CN108774579A - It is a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material - Google Patents
It is a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material Download PDFInfo
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- CN108774579A CN108774579A CN201810631211.3A CN201810631211A CN108774579A CN 108774579 A CN108774579 A CN 108774579A CN 201810631211 A CN201810631211 A CN 201810631211A CN 108774579 A CN108774579 A CN 108774579A
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- 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
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- 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
- C11B1/025—Pretreatment by enzymes or microorganisms, living or dead
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- 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
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/106—Production of fats or fatty oils from raw materials by extracting using ultra-sounds
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- Fats And Perfumes (AREA)
- Edible Oils And Fats (AREA)
Abstract
The invention discloses a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, includes the following steps：A, vegetable seed is cleaned；B, quenched drying：Vegetable seed is heated to 60~80 DEG C, until when water content is reduced to 5%~8%, the temperature of vegetable seed is reduced to 10~15 DEG C within 4~9min, and kept for 10~15 minutes at a temperature of 10~15 DEG C；C, it peels：By the vegetable seed decortication after quenched drying, the vegetable seed skin of rapeseed dehulled of the amount containing skin less than 2% and amount containing benevolence less than 2% is obtained；D, embryo is rolled；E, secondary quenched：The rapeseed dehulled after embryo will be rolled and be heated to 25~40 DEG C, water content is down to 4%~5%；F, fuel-displaced.Using after this technique, the oil in rapeseed dehulled can not only be fully squeezed, additionally it is possible to extract the oil in vegetable seed skin, the oil in vegetable seed skin is avoided to slattern, improve the oil yield of vegetable seed, can promote economic benefit.
Description
Technical field
It is especially a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material the invention belongs to technical field of extracting oil.
Background technology
The traditional squeezing mode of rapeseed oil is that vegetable seed is fried rear belt leather to squeeze, and oily quality is relatively low, and oil pump capacity is paid no attention to
Think, cause the waste of rapeseed, therefore, part of the manufacturer develops peeling cold pressing process, and such as application No. is 201510007184.9
Application for a patent for invention, application No. is 01128870.1 applications for a patent for invention, application No. is 02146190.2 patents of invention
Application etc., after peeling cold pressing process, oil yield increases substantially, and the protein content in oil cake is also improved, energy
It is enough in the feed for making high nutritive value, economic value is higher.Although nutritional ingredient is less than rapeseed dehulled in the vegetable seed skin of removing,
But contain 11% to 15% protein, 10% to 12% oil, 31% to 34% crude fibre（That is butt）, currently, vegetable seed skin
All it is to be directly used in the roughage for making low nutrition, economic value is relatively low.
Invention content
The purpose of the present invention is to provide a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, makes full use of vegetable seed
Skin further improves oil yield, promotes economic benefit.
The object of the present invention is achieved like this：It is a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, including with
Lower step：
A, vegetable seed is cleaned；
B, quenched drying：Vegetable seed is heated to 60~80 DEG C, until when water content is reduced to 5%~8%, it will within 4~9min
The temperature of vegetable seed is reduced to 10~15 DEG C, and is kept for 10~15 minutes at a temperature of 10~15 DEG C；
C, it peels：By the vegetable seed decortication after quenched drying, the dish of rapeseed dehulled of the amount containing skin less than 2% and amount containing benevolence less than 2% is obtained
Seed peel；
D, embryo is rolled；
E, secondary quenched：The rapeseed dehulled after embryo will be rolled and be heated to 25~40 DEG C, water content is down to 4%~5%；
F, fuel-displaced
F1, using high oil content oilseed extruder to it is secondary it is quenched after rapeseed dehulled carry out cold press, in rapeseed dehulled of squeezing out 37% to
40% primary oil obtains level-one rape oil after the primary oil refinement；Rest materials form puffing coefficient 1:（1.6~1.8）, unit weight
480~495kg/m3, water content 3.5%~4% the puffing pellet of cellular, the puffing pellet residual oil content be 25~29%；
F2, the edible alcohol solution that mass concentration is 50g/L~100g/L, the liquid of edible alcohol solution are added into puffing pellet
Face height is filtered higher than 10cm~15cm at the top of puffing pellet after extracting 120min~150min, obtains the dregs of fat and the first extraction
Liquid；
F3, by the first leaching liquor be concentrated into water content be 6%~10%, obtain first grade oil；
F4, the composite enzyme solution that mass concentration is 0.12g/L~0.15g/L is added into vegetable seed skin, ensures that vegetable seed skin is compound
Enzyme solutions flood, and then stir vegetable seed skin and composite enzyme solution, are filtered after digesting 150min~180min, obtain enzymolysis liquid and enzyme
Solve vegetable seed skin；
F5, the edible alcohol solution that mass concentration is 50g/L~100g/L is added into enzymolysis vegetable seed skin, edible alcohol solution
Liquid level is filtered higher than 10cm~15cm at the top of enzymolysis vegetable seed skin after extracting 120min~150min, obtain vegetable seed skin slag and
Second leaching liquor；
F6, the first leaching liquor and the second leaching liquor are mixed and be concentrated into water content be 6%~10%, obtain second subprime oil；
F7, first grade oil and second subprime oil are mixed and is refined, obtain two level rape oil.
