Preparative Separation of Three Monoterpenes from Perilla frutescens var. crispa Using Centrifugal Partition Chromatography

Figure 2

HPLC profile of the SC-CO₂ extract of the leaves of P. frutescens var. crispa (cv. Antisperill) at 254 nm. Peak 1: 9-hydroxy isoegomaketone (1); peak 2: isoegomaketone (2); peak 3: perilla ketone (3) (for chromatography conditions, see Section 2).