Raucaffricine (vomilenine-galactoside) was shown to be the major indole alkaloid of Rauwolfia serpentina Benth. cell suspension cultures grown in AP-medium (alkaloid production medium). Several grams of this glycoalkaloid can conveniently be isolated by RLCC (Rotation Locular Countercurrent Chromatography). A newly discovered enzyme efficiently converts the glycoalkaloid to its aglycon, vomilenine, which occupies a key function in the biosynthesis of ajmaline. This is the first demonstration of the occurrence of raucaffricine in Rauwolfia serpentina.