2011•Science and Technology of Food IndustryRequires access

Separation and purification of aloin from aloe by high-speed counter-current chromatography

Qi Zhang, Yan Li, Dang Pei-yu, Jun Cao

Abstract

Preparative high-speed counter-current chromatography(HSCCC)was used to separate and purify alion from the aloe.The two-phase solvent system composed of chloroform:methanol:n-butanol:water(4:3:0.28:2,V/V),the upper phase was taken as the stationary phase,and the lower one as the mobile phase.The mobile phase was operated at a flow rate of 2.0mL/min,while the apparatus rotated at 870r/min.Aloin fraction A(96% purity)and B(93% purity)were identified by thin-layer chromatography(TLC)and high performance liquid chromatography(HPLC).

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Key concepts: Countercurrent chromatography, Chromatography, Chemistry, High-performance liquid chromatography, Thin-layer chromatography, Stationary phase, Phase (matter), Methanol