CN106857887A - A kind of extracting method of cottonseed oil - Google Patents
A kind of extracting method of cottonseed oil Download PDFInfo
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- CN106857887A CN106857887A CN201710180134.XA CN201710180134A CN106857887A CN 106857887 A CN106857887 A CN 106857887A CN 201710180134 A CN201710180134 A CN 201710180134A CN 106857887 A CN106857887 A CN 106857887A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D9/00—Other edible oils or fats, e.g. shortenings, cooking oils
- A23D9/02—Other edible oils or fats, e.g. shortenings, cooking oils characterised by the production or working-up
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Abstract
The present invention discloses a kind of extracting method of cottonseed oil, and cottonseed sequentially passes through following steps：Get the raw materials ready, separation of hull from kernel, crushing, traditional Chinese medicine extraction, enzymolysis, fermentation, filtering, the step such as sterilization, you can the cottonseed oil is obtained；The preparation method is adapted to promote simply, to environment and equipment requirement than relatively low, low cost；With the method for enzymolysis, the extraction rate of cottonseed oil is accelerated；Cottonseed mixed liquor after enzymolysis is fermented, sterilization processing, enriches the nutritive value of cottonseed oil.
Description
Technical field
The invention belongs to cottonseed processing technical field, and in particular to a kind of extracting method of cottonseed oil.
Background technology
At present, cotton is one of main industrial crops of China, and yield occupies first place in the world, and cottonseed is the seed of cotton, whole
Seed oil-containing 10~15%, oil-containing 20~30% in cotton benevolence is one of big oil plant in the world nine.
Cottonseed oil is the oil squeezed with cotton seed, and refined cottonseed oil contains palm fibre typically in orange-yellow or brown in aliphatic acid
Palmitic acid acid 21.6-24.8%, stearic acid 1.9-2.4%, arachidic acid 0-0.1%, oleic acid 18.0-30.7%, linoleic acid 44.9-
55.0%, the cotton edible vegetable oil after refining removes the noxious materials such as gossypol, can human consumption.Containing a large amount of needed by human in cotton edible vegetable oil
Aliphatic acid, most preferably with animal tallow mixed edible because the content of cotton edible vegetable oil Linoleic acid is especially more, can effectively suppress blood
Middle cholesterol rises, and safeguards the health of human body.Recently as the fast development of Chinese oil consumption figure and feedstuff industry, cottonseed
The demand of deep processed product cottonseed oil is also increased.
But the extracting method of current cottonseed oil is generally cold-press, and the cottonseed oil nutrient content that cold-press is obtained is high, but
Efficiency is too low, it is therefore desirable to a kind of new cottonseed oil extracting method, and extraction rate is fast, process is simple.
The content of the invention
The invention provides a kind of extracting method of cottonseed oil, extraction rate is fast, and extraction process is simple, and recovery rate is high, fits
Close and promote.
In order to solve the problems, such as prior art, adopt the following technical scheme that：
A kind of extracting method of cottonseed oil of the invention, comprises the following steps：
（1）Get the raw materials ready：Cottonseed needed for collecting, and decontamination treatment is carried out to cottonseed, it is small in cottonseed by being mixed in first with wind-force
Granule foreign is rejected；Then the bulky grain in screen cloth removal cottonseed is recycled, it is suitable with cottonseed weight, what wind-force cannot be removed
Impurity, takes the root of large-flowered skullcap, sanchi flower, levisticum, motherwort, semen litchi, Flos Magnoliae Officinalis, Bitter Bamboo Leaf drying, removal of impurities, well mixed；
（2）Separation of hull from kernel：Cottonseed is put into after decorticator peels off, then separation of hull from kernel is carried out by angle sieve and obtain cotton benevolence；
