CN111979039A - Technological method for extracting tea seed oil by cold pressing - Google Patents
Technological method for extracting tea seed oil by cold pressing Download PDFInfo
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- CN111979039A CN111979039A CN202010940192.XA CN202010940192A CN111979039A CN 111979039 A CN111979039 A CN 111979039A CN 202010940192 A CN202010940192 A CN 202010940192A CN 111979039 A CN111979039 A CN 111979039A
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 239000010495 camellia oil Substances 0.000 title claims abstract description 34
- 238000003825 pressing Methods 0.000 title claims abstract description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000012535 impurity Substances 0.000 claims abstract description 37
- 229910052742 iron Inorganic materials 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 16
- 239000004575 stone Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000005496 tempering Methods 0.000 claims abstract description 8
- 239000004519 grease Substances 0.000 claims abstract description 5
- 241001122767 Theaceae Species 0.000 claims description 98
- 239000003921 oil Substances 0.000 claims description 32
- 235000019198 oils Nutrition 0.000 claims description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 claims description 24
- 239000010779 crude oil Substances 0.000 claims description 15
- 229930182558 Sterol Natural products 0.000 claims description 12
- 229930003427 Vitamin E Natural products 0.000 claims description 12
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 claims description 12
- 235000003702 sterols Nutrition 0.000 claims description 12
- 150000003432 sterols Chemical class 0.000 claims description 12
- 229940046009 vitamin E Drugs 0.000 claims description 12
- 235000019165 vitamin E Nutrition 0.000 claims description 12
- 239000011709 vitamin E Substances 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 9
- 239000013543 active substance Substances 0.000 claims description 6
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 6
- 235000013824 polyphenols Nutrition 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- YYGNTYWPHWGJRM-UHFFFAOYSA-N (6E,10E,14E,18E)-2,6,10,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaene Chemical compound CC(C)=CCCC(C)=CCCC(C)=CCCC=C(C)CCC=C(C)CCC=C(C)C YYGNTYWPHWGJRM-UHFFFAOYSA-N 0.000 claims description 5
- BHEOSNUKNHRBNM-UHFFFAOYSA-N Tetramethylsqualene Natural products CC(=C)C(C)CCC(=C)C(C)CCC(C)=CCCC=C(C)CCC(C)C(=C)CCC(C)C(C)=C BHEOSNUKNHRBNM-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- PRAKJMSDJKAYCZ-UHFFFAOYSA-N dodecahydrosqualene Natural products CC(C)CCCC(C)CCCC(C)CCCCC(C)CCCC(C)CCCC(C)C PRAKJMSDJKAYCZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 229940031439 squalene Drugs 0.000 claims description 5
- TUHBEKDERLKLEC-UHFFFAOYSA-N squalene Natural products CC(=CCCC(=CCCC(=CCCC=C(/C)CCC=C(/C)CC=C(C)C)C)C)C TUHBEKDERLKLEC-UHFFFAOYSA-N 0.000 claims description 5
- 229920005610 lignin Polymers 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 235000015097 nutrients Nutrition 0.000 abstract description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 235000021466 carotenoid Nutrition 0.000 description 1
- 150000001747 carotenoids Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 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
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
-
- 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
- C11B1/06—Production of fats or fatty oils from raw materials by pressing
-
- 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
- C11B3/00—Refining fats or fatty oils
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
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)
- Microbiology (AREA)
- Fats And Perfumes (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention discloses a process method for extracting tea seed oil by cold pressing, which comprises the following steps: 1. selecting seeds; 2. removing impurities; 3. removing stones; 4. peeling; 5. drying; 6. tempering; 7. removing iron; 8. squeezing at low temperature; 9. filtering; 10. storing; the whole treatment process of the invention adopts a pure physical process without adding chemical substances; the whole treatment process is carried out at the temperature lower than 100 ℃, so that harmful substances brought by high-temperature operation and damage to nutrient substances in the grease are effectively avoided; the process has the advantages of simple steps and simple operation, and reduces the production cost while improving the production sale rate.
