CN115678670A - Low-temperature extraction process for peony seed oil - Google Patents
Low-temperature extraction process for peony seed oil Download PDFInfo
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- CN115678670A CN115678670A CN202211359890.6A CN202211359890A CN115678670A CN 115678670 A CN115678670 A CN 115678670A CN 202211359890 A CN202211359890 A CN 202211359890A CN 115678670 A CN115678670 A CN 115678670A
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- 241000736199 Paeonia Species 0.000 title claims abstract description 135
- 235000006484 Paeonia officinalis Nutrition 0.000 title claims abstract description 135
- 238000000605 extraction Methods 0.000 title claims abstract description 38
- 235000015112 vegetable and seed oil Nutrition 0.000 title claims abstract description 33
- 239000010779 crude oil Substances 0.000 claims abstract description 53
- 239000002904 solvent Substances 0.000 claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000003921 oil Substances 0.000 claims abstract description 26
- 235000019198 oils Nutrition 0.000 claims abstract description 26
- 238000001704 evaporation Methods 0.000 claims abstract description 24
- 230000008020 evaporation Effects 0.000 claims abstract description 23
- 238000001914 filtration Methods 0.000 claims abstract description 19
- 235000012054 meals Nutrition 0.000 claims abstract description 19
- 239000001273 butane Substances 0.000 claims abstract description 15
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims abstract description 15
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 5
- 230000000887 hydrating effect Effects 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 8
- 235000021588 free fatty acids Nutrition 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004927 clay Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000004332 deodorization Methods 0.000 claims description 4
- 230000006866 deterioration Effects 0.000 claims description 4
- 239000008151 electrolyte solution Substances 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 230000036571 hydration Effects 0.000 claims description 4
- 238000006703 hydration reaction Methods 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 150000002978 peroxides Chemical class 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 7
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- 108010064851 Plant Proteins Proteins 0.000 description 3
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 3
- 229960004488 linolenic acid Drugs 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000021118 plant-derived protein Nutrition 0.000 description 3
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 2
- 239000013543 active substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000001935 peptisation Methods 0.000 description 2
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 2
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 2
- 208000035240 Disease Resistance Diseases 0.000 description 1
- UPYKUZBSLRQECL-UKMVMLAPSA-N Lycopene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1C(=C)CCCC1(C)C)C=CC=C(/C)C=CC2C(=C)CCCC2(C)C UPYKUZBSLRQECL-UKMVMLAPSA-N 0.000 description 1
- 241000896531 Paeonia rockii Species 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 150000001746 carotenes Chemical class 0.000 description 1
- 235000005473 carotenes Nutrition 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 235000019488 nut oil Nutrition 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- NCYCYZXNIZJOKI-UHFFFAOYSA-N vitamin A aldehyde Natural products O=CC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C NCYCYZXNIZJOKI-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Abstract
The invention relates to the technical field of deep processing of peony, and particularly relates to a low-temperature extraction process of peony seed oil. The device comprises the following devices: the device comprises an extraction tank, a solvent pump, a solvent tank, a compressor, a condenser and an evaporation tank; the method comprises the following steps: removing shells of the carefully selected and impurity-removed peony seeds, and drying the peony seeds after the shells are removed; storing in dark place; baking to obtain peony seed meal; loading the peony seed meal into an extraction tank, and injecting butane solvent to soak the peony seed meal; pumping out the mixed oil in the extraction tank and injecting the mixed oil into an evaporation tank; the evaporation tank is communicated with a compressor air suction port, so that the butane solvent flows back to the solvent tank for recycling; the butane solvent is separated from the peony seed crude oil after evaporation, and the peony seed crude oil is discharged from an evaporation tank; filtering the peony seed crude oil, hydrating to degum, deacidifying, decolorizing, deodorizing, dewaxing, and finely filtering to obtain refined oil. The invention aims to provide a low-temperature extraction process of peony seed oil, which is low in cost and good in stability.
