Method for preventing crystallization of zanthoxylum oil resin obtained by CO2 supercritical extraction
A kind of prickly ash oleoresin, supercritical technology, applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problem of short storage time of prickly ash oleoresin
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Embodiment 1
[0018] A way to prevent CO 2 The method for supercritical extraction of Zanthoxylum bungeanum oleoresin crystallization comprises the following steps:
[0019] (1) Crush the prickly ash material to 40 meshes, then at 40°C, 35Mpa, CO 2 Extract at a flow rate of 12mL / min for 3 hours to obtain a semi-finished product of Zanthoxylum oleoresin, then conduct molecular distillation at 70°C to remove water from the semi-finished product of Zanthoxylum oleoresin, and obtain Zanthoxylum oleoresin at a temperature of 60°C after water removal;
[0020] (2) Carry out tubular centrifugation on the Zanthoxylum bungeanum oleoresin whose temperature after water removal is 60° C., the centrifugal speed is 16000 r / min, collect the outlet feed liquid, and obtain high-purity Zanthoxylum bungeanum oleoresin;
[0021] (3) Put the high-purity Zanthoxylum bungeanum oleoresin in a closed tank, first take out the air in the closed tank to form a negative pressure in the closed tank, stop pumping when t...
Embodiment 2
[0023] A way to prevent CO 2 The method for supercritical extraction of Zanthoxylum bungeanum oleoresin crystallization comprises the following steps:
[0024] (1) Grind the prickly ash material to 30 meshes, then at 45°C, 30Mpa, CO 2 Extract at a flow rate of 13mL / min for 4 hours to obtain a semi-finished product of Zanthoxylum oleoresin, then conduct molecular distillation at 72°C to remove water from the semi-finished product of Zanthoxylum oleoresin, and obtain Zanthoxylum oleoresin at a temperature of 62°C after water removal;
[0025] (2) Carry out tubular centrifugation on the Zanthoxylum bungeanum oleoresin whose temperature after water removal is 62° C., the centrifugal speed is 16000 r / min, collect the outlet feed liquid, and obtain high-purity Zanthoxylum bungeanum oleoresin;
[0026] (3) Put the high-purity Zanthoxylum bungeanum oleoresin in a closed tank, first take out the air in the closed tank to form a negative pressure in the closed tank, stop pumping when t...
Embodiment 3
[0028] A way to prevent CO 2 The method for supercritical extraction of Zanthoxylum bungeanum oleoresin crystallization comprises the following steps:
[0029] (1) Crush the prickly ash material to 40 meshes, then at 35°C, 35Mpa, CO 2 Extract at a flow rate of 14mL / min for 4 hours to obtain a semi-finished product of Zanthoxylum oleoresin, then carry out molecular distillation at 68°C to remove water from the semi-finished product of Zanthoxylum oleoresin, and obtain Zanthoxylum oleoresin at a temperature of 60°C after water removal;
[0030] (2) Carry out tubular centrifugation on the Zanthoxylum bungeanum oleoresin whose temperature after water removal is 60° C., the centrifugal speed is 16000 r / min, collect the outlet feed liquid, and obtain high-purity Zanthoxylum bungeanum oleoresin;
[0031] (3) Put the high-purity Zanthoxylum bungeanum oleoresin in a closed tank, first take out the air in the closed tank to form a negative pressure in the closed tank, stop pumping when...
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