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[Study on the extraction of the total alkaloids from Caulopyhllum robustum]
Yi-ping Li1, Guang-de Yang, Lang-chong He
1Faculty of Pharmacy, School of Medicine, Xi' an Jiaotong University, Xi' an 710061, China.
Objective:
To study the technological parameters of the extraction process of the total alkaloids from Caulopyhllum robstum.
Methods:
Taspine, whiVh is main component of the total alkaloids from Caulopyhllum robustum, was selected as an evaluating marker and determined by HPLC. The orthogonal test was used to optimize extracting conditions in the process of acid water extraction. Then the optimized conditions for purification using cation exchange resin were investigated.
Results:
The optimized conditions in the process of acid water extraction were 1% hydrochloric acid as much as seven times of the medicine amount for 24hs and three times. Then the extraction of acid water was purified with a column of macroporous cation exchange resin LSD001 at 2 ml/min of flow rate, then eluted with 10BV of 4% aqueous ammonia ethanol. The extraction ratio of the total alkaloids was 1. 35% and the content of taspine of the total alkaloids was 6. 80%.
Conclusion:
This technology is simply, cheap effective and feasible for manufacture in great scale.
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