Estrogen-free rana japonica oil and preparation method thereof
A technology of wood frog oil and estrogen, which is applied in the field of traditional Chinese medicinal materials and can solve problems such as limiting the scope of application
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[0017] The dried toad oil of 10Kg is beaten into 30-60 order coarse powder with a traditional Chinese medicine pulverizer, and is used for following processing.
[0018] Take 10Kg of toad oil coarse powder, put it into a 100-liter extraction tank, add 80 liters of ethyl acetate, stir and extract at 50°C for 2 hours, release the extract, and filter the extract through a plate frame. Extract 4 times as above. The filtered extracts were combined and concentrated to dryness in vacuo at 70°C. The extracted toad oil coarse powder was vacuum-filtered at 50° C. for 24 hours to obtain dried toad oil coarse powder. The extract concentrate was dissolved in 800ML ethyl acetate, 600 grams of 100-200 mesh chromatography silica gel was added to mix the sample, and the solvent was evaporated to dryness at room temperature. Another 6 kg of 200-300 mesh chromatography silica gel was dry-packed into a chromatographic column (diameter 20 cm, height 100 cm), and eluted with a gradient of n-hexan...
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