ABSTRACT
OBJECTIVE:To optimize the extraction technology of Compound radix fici hirta granule. METHODS:Using the transfer rate of psoralen and amygdalin in extraction liquid of Compound radix fici hirta granule and extraction rate as indexes, U12(6×4×3)uniform design was used for the test,the effects of amount of adding water,extraction time,extraction times on the extraction technology were investigated,and optimized technology was verified by three pilot scale tests. RESULTS:The optimal technology was as follow as 10-fold water,extracting for 3 times,60 min each time. Under the conditions,transfer rate of pso-ralen and amygdalin and extraction rate were 82.51%(RSD=1.45%,n=3),93.69%(RSD=0.85%,n=3),18.89%(RSD=0.74%,n=3),respectively. The validated results were in the 95% confidence interval of predictive value. CONCLUSIONS:The optimized extraction technology is stable and feasible,and provides the scientific basis for the follow-up development of the prepa-ration.
ABSTRACT
OBJECTIVE:To optimize the extraction technology of Compound radix fici hirta granule. METHODS:Using the transfer rate of psoralen and amygdalin in extraction liquid of Compound radix fici hirta granule and extraction rate as indexes, U12(6×4×3)uniform design was used for the test,the effects of amount of adding water,extraction time,extraction times on the extraction technology were investigated,and optimized technology was verified by three pilot scale tests. RESULTS:The optimal technology was as follow as 10-fold water,extracting for 3 times,60 min each time. Under the conditions,transfer rate of pso-ralen and amygdalin and extraction rate were 82.51%(RSD=1.45%,n=3),93.69%(RSD=0.85%,n=3),18.89%(RSD=0.74%,n=3),respectively. The validated results were in the 95% confidence interval of predictive value. CONCLUSIONS:The optimized extraction technology is stable and feasible,and provides the scientific basis for the follow-up development of the prepa-ration.
ABSTRACT
Objective To explore the effect of heating temperature and heating time on the dissolution characteristics of phenolic acids in water extract of Danshen Decoction. Methods The contents of tanshinol, protocatechuic aldehyde and salvianolic acid B in water extract of Danshen Decoction were determined by reverse-phase high performance liquid chromatography (RP-HPLC) . The changes of the contents were monitored by classic constant temperature acceleration method. Results Of the three components, the content of salvianolic acid was decreased with the increase of heating temperature and the prolongation of heating time, and the degradation characteristics of the salvianolic acid B met the first-order kinetics equation. Conclusion The water-soluble components have less stability in the water extracts of Danshen Decoction. Lignum Santali Albi and Fructus Amomi accelerate the degradation speed of Radix Salviae Miltiorrhizae, suggesting that we should pay attention to the influence of heating temperature and heating time on the content of salvianolic acid B in the extraction and concentration process.