CN114015499A - Hemp seed oil and its water-substituted extraction method - Google Patents
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- 239000010460 hemp oil Substances 0.000 title claims abstract description 41
- 238000000605 extraction Methods 0.000 title claims abstract description 20
- 241000218236 Cannabis Species 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000003921 oil Substances 0.000 claims abstract description 18
- 235000019198 oils Nutrition 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 15
- 238000002791 soaking Methods 0.000 claims abstract description 14
- 239000000243 solution Substances 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 238000002137 ultrasound extraction Methods 0.000 claims abstract description 4
- 238000009924 canning Methods 0.000 claims abstract description 3
- 239000006228 supernatant Substances 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 21
- 244000025254 Cannabis sativa Species 0.000 claims description 4
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 4
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 4
- 235000009120 camo Nutrition 0.000 claims description 4
- 235000005607 chanvre indien Nutrition 0.000 claims description 4
- 239000011487 hemp Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 2
- 238000009210 therapy by ultrasound Methods 0.000 claims description 2
- 238000003809 water extraction Methods 0.000 claims 4
- 239000007864 aqueous solution Substances 0.000 claims 2
- 238000007654 immersion Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 235000021122 unsaturated fatty acids Nutrition 0.000 abstract description 8
- 150000004670 unsaturated fatty acids Chemical class 0.000 abstract description 8
- 238000002386 leaching Methods 0.000 abstract description 7
- 239000003960 organic solvent Substances 0.000 abstract description 2
- 239000004480 active ingredient Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000005303 weighing Methods 0.000 description 5
- 239000004519 grease Substances 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- 206010010774 Constipation Diseases 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 230000036772 blood pressure Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 2
- 235000020777 polyunsaturated fatty acids Nutrition 0.000 description 2
- 238000000194 supercritical-fluid extraction Methods 0.000 description 2
- XSXIVVZCUAHUJO-AVQMFFATSA-N (11e,14e)-icosa-11,14-dienoic acid Chemical compound CCCCC\C=C\C\C=C\CCCCCCCCCC(O)=O XSXIVVZCUAHUJO-AVQMFFATSA-N 0.000 description 1
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 description 1
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 235000021297 Eicosadienoic acid Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 241000218231 Moraceae Species 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 235000021319 Palmitoleic acid Nutrition 0.000 description 1
- 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 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 229930002875 chlorophyll Natural products 0.000 description 1
- 235000019804 chlorophyll Nutrition 0.000 description 1
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 1
- SECPZKHBENQXJG-UHFFFAOYSA-N cis-palmitoleic acid Natural products CCCCCCC=CCCCCCCCC(O)=O SECPZKHBENQXJG-UHFFFAOYSA-N 0.000 description 1
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000000378 dietary effect Effects 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 239000003797 essential amino acid Substances 0.000 description 1
- 235000020776 essential amino acid Nutrition 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 235000004280 healthy diet Nutrition 0.000 description 1
- 208000019622 heart disease Diseases 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000027939 micturition Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000021281 monounsaturated fatty acids Nutrition 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 235000021313 oleic acid Nutrition 0.000 description 1
- 235000020660 omega-3 fatty acid Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- -1 polyphenol compounds Chemical class 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000956 solid--liquid extraction Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000019605 sweet taste sensations Nutrition 0.000 description 1
- 229960001295 tocopherol Drugs 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/106—Production of fats or fatty oils from raw materials by extracting using ultra-sounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses hemp seed oil and a water-substituted leaching extraction method thereof, wherein the method comprises the following steps: removing water from the shelled fructus cannabis at constant temperature and drying to constant weight; then crushing the fructus cannabis, putting the crushed fructus cannabis into a solution for soaking, performing ultrasonic extraction on a mixed solution obtained by soaking, then performing centrifugal separation, taking supernatant, and canning to obtain the fructus cannabis oil. Compared with the common method, the process increases the oil yield, improves the resource utilization rate and protects the active ingredients of the hemp seed oil; meanwhile, the invention has simple integral process, and obtains the high-quality hemp seed oil rich in unsaturated fatty acid without introducing an organic solvent which is difficult to treat.