Further, in step F3 and F6, heating concentration is carried out to material using vacuum decker, and will be evaporated when concentrating
Water and the edible alcohol recycling gone out.
Further, in step f 4, the complex enzyme type in composite enzyme solution and mass ratio are protease：Amylase：
Cellulase：Pectase=（2.5~3.2）：（2.3~2.9）：（1.5~2.5）：（1.7~2.6）, enzyme activity be 3000~
3100U/mg。
Further, the vegetable seed skin slag mixed fermentation dregs of fat that step F2 is obtained obtained with step F5, obtains concentrated feed.
Further, it in step F2 and F5, is extracted in the container with ultrasonic transmitter, ultrasonic wave when extraction
Generator sends out ultrasonic wave to solution.
The beneficial effects of the invention are as follows：Using after this technique, the oil in rapeseed dehulled can not only be fully squeezed, additionally it is possible to
The oil in vegetable seed skin is extracted, the oil in vegetable seed skin is avoided to slattern, improves the oil yield of vegetable seed, economic effect can be promoted
Benefit.
Specific implementation mode
With reference to embodiment, the present invention is further described.
The present invention's is a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, includes the following steps：
A, vegetable seed is cleaned；Removal of impurities includes the cleaning removal of impurities mode of the routine such as cleaning, magnetic separation, selection by winnowing, is used for the gold in vegetable seed
Belong to the removings such as impurity, plastic contaminant, soil dust, ensure the clean hygiene of vegetable seed, while impurity when squeezing being avoided to set squeezing
It is standby to damage.
B, quenched drying：Vegetable seed is heated to 60~80 DEG C, until when water content is reduced to 5%~8%, 4~9min it
It is interior that the temperature of vegetable seed is reduced to 10~15 DEG C, and kept for 10~15 minutes at a temperature of 10~15 DEG C.Water content refers to water
Quality and vegetable seed gross mass ratio.After vegetable seed is heated, its moisture evaporation can be made, water content is reduced, when heating and continuous
Between determined according to water content；When water content is reduced to 5%~8%, the temperature of vegetable seed is reduced in a relatively short period of time relatively low
Value, can make vegetable seed skin become fragile, and be conducive to the progress of subsequently decortication process, improve peeling rate.When cooling, vegetable seed can be shifted
It blows to vegetable seed in freezer and being stirred continuously, or using low-temperature cold wind and vegetable seed is stirred continuously, to realize its fast prompt drop
Temperature.
C, it peels：By the vegetable seed decortication after quenched drying, obtains rapeseed dehulled of the amount containing skin less than 2% and amount containing benevolence is less than 2%
Vegetable seed skin.Decortication is carried out using existing dedicated vegetable seed peeler, and by separation of hull and kernel after decortication, amount containing skin refers to vegetable seed skin
Quality and skin benevolence gross mass ratio, amount containing benevolence refers to the ratio of the quality and skin benevolence gross mass of rapeseed dehulled, will be in rapeseed dehulled
Amount containing skin control attenuating level, can effectively be promoted oil yield and oil quality.
D, embryo is rolled：Rapeseed dehulled be squeezed into advance, with certain thickness sheet, carrying out at normal temperatures；Rolling embryo is
By existing conventional oil expression technology by oil plant by the granular process for being pressed into sheet.
E, secondary quenched：The rapeseed dehulled after embryo will be rolled and be heated to 25~40 DEG C, water content is down to 4%~5%, water content, that is, water
Quality and rapeseed dehulled gross mass ratio, by the temperature of rapeseed dehulled and water content control in suitable range, it is ensured that fuel-displaced
Rate.
