A method for removing bitter substances from peony seed oil
A technology of bitter substances and peony seed oil, which is applied in the direction of fat oil/fat refining and fat production, can solve the problems of loss, troublesome purification, unfavorable to the health of eaters, etc., achieves no solvent residue, removes bitter substances, and has a good purification effect Effect
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Embodiment 1
[0014] A method for removing bitter substances from peony seed oil, specifically: first pump virgin peony seed oil with an unsaturated fatty acid content of 65% into the extraction kettle, and then pump CO 2 Pump into the extraction kettle to make the pressure in the kettle reach 25MPa, and let it stand for half an hour at a temperature of 25°C; after standing still, reduce the pressure to 18MPa and continuously pump CO 2 , keep the extraction pressure at 18MPa, carry out the extraction process at a temperature of 25°C, and collect the oil; repeat the above operation 5 times, continue the extraction, and collect the residual oil in the extraction kettle. The collected oil was analyzed, and the unsaturated fatty acid content in the oil reached 89%.
[0015] Peony seed oil with an unsaturated fatty acid content of 65% has a very bitter taste, while the peony seed oil with an unsaturated fatty acid content of 89% collected through extraction has a slightly bitter taste and a grea...
Embodiment 2
[0017] A method for removing bitter substances from peony seed oil, specifically: first pump virgin peony seed oil with an unsaturated fatty acid content of 65% into the extraction kettle, and then pump CO 2 Pump into the extraction kettle to make the pressure in the kettle reach 25MPa, and let it stand for half an hour at a temperature of 25°C; after standing still, reduce the pressure to 15MPa and continuously pump CO 2 , keep the extraction pressure at 15MPa, carry out the extraction process at a temperature of 25°C, and collect the oil; repeat the above operation 5 times, continue the extraction, and collect the residual oil in the extraction kettle. The collected oil was analyzed, and the unsaturated fatty acid content in the oil reached 92%.
[0018] Peony seed oil with an unsaturated fatty acid content of 65% has an extremely bitter taste, while the peony seed oil with an unsaturated fatty acid content of 92% collected through extraction has no bitter taste and has an e...
Embodiment 3
[0020] A method for removing bitter substances from peony seed oil, specifically: first pump the virgin peony seed oil with an unsaturated fatty acid content of 65% into the extraction kettle, and then pump CO 2 Pump into the extraction kettle to make the pressure in the kettle reach 25MPa, and let it stand for half an hour at a temperature of 30°C; after standing still, reduce the pressure to 15MPa and continuously pump CO 2 , keep extraction pressure 15MP a , carry out the extraction process at a temperature of 30°C, and collect the oil; repeat the above operation 6 times, continue the extraction, and collect the residual oil in the extraction kettle. The collected oil was analyzed, and the unsaturated fatty acid content in the oil reached 92%.
[0021] Peony seed oil with an unsaturated fatty acid content of 65% has an extremely bitter taste, while the peony seed oil with an unsaturated fatty acid content of 92% collected through extraction has no bitter taste and has an e...
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