the drink and liked it especially with extra bubbles. (TNG: "Imaginary Friend")
In 2370, papalla juice was one of several foods enjoyed in the Federation sampled by Ambassador Loquel aboard the Enterprise. (TNG: "Liaisons")
Neelix sometimes gave Naomi Wildman papalla juice with her breakfast cereal. (VOY: "Once Upon a Time")