Description
Technical Field
The invention belongs to the technical field of camellia oil extraction, and particularly relates to a technological method for extracting tea seed oil by cold pressing.
Background
The cold-pressed tea seed oil has pure natural characteristics, and the defects that crude oil produced by traditional hot pressing processing is dark in color and high in acid value, and the loss of bioactive substances (vitamin E, sterol, carotenoid and the like) in the oil material is large in the pressing process, so that the resource waste is avoided. The cold pressed finished oil has faint scent and natural flavor and light yellow color, completely retains the physiological active substances such as vitamin E, tea polyphenol, sterol and the like in the oil, and is a choice for healthy life.
At present, cold-pressed tea seed oil declared by various oil mills is extracted by pressing tea seeds which are not steamed and fried at high temperature, and actually, the tea seeds generate high temperature of more than 200 ℃ when being pressed at high pressure by an oil press, so that the cold-pressed tea seed oil cannot be named as the meaningful cold-pressed tea seed oil.
The process is a process method for extracting the tea seed oil by cold pressing in the real sense when the tea seed oil is pressed at the temperature of not more than 100 ℃ by the processes of husking, tempering and the like through an oil press with a special process.
Disclosure of Invention
The invention aims to solve the problems and provides a process method for extracting tea seed oil by cold pressing.
In order to realize the purpose, the invention adopts the technical scheme that: a process method for extracting tea seed oil by cold pressing comprises the following steps:
(1) selecting seeds: selecting tea seeds with complete shapes and full seeds;
(2) removing impurities: under a clean environment, removing large impurities and small impurities in the tea seeds by a double-layer vibrating screen, and removing internal slag dust by air suction and dust removal;
(3) removing stones: removing stones and shoulder stones which accompany the tea seeds subjected to impurity removal in the step (2);
(4) husking: crushing the tea seeds subjected to impurity removal and stone removal by a husking machine, and separating tea seed kernels from tea shells by wind power separation equipment;
(5) drying: placing the tea seed kernels obtained in the step (4) in a flat plate dryer, and drying the tea seed kernels by dry hot steam;
(6) tempering: according to the water content and the property of the tea seed kernels, the tea seeds are placed in a conditioner to heat or spray the water content of the tea seed kernels;
(7) iron removal: removing scrap iron, iron blocks and screws which are mixed in the tea seed kernels from the tea seeds in the step (6) through an iron remover;
(8) low-temperature squeezing: putting the tea seed kernels obtained in the step (7) into an oil press for grease pressing to obtain crude oil; the oil press controls the internal temperature of the pressing chamber through cooling circulating water;
(9) and (3) filtering: pumping the crude oil containing the residues into a secondary filter with multiple meshes by using a crude oil pump to obtain clear oil;
(10) and (3) storage: and pumping the obtained clear oil into an oil storage tank through a clear oil pump for storage.
Preferably, in the step (1), full tea seeds with the oil content of 25% -35% are selected.
Preferably, the impurity content of the step (2) after impurity removal is 0.1% -0.5%.
Preferably, in the step (4), the tea shells and the tea seed kernels are separated, the shell content of the tea seed kernels is 10% -15%, and the friction force of lignin in the barrel of the oil press can be reduced by reducing the shell content, so that the temperature in the barrel is favorably reduced.
Preferably, the hot steam is dried in the step (5), the drying temperature is 70-80 ℃, and the moisture content is 8-10%.
Preferably, the water sprayed in the step (6) is hot water, so that the tea seeds have the best elastic and plastic squeezing conditions, the temperature is 50-60 ℃ after tempering, and the moisture content is 6-8%.
Preferably, after coarse filtration and fine filtration of the tea seed crude oil containing dregs in the step (9), the healthiest tea seed oil retaining physiologically active substances such as vitamin E, tea polyphenol, sterol and the like is obtained, the impurity content is 0.01-0.05%, the vitamin E content is 50mg/100g-80mg/100g, squalene is 100 mg/100 g-150 mg/100g, and sterol is 300 mg/100 g-350 mg/100 g.
