CN102533428B - Walnut oil production method - Google Patents
Walnut oil production method Download PDFInfo
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- CN102533428B CN102533428B CN 201110375911 CN201110375911A CN102533428B CN 102533428 B CN102533428 B CN 102533428B CN 201110375911 CN201110375911 CN 201110375911 CN 201110375911 A CN201110375911 A CN 201110375911A CN 102533428 B CN102533428 B CN 102533428B
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- Prior art keywords
- oil
- walnut
- walnut oil
- production method
- decolouring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 235000019498 Walnut oil Nutrition 0.000 title claims abstract description 35
- 239000008170 walnut oil Substances 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 50
- 235000019198 oils Nutrition 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000005498 polishing Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 241000758789 Juglans Species 0.000 claims description 30
- 235000009496 Juglans regia Nutrition 0.000 claims description 30
- 235000020234 walnut Nutrition 0.000 claims description 30
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052753 mercury Inorganic materials 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 238000013019 agitation Methods 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 9
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000008157 edible vegetable oil Substances 0.000 abstract description 3
- 235000015097 nutrients Nutrition 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract description 2
- 235000012000 cholesterol Nutrition 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 235000016709 nutrition Nutrition 0.000 abstract description 2
- 230000035764 nutrition Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000006378 damage Effects 0.000 abstract 1
- 238000004042 decolorization Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012065 filter cake Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 206010010774 Constipation Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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Abstract
The invention relates to edible oil production, overcoming the defects of complex process and serious destruction of nutrients in raw material in the prior art. The walnut oil production method comprises peeling, water sprinkling, drying, cold-pressing, drying, decolorization, cooling, polishing, filtering and packaging. The process is simpler than the current production method, nutrients cannot be destructed during pressing, residues of acid, alkali, heavy metals, cholesterol and other harmful substances can be avoided effectively, the smell of oil is nature and fragrant, almost no fume is produced, the product is green and healthy, no secondary heating is needed, and the nutrition is comprehensive.
Description
Technical field
The present invention relates to the edible fat production field, specifically is a kind of production method of walnut oil.
Background technology
Walnut oil is the senior edible vegetable oil that natural wild walnut processes, it is the good edible oil of grade top grade, ease constipation, nourishing effects are arranged on medicinal, be nutritious pollution-free green food, belong to natural high-end health-related organotrophy product, be fit to all kinds of crowd's consumption, the market requirement strengthens rapidly.But at present the method for the walnut oil of producing exists oil yield low, and complex manufacturing, input cost are big, and can destroy the nutritive ingredient of walnut in process of production.
Summary of the invention
The objective of the invention is to solve and have complex process in the prior art, former material nutrient destroys big defective, and a kind of walnut oil production method is provided.
For achieving the above object, the technical solution used in the present invention is: a kind of walnut oil production method is characterized in that may further comprise the steps:
(1) decortication
Add in the hot water of 75-85 ℃ of temperature at walnut kernel that will be to be peeled, soaks after 10-15 minute the hot water discharge, draw walnut kernel in the cool flushing with clean water jacketed kettle with hydraulic giant, remove attached skin;
(2) trickle
The walnut that removes attached skin is pulled out, and water drenches stand-by only;
(3) oven dry
To drench clean walnut kernel ventilation oven dry, bake out temperature remains on 75-85 ℃, continues 2-3 hour;
(4) oil expression
The walnut kernel of oven dry is added in the hydraulic oil press, adopt method for cold pressing to press into walnut oil;
(5) drying
Spray in the vacuum drier with vaporific form by nozzle after walnut oil is heated to 85-95 ℃, the vacuum tightness of vacuum drier remains on the 700mm mercury column;
(6) decolouring
Dried walnut oil enters the decolouring oil tank, and the vacuum tightness of decolouring oil tank remains on the 700mm mercury column, and oily temperature remains on 85-95 ℃, adds atlapulgite or the activated carbon of walnut oil weight 1-3%, and 20 minutes after-filtration under agitation decolour;
(7) cooling
Walnut oil temperature after the decolouring is down to below 60 ℃;
(8) polishing is filtered, is packed.
