Preparing method of concentrated Shuanghuanglian oral liquid
A technology of Shuanghuanglian oral liquid and concentrated type is applied in the preparation field of producing concentrated Shuanghuanglian oral liquid, and can solve the problems of oral liquid concentration, low content of active ingredients, incomplete extraction of active ingredients of medicines, inconvenience for taking and carrying, and the like, Achieve the effect of shortening production cycle, increasing cost consumption and shortening production cycle
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example 1
[0017] (a) Take 750g of Scutellaria baicalensis slices, add 10 times the amount of water to decoct for 2 hours, filter, add 6 times the amount of water to decoct the medicinal residues twice, each for 1 hour, filter, combine the filtrates three times, concentrate the filtrates and store at 80°C Add appropriate amount of hydrochloric acid solution to adjust the pH value to 2.0, keep it warm for 1 hour, and place it overnight, add 8 times the amount of water to the lower sediment and stir well, adjust the pH value to 7.0 with 40% sodium hydroxide solution, add an equal amount of ethanol, and stir to make Dissolve, filter, adjust the pH value of the filtrate to 2.0 with concentrated hydrochloric acid, place it overnight at 60°C for 30 minutes, filter, wash the precipitate with ethanol until the pH value reaches 7.0, and evaporate the ethanol to obtain the crude extract of Scutellaria baicalensis; Double the amount of water to suspend, adjust the pH value to 7.0, stir until dissolv...
Embodiment 2
[0021] (a) Take 750 g of Scutellaria baicalensis slices, add 9 times the amount of water to decoct for 1 hour and 50 minutes, filter, add 5.5 times the amount of water to decoct the medicinal residues twice, each 50 minutes, filter, combine the filtrate three times, concentrate the filtrate and Add an appropriate amount of hydrochloric acid solution to adjust the pH value to 2.5 at 80°C, keep it warm for 1 hour, and place it overnight, add 7 times the amount of water to the lower sediment and mix well, adjust the pH value to 7.5 with 40% sodium hydroxide solution, and then add an equal amount of ethanol, Stir to dissolve, filter, adjust the pH value of the filtrate to 2.5 with concentrated hydrochloric acid, keep it overnight at 60°C for 30 minutes, filter, wash the precipitate with ethanol until the pH value reaches 7.5, and evaporate the ethanol to obtain the crude extract of Scutellaria baicalensis; Suspend with 5 times the amount of water, adjust the pH value to 7.5, stir u...
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