Ixeris chinensis extractive and preparation method and organic acid component detecting method thereof
A kind of bitter root extract technology, which is applied in the field of Chinese bitter root extract, its preparation method and the content detection of phenolic components, can solve the problems of unsuitability for industrial production and high production cost, and achieve low cost, Good effect and simple process
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Embodiment 1
[0069] The preparation of embodiment 1 Chinese bitter root extract
[0070] Take 1 kg of dried medicinal material of the whole herb of Chia chinensis, crush it into 40 meshes, add 8 times the amount of 50% ethanol aqueous solution for reflux extraction once, each time for 1.0 hour, pour out the extract, add 10 times the amount of 50% ethanol aqueous solution for reflux extraction of the residue For 1 hour, combine all the extracts, concentrate under reduced pressure to 1 / 4 of the original volume, decolorize with activated carbon for 30 minutes, centrifuge at 4000r / min for 10 minutes, pour out the supernatant, add 2 times the volume of the supernatant to dilute with distilled water, and pass the diluted solution through Organic membrane filtration, membrane pore diameter 450nm, operating pressure 0.2MPa, operating temperature 25 ℃, obtain the organic membrane permeate, the filtrate after filtering through the filter membrane is carried out low-temperature drying, temperature 65 ...
Embodiment 2
[0071] The preparation of embodiment 2 Chinese bitter root extract
[0072] Take 1 kg of dried medicinal material of Chia chinensis, crush it into 40 meshes, add 10 times the amount of 70% ethanol aqueous solution for reflux extraction twice, each time for 1.0 hour, pour out the extract, add 10 times the amount of 70% ethanol aqueous solution for reflux extraction of the residue for 1 hour , combined all the extracts, concentrated under reduced pressure to 1 / 4 of the original volume, decolorized with activated carbon for 30 minutes, centrifuged at 4000r / min for 10 minutes, poured out the supernatant, added 2 times the volume of the supernatant to dilute with distilled water, and the diluted solution passed through the organic membrane Filtration, membrane pore diameter 450nm, operating pressure 0.2MPa, operating temperature 28 ° C, to obtain the organic membrane permeate, the filtrate after filtration through the filter membrane is dried at low temperature, the drying temperatu...
Embodiment 3
[0073] The preparation of embodiment 3 Chinese bitter root extract
[0074] Take 1 kg of dried medicinal material of Chia chinensis, crush it into 40 meshes, add 12 times the amount of 60% ethanol aqueous solution for reflux extraction once, each time for 1.5 hours, pour out the extract, add 10 times the amount of 60% ethanol aqueous solution for reflux extraction of the residue for 1 hour , combined all the extracts, concentrated under reduced pressure to 1 / 4 of the original volume, decolorized with activated carbon for 30 minutes, centrifuged at 4500r / min for 10 minutes, poured out the supernatant, added 2 times the volume of the supernatant to dilute with distilled water, and the diluted solution passed through the organic membrane Filtration, membrane pore diameter 450nm, operating pressure 0.2MPa, operating temperature 23 ° C, to obtain organic membrane permeate, the filtrate after filtration through the filter membrane is subjected to low-temperature drying, drying temper...
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