CN104531344A - Method for producing walnut oil - Google Patents
Method for producing walnut oil Download PDFInfo
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- CN104531344A CN104531344A CN201410832703.0A CN201410832703A CN104531344A CN 104531344 A CN104531344 A CN 104531344A CN 201410832703 A CN201410832703 A CN 201410832703A CN 104531344 A CN104531344 A CN 104531344A
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- 235000019498 Walnut oil Nutrition 0.000 title claims abstract description 40
- 239000008170 walnut oil Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000003921 oil Substances 0.000 claims abstract description 74
- 235000019198 oils Nutrition 0.000 claims abstract description 74
- 241000758789 Juglans Species 0.000 claims abstract description 66
- 235000009496 Juglans regia Nutrition 0.000 claims abstract description 66
- 235000020234 walnut Nutrition 0.000 claims abstract description 66
- 239000000843 powder Substances 0.000 claims abstract description 44
- 239000002994 raw material Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000002386 leaching Methods 0.000 claims abstract description 18
- 239000001273 butane Substances 0.000 claims abstract description 17
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims abstract description 17
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000005406 washing Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 239000002904 solvent Substances 0.000 claims description 31
- 239000010779 crude oil Substances 0.000 claims description 30
- 241000196324 Embryophyta Species 0.000 claims description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 18
- 238000001704 evaporation Methods 0.000 claims description 16
- 230000008020 evaporation Effects 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 15
- 238000004332 deodorization Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 14
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000000605 extraction Methods 0.000 claims description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 235000013305 food Nutrition 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 6
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract description 2
- 235000016709 nutrition Nutrition 0.000 abstract description 2
- 230000001877 deodorizing effect Effects 0.000 abstract 1
- 238000004807 desolvation Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 238000005352 clarification Methods 0.000 description 4
- 239000002932 luster Substances 0.000 description 4
- 150000002978 peroxides Chemical class 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 235000000053 special nutrition Nutrition 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
-
- 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
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
-
- 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
-
- 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
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/04—Refining fats or fatty oils by chemical reaction with acids
-
- 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
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/06—Refining fats or fatty oils by chemical reaction with bases
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Fats And Perfumes (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The invention discloses a process method for producing walnut oil by using walnut powder as a raw material. The method comprises the steps of sequentially cleaning, leaching, squeezing, filtering, degumming, deacidifying, washing and deodorizing the walnut powder raw material to prepare the finished product walnut oil. According to the method, the leaching process is performed before the squeezing process, so that high oil content, few crude fibers and other disadvantageous factors including difficulty in directly squeezing of the walnut powder can be avoided; a butane leaching method under an undercritical condition is adopted in the leaching step, so that desolvation is easy, and few product nutritional ingredients are lost. The method is simple in process and convenient to operate, and the produced walnut oil product completely accords with the index of high-grade oil specification in national standard, and the product quality of the walnut oil is guaranteed.
Description
Technical field
The present invention relates to a kind of production method of edible oil, especially a kind of is raw material with walnut powder, produces the method for walnut oil.
Background technology
Current, along with the raising of people's living standard, be grow with each passing day to the demand of little kind oil plant grease, though little kind oil is containing special nutrition finished product, raw material is the byproduct producing other products.Walnut has been that in common knowledge the eating of people can be benefited to the brain of people, and walnut oil is especially by most people is favored.Due to the selling at exorbitant prices of walnut kernel, the raw materials for production of walnut oil mainly adopt the byproduct after processing walnut kernel, and the walnut powder namely sorted after walnut kernel is raw material.
At present, the production of walnut oil mainly adopts milling process and lixiviation process two kinds of extraction processes.Walnut powder oil length is all between 40 ~ 60%, and available direct squeezing or lixiviation process are produced, but owing to containing robust fibre hardly in walnut powder, as directly squeezing can cause oil should not be separated with the dregs of fat.Coarse-fibred material is contained in some enterprises in the feed adding portion, as materials such as rice chaff, makes the oil of squeezing and the dregs of fat be easy to be separated.Cake after squeezing carries oil carrying out leaching through No. six solvent oils, but this process equals to add raw material to production, too increases production cost simultaneously.And the working condition temperature of No. six solvent oils is all high, easily make the nutrition leak of walnut oil product.Because raw material oleaginousness is too high, directly can not pulverizing, as directly extracted, a large amount of Residual oil will certainly be had in the dregs of rice, increase production cost.
