Method for ultra high-pressure extraction of escin from Chinese buckeye seeds based on freeze drying
A technique for escin and sorrel, which is applied in chemical instruments and methods, preparation of sugar derivatives, steroids, etc., can solve the problems of increased energy consumption and cost, difficult cell wall rupture, and difficult solvent penetration, etc. Energy consumption and cost, the effect of reducing impurities, reducing the cost of extraction
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Embodiment 1
[0032] (1) Crush the saffron into powder with a particle size of 15 mesh, soak in water for 2 hours, remove it, drain the surface moisture, and place it in a freezer with a temperature of -25°C for rapid freezing;
[0033] (2) Carry out vacuum-drying to the frozen sala seed, the vacuum tightness of controlling drying process is 10pa, and temperature is 40 ℃;
[0034] (3) Add 12 times of weight of 20% ethanol to the dried Salazi, pack into a pressure-resistant, flexible soft bag and seal together, then put into the extraction container of the ultra-high pressure extraction device, extract at normal temperature, extract Proceed as follows:
[0035] 1) Boosting stage: raise the pressure in the extraction container to 200Mpa within 15 minutes;
[0036] 2) Pressure holding stage: keep the pressure for 15 minutes;
[0037] 3) Pressure relief stage: quickly release the pressure to normal pressure within 10s;
[0038] 4) Repeat steps 1)-3) once;
[0039] (4) Take out the soft bag ...
Embodiment 2
[0042] (1) Pulverize the saffron into powder with a particle size of 30 mesh, soak it in water for 3 hours, remove it, drain the water on the surface, and place it in a freezer with a temperature of -30°C for rapid freezing;
[0043] (2) carry out vacuum-drying with the frozen sala seed, the vacuum tightness of controlling drying process is 20pa, and temperature is 50 ℃;
[0044] (3) Add 15 times the weight of water to the dried sala seeds, pack them together into a pressure-resistant, flexible soft bag and seal them, then put them into an ultra-high pressure extraction device, and extract them at normal temperature. The extraction steps are as follows:
[0045] 1) Boosting stage: raise the pressure in the extraction container to 300Mpa within 10 minutes;
[0046] 2) Pressure holding stage: keep the pressure for 10 minutes;
[0047] 3) Pressure relief stage: quickly release the pressure to normal pressure within 15s;
[0048] 4) Repeat steps 1)-3) 2 times;
[0049] (4) Take...
Embodiment 3
[0052](1) Grind the saffron into a powder with a particle size of 10 mesh, soak it in water for 1 hour, remove it, drain the water on the surface, and place it in a freezer at -20°C for rapid freezing;
[0053] (2) Carry out vacuum-drying to the frozen sala seed, the vacuum tightness of controlling drying process is 15pa, and temperature is 30 ℃;
[0054] (3) Add 10 times of weight of 30% ethanol to the dried Sala seeds, pack them together into a pressure-resistant, flexible soft bag and seal them, then put them into the extraction container of an ultra-high pressure extraction device, extract at normal temperature, extract Proceed as follows:
[0055] 1) Boosting stage: raise the pressure in the extraction container to 250Mpa within 15 minutes;
[0056] 2) Pressure holding stage: keep the pressure for 20 minutes;
[0057] 3) Pressure relief stage: quickly release the pressure to normal pressure within 5s;
[0058] 4) Repeat steps 1)-3) 3 times;
[0059] (4) Take out the s...
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