Description
Technical Field
The invention relates to the technical field of deep processing of peony, and particularly relates to a low-temperature extraction process of peony seed oil.
Background
The peony seeds are seeds of oil peonies, two kinds of oil peonies with large planting area are provided at present, namely the danfeng peonies and the paeonia rockii, the oil content of the peony seeds formed by the two kinds of oil peonies is over 20 percent, the peony seeds are high in oil content, rich in alpha-linolenic acid and unsaturated fatty acid, high in drought resistance, cold resistance and disease resistance, capable of being cultivated on ridge lands and sloping lands, and free of growth on plain for grain planting, so that high economic benefits are achieved, and the peonies have certain ornamental value, so that the industry development of oil peonies planting and peony seed oil production is very rapid.
The peony seed oil is woody nut oil extracted from peony seeds, has rich and unique nutrition and medical and health care functions, and is special health care edible oil in China. The content of unsaturated fatty acid in the peony seed oil is more than 90%, the content of alpha-linolenic acid is more than 40%, the content of alpha-linolenic acid is 140 times of that of olive oil, and the peony seed oil also contains rich physiological active ingredients such as Va, ve, nicotinic acid, carotene and the like.
However, the existing low-temperature extraction technology for the peony seed oil has high production cost, poor stability and poor precision for the peony seed oil, and is not beneficial to storage; meanwhile, the peony seed oil cannot be produced in a large scale and in an industrialized mode, so that the method is not suitable for large-scale production of the peony seed oil and has great limitation.
Disclosure of Invention
The invention aims to provide a low-temperature extraction process of peony seed oil, which is low in cost and good in stability.
The technical scheme adopted by the invention is as follows: a peony seed oil low-temperature extraction process is characterized in that: the device comprises the following equipment: the device comprises an extraction tank, a solvent pump, a solvent tank, a compressor, a condenser and an evaporation tank; the method comprises the following steps:
the method comprises the following steps: removing shells of the carefully selected and impurity-removed peony seeds, and drying the peony seeds after the shells are removed;
step two: placing the aired peony seeds into a closed container, and storing for 1-3 days in a dark place;
step three: uniformly baking the peony seeds which are preserved in a dark place at the temperature of 80-100 ℃ to obtain peony seed meal;
step four: filling the peony seed meal into an extraction tank, and injecting a butane solvent in the solvent tank into the extraction tank by using a solvent pump to soak the peony seed meal;
step five: after the peony seed meal is soaked, extracting mixed oil from the extraction tank by using a solvent pump, and injecting the mixed oil into an evaporation tank;
step six: communicating the evaporation tank with an air suction port of a compressor, so that the butane solvent is vaporized and enters the compressor, condensed and liquefied by a condenser, and flows back to the solvent tank for recycling;
step seven: the butane solvent is separated from the peony seed crude oil after evaporation, and the peony seed crude oil is discharged from the evaporation tank;
step eight: filtering the peony seed crude oil, hydrating for degumming, deacidifying, decolorizing, deodorizing, dewaxing and finely filtering to obtain refined oil.
As a further improvement, the first step is aired until the water content is 10-14%.
As a further improvement, in the step eight, the filtering process removes solid suspended matters in the peony seed crude oil, so that the impurity content of the peony seed crude oil is less than or equal to 0.2%.
As a further improvement, in the hydration degumming procedure in the step eight, a certain amount of hot water, naCl and phosphoric acid electrolyte solution are added into the peony seed crude oil under the stirring action by utilizing the hydrophilicity of peptization impurities, so that the peptization impurities are coagulated and settled.
As a further improvement, in the deacidification step in the step eight, the acid value of the peony seed crude oil is detected, the theoretical alkali addition amount and the excess alkali amount are calculated according to the acid value, free fatty acid in the peony seed crude oil is removed, the transparency can be increased, the smoke point is improved, and oxidative deterioration is prevented.
