[Preparation technology of total coumarins from Laportea bulbifera].
Zhong Yao Cai
; 36(4): 636-9, 2013 Apr.
Article
em Zh
| MEDLINE
| ID: mdl-24134012
ABSTRACT
OBJECTIVE:
To investigate the preparation process of total coumarins from Laportea bulbifera.METHODS:
The optimum condition for the extraction of total coumarins was studied using the orthogonal test, and the extracts was purled with different kinds of macroporous resins. The content of total coumarins was detected by ultraviolet spectrophotometry.RESULTS:
The optimum extraction process was as follows three-time circumfluence with 4 times volume of 75% ethanol for 1.5 h each time. HPD300 macroporous resin was the optimum one for the separation and purification of total coumarins. The extraction condition was loading 30 mL of 0.4 g/mL the crude drug, flowing at 2BV/h, then edulcorating with 4 times volume of distilled water and eluting with the same volume of 75% ethanol. The yield rate was more than 52%.CONCLUSION:
This method is suitable for the preparation of total coumarins in Laportea bulbifera, and the process is stable and repeatable.
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Base de dados:
MEDLINE
Assunto principal:
Resinas Sintéticas
/
Tecnologia Farmacêutica
/
Cumarínicos
/
Urticaceae
Idioma:
Zh
Revista:
Zhong Yao Cai
Assunto da revista:
TERAPIAS COMPLEMENTARES
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
China