The invention has the beneficial effects that:
1. the whole treatment process adopts a pure physical process without adding chemical substances.
2. The whole treatment process is carried out at the temperature lower than 100 ℃, so that harmful substances brought by high-temperature operation and damage to nutrient substances in the grease are effectively avoided.
3. The process has the advantages of simple steps and simple operation, and reduces the production cost while improving the production sale rate.
Detailed Description
The present invention is described in detail below for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the description of the present invention is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
A process method for extracting tea seed oil by cold pressing comprises the following steps:
(1) selecting seeds: selecting tea seeds with complete shapes and full seeds;
(2) removing impurities: under a clean environment, removing large impurities and small impurities in the tea seeds by a double-layer vibrating screen, and removing internal slag dust by air suction and dust removal;
(3) removing stones: removing stones and shoulder stones which accompany the tea seeds subjected to impurity removal in the step (2);
(4) husking: crushing the tea seeds subjected to impurity removal and stone removal by a husking machine, and separating tea seed kernels from tea shells by wind power separation equipment;
(5) drying: placing the tea seed kernels obtained in the step (4) in a flat plate dryer, and drying the tea seed kernels by dry hot steam;
(6) tempering: according to the water content and the property of the tea seed kernels, the tea seeds are placed in a conditioner to heat or spray the water content of the tea seed kernels;
(7) iron removal: removing scrap iron, iron blocks and screws which are mixed in the tea seed kernels from the tea seeds in the step (6) through an iron remover;
(8) low-temperature squeezing: putting the tea seed kernels obtained in the step (7) into an oil press for grease pressing to obtain crude oil; the oil press controls the internal temperature of the pressing chamber through cooling circulating water;
(9) and (3) filtering: pumping the crude oil containing the residues into a secondary filter with multiple meshes by using a crude oil pump to obtain clear oil;
(10) and (3) storage: and pumping the obtained clear oil into an oil storage tank through a clear oil pump for storage.
In the step (1), the full tea seeds with the oil content of 25-35% are selected.
The impurity content of the step (2) after impurity removal is 0.1-0.5%.
And (4) separating the tea shells from the tea seed kernels, wherein the shell content of the tea seed kernels is 10% -15%, and the friction force of lignin in the barrel of the oil press can be reduced by reducing the shell content, so that the temperature in the barrel is favorably reduced.
And (3) drying the hot steam in the step (5), wherein the drying temperature is 70-80 ℃, and the water content is 8-10%.
The water sprayed in the step (6) is hot water, so that the tea seeds have the best elastic and plastic squeezing conditions, the temperature is 50-60 ℃ after tempering, and the water content is 6-8%.
After coarse filtration and fine filtration of the tea seed crude oil containing the dregs in the step (9), the healthiest tea seed oil retaining physiologically active substances such as vitamin E, tea polyphenol, sterol and the like is obtained, the impurity content is 0.01-0.05%, the vitamin E content is 50mg/100g-80mg/100g, the squalene content is 100 mg/100 g-150 mg/100g, and the sterol content is 300 mg/100 g-350 mg/100 g.