As a further improvement, in the decoloring step eight, the temperature of the peony seed crude oil is raised to 105-110 ℃ in a vacuum state for dehydration, and then the pigment substances are adsorbed by using clay and activated carbon, and the clay and the activated carbon in the peony seed crude oil are filtered by a filter.
As a further improvement, in the deodorization procedure in the step eight, the temperature of the peony seed crude oil is raised to more than 210 ℃, the vacuum degree reaches 60Pa, and the odor and the residual free fatty acid in the peony seed crude oil are further removed by direct steam by utilizing the steam stripping principle, so that the color and the peroxide value are reduced.
As a further improvement, in the dewaxing procedure in the step eight, the peony seed crude oil is slowly frozen to be gradually cooled to about 5 ℃, and then wax is removed through low-temperature filtration to reach the standard of refined oil.
The invention has the beneficial effects that: the peony seed oil produced by the peony seed oil low-temperature extraction process disclosed by the invention has the advantages that the processing cost is reduced, the low-temperature desolventizing is realized, the damage of active substances in the peony seed oil and the denaturation of plant protein are avoided, conditions are created for the extraction of refined oil and the development and utilization of the plant protein, and the application value and the popularization value are very high.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
A peony seed oil low-temperature extraction process is characterized in that: the device comprises the following devices: the device comprises an extraction tank, a solvent pump, a solvent tank, a compressor, a condenser and an evaporation tank; the method comprises the following steps:
the method comprises the following steps: selecting and removing shells of the peony seeds without impurities, and drying the peony seeds after the shells are removed;
step two: placing the aired peony seeds into a closed container, and storing for 1-3 days in a dark place;
step three: uniformly baking the peony seeds which are preserved in a dark place at the temperature of 80-100 ℃ to obtain peony seed meal;
step four: filling the peony seed meal into an extraction tank, and injecting a butane solvent in the solvent tank into the extraction tank by using a solvent pump to soak the peony seed meal;
step five: after the peony seed meal is soaked, extracting mixed oil from the extraction tank by using a solvent pump, and injecting the mixed oil into an evaporation tank;
step six: communicating the evaporation tank with an air suction port of a compressor, so that the butane solvent is vaporized and enters the compressor, condensed and liquefied by a condenser, and flows back to the solvent tank for recycling;
step seven: the butane solvent is separated from the peony seed crude oil after evaporation, and the peony seed crude oil is discharged from an evaporation tank;
step eight: filtering the peony seed crude oil, hydrating to degum, deacidifying, decolorizing, deodorizing, dewaxing, and finely filtering to obtain refined oil.
In the first step of the invention, the clothes are aired until the water content is 10-14%.
In the eighth step of the invention, the filtering process removes solid suspended matters in the peony seed crude oil, so that the impurity content of the peony seed crude oil is less than or equal to 0.2%.
According to the hydration degumming procedure in the eighth step, a certain amount of hot water, naCl and phosphoric acid electrolyte solution are added into the peony seed crude oil under the stirring action by utilizing the hydrophilicity of peptized impurities, so that the peptized impurities are coagulated and settled.
In the deacidification step in the eighth step, the acid value of the peony seed crude oil is detected, the theoretical alkali addition amount and the theoretical alkali excess amount are calculated according to the acid value, free fatty acid in the peony seed crude oil is removed, the transparency can be increased, the smoke point is improved, and oxidative deterioration is prevented.
In the step eight of the invention, in the decoloring procedure, the temperature of the peony seed crude oil is raised to 105-110 ℃ in a vacuum state for dehydration, and then white clay and active carbon are used for adsorbing pigment substances, and the white clay and the active carbon in the peony seed crude oil are filtered by a filter.
In the deodorization procedure in the eighth step, the temperature of the peony seed crude oil is raised to more than 210 ℃, the vacuum degree reaches 60Pa, and the odor and residual free fatty acid in the peony seed crude oil are further removed by direct steam by utilizing the steam stripping principle, so that the color and the peroxide value are reduced.
