[Studies on extraction technology of total flavonoids from flower of Eriobotrya japonica].
OBJECTIVE
To study the optimum extraction technology of total flavonoids from Flower of Eriobotrya japonica.


METHODS
To screen the best extraction technology by single-factor and orthogonal experiment according to the content of total flavonoids.


RESULTS
The optimum conditions were as follows: we extracted three times at 60 degrees C, each time for 1 h and the ratio of raw materials and solution was 1:10.


CONCLUSIONS
The extracting method is fit for the extraction of total flavonoids from Flower of Eriobotrya japonica. It can also provide a scientific basis for manufacture.
Hu
Juan
J
College of Chemistry and Materials, Sichuan Normal University, Chengdu 610066, China.
Zhang
Hong
H
Liu
Gang
G
Tao
Zong-Ya
ZY
Zhong
Han
H
D031983:Eriobotrya / Q000737:chemistry*; D000431:Ethanol; D005419:Flavonoids / Q000032:analysis / Q000302:isolation & purification*; D035264:Flowers / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012997:Solvents; D013056:Spectrophotometry, Ultraviolet; D013678:Technology, Pharmaceutical / Q000379:methods*; D013696:Temperature; D013997:Time Factors
D005419:Flavonoids; D012997:Solvents; D000431:Ethanol