A method of extracting total flavonoids from peony peony flowers

The present invention discloses a method mainly of total flavonoids extracted from peony peony, including the use of alcohol extract of peony resin rich crude total flavonoids, total flavonoids purified product precipitation and peony and peony further purified total flavonoids four large step, the present invention will lead to add acetic acid precipitation, plus H2S embodiment deleading effectively improve the product purity, 96% or more, yield of 1.0% or more, the resulting flavonoid composition clear, prepared industrialized adapted etc. the resulting active flavonoids tested showed good blood circulation effect. This method can be used from a peony flower peony flower large-scale extraction of total flavonoids, it laid the foundation for future research and development as peony and contained flavonoids.