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| Optimizing the purification process of herba epimedii by mixed flocculation agents |
| Hits 1332 Download times 1378 Received:December 20, 2006 |
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| DOI
10.11656/j.issn.1672-1519.2007.03.31 |
| Key Words
herba epimedii;mixed flocculation agent;lcohol-extraction and water precipitation;purification |
| Author Name | Affiliation | | LI Juan | The TCM Research Center of Tianjin University of TCM, Tianjin 300193, China | | ZHANG Bo-li | The TCM Research Center of Tianjin University of TCM, Tianjin 300193, China | | CUI Yuan-lu | The TCM Research Center of Tianjin University of TCM, Tianjin 300193, China | | 张艳斌 | The TCM Research Center of Tianjin University of TCM, Tianjin 300193, China |
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| Abstract
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| [Objective] To optimize the purification process of Herba epimedii by mixed flocculation agents. [Methods] The addition volume of flocculation agents were investigated and compared with traditional water-precipitation process using the yield loss rate of Icariin and residue percentage of tannin and chlorophyll as index by comprehensively weighted grading method. [Results] The optimum process was achieved when adding 3% extraction volume of gelatin and 4% extraction volume of Chitosan. The yield loss rate of Icariin was only 7.5% while the removal rate of tannin and chlorophyll reached 56.3% and 98.2%, respectively. [Conclusions] The method of adding mixed flocculation agents was promising in the field of refining alcohol-extraction of Chinese herbal medicines. |
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