（3）Crush：Cotton benevolence is cleaned up, pulverizer crushing is put into, 100~200 mesh are crossed, cotton benevolence powder is obtained standby；
（4）Traditional Chinese medicine extraction：By step（1）Well mixed Chinese medicine adds 30~50 points of the intense fire of water elder generation of 5~7 times of Chinese medicine weight
Clock, then be cooked by slow fire 20~30 minutes, filter, obtain filtrate, i.e. Chinese medicine extract；
（5）Enzymolysis：To the water that 4~6 times of cotton seed meal weight is added in cotton seed meal, it is well mixed, is warming up to 50~55 DEG C, Ran Houbao
Temperature, adds the complex enzyme of cotton seed meal weight 0.06%~0.08%, and 50~55 DEG C of insulations are digested 5~6 hours, add cotton seed meal weight
0.01%~0.02% cellulose element enzyme, 40~50 DEG C digest 2~3 hours, obtain cottonseed enzymolysis mixed liquor；
（6）Fermentation：To adding lactic acid bacteria in cottonseed mixed liquor, it is well mixed, is placed in 40~42 DEG C of ferment at constant temperature 2~3 hours, plus
Enter saccharomycete, be well mixed, be placed in 20~22 DEG C of ferment at constant temperature 5~10 hours, must ferment cottonseed mixed liquor；
（7）Filtering：Fermentation cottonseed mixed liquor is filtered, filter residue is obtained, to the Chinese medicine that cottonseed weight 0.2%~0.4% is added in filter residue
Extract solution, is well mixed, and is subsequently adding ethanol, is placed in 40~50 DEG C, 15~20kHZ ultrasonic extractions 30~40 minutes, and filtering is closed
And all filtrates, it is placed in the rectifier unit that temperature is 50~55 DEG C, vacuum is 100~200Pa and distills, until volume is no longer
Change, obtain cottonseed oil；
（8）It is sterilized：Cottonseed oil is placed in the UV environment that wavelength is 250~260nm sterilized 2~3 hours, you can obtain described
Cottonseed oil.
Preferably, it is 3 to state the root of large-flowered skullcap, sanchi flower, levisticum, motherwort, semen litchi, Flos Magnoliae Officinalis, the weight ratio of Bitter Bamboo Leaf:2:1:
3:2:1:2。
Preferably, the step（4）Middle complex enzyme includes protease and a~amylase, and the protease and a~starch
Enzyme is according to 0.5~1.2:0.4~0.7 ratio mixing.
Preferably, step is stated（6）Middle lactic acid bacteria includes following components：13 ~ 15 parts of lactobacillus acidophilus, Bifidobacterium 12 ~ 14
Part, 9 ~ 11 parts of German-style lactobacillus, 6 ~ 8 parts of streptococcus thermophilus, 5 ~ 7 parts of Bu Shi lactobacillus, addition are the 0.2% of cotton seed meal weight
~0.5%.
Preferably, the step（6）The addition of middle saccharomycete is the 0.1%~0.3% of cotton seed meal weight.
Preferably, the ethanol is absolute ethyl alcohol, and addition is 3~5 times of filter residue weight.
Preferably, the ultraviolet wavelength 253nm, sterilizing time 2 hours, when ultraviolet wavelength is 253nm, sterilizing ability
It is most strong.
Compared with prior art, it has the advantages that the present invention：
A kind of extracting method of cottonseed oil that the present invention is provided, method is simple, to environment and equipment requirement than relatively low, low cost,
It is adapted to promote；Cottonseed is digested with complex enzyme, decomposes the structure of macromolecular, beneficial to the release of small molecule nutritional ingredient, plus
The fast extraction rate of cottonseed oil, the existing level that compares improves 20%；Cottonseed mixed liquor after enzymolysis is through lactic acid bacteria and yeast
Bacterium double fermentation, adds Chinese medicine extract again, improves the nutritive value of cottonseed oil；Cottonseed oil is carried using absolute ethyl alcohol ultrasound
Take so that the recovery rate of cottonseed oil is higher than prior art 5%, improves income；Using ultraviolet sterilization, it is ensured that cottonseed
The security of oil.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without
In limitation the scope of the present invention.
