Process for extracting herpetospermum pedunculosum seed oil by supercritical CO*
A wave-shaped melon seed and supercritical technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of high temperature, unfavorable heat-sensitive and easily oxidized substances, solvent residues, etc., and achieve strong solubility, no solvent residues, and easy operation The effect of low temperature
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Embodiment 1
[0044] Example 1: The mature and dried Boling melon seeds are crushed to a particle size of 80 mesh, weighed 1.6kg of Boling melon seed powder, and put it into a 5L extraction kettle for supercritical CO 2 extraction. During supercritical extraction, set the temperature of the extraction tank, separation tank I, and separation tank II and make them reach 60°C, 50°C, and 40°C respectively, and turn on the CO 2 Gas storage tank, extracting still is carried out pressurization, when extracting still pressure reached 25MPa, open the valve of control separating still I and separating still II pressure, adjust the pressure of separating still I to be 7MPa respectively, the pressure of separating still II is 5MPa, Simultaneous regulation of CO 2 The flow rate was 40L / h, the temperature and pressure were maintained, and the extract was collected every 30 minutes during the extraction period of 2.5 hours. The extraction rate was 33.56%.
Embodiment 2
[0045] Example 2: The mature and dried Boling melon seeds are pulverized to a particle size of 50 mesh, weighed 1.6kg of Boling melon seed powder, and put it into a 5L extraction kettle for supercritical CO 2 extraction. During supercritical extraction, set the temperature of the extraction tank, separation tank I, and separation tank II to 35°C, 40°C, and 30°C respectively, and turn on the CO 2 The gas storage tank pressurizes the extraction kettle, and when the pressure of the extraction kettle reaches 40MPa, open the valve of the control separation kettle I and the pressure of the separation kettle II, adjust the pressure of the separation kettle I to be 5MPa respectively, and the pressure of the separation kettle II to be 4MPa, Simultaneous regulation of CO 2 The flow rate is 20L / h, the temperature and pressure are maintained, and the extract is collected every 30min during the extraction period of 3.0h. The extraction rate is 29.45%.
Embodiment 3
[0046] Example 3: The mature and dried Boling melon seeds are pulverized to a particle size of 30 mesh, weighed 1.6kg of Boling melon seed powder, and put it into a 5L extraction kettle for supercritical CO 2 extraction. During supercritical extraction, set the temperature of the extraction tank, separation tank I, and separation tank II and make them reach 50°C, 40°C, and 30°C respectively, and turn on the CO 2 Gas storage tank, extracting still is carried out pressurization, when extracting still pressure reached 35MPa, open the valve of control separating still I and separating still II pressure, adjust the pressure of separating still I to be 5MPa respectively, the pressure of separating still II is 4MPa, Simultaneous regulation of CO 2 The flow rate was 35L / h, the temperature and pressure were maintained, and the extract was collected every 30 minutes during the extraction period of 3.5 hours. The extraction rate was 36.12%.
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