ENGLISH ABSTRACT
JOURNAL ARTICLE
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[Preliminary study to investigate dynamic extract process of Huanglian Jiedu Tang and the mechanism of subsidence produce].

OBJECTIVE: To study the phenomenon of subsidence emergence in the process of Huanglian Jiedu Tang decoction extraction, and the mechanism of subsidence emergence.

METHOD: UV was applied to determine the concentration of total alkaloids and total flavones; Simultaneous determination of berberine, jatrorrhizine, palmatine, baicalin and geniposide were carried out by HPLC; The solid holdup and precipitation rate were calculated by the formula. The relativity among these parameters was analyzed by the SPSS software program.

RESULT: The contains of berberine, jatrorrhizine, palmatine in total alkaloids showed a good correlation with total alkaloids. The correlation between baicalin and total flavones was lower than that between geniposide and total flavones. Compared to precipitation rate, solided hold up shows a larger relevance with index component

CONCLUSION: With the change of time, the total alkaloids represented by berberine alkaloids and baicalin at a certain concentration can be regarded as the equilibrium point, or one generated by the critical point of precipitation, the reaction can generate "sediments"; because "precipitation objects" generated, reducing the concentration of the above-mentioned components, destroy the" balance". The relevant components of herbal medicine increased dissolution rate, at the same time might partly dissolved sediment, reaching a new equilibrium state.

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