Embodiment 1
The present embodiment is related to a kind of extracting method of cottonseed oil, comprises the following steps：
（1）Get the raw materials ready：Cottonseed needed for collecting, and decontamination treatment is carried out to cottonseed, it is small in cottonseed by being mixed in first with wind-force
Granule foreign is rejected；Then the bulky grain in screen cloth removal cottonseed is recycled, it is suitable with cottonseed weight, what wind-force cannot be removed
Impurity, is 3 by weight:2:1:3:2:1:2 weigh the root of large-flowered skullcap, sanchi flower, levisticum, motherwort, semen litchi, Flos Magnoliae Officinalis, hardship successively
It is leaf of bamboo drying, removal of impurities, well mixed；
（2）Separation of hull from kernel：Cottonseed is put into after decorticator peels off, then separation of hull from kernel is carried out by angle sieve and obtain cotton benevolence；
（3）Crush：Cotton benevolence is cleaned up, pulverizer crushing is put into, 100 mesh sieves are crossed, cotton benevolence powder is obtained standby；
（4）Traditional Chinese medicine extraction：By step（1）Well mixed Chinese medicine adds the first intense fire of the water of 5 times of Chinese medicine weight 30 minutes, then slow fire
Decoct 20 minutes, filtering obtains filtrate, i.e. Chinese medicine extract；
（5）Enzymolysis：To the water that 4 times of cotton seed meal weight is added in cotton seed meal, it is well mixed, is warming up to 50 DEG C, be then incubated, adds
The complex enzyme of cotton seed meal weight 0.06%, complex enzyme includes protease and a~amylase, and the protease and a~amylase are pressed
It is 0.5 according to weight portion:0.4 ratio mixing, 50 DEG C of insulations are digested 5 hours, add the cellulose element of cotton seed meal weight 0.01%
Enzyme, 40 DEG C digest 2 hours, obtain cottonseed enzymolysis mixed liquor；
（6）Fermentation：To adding lactic acid bacteria in cottonseed mixed liquor, it is well mixed, is placed in 40~42 DEG C of ferment at constant temperature 2 hours, lactic acid
Bacterium bag includes following components：13 parts of lactobacillus acidophilus, 12 parts of Bifidobacterium, 9 parts of German-style lactobacillus, 6 parts of streptococcus thermophilus, Bu Shi breasts
5 parts of bacillus, addition is the 0.2% of cotton seed meal weight, adds the saccharomycete of cotton seed meal weight 0.1%, is well mixed, and is placed in 20
~22 DEG C of ferment at constant temperature 5 hours, must ferment cottonseed mixed liquor；
（7）Filtering：Will fermentation cottonseed mixed liquor filtering, obtain filter residue, to added in filter residue cottonseed weight 0.2%~traditional Chinese medicine extraction
Liquid, is well mixed, and is subsequently adding 3 times of filter residue weight of absolute ethyl alcohol, is placed in 40 DEG C, 15kHZ ultrasonic extractions 40 minutes, mistake
Filter, merges all filtrates, is placed in the rectifier unit that temperature is 50 DEG C, vacuum is 100~200Pa and distills, until volume is not
Change again, obtain cottonseed oil；
（8）It is sterilized：Cottonseed oil is placed in sterilized 3 hours in the UV environment that wavelength is 250nm, you can obtain the cottonseed oil.
Compared to the prior art cottonseed oil extraction rate improves 15% in the present embodiment, and recovery rate improves 3%.