In the dewaxing procedure in the eighth step, the peony seed crude oil is slowly frozen to be gradually cooled to about 5 ℃, and then wax is removed through low-temperature filtration to reach the standard of refined oil.
Example (b):
the method comprises the following steps: selecting and removing shells of the peony seeds without impurities, and airing the peony seeds after the shells are removed until the water content is 12%;
step two: placing the sun-cured peony seeds into a closed container, and storing for 2 days in a dark place;
step three: uniformly baking the peony seeds stored in a dark place at the temperature of 95 ℃ to obtain peony seed meal;
step four: filling the peony seed meal into an extraction tank, and injecting a butane solvent in a solvent tank into the extraction tank by using a solvent pump to soak the peony seed meal;
step five: after the peony seed meal is soaked, extracting mixed oil from the extraction tank by using a solvent pump, and injecting the mixed oil into an evaporation tank;
step six: communicating the evaporating tank with an air suction port of a compressor, so that a butane solvent is vaporized and enters the compressor, condensed and liquefied by a condenser, and reflowed to the solvent tank for recycling;
step seven: the butane solvent is separated from the peony seed crude oil after evaporation, and the peony seed crude oil is discharged from the evaporation tank;
step eight: filtering the peony seed crude oil, hydrating to degum, deacidifying, decolorizing, deodorizing, dewaxing, and finely filtering to obtain refined oil.
S1: a filtering process, namely removing solid suspended matters in the peony seed crude oil to ensure that the impurity content of the peony seed crude oil is less than or equal to 0.2 percent;
s2: hydration degumming process, namely adding a certain amount of hot water, naCl and phosphoric acid electrolyte solution into the peony seed crude oil under the stirring action by utilizing the hydrophilicity of peptized impurities to coagulate and settle the peptized impurities;
s3: a deacidification step, namely detecting the acid value of the peony seed crude oil, calculating theoretical alkali addition and excess alkali according to the acid value, removing free fatty acid in the peony seed crude oil, increasing transparency, improving smoke point and preventing oxidative deterioration;
s4: a decolorization process, namely, in a vacuum state, raising the temperature of the peony seed crude oil to 105-110 ℃ for dehydration, adsorbing pigment substances by using argil and activated carbon, and filtering the argil and the activated carbon in the peony seed crude oil by using a filter;
s5: a deodorization procedure, namely raising the temperature of the peony seed crude oil to more than 210 ℃, enabling the vacuum degree to reach 60Pa, further removing the odor and residual free fatty acid in the peony seed crude oil by using direct steam by utilizing the steam stripping principle, and reducing the color and the peroxide value;
s6: dewaxing, namely slowly freezing the peony seed crude oil to gradually reduce the temperature to about 5 ℃, and filtering at low temperature to remove wax to reach the standard of fine oil
The embodiment shows that the peony seed oil obtained by the peony seed oil low-temperature extraction process realizes low-temperature desolventizing, avoids the damage of active substances in the peony seed oil and the denaturation of plant protein, obtains the peony seed oil with high precision and good stability, and reduces the production cost.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. A peony seed oil low-temperature extraction process is characterized by comprising the following steps: the device comprises the following devices: the device comprises an extraction tank, a solvent pump, a solvent tank, a compressor, a condenser and an evaporation tank; the method comprises the following steps:
the method comprises the following steps: selecting and removing shells of the peony seeds without impurities, and drying the peony seeds after the shells are removed;
step two: placing the sun-cured peony seeds into a closed container, and storing for 1-3 days in a dark place;
step three: uniformly baking the peony seeds which are preserved in a dark place at the temperature of 80-100 ℃ to obtain peony seed meal;
step four: filling the peony seed meal into an extraction tank, and injecting a butane solvent in the solvent tank into the extraction tank by using a solvent pump to soak the peony seed meal;
step five: after the peony seed meal is soaked, extracting mixed oil from the extraction tank by using a solvent pump, and injecting the mixed oil into an evaporation tank;
step six: communicating the evaporation tank with an air suction port of a compressor, so that the butane solvent is vaporized and enters the compressor, condensed and liquefied by a condenser, and flows back to the solvent tank for recycling;
step seven: the butane solvent is separated from the peony seed crude oil after evaporation, and the peony seed crude oil is discharged from an evaporation tank;
step eight: filtering the peony seed crude oil, hydrating to degum, deacidifying, decolorizing, deodorizing, dewaxing, and finely filtering to obtain refined oil.
