Ginseng saponin superhigh pressure extraction process
An extraction method and technology of ginsenosides, applied in the direction of steroids, organic chemistry, etc., to achieve the effects of short extraction time, high efficiency, and simple process operation
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Embodiment 1
[0022] Different leaching pressure experiments
[0023] Accurately weigh 5 parts of 0.25g degreased material samples, add 25mL of ethanol with 70% concentration (i.e. solid-liquid ratio is 1g:100ml) to seal, seal and soak for 12h (hour), pressurize 100, 200, 300, 400, 500, 600MPa leaching, the pressure holding time is 2min (minutes), after pressure relief and filtration, measure the absorbance of the extract obtained by each sample, and calculate the extraction rate of ginsenosides in Table 1.
[0024] Table 1 Comparison of extraction yields under different pressures
[0025] Pressure (Mpa) Absorbance Yield (%)
[0026] 100 1.462 7.24
[0027] 200 1.486 7.36
[0028] 300 1.502 7.43
[0029] 400 1.506 7.45
[0030] 500 1.518 7.51
[0031] 600 1.504 7.44
Embodiment 2
[0033] Different solvent experiments
[0034] Accurately weigh 4 samples of 0.5g degreased material, add 25mL of water, 25mL of methanol, 25mL of 50% ethanol, and 25mL of water-saturated n-butanol (i.e. the solid-liquid ratio is 1g:50ml), seal and soak for 12h, pressurize 500MPa leaching, the holding time is 2min, the absorbance value of the extract obtained by measuring each sample is measured after pressure relief and filtration, and the calculated ginsenoside extraction rate is shown in Table 2.
[0035] Table 2 Comparison of extraction yields with different solvents
[0036] Solvent Absorbance Value Yield (%)
[0037] Water 1.148 5.68
[0038] 50% ethanol 1.442 7.14
[0039] Methanol 1.197 5.93
[0040] n-Butanol 1.393 6.90
[0041] Different solvents have different dissolution rates of saponins. Among the above solvents, ethanol has the characteristics of the highes...
Embodiment 3
[0043] Solvent Concentration Experiment
[0044] Accurately weigh 5 parts of 0.5g degreased material samples, add 25mL of ethanol with a concentration of 10%, 25%, 50%, 70%, and 90% (that is, the solid-liquid ratio is 1g: 50ml), seal and soak for 12h, add Leach at a pressure of 500 MPa, hold the pressure for 2 minutes, measure the absorbance of the extracts obtained by each sample after pressure relief and filtration, and calculate the extraction rate of ginsenosides as shown in Table 3.
[0045] Table 3 Comparison of extraction yields with different solvent concentrations
[0046] Ethanol concentration (%) Absorbance value Yield (%)
[0047] 10 1.272 6.30
[0048]30 1.413 6.99
[0049] 50 1.442 7.14
[0050] 70 1.518 7.51
[0051] 90 1.037 5.13
[0052] The concentration of ethanol, the extraction solvent, affects the dissolution rate of saponin, and choosing an app...
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