Description
Technical Field
The invention relates to hemp seed oil and a water-substituted leaching extraction method thereof, belonging to the technical field of vegetable oil extraction.
Background
Fructus cannabis is a dried and mature seed of a plant in the family of Moraceae of the genus Cannabis, is widely distributed in various places of China, is mainly concentrated in North China, south China, northeast China and the like, has sweet taste and mild nature, and has the effects of strengthening the middle-jiao, replenishing qi and relieving constipation. The content of fatty acid in the fructus cannabis is 25% -45%; the content of protein is 20-25%, and the protein comprises 8 essential amino acids of human body physiological metabolism; the content of carbohydrate is about 10 to 20 percent; research shows that the fructus cannabis contains rich proteins, grease, cellulose, vitamins and the like, and also contains mineral substances, polyphenol compounds, pigments, volatile oil and the like which are needed by human bodies, and the components have the effects of resisting inflammation, reducing blood pressure, reducing blood fat, promoting urination, treating constipation, improving memory and resisting oxidation, and meet the pursuit of people for healthy diet ways. The Guangxi Bama area in China is called a longevity village, the area has excellent natural environment and is possibly related to the habit of eating hemp seed oil throughout the year by people in the area, and the incidence of senile constipation and cardiovascular and cerebrovascular diseases in the area is very low according to related reports.
The hemp seed oil is used as the extract of the hemp seed, the fatty acid composition of the hemp seed oil is mainly unsaturated fatty acid, including monounsaturated fatty acid and polyunsaturated fatty acid, such as oleic acid, linoleic acid, linolenic acid, eicosadienoic acid, palmitoleic acid and the like, and the ratio of omega-6 to omega-3 in the polyunsaturated fatty acid is close to 3:1, which accords with the proportion of unsaturated fatty acid required by normal metabolism of human body. Medical research shows that the unsaturated fatty acid has better auxiliary treatment effect on blood pressure reduction, heart disease and the like, and has important function on improving the health of human body. The hemp seed oil contains tocopherol and chlorophyll, has good antioxidant effect in grease, can improve the activity of SOD enzyme, has strong clear free radical capacity, and is suitable to be used as an antioxidant dietary resource to further play the antioxidant effect; however, unsaturated fatty acids are unstable and tend to oxidize as they are exposed to air for extended periods of time.
At present, the common extraction method of the hemp seed oil is a squeezing method, a supercritical extraction method and a solvent extraction method, the former has more complex working procedures, needs a great deal of manpower and equipment and has high cost; the supercritical extraction method has high energy consumption and long time consumption; the solvent extraction method brings toxic solvent in the extraction process, is difficult to treat and reduces the quality of the grease.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing method for extracting the hemp seed oil has the technical problems of high cost, low efficiency and the like.
In order to solve the technical problems, the invention provides a method for extracting hemp seed oil by water substitution leaching, which comprises the following steps: drying the shelled fructus cannabis at constant temperature to constant weight, removing water and loosening, then crushing the fructus cannabis, soaking the crushed fructus cannabis in a preset solution, carrying out ultrasonic extraction on the soaked mixed solution, then carrying out centrifugal separation, taking supernatant, and canning to obtain the fructus cannabis oil. Wherein, centrifugation plays roles of oil-water separation and purification and the like.
Preferably, the temperature for constant-temperature dewatering and drying is 50-80 ℃.
Preferably, the fructus cannabis is crushed, so that particles are kept between 30 and 100 meshes.
Preferably, the solution used for the soaking treatment is an aqueous ethanol solution.
More preferably, the volume concentration of ethanol in the ethanol water solution is 25-90%, and the soaking time is 0.5-4 h.
Preferably, the ultrasonic treatment is carried out for 10-50 min at 25-50 ℃ and for 80-240W.
The invention also provides the hemp seed oil extracted by the water-substituted leaching extraction method of the hemp seed oil.
