[Study on ultrasonic extraction techniques of flavonoids in Chrysanthemum morifolium].
OBJECTIVE
To optimize the ultrasonic extraction condition for flavonoids from Chrysanthemum morifolium.


METHODS
The extraction rate of flavonoids optimized condition (ethanol concentration, ultrasonic time, solvent quantity and extraction times) was determined by orthogonal design. UV-Spectrophotometry was used for the determination.


RESULTS
The order of factors to affect the flavonoid extraction was ethanol concentration > extraction times > solvent quantity > ultrasonic time.


CONCLUSIONS
The optimum ultrasonic extractions were: A2 B2 C3 D3. Compared with traditional extraction, ultraction method can save time, be easy to operate, improve extraction rates and need no heating.
Yin
Hong
H
College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310031, China.
Hu
Yong-zhou
YZ
Yang
Xin-ji
XJ
Sheng
Jing
J
Wang
Zhen
Z
D031202:Chrysanthemum / Q000737:chemistry*; D005419:Flavonoids / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D013678:Technology, Pharmaceutical / Q000379:methods*; D014465:Ultrasonics
D005419:Flavonoids