Total diterpene phenol originated from rosemary, its preparation method and use
A technology of total diterpene phenols and rosemary, which is applied in the field of total diterpene phenols derived from rosemary and its preparation and application, to achieve the effects of simple extraction method, increased content, and good color
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Embodiment 1
[0023] Embodiment 1, the preparation of rosemary total diterpene phenols
[0024] Dry the harvested rosemary and cut into sections, add 10 times the crude drug amount of 70% (v / v) ethanol for reflux extraction for 3 times; cool the combined extract to 40°C, filter to remove insoluble matter , Obtain green-brown filtrate; Decolorization: add the gac of filtrate volume weight percent 0.1% (g / ml) in this filtrate, decolorize 20min at 55 ℃, filter gac, obtain clear, transparent reddish-brown medicinal liquid; This filtrate is concentrated to a medicinal solution with a relative density of 1.10, adding 2 times the crude drug amount of water, stirring, filtering, water-soluble impurities are dissolved in the filtrate and removed, and the filter residue is dried and pulverized to obtain the total diterpenes of rosemary of the present invention Phenol, which is light yellow powder, the content of total phenols is 80%. Such as figure 2 As shown in the thin-layer chromatography detec...
Embodiment 2
[0025] Embodiment 2, the preparation of rosemary total diterpene phenols
[0026] Dry the harvested rosemary and cut into sections, add 90% (v / v) methanol of 5 times the amount of the crude drug to percolate and extract once; cool the combined extract to 60°C, filter to remove insoluble Thing, obtain green-brown filtrate; Decolouring: add the gac of filtrate volume weight percentage 0.05% (g / ml) in this filtrate, decolorize 40min at 30 ℃, remove gac by filtration, obtain clear, transparent reddish-brown medicinal liquid; Concentrate the filtrate to a medicinal solution with a relative density of 1.00, add 0.4 times the crude drug amount of water, stir, filter, water-soluble impurities are dissolved in the filtrate and removed, and the filter residue is dried and crushed to obtain a light yellow powder, which is the present invention. total diterpene phenols of rosemary, which is light yellow powder, and the content of total phenols is 45%. The sum of the contents of carnosic ...
Embodiment 3
[0027] Embodiment 3, the preparation of rosemary total diterpene phenols
[0028] Dry the harvested rosemary and cut into sections, add 12 times the crude drug amount of 50% (v / v) acetone to soak and extract 5 times; cool the combined extract to 20°C, filter to remove insoluble matter , Obtain green-brown filtrate; Decolouring: add the gac of filtrate volume weight percentage 0.5% (g / ml) in this filtrate, decolorize 5min at 80 ℃, filter and remove gac, obtain clear, transparent reddish-brown medicinal liquid; This filtrate is concentrated to a medicinal solution with a relative density of 1.05, adding 4 times the crude drug amount of water, stirring, filtering, water-soluble impurities are dissolved in the filtrate and removed, and the filter residue is dried and pulverized to obtain a light yellow powder, which is the powder of the present invention. Total diterpene phenols of rosemary, which is light yellow powder, and the content of total phenols is 60%. It mainly contains...
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