摘要：The extraction of capsanthin and capsaicin from red pepper ( Capsicum annum L.) was studied using a three-liquid-phase system (TLPS) of acetone/K2HPO4/ n -hexane. When the system consisted of 22% (w/w) acetone/20% (w/w) K2HPO4/10% (w/w) n -hexane, capsanthin was extracted into the top n -hexane-rich phase, yielding a recovery of 98.15% at a temperature of 25°C. Meanwhile, capsaicin was mainly distributed in the middle acetone-rich phase, less than 0.01% in the top phase, and undetectable in the bottom salt-rich phase. The yields of capsanthin and capsaicin were 105 and 88% of those of the conventional solvent extraction, respectively. Thus, capsanthin and capsaicin were separated through a single step at a low cost.
关键词：partition behaviour; red pepper; recovery; three-liquid-phase system (TLPS)