Embodiment 2
（1）Get the raw materials ready：Cottonseed needed for collecting, and decontamination treatment is carried out to cottonseed, it is small in cottonseed by being mixed in first with wind-force
Granule foreign is rejected；Then the bulky grain in screen cloth removal cottonseed is recycled, it is suitable with cottonseed weight, what wind-force cannot be removed
Impurity, is 3 by weight:2:1:3:2:1:2 weigh the root of large-flowered skullcap, sanchi flower, levisticum, motherwort, semen litchi, Flos Magnoliae Officinalis, hardship successively
It is leaf of bamboo drying, removal of impurities, well mixed；
（2）Separation of hull from kernel：Cottonseed is put into after decorticator peels off, then separation of hull from kernel is carried out by angle sieve and obtain cotton benevolence；
（3）Crush：Cotton benevolence is cleaned up, pulverizer crushing is put into, 200 mesh are crossed, cotton benevolence powder is obtained standby；
（4）Traditional Chinese medicine extraction：By step（1）Well mixed Chinese medicine adds the first intense fire of the water of 7 times of Chinese medicine weight 50 minutes, then slow fire
Decoct 30 minutes, filtering obtains filtrate, i.e. Chinese medicine extract；
（5）Enzymolysis：To the water that 6 times of cotton seed meal weight is added in cotton seed meal, it is well mixed, is warming up to 55 DEG C, be then incubated, adds
The complex enzyme of cotton seed meal weight 0.08%, complex enzyme includes protease and a~amylase, and the protease and a~amylase are pressed
It is 1.2 according to weight portion:0.7 ratio mixing, 55 DEG C of insulations are digested 6 hours, add the cellulose element of cotton seed meal weight 0.02%
Enzyme, 50 DEG C digest 3 hours, obtain cottonseed enzymolysis mixed liquor；
（6）Fermentation：To adding lactic acid bacteria in cottonseed mixed liquor, it is well mixed, is placed in 40~42 DEG C of ferment at constant temperature 3 hours, lactic acid
Bacterium bag includes following components：15 parts of lactobacillus acidophilus, 14 parts of Bifidobacterium, 11 parts of German-style lactobacillus, 8 parts of streptococcus thermophilus, Bu Shi
7 parts of lactobacillus, addition is the 0.5% of cotton seed meal weight, adds the saccharomycete of cotton seed meal weight 0.3%, is well mixed, and is placed in
20~22 DEG C of ferment at constant temperature 10 hours, must ferment cottonseed mixed liquor；
（7）Filtering：Fermentation cottonseed mixed liquor is filtered, filter residue is obtained, to the Chinese medicine extract that cottonseed weight 0.4% is added in filter residue,
It is well mixed, 5 times of filter residue weight of absolute ethyl alcohol is subsequently adding, 50 DEG C, 20kHZ ultrasonic extractions 40 minutes are placed in, filtering is closed
And all filtrates, it is placed in the rectifier unit that temperature is 55 DEG C, vacuum is 100~200Pa and distills, no longer become to volume
Change, obtain cottonseed oil；
（8）It is sterilized：Cottonseed oil is placed in sterilized 2.5 hours in the UV environment that wavelength is 260nm, you can obtain the cottonseed
Oil.
Compared to the prior art cottonseed oil extraction rate improves 18% in the present embodiment, and recovery rate improves 4%.
Embodiment 3
（1）Get the raw materials ready：Cottonseed needed for collecting, and decontamination treatment is carried out to cottonseed, it is small in cottonseed by being mixed in first with wind-force
Granule foreign is rejected；Then the bulky grain in screen cloth removal cottonseed is recycled, it is suitable with cottonseed weight, what wind-force cannot be removed
Impurity, is 3 by weight:2:1:3:2:1:2 weigh the root of large-flowered skullcap, sanchi flower, levisticum, motherwort, semen litchi, Flos Magnoliae Officinalis, hardship successively
It is leaf of bamboo drying, removal of impurities, well mixed；
（2）Separation of hull from kernel：Cottonseed is put into after decorticator peels off, then separation of hull from kernel is carried out by angle sieve and obtain cotton benevolence；
（3）Crush：Cotton benevolence is cleaned up, pulverizer crushing is put into, 150 mesh sieves are crossed, cotton benevolence powder is obtained standby；
（4）Traditional Chinese medicine extraction：By step（1）Well mixed Chinese medicine adds the first intense fire of the water of 5~7 times of Chinese medicine weight 35 minutes, then
It is cooked by slow fire 25 minutes, filters, obtains filtrate, i.e. Chinese medicine extract；
（5）Enzymolysis：To the water that 5 times of cotton seed meal weight is added in cotton seed meal, it is well mixed, is warming up to 52 DEG C, be then incubated, adds
The complex enzyme of cotton seed meal weight 0.07%, complex enzyme includes protease and a~amylase, and the protease and a~amylase are pressed