Therefore, for ensureing quality product, production cost, the to the full extent nutritive ingredient of retained product is reduced.Squeezing and the extract technology problem of walnut oil must be solved.
Summary of the invention
It is the Technology of raw material production walnut oil that the technical problem to be solved in the present invention is to provide a kind of being beneficial to walnut powder.
For solving the problems of the technologies described above, the technical solution used in the present invention is: walnut powder raw material, successively through cleaning, leaching, squeeze, filter, come unstuck depickling, washing, deodorization procedures, obtains finished product walnut oil.
In leaching operation of the present invention, subcritical butane is adopted to extract.
Concrete steps of the present invention are as follows:
(1) clean: raw material, through screening, is removed solid impurity, obtained walnut powder raw material;
(2) leach: under undercritical conditions, with butane solvent, lixiviate is carried out to walnut powder raw material, obtain the mixture of solvent and oil respectively, leach walnut powder; The mixture of solvent and oil enters evaporation mixer, after evaporation recycling design, obtains Extractive crudeoil;
(3) squeeze: adopt the oil press zhai of controlled pressing temperature processed to squeeze leaching walnut powder, obtain walnut crude oil, pressing temperature is not higher than 80 DEG C, and pressure is 50 ~ 60Mpa;
(4) filter: walnut crude oil adopts 3927(ciphering type) filter-cloth filtering;
(5) to come unstuck depickling: the walnut crude oil after filtering is warming up to 35 ~ 45 DEG C together with Extractive crudeoil, add the food grade phosphoric acid that oil weighs 0.5 ~ 1.5%, rapid stirring 10 ~ 20 minutes, then add sodium hydroxide solution depickling, stir, quiescent setting, go out after precipitation, obtain oil plant;
(6) wash: the oil plant after depickling of coming unstuck is warming up to 80 ~ 85 DEG C, adds 90 ~ 95 DEG C of hot water of oil plant weight 8 ~ 10%, stir, discharge water after static 30 ~ 50 minutes, repeat said process 1 ~ 3 time;
(7) deodorization: the oil plant after washing 170 ~ 200 DEG C, vacuum tightness is less than deodorization under the condition of 300Pa, obtains finished product walnut oil.
In leaching operation of the present invention, walnut powder raw material and butane solvent quality are than being 1:1.5 ~ 2.5, and-0.07 ~-0.09Mpa, temperature is 35 ~ 47 DEG C, and extraction time is 30 ~ 45 minutes.
Walnut powder raw material of the present invention is the walnut powder that diameter is not more than 2mm.
The mixture of step of the present invention (2) solvent and oil enters evaporation mixer, and evaporation recovering condition is: temperature 30 ~ 47 DEG C ,-0.05 ~-0.09Mpa.
Step of the present invention (5) concentration of sodium hydroxide solution is 10-30wt%, and add-on is determined according to actual acid number.
Walnut oil obtained by present invention process can reach the primary oil index request that GB/T 22327-2008 " walnut oil " specifies.
Adopt the beneficial effect that technique scheme produces:
1, first leach in the present invention, then squeeze, leach again by traditional first squeezing and carry out technique exchange, owing to having leached amount of grease, squeezing in occur due to oil-containing not too high and formed mashed prod.
2, leach the subcritical low-temp extraction of employing, extraction temperature is low; Squeezing adopts temperature controllable oil press zhai to carry out low temperature pressing, all decreases the loss of product nutritive ingredient.
3, the boiling point of butane solvent is low, is beneficial to removing of solvent in product.Be that product is molten residual low, quality is better.
4, extract technology of the present invention adopts butane solvent low-temp extraction, avoids high temperature and leaches the phenomenon generation that product colour is deepened; And squeezing adopts low temperature pressing method, the high temperature produced when avoiding the squeezing of plain press method makes product colour shade, the situation generation that taste is bitter.
5, present invention process is simple, and easy to operate, the walnut oil yield first leaching re-pressing and extract can reach more than 95%, can improve 5 percentage points than traditional technology.The processed oil produced meets the primary oil index specified in national standard completely, ensure that the quality product of walnut oil.