F, fuel-displaced
F1, using high oil content oilseed extruder to it is secondary it is quenched after rapeseed dehulled carry out cold press, in rapeseed dehulled of squeezing out 37% to
40% primary oil obtains level-one rape oil after the primary oil refinement；Rest materials form puffing coefficient 1:（1.6~1.8）, unit weight
480~495kg/m3, water content 3.5%~4% the puffing pellet of cellular, the puffing pellet residual oil content be 25~29%.Water content
For the ratio of the quality and puffing pellet gross mass of water, residual oil content is the ratio of the quality and puffing pellet gross mass of oil.Cold press
Using dedicated equipment carry out, specifically, can be used application No. is 03235115.1,200610018385.X,
200620095351.6 oil press.Since the oil content in rapeseed dehulled is high, and it is being to carry out cold extrusion squeezing under room temperature, is avoiding
Nutriment in high temperature oil, therefore, the oil obtained using cold extrusion squeezing rapeseed dehulled pass through simple conventional refinery work
After skill, it will be able to reach the standard of level-one rape oil, economic value is high.Also contain a large amount of oil in rest materials after fuel-displaced, it is existing
There is technology that the mode of twice pressing is usually used by oily squeezing, but the oil yield of twice pressing is relatively low, therefore, the present invention uses
The mode of extraction is fuel-displaced, in order to ensure oil yield, using bulking machine by material it is puffing after extract again.
F2, the edible alcohol solution that mass concentration is 50g/L~100g/L, edible alcohol solution are added into puffing pellet
Liquid level higher than 10cm~15cm at the top of puffing pellet enzymolysis vegetable seed skin, filter, obtain after extracting 120min~150min
The dregs of fat and the first leaching liquor.Edible alcohol is very small to the harm of human body, will not be polluted to oil, and oil is molten in alcohol
Xie Du higher can improve leaching rate.Extraction carries out in existing dedicated extraction equipment, in oil extraction, puffing pellet
Due to being in vesicular texture, alcohol is easy to permeate into material, and miscella is also easy to external diffusion, and infuser increases solvent spray again
Leaching amount properly increases solvent ratio, and residual oil content is up to 1.5% hereinafter, crude protein content is up to 45%~48% in the dregs of fat（Butt）.
F3, by the first leaching liquor be concentrated into water content be 6%~10%, obtain first grade oil.
F4, the composite enzyme solution that mass concentration is 0.12g/L~0.15g/L is added into vegetable seed skin, ensures vegetable seed skin quilt
Composite enzyme solution is flooded, and vegetable seed skin and composite enzyme solution are then stirred, and is filtered after digesting 150min~180min, is obtained enzymolysis liquid
With enzymolysis vegetable seed skin.Complex enzyme can destroy the eucaryotic cell structure of vegetable seed skin, so that the oil of cell interior is leached, in order to follow-up
Extraction process.Complex enzyme type and mass ratio in composite enzyme solution are protease：Amylase：Cellulase：Pectase=
（2.5~3.2）：（2.3~2.9）：（1.5~2.5）：（1.7~2.6）, enzyme activity is 3000~3100U/mg, it is ensured that compared with
Good hydrolysis result.
F5, the edible alcohol solution that mass concentration is 50g/L~100g/L is added into enzymolysis vegetable seed skin, edible alcohol is molten
The liquid level of liquid filters after extracting 120min~150min higher than 10cm~15cm at the top of enzymolysis vegetable seed skin, obtains vegetable seed skin
Slag and the second leaching liquor.Extraction carries out in existing dedicated extraction equipment, and after extraction, the oil content in vegetable seed skin slag is low
In 2.5%.
F6, the first leaching liquor and the second leaching liquor are mixed and be concentrated into water content be 6%~10%, obtain second subprime
Oil；Water content refers to the quality of water and the gross mass ratio of mixing liquid.
F7, first grade oil and second subprime oil are mixed and is refined, obtain two level rape oil.First grade oil and
The oil phase ratio that secondary stage oil is obtained with rapeseed dehulled cold press, impurity content is more, but after conventional refining, can reach two level dish
The standard of oil, it may have higher economic value.
Existing arbitrary method for concentration and equipment can be used in enrichment process, it is preferred that in above-mentioned steps F3 and F6, using true
Empty thickener carries out heating concentration to material, and the water and edible alcohol that are evaporated when concentrating is recycled, the edible alcohol of recycling
It can utilize, increase operation rate again, reduce cost.
The vegetable seed skin slag mixed fermentation that the dregs of fat that step F2 is obtained are obtained with step F5, obtains concentrated feed.Fermentation uses
The normal fermentation technique of existing feed.Nutrient composition content is relatively low in the vegetable seed skin slag that step F5 is obtained, but step F2 is obtained
To the dregs of fat in nutrient composition content it is higher, after the two collocation is fermented, feed stuff full of nutrition can be obtained, it is economical
Value is higher.
In step F2 and F5, extracted in the container with ultrasonic transmitter, when extraction supersonic generator to
Solution sends out ultrasonic wave.The ultrasonic wave that supersonic generator generates can make liquid vibration, improve leaching rate.