It is 1.1 according to weight portion:0.6 ratio mixing, 52 DEG C of insulations are digested 5.5 hours, add the cellulose element of cotton seed meal weight 0.01%
Enzyme, 45 DEG C digest 2 hours, obtain cottonseed enzymolysis mixed liquor；
（6）Fermentation：To adding lactic acid bacteria in cottonseed mixed liquor, it is well mixed, is placed in 40~42 DEG C of ferment at constant temperature 3 hours, lactic acid
Bacterium bag includes following components：14 parts of lactobacillus acidophilus, 13 parts of Bifidobacterium, 10 parts of German-style lactobacillus, 7 parts of streptococcus thermophilus, Bu Shi
6 parts of lactobacillus, addition is the 0.4% of cotton seed meal weight, adds the saccharomycete of cotton seed meal weight 0.2%, is well mixed, and is placed in
20~22 DEG C of ferment at constant temperature 8 hours, must ferment cottonseed mixed liquor；
（7）Filtering：Fermentation cottonseed mixed liquor is filtered, filter residue is obtained, to the Chinese medicine extract that cottonseed weight 0.3% is added in filter residue,
It is well mixed, 4 times of filter residue weight of absolute ethyl alcohol is subsequently adding, 45 DEG C, 17kHZ ultrasonic extractions 35 minutes are placed in, filtering is closed
And all filtrates, it is placed in the rectifier unit that temperature is 52 DEG C, vacuum is 100~200Pa and distills, until volume no longer occurs
Change, obtains cottonseed oil；
（8）It is sterilized：Cottonseed oil is placed in sterilized 2 hours in the UV environment that wavelength is 253nm, you can obtain the cottonseed oil.
Compared to the prior art cottonseed oil extraction rate improves 20% in the present embodiment, and recovery rate improves 5%.
Be can be seen that from above-described embodiment, the extracting method of cottonseed oil of the present invention, extraction rate and recovery rate are
Improve.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (7)
1. a kind of extracting method of cottonseed oil, it is characterised in that comprise the following steps：
（1）Get the raw materials ready：Cottonseed needed for collecting, and decontamination treatment is carried out to cottonseed, it is small in cottonseed by being mixed in first with wind-force
Granule foreign is rejected；Then the bulky grain in screen cloth removal cottonseed is recycled, it is suitable with cottonseed weight, what wind-force cannot be removed
Impurity, takes the root of large-flowered skullcap, sanchi flower, levisticum, motherwort, semen litchi, Flos Magnoliae Officinalis, Bitter Bamboo Leaf drying, removal of impurities, well mixed；
（2）Separation of hull from kernel：Cottonseed is put into after decorticator peels off, then separation of hull from kernel is carried out by angle sieve and obtain cotton benevolence；
（3）Crush：Cotton benevolence is cleaned up, pulverizer crushing is put into, 100~200 mesh are crossed, cotton benevolence powder is obtained standby；
（4）Traditional Chinese medicine extraction：By step（1）Well mixed Chinese medicine adds 30~50 points of the intense fire of water elder generation of 5~7 times of Chinese medicine weight
Clock, then be cooked by slow fire 20~30 minutes, filter, obtain filtrate, i.e. Chinese medicine extract；
（5）Enzymolysis：To the water that 4~6 times of cotton seed meal weight is added in cotton seed meal, it is well mixed, is warming up to 50~55 DEG C, Ran Houbao
Temperature, adds the complex enzyme of cotton seed meal weight 0.06%~0.08%, and 50~55 DEG C of insulations are digested 5~6 hours, add cotton seed meal weight
0.01%~0.02% cellulose element enzyme, 40~50 DEG C digest 2~3 hours, obtain cottonseed enzymolysis mixed liquor；
（6）Fermentation：To adding lactic acid bacteria in cottonseed mixed liquor, it is well mixed, is placed in 40~42 DEG C of ferment at constant temperature 2~3 hours, plus
Enter saccharomycete, be well mixed, be placed in 20~22 DEG C of ferment at constant temperature 5~10 hours, must ferment cottonseed mixed liquor；
（7）Filtering：Fermentation cottonseed mixed liquor is filtered, filter residue is obtained, to the Chinese medicine that cottonseed weight 0.2%~0.4% is added in filter residue
Extract solution, is well mixed, and is subsequently adding ethanol, is placed in 40~50 DEG C, 15~20kHZ ultrasonic extractions 30~40 minutes, and filtering is closed
And all filtrates, it is placed in the rectifier unit that temperature is 50~55 DEG C, vacuum is 100~200Pa and distills, until volume is no longer
Change, obtain cottonseed oil；
（8）It is sterilized：Cottonseed oil is placed in the UV environment that wavelength is 250~260nm sterilized 2~3 hours, you can obtain described
Cottonseed oil.