Embodiment
embodiment 1
The production method of a kind of walnut oil of the present invention is undertaken by following technique:
1) clean: 1000 kilograms of 1.8mm walnut powders are cleaned and directly entered batch extractor afterwards;
2) leach: under undercritical conditions, carry out lixiviate with butane solvent to walnut powder raw material, walnut powder raw material and butane solvent quality are than being 1:1.5,-0.08Mpa, temperature is 40 DEG C, and extraction time is 35 minutes, obtain the mixture of solvent and oil respectively, leach walnut powder; The mixture of solvent and oil enters evaporation mixer, temperature 45 C, under-0.085Mpa condition, after evaporation recycling design, obtains Extractive crudeoil;
3) squeeze: adopt the oil press zhai of controlled pressing temperature processed to squeeze leaching walnut powder, obtain walnut crude oil, pressing temperature 75 DEG C, pressure is 60Mpa;
4) filter: walnut crude oil adopts 3927(ciphering type) filter-cloth filtering;
5) to come unstuck depickling: the walnut crude oil after filtering is warming up to 40 DEG C together with Extractive crudeoil, add the food grade phosphoric acid that oil weighs 1.5%, rapid stirring 15 minutes, then add the depickling of 10wt% sodium hydroxide solution, stir, quiescent setting, go out after precipitation, obtain oil plant;
6) wash: the oil plant after depickling of coming unstuck is warming up to 80 DEG C, adds 90 DEG C of hot water of oil plant weight 8%, stir, discharge water after static 40 minutes, repeat said process 3 times;
7) deodorization: the oil plant after washing, 180 DEG C, deodorization under the condition of vacuum tightness 200Pa, obtains finished product walnut oil.
Obtained processed oil index:
Color and luster: yellow 20, red 1.5; Transparency: clarification, transparent; Moisture and volatile matter content: 0.05%; Insoluble impurities: 0.02%; Acid number: 0.2KOHmg/g; Peroxide value: 0.2mmol/kg; Saponified matter content: 0.003%; Dissolvent residual: < 3mg/kg.Indices all meets GB/T 22327-2008 " walnut oil " primary oil regulation.
embodiment 2
The production method of a kind of walnut oil of the present invention is undertaken by following technique:
1) clean: 1000 kilograms of 1.5mm walnut powders are cleaned and directly entered batch extractor afterwards;
2) leach: under undercritical conditions, carry out lixiviate with butane solvent to walnut powder raw material, walnut powder raw material and butane solvent quality are than being 1:2.5,-0.07Mpa, temperature is 43 DEG C, and extraction time is 30 minutes, obtain the mixture of solvent and oil respectively, leach walnut powder; The mixture of solvent and oil enters evaporation mixer, temperature 42 DEG C, under-0.07Mpa condition, after evaporation recycling design, obtains Extractive crudeoil;
3) squeeze: adopt the oil press zhai of controlled pressing temperature processed to squeeze leaching walnut powder, obtain walnut crude oil, pressing temperature 70 DEG C, pressure is 55Mpa;
4) filter: walnut crude oil adopts 3927(ciphering type) filter-cloth filtering;
5) to come unstuck depickling: the walnut crude oil after filtering is warming up to 45 DEG C together with Extractive crudeoil, add the food grade phosphoric acid that oil weighs 1%, rapid stirring 20 minutes, then add the depickling of 30wt% sodium hydroxide solution, stir, quiescent setting, go out after precipitation, obtain oil plant;
6) wash: the oil plant after depickling of coming unstuck is warming up to 82 DEG C, adds 95 DEG C of hot water of oil plant weight 9%, stir, discharge water after static 45 minutes, repeat said process 3 times;
7) deodorization: the oil plant after washing, 190 DEG C, deodorization under the condition of vacuum tightness 250Pa, obtains finished product walnut oil.
Obtained processed oil index:
Color and luster: yellow 20, red 1.4; Transparency: clarification, transparent; Moisture and volatile matter content: 0.03%; Insoluble impurities: 0.01%; Acid number: 0.18KOHmg/g; Peroxide value: 0.2mmol/kg; Saponified matter content: 0.002%; Dissolvent residual: < 2mg/kg.Indices all meets GB/T 22327-2008 " walnut oil " primary oil regulation.
