Concentration of Baicalin Extracts Using Multistage Membranes
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Abstract:
Multistage membrane processes, including microfiltration, ultrafiltration and nanofiltration, were used in the concentration of baicalin extracts at room temperature, and the concentrations of baicalin in the filtrated liquids and retentions in different membrane processes were determined with HPLC. The results showed that the water removal rate，the retention rate of baicalin and the concentration ratio were 55%, 96%, and 2.4 folds, respectively, which indicated that the method for baicalin concentration by multistage membrane was feasible at normal temperature.
