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[Optimization of Glycyrrhiza flavonoid and ferulic acid cream by reflect-line orthogonal simplex method]
Sheng Liu1, Jun Xie, Xiangqing Chen
1Affiliated Provincial Hospital,Anhui Medical University, Hefei 230001, China. lslcclhl@163.com
Objective:
To optimize the formula of Glycyrrhiza flavonoid and ferulic acid cream and set up its quality control parameters.
Method:
Reflect-line orthogonal simplex method was used to optimize the main factors such as amount of Myrj52-glyceryl monostearate and dimethicone, based on the appearance, spreadability and stability of the cream.
Result:
9.0% Myrj52-glyceryl monostearate (3:2) and 2.5% dimethicone were chosen in prescription. The prepared cream presented a good stability after being placed 24 h at 5 degrees C, 25 degrees C and 37 degrees C respectively,and its spreadability suited with the property of semi-fluid cream.
Conclusion:
[corrected] The formula of Glycyrrhiza flavonoid and ferulic acid cream is suitable, and its quality is stable. The reflect-line orthogonal simplex method is suitable for the formula optimization of cream.
