Radix Astragali extract and its preparation method and preparation
A technology of astragalus extract and extraction solvent, which is applied in the direction of drug combination, medical formula, plant raw materials, etc., and can solve the problems of not easy to carry, cumbersome operation, etc.
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Embodiment 1
[0040] Embodiment 1 of the present invention common sheet
[0041] Take 3750g of astragalus, add water (a mixed solution of disodium hydrogen phosphate and trisodium phosphate 1:1 to adjust the pH value to 9) and decoct twice, add 10 times the amount of water each time, the first time is 3 hours, and the second time is 2 hours , combine the decoction, filter, and concentrate the filtrate under reduced pressure to a clear paste with a relative density of about 1.15 (80°C), add ethanol to make the alcohol content 70%, stir well, let stand, take the supernatant to recover ethanol, concentrate To a clear paste with a relative density of 1.25 (80°C), dry it under reduced pressure at 70°C and -0.07MPa, crush it into a fine powder, and micronize it to D95=10μm to obtain about 375g of Astragalus extract, add 24g of starch , mixed evenly, granulated, added 2 grams of magnesium stearate, mixed evenly, pressed into 1000 tablets, film-coated, and obtained.
Embodiment 2
[0042] Embodiment 2 of the present invention ordinary sheet
[0043] Take 3750g of astragalus, add water (a mixed solution of disodium hydrogen phosphate and trisodium phosphate 1:1 to adjust the pH value to 10) and decoct twice, add 10 times the amount of water each time, the first time is 3 hours, and the second time is 2 hours , combine the decoction, filter, and concentrate the filtrate under reduced pressure to a clear paste with a relative density of about 1.17 (80°C), add ethanol to make the alcohol content 70%, stir well, let stand, take the supernatant to recover ethanol, concentrate To a clear paste with a relative density of 1.26 (80°C), dry it under reduced pressure at 70°C and -0.07MPa, crush it into a fine powder, and micronize it to D95=12μm to obtain about 380g of Astragalus extract, add 28g of starch , mixed evenly, dry granulated, added 2 grams of magnesium stearate, mixed evenly, compressed into 1000 tablets, film-coated, and obtained.
Embodiment 3
[0044] Embodiment 3 of the present invention dispersible tablet
[0045]Take 3750g of astragalus, add water (a mixed solution of disodium hydrogen phosphate and trisodium phosphate 1:1 to adjust the pH value to 9) and decoct twice, add 10 times the amount of water each time, the first time is 3 hours, and the second time is 2 hours , combine the decoction, filter, and concentrate the filtrate under reduced pressure to a clear paste with a relative density of about 1.20 (80°C), add ethanol to make the alcohol content 70%, stir well, let stand, take the supernatant to recover ethanol, concentrate To the clear paste with a relative density of 1.30 (80°C), dry it under reduced pressure at 70°C and -0.07MPa, crush it into a fine powder, and micronize it to D95=9μm to obtain about 360g of Astragalus extract, add microcrystalline fiber 90g plain, mix well, add 10g cross-linked polyvinylpyrrolidone ethanol solution (5%), granulate with 24 mesh, dry at 60°C, pass through 24 mesh sieve ...
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