| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 642604 | Separation and Purification Technology | 2011 | 6 Pages |
A technology of two-stage foam fractionation for tea saponin recovery was studied. Effects of temperature, initial pH, loading liquid volume and superficial airflow rate in the two-stage foam fractionation process were investigated. The results showed that when the conditions of the first stage were pH 2.06, loading liquid volume 250 mL, superficial airflow rate 150 mL/min and temperature 65.0 °C, enrichment ratio and recovery percentage of tea saponin were 3.47 and 45.1%, respectively, and the residual solution was added to the second stage as initial solution. When the conditions of the second stage were temperature 30.0 °C and superficial airflow rate 200 mL/min, recovery percentage of tea saponin reached to 65.2%, and the foamate was added to the first stage as initial solution. Total recovery percentage of tea saponin reached to 80.1% by the two-stage foam fractionation.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The purpose of this paper is separating tea saponin by foam fractionation. ► Effects of temperature, pH, loading liquid volume and superficial airflow rate were studied. ► A technology of two-stage foam fractionation was proposed.