embodiment 3
The production method of a kind of walnut oil of the present invention is undertaken by following technique:
1) clean: 1000 kilograms of 2mm walnut powders are cleaned and directly entered batch extractor afterwards;
2) leach: under undercritical conditions, carry out lixiviate with butane solvent to walnut powder raw material, walnut powder raw material and butane solvent quality are than being 1:2,-0.09Mpa, temperature is 47 DEG C, and extraction time is 45 minutes, obtain the mixture of solvent and oil respectively, leach walnut powder; The mixture of solvent and oil enters evaporation mixer, temperature 47 DEG C, under-0.08Mpa condition, after evaporation recycling design, obtains Extractive crudeoil;
3) squeeze: adopt the oil press zhai of controlled pressing temperature processed to squeeze leaching walnut powder, obtain walnut crude oil, pressing temperature 73 DEG C, pressure is 57Mpa;
4) filter: walnut crude oil adopts 3927(ciphering type) filter-cloth filtering;
5) to come unstuck depickling: the walnut crude oil after filtering is warming up to 43 DEG C together with Extractive crudeoil, add the food grade phosphoric acid that oil weighs 0.8%, rapid stirring 16 minutes, then add the depickling of 20wt% sodium hydroxide solution, stir, quiescent setting, go out after precipitation, obtain oil plant;
6) wash: the oil plant after depickling of coming unstuck is warming up to 84 DEG C, adds 94 DEG C of hot water of oil plant weight 10%, stir, discharge water after static 50 minutes, repeat said process 3 times;
7) deodorization: the oil plant after washing, 200 DEG C, deodorization under the condition of vacuum tightness 210Pa, obtains finished product walnut oil.
Obtained processed oil index:
Color and luster: yellow 20, red 1.3; Transparency: clarification, transparent; Moisture and volatile matter content: 0.03%; Insoluble impurities: 0.02%; Acid number: 0.15KOHmg/g; Peroxide value: 0.2mmol/kg; Saponified matter content: 0.001%; Dissolvent residual: < 3mg/kg.Indices all meets GB/T 22327-2008 " walnut oil " primary oil regulation.
embodiment 4
The production method of a kind of walnut oil of the present invention is undertaken by following technique:
1) clean: 1000 kilograms of 2mm walnut powders are cleaned and directly entered batch extractor afterwards;
2) leach: under undercritical conditions, carry out lixiviate with butane solvent to walnut powder raw material, walnut powder raw material and butane solvent quality are than being 1:2.3,-0.085Mpa, temperature is 35 DEG C, and extraction time is 42 minutes, obtain the mixture of solvent and oil respectively, leach walnut powder; The mixture of solvent and oil enters evaporation mixer, temperature 30 DEG C, under-0.05Mpa condition, after evaporation recycling design, obtains Extractive crudeoil;
3) squeeze: adopt the oil press zhai of controlled pressing temperature processed to squeeze leaching walnut powder, obtain walnut crude oil, pressing temperature 80 DEG C, pressure is 50Mpa;
4) filter: walnut crude oil adopts 3927(ciphering type) filter-cloth filtering;
5) to come unstuck depickling: the walnut crude oil after filtering is warming up to 35 DEG C together with Extractive crudeoil, add the food grade phosphoric acid that oil weighs 0.5%, rapid stirring 10 minutes, then add the depickling of 25wt% sodium hydroxide solution, stir, quiescent setting, go out after precipitation, obtain oil plant;
6) wash: the oil plant after depickling of coming unstuck is warming up to 85 DEG C, adds 92 DEG C of hot water of oil plant weight 9%, stir, discharge water after static 30 minutes, repeat said process 3 times;
7) deodorization: the oil plant after washing, 170 DEG C, deodorization under the condition of vacuum tightness 210Pa, obtains finished product walnut oil.
Obtained processed oil index:
Color and luster: yellow 20, red 1.2; Transparency: clarification, transparent; Moisture and volatile matter content: 0.03%; Insoluble impurities: 0.02%; Acid number: 0.17KOHmg/g; Peroxide value: 0.2mmol/kg; Saponified matter content: 0.001%; Dissolvent residual: < 3mg/kg.Indices all meets GB/T 22327-2008 " walnut oil " primary oil regulation.
Claims (7)
1. a production method for walnut oil, is characterized in that, walnut powder raw material, successively through cleaning, leaching, squeeze, filter, come unstuck depickling, washing, deodorization procedures, obtains finished product walnut oil.
2. the production method of a kind of walnut oil according to claim 1, is characterized in that, in described leaching operation, adopts subcritical butane to extract.