2. The peony seed oil low-temperature extraction process according to claim 1, characterized in that: and in the first step, the clothes are aired until the water content is 10-14%.
3. The peony seed oil low-temperature extraction process according to claim 1, characterized in that: and in the eighth step, a filtering procedure is performed to remove solid suspended matters in the crude peony seed oil, so that the impurity content of the crude peony seed oil is less than or equal to 0.2%.
4. The peony seed oil low-temperature extraction process according to claim 1, characterized in that: and in the hydration degumming procedure in the eighth step, a certain amount of hot water, naCl and phosphoric acid electrolyte solution are added into the peony seed crude oil under the stirring action by utilizing the hydrophilicity of the peptized impurities, so that the peptized impurities are coagulated and settled.
5. The peony seed oil low-temperature extraction process according to claim 1, characterized in that: and in the deacidification step in the eighth step, the acid value of the peony seed crude oil is detected, the theoretical alkali adding amount and the theoretical alkali adding amount are calculated according to the acid value, free fatty acid in the peony seed crude oil is removed, the transparency can be increased, the smoke point is improved, and oxidative deterioration is prevented.
6. The peony seed oil low-temperature extraction process according to claim 1, characterized in that: and in the step eight, in the decoloring process, the temperature of the peony seed crude oil is raised to 105-110 ℃ in a vacuum state for dehydration, and then clay and activated carbon are utilized to adsorb pigment substances, and the clay and activated carbon in the peony seed crude oil are filtered by a filter.
7. The peony seed oil low-temperature extraction process according to claim 1, characterized in that: and in the deodorization procedure in the step eight, the temperature of the peony seed crude oil is raised to more than 210 ℃, the vacuum degree reaches 60Pa, and the odor and residual free fatty acid in the peony seed crude oil are further removed by direct steam by utilizing the steam stripping principle, so that the color and the peroxide value are reduced.
8. The peony seed oil low-temperature extraction process according to claim 1, characterized in that: and in the dewaxing procedure in the step eight, the peony seed crude oil is slowly frozen to be gradually cooled to about 5 ℃, and then wax is removed through low-temperature filtration to reach the standard of fine oil.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670778A (en) * | 2016-02-18 | 2016-06-15 | 临沂真源观光农业科技有限公司 | Method for extracting peony seed oil from peony seeds |
| CN108587775A (en) * | 2018-05-16 | 2018-09-28 | 山西潞安智华农林科技有限公司 | A kind of production technology of cold pressing peony seed oil |
| CN109593601A (en) * | 2018-12-30 | 2019-04-09 | 洛阳万景祥牡丹产业科技有限公司 | A kind of cold pressing extraction process of peony seed oil production |
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- 2022-11-02 CN CN202211359890.6A patent/CN115678670A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670778A (en) * | 2016-02-18 | 2016-06-15 | 临沂真源观光农业科技有限公司 | Method for extracting peony seed oil from peony seeds |
| CN108587775A (en) * | 2018-05-16 | 2018-09-28 | 山西潞安智华农林科技有限公司 | A kind of production technology of cold pressing peony seed oil |
| CN109593601A (en) * | 2018-12-30 | 2019-04-09 | 洛阳万景祥牡丹产业科技有限公司 | A kind of cold pressing extraction process of peony seed oil production |
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