The invention adopts an improved extraction method combining water substitution and solvent leaching with additional ultrasonic wave assistance. In order to overcome the defect that unsaturated fatty acids and other components in the hemp seed oil are easy to oxidize, the unsaturated fatty acids in the hemp seed oil are protected by using a solvent in the extraction process, so that the unsaturated components in the hemp seed oil can be retained and extracted to the greatest extent, the effective components are not damaged, the method is low in energy consumption, short in time consumption and simple and convenient in process, and the obtained hemp seed oil is high in quality. The invention has the advantages that the invention discloses an extraction method combining water substitution and solvent leaching, which is suitable for extracting the hemp seed oil, and the solvent has double functions of extraction and protection, so that unsaturated fatty acid in the hemp seed can be transferred out to the maximum extent and cannot be damaged in the process.
Compared with the prior art, the invention has the beneficial effects that:
1. the extraction process utilizes the solid-liquid extraction principle to leach the grease in the materials as much as possible, simultaneously combines a water substitution method, water and oil are not mutually soluble, and oil-water separation is carried out by utilizing the difference of the affinity of non-oil components in the oil to the oil and the water and the difference of the specific gravity of the oil and the water, so that the purity of the oil is improved;
2. the invention adds the processes of drying, soaking and the like, thereby improving the oil yield;
3. according to the method, the crushed hemp seed powder is subjected to ultrasonic auxiliary treatment by adopting a water-substituted solvent leaching method which is reported in the hemp seed oil extraction, and the oil yield is greatly improved by the solvent and ultrasonic extraction effect;
4. the invention has simple process, low energy consumption and low solvent consumption;
5. the hemp seed oil obtained by using the water edible alcohol as the solvent and introducing no organic solvent difficult to treat does not damage the effective components in the hemp seed oil, and the hemp seed oil obtained by the double effects of solvent extraction and protection has good quality.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below.
Example 1
Firstly, putting the shelled fructus cannabis into a constant-temperature drying oven, drying for 12 hours at the temperature of 50 ℃, and then putting the dried fructus cannabis into a pulverizer to pulverize into fructus cannabis powder. Weighing 20.1g of fructus cannabis powder in a conical flask with a stopper, adding 100mL of 25 wt% ethanol solution, soaking for 2h, treating at 25 ℃ in water bath, adjusting the ultrasonic power to 240W with an ultrasonic instrument for 20min, standing the mixed solution at room temperature, centrifuging, and taking the upper oily liquid to obtain the fructus cannabis oil.
The obtained hemp seed oil is a yellow-green clear transparent liquid, and the extraction rate of the obtained hemp seed oil is 19.78%.
Example 2
Firstly, putting the shelled fructus cannabis into a constant-temperature drying oven, drying for 10 hours at the temperature of 60 ℃, and then putting the dried fructus cannabis into a pulverizer to pulverize into fructus cannabis powder. Weighing 20.0g of fructus cannabis powder in a conical flask with a stopper, adding 200mL of 50 wt% ethanol solution, soaking for 3h, treating at 40 ℃ in water bath, adjusting the ultrasonic power to 180W with an ultrasonic instrument for 30min, standing the mixed solution at room temperature, centrifuging, and taking the upper oily liquid to obtain the fructus cannabis oil.
The obtained hemp seed oil is a yellow-green clear transparent liquid, and the extraction rate of the obtained hemp seed oil is 20.15%.
Example 3
Firstly, putting the shelled fructus cannabis into a constant-temperature drying oven, drying for 9 hours at the temperature of 70 ℃, and then putting the dried fructus cannabis into a pulverizer to pulverize into fructus cannabis powder. Weighing 20.0g of fructus cannabis powder in a conical flask with a stopper, adding 200mL of 75 wt% ethanol solution, soaking for 1h, treating at 50 ℃ in water bath, adjusting the ultrasonic power to 130W with an ultrasonic instrument for 20min, standing the mixed solution at room temperature, centrifuging, and taking the upper oily liquid to obtain the fructus cannabis oil.
The obtained hemp seed oil is a yellow-green clear transparent liquid, and the measured extraction rate of the hemp seed oil is 18.42%.
