Purification of sapindus-saponin by foam separation / 中成药

AIM: To adopt the foam separation to get the best condition of the process about separation-purification sapindus-saponin. METHODS: The orthogonal experiments was used to analyse the results of the process. RESULTS: The best condition of the process was 2.5 g/L feed concentration,0.9 L/min gas flow rate,pH 4.8 and the temperature of 30 ℃.Under this condition,the yield,concentration ratio and purity of sapindus-saponin was 69.42%,2.48,and 67.78%,respectively. CONCLUSION: The process is very simple and practical,which provides a base for the application of natural sapindus-saponin.