3. the production method of a kind of walnut oil according to claim 1, is characterized in that, described concrete steps are as follows:
(1) clean: raw material, through screening, is removed solid impurity, obtained walnut powder raw material;
(2) leach: under undercritical conditions, with butane solvent, lixiviate is carried out to walnut powder raw material, obtain the mixture of solvent and oil respectively, leach walnut powder; The mixture of solvent and oil enters evaporation mixer, after evaporation recycling design, obtains Extractive crudeoil;
(3) squeeze: adopt the oil press zhai of controlled pressing temperature processed to squeeze leaching walnut powder, obtain walnut crude oil, pressing temperature is not higher than 80 DEG C, and pressure is 50 ~ 60Mpa;
(4) filter: walnut crude oil adopts 3927(ciphering type) filter-cloth filtering;
(5) to come unstuck depickling: the walnut crude oil after filtering is warming up to 35 ~ 45 DEG C together with Extractive crudeoil, add the food grade phosphoric acid that oil weighs 0.5 ~ 1.5%, rapid stirring 10 ~ 20 minutes, then add sodium hydroxide solution depickling, stir, quiescent setting, go out after precipitation, obtain oil plant;
(6) wash: the oil plant after depickling of coming unstuck is warming up to 80 ~ 85 DEG C, adds 90 ~ 95 DEG C of hot water of oil plant weight 8 ~ 10%, stir, discharge water after static 30 ~ 50 minutes, repeat said process 1 ~ 3 time;
(7) deodorization: the oil plant after washing 170 ~ 200 DEG C, vacuum tightness is less than deodorization under the condition of 300Pa, obtains finished product walnut oil.
4. the production method of a kind of walnut oil according to claim 1-3 any one, is characterized in that, in described leaching operation, walnut powder raw material and butane solvent quality are than being 1:1.5 ~ 2.5,-0.07 ~-0.09Mpa, temperature is 35 ~ 47 DEG C, and extraction time is 30 ~ 45 minutes.
5. the production method of a kind of walnut oil according to claim 1-3 any one, is characterized in that, described walnut powder raw material is the walnut powder that diameter is not more than 2mm.
6. the production method of a kind of walnut oil according to claim 3, is characterized in that, the mixture of described step (2) solvent and oil enters evaporation mixer, and evaporation recovering condition is: temperature 30 ~ 47 DEG C ,-0.05 ~-0.09Mpa.
7. the production method of a kind of walnut oil according to claim 3, is characterized in that, described step (5) concentration of sodium hydroxide solution is 10-30wt%.
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| CN201410832703.0A CN104531344A (en) | 2014-12-29 | 2014-12-29 | Method for producing walnut oil |
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| CN201410832703.0A CN104531344A (en) | 2014-12-29 | 2014-12-29 | Method for producing walnut oil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106118864A (en) * | 2016-06-28 | 2016-11-16 | 陕西日日新生物科技有限公司 | A kind of preparation method of the walnut oil that keeps healthy |
| CN107242565A (en) * | 2017-05-27 | 2017-10-13 | 新疆红帆生物科技有限公司 | Marigold is health food xanthophyll soft capsule of raw material and preparation method thereof |
| CN108192727A (en) * | 2018-03-29 | 2018-06-22 | 洛阳康贝源食品股份有限公司 | A kind of walnut oil refining technique |
| CN108587780A (en) * | 2018-03-29 | 2018-09-28 | 洛阳康贝源食品股份有限公司 | A kind of walnut deep process |
| CN108771254A (en) * | 2018-05-17 | 2018-11-09 | 河北农业大学 | Physical peeling process for walnut meal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101449710A (en) * | 2008-12-29 | 2009-06-10 | 杭州临安临宝食品有限公司 | Production technique of hickory oil |
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| CN101449710A (en) * | 2008-12-29 | 2009-06-10 | 杭州临安临宝食品有限公司 | Production technique of hickory oil |
| CN102924438A (en) * | 2012-10-30 | 2013-02-13 | 晨光生物科技集团股份有限公司 | Method for extracting silymarin and silybum mariamum oil from silybum mariamum seed |
| CN103045356A (en) * | 2012-12-28 | 2013-04-17 | 邯郸晨光珍品油脂有限公司 | Production method for linseed oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106118864A (en) * | 2016-06-28 | 2016-11-16 | 陕西日日新生物科技有限公司 | A kind of preparation method of the walnut oil that keeps healthy |
| CN107242565A (en) * | 2017-05-27 | 2017-10-13 | 新疆红帆生物科技有限公司 | Marigold is health food xanthophyll soft capsule of raw material and preparation method thereof |
| CN108192727A (en) * | 2018-03-29 | 2018-06-22 | 洛阳康贝源食品股份有限公司 | A kind of walnut oil refining technique |
| CN108587780A (en) * | 2018-03-29 | 2018-09-28 | 洛阳康贝源食品股份有限公司 | A kind of walnut deep process |
| CN108771254A (en) * | 2018-05-17 | 2018-11-09 | 河北农业大学 | Physical peeling process for walnut meal |
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