Walnut oil production method technology provided by the invention is simple, adopt dry method to peel off and technology such as shell benevolence separation is carried out comprehensive process to seed, cold press can guarantee that than traditional technology various nutritive ingredients are not destroyed in expressing process, residues of harmful substances such as acid, alkali, heavy metal and cholesterol have effectively been stopped, thereby make oily smell natural faint scent, genuineness approaches zero oil smoke, green health, no second-heating comprehensive nutrition.
After testing, the walnut oil that adopts the inventive method to produce can reach following index:
Description of drawings
Fig. 1 is process flow sheet of the present invention.
Embodiment
As shown in Figure 1, a kind of walnut oil production method of the present invention may further comprise the steps:
(1) decortication
Add in the hot water of temperature 80 ℃ (or 75 ℃ or 85 ℃) at walnut kernel that will be to be peeled, soaks after 10-15 minute the hot water discharge, draw walnut kernel in the cool flushing with clean water jacketed kettle with hydraulic giant, remove attached skin.Specific practice is:
Cold water is added in the stainless steel jacketed kettle, add the water yield and be about about 1/3rd of stainless steel jacketed kettle capacity, open steam valve, by steam reducing valve vapor pressure is adjusted to below the 0.1Mpa, be no more than the operating pressure requirement of jacketed kettle.Water in the stainless steel jacketed kettle is heated to 80 ℃ (or 75 ℃ or 85 ℃).An amount of blanched walnut meat for the treatment of is poured in the stainless steel jacketed kettle, do not have walnut kernel to be advisable slightly with water logging, keep water temperature at 80 ℃ (or 75 ℃ or 85 ℃), make after walnut kernel soaked 10-15 minute in hot water, water in the stainless steel jacketed kettle is discharged, draw walnut kernel in the cool flushing with clean water pot with water blast gun, remove its attached skin; The effect that high pressure water plays and rubs, washes away is discharged water afterwards more again.Repeated multiple times, the benevolence skin full scale clearance of walnut kernel is clean.
(2) trickle
To take off the walnut kernel of attached skin and pull out from water with big bamboo strainer, be put on the trickle case, drench the water in the walnut kernel stand-by only; For shortening the content that the following road baking operation time should reduce open fire in the benevolence.The benevolence skin of sloughing will be collected together, keeps the Working environment cleaning, prevents from polluting.
(3) oven dry
To drench clean walnut kernel ventilation oven dry, bake out temperature remains on 80 ℃ (or 75 ℃ or 85 ℃), continues 2-3 hour.Specific practice is: when benevolence is soaked decortication or trickle in advance with the steam valve of hot air circulation drying baker
Door is opened, and gives baking oven preheating (also can adopt the energising heating).To take off skin and drench the pallet that good walnut kernel is put into drying baker, open induced draft fan with drainage water steam.Be provided with a plurality of pallets in the baking oven, many little open-works are arranged at the bottom of each pallet, and these little open-works can make heat and water vapor pass.It is even equal to ensure that walnut kernel is heated walnut kernel will to be shakeout the book stand, the degree of drying unanimity; The walnut kernel overdrying of avoiding, and the walnut kernel that has also has open fire.Dry for guaranteeing the oven dry of walnut kernel heat, can halfway the benevolence in the pallet be stirred several times so that be heated evenly.The height of oven dry degree directly influences quality and the oil yield of bottom oil expression oil, and bake out temperature remains on 80 ℃ (or 75 ℃ or 85 ℃), and the time length is about 2-3 hour, and drying to walnut kernel does not have open fire, and is dry.
(4) oil expression
The walnut kernel of oven dry is added in the hydraulic oil press, adopt method for cold pressing to press into walnut oil.Several oil press zhai can carry out simultaneously, will clean out in the crusher fuel tank, and fill up 46#, 68# hydraulic efficiency oil gets final product.Check whether each position bolt is loosening, checks whether the circuit wiring is correct, and connect ground wire.After connecting power supply, will put mat above the orifice plate in the barrel well earlier, again oil plant is added (barrel is made into filter cylinder with filter cloth) in the barrel, put mat after filling it up with again, put down material baffle, begin squeezing in the activity of closing behind the top, reversing valve is placed hoisting position, about 6-10 minute, can finish.
