[Study on the technics of adsorption and purification of baicalin by different macroporous resins].
OBJECTIVE
To ascertain the fittest technical parameters by studying the application of macroporous resins used to purify active components of baicalin.


METHODS
To evaluate the ability of adsorption and re-adsorption of macroporous resins selected, the statical and dynamic adsorption-readsorption durations were also investigated to select the optimum macroporous resins, with the content of flavonoids as the standard.


RESULTS
The optimum macroporous resins was HPD-100. In the adsorption cours, the ratio between the amount of medicinal materials and the volume of macroporous resins was 3.0 and there was no more absorbed when the ratio was 12.5; the optimum ethanol concentration was 50% in readsorption duration.


CONCLUSIONS
HPD-100 is the optimum macroporous resin to purify bailcalin and enhance its refined rate.
Li
Xiao-Min
XM
College of animal science and technology, Southwest university, Chongqing 400715, China. Lixiaomi662@sina.com
Wu
Xuan
X
Xiong
Zhong-Liang
ZL
Ma
Jin-Hua
JH
Zhu
Zhou-Fu
ZF
D000327:Adsorption; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D000431:Ethanol / Q000737:chemistry; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D010946:Plants, Medicinal / Q000737:chemistry*; D012117:Resins, Synthetic / Q000737:chemistry*; D031364:Scutellaria baicalensis / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013678:Technology, Pharmaceutical / Q000379:methods*
D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D012117:Resins, Synthetic; C038044:baicalin; D000431:Ethanol