Process for extracting engelhardia roxburghiana glycosides from engelhardia roxburghiana leaves
A technology of scutellaria glucoside and process, which is applied in the field of extracting active ingredients from scutellaria chinensis leaves, can solve the problems of weak regeneration ability and resource depletion of Smilax smilax, and achieve the effect of strong regeneration ability and abundant resources
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Embodiment 1
[0037] A process for extracting rhizoma glucoside from leaves of Huang Qi, comprising the following steps:
[0038] S1: Pulverize the leaves of Huang Qi and pass through a 50-mesh sieve to obtain the powder of Huang Qi leaves;
[0039] S2: Add 82% ethanol 7 times its weight to the Huangqi leaf powder prepared in step S1, reflux extraction twice under water bath conditions, each extraction time is 2.3h, combine the extract after the extraction is complete, and adjust the pH of the extract value to 5, the temperature is controlled at 78°C, decolorized and impurity removed by activated carbon for 1 hour, and a decolorized solution is obtained after filtration;
[0040] S3: Concentrate and dry the primary decolorization solution obtained in step S2 to obtain an extract extract, which is dissolved in water at 50° C. with 5.8 times the volume of the extract extract, extracted twice with anhydrous ethyl acetate solvent, and continued to use Anhydrous ethyl acetate was subjected to c...
Embodiment 2
[0045] A process for extracting rhizoma glucoside from leaves of Huang Qi, comprising the following steps:
[0046] S1: Pulverize the leaves of Huang Qi and pass through a 40-mesh sieve to obtain Huang Qi leaves powder;
[0047] S2: Add 6 times the weight of 75% ethanol to the Huangqi leaf powder prepared in step S1, reflux extraction twice under water bath conditions, each extraction time is 2.5h, combine the extract after the extraction is complete, and adjust the pH of the extract value to 4.8, the temperature is controlled at 75°C, decolorized and impurity removed by activated carbon for 1.2h, and filtered to obtain a decolorized solution;
[0048]S3: Concentrate and dry the primary decolorization solution obtained in step S2 to obtain an extract extract, which is dissolved in water at 45° C. with 5.5 times the volume of the extract extract, extracted twice with anhydrous ethyl acetate solvent, and continued to use Anhydrous ethyl acetate was subjected to crystallization ...
Embodiment 3
[0053] A process for extracting rhizoma glucoside from leaves of Huang Qi, comprising the following steps:
[0054] S1: Pulverize the leaves of Huang Qi and pass through a 60-mesh sieve to obtain Huang Qi leaves powder;
[0055] S2: Add 8 times the weight of 84% ethanol to the Huangqi leaf powder prepared in step S1, reflux extraction under water bath conditions for 3 times, each extraction time is 2h, combine the extract after the extraction is complete, and adjust the pH value of the extract To 5.2, the temperature is controlled at 82°C, decolorized and removed by activated carbon for 0.6h, and filtered to obtain a decolorized solution;
[0056] S3: Concentrate and dry the primary decolorization solution obtained in step S2 to obtain an extract extract, which is dissolved in water at 55° C. with 6 times the volume of the extract extract, extracted 3 times with anhydrous ethyl acetate solvent, and continued to use Anhydrous ethyl acetate was crystallized three times, and the...
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