Electrical apparatus control system stopped automatically when the equipressure list index was raised to the red pin of 30 MPas, when gauge hand dropped to the green pin of 20 MPas when treating that a small amount of oil oozes out in the barrel, electrical apparatus control system began automatically, and pressure gos up again, when barrel does not have oil and oozes out, show that oil has gone out to get final product off-load only.
Release is held the reversing valve handle it is slowly put to lowering position, makes barrel drop to the last top of distance 10 millimeter, and room in the middle of reversing valve is placed is drawn back the movable top of going up and got cake.
Again reversing valve is placed hoisting position material cake and begun and rise, treat piston head plate upper surface hole plate hight discharge barrel plane 5 millimeter, reversing valve is placed the room, take away and go up material baffle and mat, take out the material cake.Then reversing valve is placed lowering position, piston is descended fast, prepare squeezing for the second time.
(5) drying
Walnut oil is heated to 90 ℃ (or 85 ℃ or 95 ℃) back sprays in the vacuum drier with vaporific form by nozzle, the vacuum tightness of vacuum drier remains on the 700mm mercury column.
Contain a spot of moisture content in the oil that oil press zhai is squeezed out, the existence of moisture content directly influences transparency and the outward appearance of oil, and the existence of W/O part makes easily also that oil is easier to become sour, and carries out drying so will press walnut oil to machine.Desiccant key equipment is vacuum drier, and vacuum drier is the equipment that the grease that contains small amount of moisture is carried out continuously dehydrating under vacuum state.Open the vacuum pump water circulating pump of vacuum drier earlier, vacuum is moved to the 700mm mercury column, make well heater simultaneously and carry out preheating.Through well heater oil is heated to 90 ℃ (or 85 ℃ or 95 ℃), opens dry oil pump, the walnut oil after will heating with vaporific form by nozzle sprays in the vacuum drier, and under the pulling of vacuum, moisture content separates from oil, thereby oil is able to drying.Start the bleached oil extractor pump, oil is squeezed into the decolouring oil tank.
(6) decolouring
Dried walnut oil enters the decolouring oil tank, and the vacuum tightness of decolouring oil tank remains on the 700mm mercury column, and oily temperature remains on 90 ℃ (or 85 ℃ or 95 ℃), adds atlapulgite or the activated carbon of walnut oil weight 1-3%, and 20 minutes after-filtration under agitation decolour.
The decolouring oil tank equally also is to work under vacuum condition, and the same with the flame filter press that comes unstuck, when just beginning, filter cake does not form in the flame filter press, and oil is generally defective, this part oil is back to head tank carries out multiple filter.Treat to enter into down drying process one after filter cake forms filter oily qualified.Better also can decolour as the walnut oil oil colours, oil then by-passing enters next process.Two platen frame filters are used alternatingly, and pressurized air is to be used for drying up filter cake when shutting down, and reduces oil-containing in the cake.
(7) cooling
Walnut oil temperature after the decolouring is down to below 60 ℃; Easy oxidation when oil contact with air under the high temperature bar, the peroxide value rising.Oil temperature after the decolouring be 70-80 ℃, in order to prevent the walnut oil oxidation, be to the further reduction of oil temperature, and can enter product tank below the oily temperature drop to 60 ℃.Reduction to the oil temperature is undertaken by circulating water.
(8) polishing is filtered, is packed.
Polishing is filtered and to be finished with deep bed filter, be before the processed oil at last to the oil product primary treatment.It is that the impurity that possible deposit is filtered that polishing is filtered, thereby improves the processed oil quality.
The oil that filters through polishing directly enters product tank, by the finished product oil pump oil is squeezed into racking room again and is packaged into bottled finished product.Two deep bed filter are used alternatingly, and pressurized air is to dry up trapped fuel in the bag when shutting down, and oil is returned the crude oil case, is convenient to change filter bag.
