A method for efficiently extracting salidroside and rosavir from rhodiola rosea
A technology of salidroside and rose bengal, which is applied in chemical instruments and methods, organic chemistry, sugar derivatives, etc., can solve the problems of low yield and high cost, and achieve low production costs, fewer management personnel, and simple processes Effect
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Embodiment 1
[0036] 1. Take 500kg of selected rhodiola rosea roots (the content of salidroside is 0.87% and the content of rosavirin is 0.51% as analyzed by high performance liquid chromatography), and it is washed, dried at 160°C for 40 minutes, and then pulverized by air cooling All passed through an 80-mesh sieve to obtain 496.33 kg of powder;
[0037] 2. Dynamic countercurrent extraction: 496.33 kg of powder is added to the dynamic extraction tank, with 85% cold alcohol solution of 5000 kg of 2% CTAB (cetyl trimethyl quaternary ammonium bromide) + 1% KAC (potassium acetate), at 25 °C The following low-temperature dynamic countercurrent extraction, the stage extraction time is 1.5 hours to obtain 5448.62 kg of extract;
[0038] 3. Concentration: 5448.62 extracts were poured into a vacuum concentration tank with a vacuum degree of -0.09MPA, concentrated until the specific gravity of the extract was 1.20 to obtain an extract, concentrated and recovered until there was no alcohol taste, an...
Embodiment 2
[0042] 1. Take 500kg of selected rhodiola rosea roots (the content of salidroside is 0.89% and the content of rosavirin is 0.53% analyzed by high performance liquid chromatography), and it is washed, dried at 150°C for 30 minutes, quickly air-cooled, and crushed All through a 40-mesh sieve to obtain 497.12 kg of powder;
[0043] 2. Dynamic countercurrent extraction: Add 497.12 kg of powder into the dynamic extraction tank, use 5000 kg of 1.5% CTAB (cetyl trimethyl quaternary ammonium bromide) + 0.5% KAC (potassium acetate) in 75% cold alcohol solution, 20 ° C The following low-temperature dynamic countercurrent extraction, the stage extraction time is 1 hour to obtain 5461.73 kg of extract;
[0044] 3. Concentration: 5461.73 extracts were poured into a vacuum concentration tank with a vacuum degree of -0.08MPA, concentrated until the specific gravity of the extract was 1.15 to obtain an extract, concentrated and recovered until there was no alcohol taste, and 185.37 kg of conc...
Embodiment 3
[0048] 1. Take 500 kg of selected rhodiola rosea roots (the content of salidroside is 0.84% and the content of rosavirin is 0.49% analyzed by high performance liquid chromatography), and it is washed, dried at 150°C for 40 minutes, and then pulverized by air cooling All through a 40-mesh sieve to obtain 492.36 kg of powder;
[0049] 2. Dynamic countercurrent extraction: 492.36 kg of powder is added to the dynamic extraction tank, with 80% cold alcohol solution of 5000 kg of 2% CTAB (cetyl trimethyl quaternary ammonium bromide) + 1% KAC (potassium acetate), 20- Dynamic counter-current extraction at 25°C, and the stage extraction time was 1 hour to obtain 5434.27 kg of extract;
[0050] 3. Concentration: Pour the 5434.27 extract into a vacuum concentration tank with a vacuum degree of -0.08--0.09MPA, concentrate until the specific gravity of the extract is 1.15-1.20 to obtain an extract, concentrate and recover until it has no alcohol taste, and obtain a concentrated extract o...
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