Example 4
Firstly, putting the shelled fructus cannabis into a constant-temperature drying oven, drying for 9 hours at the temperature of 70 ℃, and then putting the dried fructus cannabis into a pulverizer to pulverize into fructus cannabis powder. Weighing 20.0g of fructus cannabis powder in a conical flask with a plug, adding 300mL of 25 wt% ethanol solution, soaking for 4h, treating at 40 ℃ in water bath, adjusting the ultrasonic power to 180W with an ultrasonic instrument for 30min, standing the mixed solution at room temperature, centrifuging, and taking the upper oily liquid to obtain the fructus cannabis oil.
The obtained hemp seed oil is a yellow-green clear transparent liquid, and the extraction rate of the hemp seed oil is 20.88%.
Example 5
Firstly, putting the shelled fructus cannabis into a constant-temperature drying oven, drying for 6 hours at the temperature of 80 ℃, and then putting the dried fructus cannabis into a pulverizer to pulverize into fructus cannabis powder. Weighing 20.0g of fructus cannabis powder in a conical flask with a plug, adding 300mL of 90 wt% ethanol solution, soaking for 4h, treating at 50 ℃ in water bath, adjusting the ultrasonic power to 80W with an ultrasonic instrument for 50min, standing the mixed solution at room temperature, centrifuging, and taking the upper oily liquid to obtain the fructus cannabis oil.
The obtained hemp seed oil is a yellow-green clear transparent liquid, and the measured extraction rate of the hemp seed oil is 18.94%.
Claims (7)
1. A method for extracting fructus Cannabis oil by water extraction is characterized in that the shelled fructus Cannabis is dewatered at constant temperature and dried to constant weight; then crushing the fructus cannabis, putting the crushed fructus cannabis into a solution for soaking, performing ultrasonic extraction on a mixed solution obtained by soaking, then performing centrifugal separation, taking supernatant, and canning to obtain the fructus cannabis oil.
2. The method for extracting hemp seed oil by water extraction according to claim 1, wherein the temperature for constant temperature dewatering and drying is 50-80 ℃.
3. The method for extracting hemp seed oil by hydroextraction according to claim 1, wherein the hemp seed is pulverized so that the particles are maintained at 30 to 100 mesh.
4. The process for extracting hemp oil by hydroextraction of claim 1, wherein the solution used for the immersion treatment is an aqueous solution of ethanol.
5. The method for extracting hemp seed oil by water extraction according to claim 4, wherein the volume concentration of ethanol in the ethanol aqueous solution is 25 to 90%, and the time of the soaking treatment is 0.5 to 4 hours.
6. The method for extracting hemp seed oil by water extraction according to claim 1, wherein the ultrasonic treatment is carried out for 10 to 50min at 25 to 50 ℃ and 80 to 240W.
7. Hemp seed oil obtained by the aqueous extraction of hemp seed oil according to any one of claims 1 to 6.
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| CN202111292251.8A CN114015499A (en) | 2021-11-03 | 2021-11-03 | Hemp seed oil and its water-substituted extraction method |
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|---|---|---|---|---|
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| CN106833877A (en) * | 2017-02-10 | 2017-06-13 | 北京民幅农科技有限公司 | A kind of colding pressing squeezes the method that combining ultrasonic ripple method extracts linseed oil |
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| CN108998203A (en) * | 2018-07-24 | 2018-12-14 | 姚志宇 | A kind of method that ultrasound on extracting-squeezing combines extraction sesame oil |
-
2021
- 2021-11-03 CN CN202111292251.8A patent/CN114015499A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102311870A (en) * | 2011-08-30 | 2012-01-11 | 南昌大学 | Method for extracting tea oil, |
| CN104629902A (en) * | 2015-02-12 | 2015-05-20 | 江南大学 | Method for extracting maize germ oil assisted by ethyl alcohol and steam explosion |
| TW201735793A (en) * | 2016-04-01 | 2017-10-16 | 全輝生物醫學股份有限公司 | Camellia oil and preparing method thereof |
| CN105969511A (en) * | 2016-05-26 | 2016-09-28 | 安徽科技学院 | Sesame oil extraction method |
| CN106833877A (en) * | 2017-02-10 | 2017-06-13 | 北京民幅农科技有限公司 | A kind of colding pressing squeezes the method that combining ultrasonic ripple method extracts linseed oil |
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Non-Patent Citations (1)
| Title |
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