Research Article
Optimization on Preparation Condition of Propolis Flavonoids Liposome by Response Surface Methodology and Research of Its Immunoenhancement Activity
Table 1
Factors and levels of Box-Behnnken experimental design.
| | Factors | Code | Range and levels | | −1 | 0 | 1 |
| | A ( ratio of lipid to drug, w/w) | | 5 : 1 | 10 : 1 | 15 : 1 | B (ratio of soybean phospholipid
to cholesterol, w/w) | | 6 : 1 | 8 : 1 | 10 : 1 | | C (speed of injection, mLmin−1) | | 0.3 | 0.6 | 1.2 |
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