2. the extracting method of cottonseed oil according to claim 1, it is characterised in that the root of large-flowered skullcap, sanchi flower, levisticum, benefit are female
Grass, semen litchi, Flos Magnoliae Officinalis, the weight ratio of Bitter Bamboo Leaf are 3:2:1:3:2:1:2.
3. the extracting method of cottonseed oil according to claim 1, it is characterised in that the step（4）Middle complex enzyme includes egg
White enzyme and a~amylase, and the protease and a~amylase are according to 0.5~1.2:0.4~0.7 ratio mixing.
4. the extracting method of cottonseed oil according to claim 1, it is characterised in that the step（6）Middle lactic acid bacteria include with
Lower component：13 ~ 15 parts of lactobacillus acidophilus, 12 ~ 14 parts of Bifidobacterium, 9 ~ 11 parts of German-style lactobacillus, 6 ~ 8 parts of streptococcus thermophilus, cloth
5 ~ 7 parts of family name's lactobacillus, addition is the 0.2%~0.5% of cotton seed meal weight.
5. the extracting method of cottonseed oil according to claim 1, it is characterised in that the step（6）The addition of middle saccharomycete
Measure is the 0.1%~0.3% of cotton seed meal weight.
6. the extracting method of cottonseed oil according to claim 1, it is characterised in that the ethanol is absolute ethyl alcohol, addition
It is 3~5 times of filter residue weight.
7. the extracting method of cottonseed oil according to claim 1, it is characterised in that the ultraviolet wavelength 253nm, when sterilized
Between 2 hours.
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Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107518093A (en) * | 2017-09-26 | 2017-12-29 | 界首市致富家庭农场 | A kind of method of walnut oil highly-efficient processing |
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| CN102911784A (en) * | 2012-11-13 | 2013-02-06 | 东北农业大学 | Extraction method of cottonseed oil |
| CN103374456A (en) * | 2012-04-20 | 2013-10-30 | 东北林业大学 | Method for extracting vegetable oil through microbiological fermentation |
| CN103461539A (en) * | 2013-09-10 | 2013-12-25 | 滁州金恒油脂工业有限公司定远县金恒油厂 | Method for preparing healthcare cottonseed oil with tea flavor |
| CN104140886A (en) * | 2014-07-14 | 2014-11-12 | 和县绿源油脂有限公司 | Extraction method of cottonseed oil |
| CN106047468A (en) * | 2016-08-24 | 2016-10-26 | 晨光生物科技集团股份有限公司 | Extraction method of cottonseed oil |
| CN106367201A (en) * | 2016-10-22 | 2017-02-01 | 刘振 | Fermentation and extraction method for pumpkin seed oil |
-
2017
- 2017-03-24 CN CN201710180134.XA patent/CN106857887A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374456A (en) * | 2012-04-20 | 2013-10-30 | 东北林业大学 | Method for extracting vegetable oil through microbiological fermentation |
| CN102911784A (en) * | 2012-11-13 | 2013-02-06 | 东北农业大学 | Extraction method of cottonseed oil |
| CN103461539A (en) * | 2013-09-10 | 2013-12-25 | 滁州金恒油脂工业有限公司定远县金恒油厂 | Method for preparing healthcare cottonseed oil with tea flavor |
| CN104140886A (en) * | 2014-07-14 | 2014-11-12 | 和县绿源油脂有限公司 | Extraction method of cottonseed oil |
| CN106047468A (en) * | 2016-08-24 | 2016-10-26 | 晨光生物科技集团股份有限公司 | Extraction method of cottonseed oil |
| CN106367201A (en) * | 2016-10-22 | 2017-02-01 | 刘振 | Fermentation and extraction method for pumpkin seed oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107518093A (en) * | 2017-09-26 | 2017-12-29 | 界首市致富家庭农场 | A kind of method of walnut oil highly-efficient processing |
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