Example one
Selecting tea seeds with complete shapes and full seeds, removing impurities in the tea seeds in a clean environment, removing large impurities and small impurities in the tea seeds through a vibrating screen, removing internal slag dust through air suction and dust removal, removing stones mixed in the tea seeds, wherein the impurity content is 0.4%, placing the tea seeds with the impurities removed into a huller for hulling, separating tea shells from tea seed kernels, and wherein the hull content in the tea seed kernels is 10%; placing the tea seed kernels into a dryer for steam drying treatment, wherein the drying temperature is 75 ℃, and the water content is 9%; putting tea seed kernels into a conditioner and spraying hot water on the tea seed kernels, wherein the tea seed kernels have elasticity and plasticity, and squeezing conditions are adopted, the temperature is 55 ℃ after conditioning, and the water content is 6.5%; treating iron blocks, scrap iron and screws stored in the tea seed kernels by using an iron remover to ensure that the iron pieces influence the operation of equipment and the quality of the tea oil is ensured; placing the tea seed kernels subjected to iron removal in an oil press for low-temperature pressing, and adding cooling circulating water into a pressing chamber, wherein the temperature of the pressing chamber is 75 ℃, and the temperature of tea seed crude oil is 68 ℃; and performing rough filtration and fine filtration on the obtained crude tea seed oil to obtain the refined tea oil, wherein the refined tea oil contains the healthest tea seed oil containing physiologically active substances such as vitamin E, tea polyphenol, sterol and the like, the impurity content is 0.02%, the vitamin E content is 75mg/100g, the squalene is 110/100 g, and the sterol 320 mg/100 g.
Example two
Selecting tea seeds with complete shapes and full seeds, removing impurities in the tea seeds in a clean environment, removing large impurities and small impurities in the tea seeds through a vibrating screen, removing internal slag dust through air suction and dust removal, removing stones mixed in the tea seeds, wherein the impurity content is 0.3%, placing the tea seeds with the impurities removed into a huller for hulling, separating tea shells from tea seed kernels, and wherein the hull content in the tea seed kernels is 15%; placing the tea seed kernels into a dryer for steam drying treatment, wherein the drying temperature is 70 ℃, and the water content is 10%; putting tea seed kernels into a conditioner and spraying hot water on the tea seed kernels, wherein the tea seed kernels have elasticity and plasticity, and squeezing conditions are adopted, the temperature is 58 ℃ after conditioning, and the water content is 7.5%; treating iron blocks, scrap iron and screws stored in the tea seed kernels by using an iron remover to ensure that the iron pieces influence the operation of equipment and the quality of the tea oil is ensured; placing the tea seed kernels subjected to iron removal in an oil press for low-temperature pressing, and adding cooling circulating water into a pressing chamber, wherein the temperature of the pressing chamber is 85 ℃, and the temperature of the obtained tea seed crude oil is 80 ℃; and performing rough filtration and fine filtration on the obtained crude tea seed oil to obtain the refined tea oil, wherein the refined tea oil contains the healthest tea seed oil containing physiologically active substances such as vitamin E, tea polyphenol, sterol and the like, the impurity content is 0.03%, the vitamin E content is 70mg/100g, squalene is 100 mg/100g, and sterol 305 mg/100 g.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Any person skilled in the art should be able to substitute or change the technical solution of the present invention and its inventive concept within the technical scope of the present invention.
Claims (7)
1. A process method for extracting tea seed oil by cold pressing is characterized in that: the method comprises the following steps:
selecting seeds: selecting tea seeds with complete shapes and full seeds;
removing impurities: under a clean environment, removing large impurities and small impurities in the tea seeds by a double-layer vibrating screen, and removing internal slag dust by air suction and dust removal;
removing stones: removing stones and shoulder stones which accompany the tea seeds subjected to impurity removal in the step (2);
husking: crushing the tea seeds subjected to impurity removal and stone removal by a husking machine, and separating tea seed kernels from tea shells by wind power separation equipment;
drying: placing the tea seed kernels obtained in the step (4) in a flat plate dryer, and drying the tea seed kernels by dry hot steam;
tempering: according to the water content and the property of the tea seed kernels, the tea seeds are placed in a conditioner to heat or spray the water content of the tea seed kernels;
iron removal: removing scrap iron, iron blocks and screws which are mixed in the tea seed kernels from the tea seeds in the step (6) through an iron remover;
low-temperature squeezing: putting the tea seed kernels obtained in the step (7) into an oil press for grease pressing to obtain crude oil; the oil press controls the internal temperature of the pressing chamber through cooling circulating water;
and (3) filtering: pumping the crude oil containing the residues into a secondary filter with multiple meshes by using a crude oil pump to obtain clear oil;
and (3) storage: and pumping the obtained clear oil into an oil storage tank through a clear oil pump for storage.
