[Extraction of ginkgolides from Ginkgo biloba].
OBJECTIVE
To establish the technology for extraction of ginkgolides from Ginkgo Biloba with alcohol-water.


METHODS
The parameters such as alcohol concentration, pH of extracting solution, ratio of dosage liquor, temperature and time, the extraction of ginkgolides from G. biloba was investigated, and its parameters were optimized.


RESULTS
The optimized parameters were alcohol concentration 30%, extracting temperature 50 degrees C, extracting time 2 h, pH 5 solid-liquid ratio 1:15.


CONCLUSIONS
This method has the merits of low cost and simple operation.
He
Jun
J
Guizhou Province Biochemistry Engineering Center, Guiyang 550025, China. hejun1016@163.com
Yang
Shuo
S
Yang
Jianian
J
Qing
Xiaohong
X
D020441:Ginkgo biloba / Q000737:chemistry*; D046934:Ginkgolides / Q000032:analysis / Q000302:isolation & purification*; D010936:Plant Extracts / Q000032:analysis / Q000302:isolation & purification*; D013696:Temperature
D046934:Ginkgolides; D010936:Plant Extracts