Claims (4)
1. walnut oil production method is characterized in that may further comprise the steps:
(1) decortication
Add in the hot water of 75-85 ℃ of temperature at walnut kernel that will be to be peeled, soaks after 10-15 minute the hot water discharge, draw walnut kernel in the cool flushing with clean water jacketed kettle with hydraulic giant, remove attached skin;
(2) trickle
The walnut that removes attached skin is pulled out, and water drenches stand-by only;
(3) oven dry
To drench clean walnut kernel ventilation oven dry, bake out temperature remains on 75-85 ℃, continues 2-3 hour;
(4) oil expression
The walnut kernel of oven dry is added in the hydraulic oil press, adopt method for cold pressing to press into walnut oil;
(5) drying
Spray in the vacuum drier with vaporific form by nozzle after walnut oil is heated to 85-95 ℃, the vacuum tightness of vacuum drier remains on the 700mm mercury column;
(6) decolouring
Dried walnut oil enters the decolouring oil tank, and the vacuum tightness of decolouring oil tank remains on the 700mm mercury column, and oily temperature remains on 85-95 ℃, adds atlapulgite or the activated carbon of walnut oil weight 1-3%, and 20 minutes after-filtration under agitation decolour;
(7) cooling
Walnut oil temperature after the decolouring is down to below 60 ℃;
(8) polishing is filtered, is packed.
2. walnut oil production method according to claim 1, it is characterized in that: in the step (3), bake out temperature remains on 80 ℃.
3. walnut oil production method according to claim 1 is characterized in that: in the step (5), walnut oil is heated to 90 ℃.
4. walnut oil production method according to claim 1 is characterized in that: in the step (6), the oil temperature remains on 90 ℃ during decolouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110375911 CN102533428B (en) | 2011-11-23 | 2011-11-23 | Walnut oil production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110375911 CN102533428B (en) | 2011-11-23 | 2011-11-23 | Walnut oil production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102533428A CN102533428A (en) | 2012-07-04 |
| CN102533428B true CN102533428B (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110375911 Expired - Fee Related CN102533428B (en) | 2011-11-23 | 2011-11-23 | Walnut oil production method |
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| Country | Link |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104818109A (en) * | 2015-04-06 | 2015-08-05 | 查孝柱 | Rubus chingii oil production process |
| CN104830518A (en) * | 2015-04-06 | 2015-08-12 | 查孝柱 | Production process of peeled East China wild walnut oil |
| CN105410956A (en) * | 2015-11-30 | 2016-03-23 | 库车荣光食品饮料加工有限责任公司 | Walnut kernel peeling technology, walnut protein drink formula component and preparation technology thereof |
| CN107384577A (en) * | 2016-05-16 | 2017-11-24 | 戚友亦 | A kind of preparation method of walnut oil |
| CN107904007A (en) * | 2017-12-16 | 2018-04-13 | 盐津益康食用油有限责任公司 | A kind of production technology of walnut oil of environmental protection low-residual |
| CN108925649A (en) * | 2018-04-10 | 2018-12-04 | 兰纬 | A kind of walnut oil processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1354518A1 (en) * | 2002-04-15 | 2003-10-22 | Dapeng Li | Kernel oil from plant kernel, process for extracting same, pharmaceutical composition and use thereof |
| CN1888038A (en) * | 2006-07-20 | 2007-01-03 | 迪庆香格里拉舒达有机食品有限公司 | Prepn of cold squeezed wild walnut oil |
| CN101411364A (en) * | 2007-10-19 | 2009-04-22 | 王丰俊 | A kind of technique for producing walnut oil by cold pressing and cold refining method |
-
2011
- 2011-11-23 CN CN 201110375911 patent/CN102533428B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1354518A1 (en) * | 2002-04-15 | 2003-10-22 | Dapeng Li | Kernel oil from plant kernel, process for extracting same, pharmaceutical composition and use thereof |
| CN1888038A (en) * | 2006-07-20 | 2007-01-03 | 迪庆香格里拉舒达有机食品有限公司 | Prepn of cold squeezed wild walnut oil |
| CN101411364A (en) * | 2007-10-19 | 2009-04-22 | 王丰俊 | A kind of technique for producing walnut oil by cold pressing and cold refining method |
Non-Patent Citations (2)
| Title |
|---|
| 李子明等.核桃制油及深加工技术的比较研究.《农业工程技术(农产品加工业)》.2009,(第08期), |
| 核桃制油及深加工技术的比较研究;李子明等;《农业工程技术(农产品加工业)》;20090815(第08期);第31-36页 * |
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| CN102533428A (en) | 2012-07-04 |
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