XU Gui-hong, LIN Xia, CAO Miao-miao, et al. Optimization of Freeze Drying Technology for Huoxue Tongluo Preparation for Injection[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(13): 25-28.
XU Gui-hong, LIN Xia, CAO Miao-miao, et al. Optimization of Freeze Drying Technology for Huoxue Tongluo Preparation for Injection[J]. Chinese journal of experimental traditional medical formulae, 2013, 19(13): 25-28. DOI: 10.11653/syfj2013130025.
Objective:To optimize molding technology with vacuum freeze drying of Huoxue Tongluo powder for injection
and investigate its stability. Method: With composite score of freeze-dried molding effect
solubility
clarity
the content of ferulic acid and paeoniflorin as index
based on single factor test
effect of dosage of mannitol
liquid concentration
pre-freezing rate on freeze drying technology was investigated by orthogonal design
the content of ferulic acid and paeoniflorin was determined by HPLC. Result: Optimized molding technology was as following:with 5%mannitol as filler
liquid concentration 30 g·L-1
prefreezing rate 30 ℃·h-1
these prepared freeze-dried powder injection had stable quality. Conclusion: Optimized prescription and freeze-drying process was reliable and feasible