2. The process method for extracting tea seed oil by cold pressing as claimed in claim 1, wherein the process method comprises the following steps: in the step (1), the full tea seeds with the oil content of 25-35% are selected.
3. The process method for extracting tea seed oil by cold pressing as claimed in claim 1, wherein the process method comprises the following steps: the impurity content of the step (2) after impurity removal is 0.1-0.5%.
4. The process method for extracting tea seed oil by cold pressing as claimed in claim 1, wherein the process method comprises the following steps: and (4) separating the tea shells from the tea seed kernels, wherein the shell content of the tea seed kernels is 10% -15%, and the friction force of lignin in the barrel of the oil press can be reduced by reducing the shell content, so that the temperature in the barrel is favorably reduced.
5. The process method for extracting tea seed oil by cold pressing as claimed in claim 1, wherein the process method comprises the following steps: and (3) drying the hot steam in the step (5), wherein the drying temperature is 70-80 ℃, and the water content is 8-10%.
6. The process method for extracting tea seed oil by cold pressing as claimed in claim 1, wherein the process method comprises the following steps: the water sprayed in the step (6) is hot water, so that the tea seeds have the best elastic and plastic squeezing conditions, the temperature is 50-60 ℃ after tempering, and the water content is 6-8%.
7. The process method for extracting tea seed oil by cold pressing as claimed in claim 1, wherein the process method comprises the following steps: after coarse filtration and fine filtration of the tea seed crude oil containing the dregs in the step (9), the healthiest tea seed oil retaining physiologically active substances such as vitamin E, tea polyphenol, sterol and the like is obtained, the impurity content is 0.01-0.05%, the vitamin E content is 50mg/100g-80mg/100g, the squalene content is 100 mg/100 g-150 mg/100g, and the sterol content is 300 mg/100 g-350 mg/100 g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010940192.XA CN111979039A (en) | 2020-09-09 | 2020-09-09 | Technological method for extracting tea seed oil by cold pressing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010940192.XA CN111979039A (en) | 2020-09-09 | 2020-09-09 | Technological method for extracting tea seed oil by cold pressing |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013651A (en) * | 2013-01-10 | 2013-04-03 | 南京财经大学 | Method for producing low-temperature cold-pressed and refined tea seed oil |
| CN106047473A (en) * | 2016-08-04 | 2016-10-26 | 江西省德义行油茶开发有限公司 | Production method for freshly-squeezed tea-seed oil |
| CN107254354A (en) * | 2017-07-03 | 2017-10-17 | 百色市金坤林业投资有限公司 | Tea oil method is produced in a kind of cold press of screw press |
| CN108865408A (en) * | 2018-07-03 | 2018-11-23 | 太仓市宝马油脂设备有限公司 | A kind of original odor type tea-seed oil production technology |
-
2020
- 2020-09-09 CN CN202010940192.XA patent/CN111979039A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013651A (en) * | 2013-01-10 | 2013-04-03 | 南京财经大学 | Method for producing low-temperature cold-pressed and refined tea seed oil |
| CN106047473A (en) * | 2016-08-04 | 2016-10-26 | 江西省德义行油茶开发有限公司 | Production method for freshly-squeezed tea-seed oil |
| CN107254354A (en) * | 2017-07-03 | 2017-10-17 | 百色市金坤林业投资有限公司 | Tea oil method is produced in a kind of cold press of screw press |
| CN108865408A (en) * | 2018-07-03 | 2018-11-23 | 太仓市宝马油脂设备有限公司 | A kind of original odor type tea-seed oil production technology |
Non-Patent Citations (1)
| Title |
|---|
| 胡健华等: "脱壳冷榨生产纯天然油茶籽油", 《中国油脂》 * |
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Application publication date: 20201124 |