Embodiment one
It is a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, include the following steps：
A, vegetable seed is cleaned；
B, quenched drying：Vegetable seed is heated to 60 DEG C, until when water content is reduced to 5%, is reduced the temperature of vegetable seed within 4
To 15 DEG C, and kept for 15 minutes at a temperature of 15 DEG C；
C, it peels：By the vegetable seed decortication after quenched drying, the dish of rapeseed dehulled of the amount containing skin less than 2% and amount containing benevolence less than 2% is obtained
Seed peel；
D, embryo is rolled；
E, secondary quenched：The rapeseed dehulled after embryo will be rolled and be heated to 25 DEG C, water content is down to 4%；
F, fuel-displaced
F1, using high oil content oilseed extruder to it is secondary it is quenched after rapeseed dehulled carry out cold press, in rapeseed dehulled of squeezing out 37% to
40% primary oil obtains level-one rape oil after the primary oil refinement；Rest materials form puffing coefficient 1:1.6, unit weight 480kg/
m3, water content 3.5% the puffing pellet of cellular, the puffing pellet residual oil content be 25%；
F2, the edible alcohol solution that mass concentration is 50g/L is added into puffing pellet, the liquid level of edible alcohol solution is high
The 10cm at the top of puffing pellet filters after extracting 150min, obtains the dregs of fat and the first leaching liquor；Using with ultrasonic transmitter
Container in extracted, supersonic generator sends out ultrasonic wave to solution when extraction.
F3, by the first leaching liquor be concentrated into water content be 6%, obtain first grade oil；Specifically use vacuum decker pair
Material carries out heating concentration, and the water and edible alcohol that are evaporated when concentrating are recycled.
F4, the composite enzyme solution that mass concentration is 0.12g/L is added into vegetable seed skin, ensures vegetable seed skin by composite enzyme solution
It floods, then stirs vegetable seed skin and composite enzyme solution, filtered after digesting 180min, obtain enzymolysis liquid and enzymolysis vegetable seed skin；It is compound
Complex enzyme type and mass ratio in enzyme solutions are protease：Amylase：Cellulase：Pectase=2.5：2.3：1.5：1.7
Enzyme activity is 3000~3100U/mg.
F5, the edible alcohol solution that mass concentration is 50g/L, the liquid level of edible alcohol solution are added into enzymolysis vegetable seed skin
Height filters after extracting 150min higher than 10cm at the top of enzymolysis vegetable seed skin, obtains vegetable seed skin slag and the second leaching liquor；Using with
It is extracted in the container of ultrasonic transmitter, supersonic generator sends out ultrasonic wave to solution when extraction.
F6, the first leaching liquor and the second leaching liquor are mixed and be concentrated into water content be 6%, obtain second subprime oil；Specifically
Heating concentration is carried out to material using vacuum decker, and the water and edible alcohol that are evaporated when concentrating are recycled.
F7, first grade oil and second subprime oil are mixed and is refined, obtain two level rape oil.
The vegetable seed skin slag mixed fermentation that the dregs of fat that step F2 is obtained are obtained with step F5, obtains concentrated feed.
Embodiment two
It is a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, include the following steps：
A, vegetable seed is cleaned；
B, quenched drying：Vegetable seed is heated to 70 DEG C, until when water content is reduced to 6%, is reduced the temperature of vegetable seed within 7
To 12 DEG C, and kept for 12 minutes at a temperature of 12 DEG C；
C, it peels：By the vegetable seed decortication after quenched drying, the dish of rapeseed dehulled of the amount containing skin less than 2% and amount containing benevolence less than 2% is obtained
Seed peel；
D, embryo is rolled；
E, secondary quenched：The rapeseed dehulled after embryo will be rolled and be heated to 35 DEG C, water content is down to 4.5%；
F, fuel-displaced
F1, using high oil content oilseed extruder to it is secondary it is quenched after rapeseed dehulled carry out cold press, in rapeseed dehulled of squeezing out 37% to
40% primary oil obtains level-one rape oil after the primary oil refinement；Rest materials form puffing coefficient 1:1.7, unit weight 485kg/
m3, water content 3.7% the puffing pellet of cellular, the puffing pellet residual oil content be 27%；
F2, the edible alcohol solution that mass concentration is 80g/L is added into puffing pellet, the liquid level of edible alcohol solution is high
The 12cm at the top of puffing pellet filters after extracting 140min, obtains the dregs of fat and the first leaching liquor；Using with ultrasonic transmitter
Container in extracted, supersonic generator sends out ultrasonic wave to solution when extraction.
F3, by the first leaching liquor be concentrated into water content be 8%, obtain first grade oil；Specifically use vacuum decker pair
Material carries out heating concentration, and the water and edible alcohol that are evaporated when concentrating are recycled.
F4, the composite enzyme solution that mass concentration is 0.14g/L is added into vegetable seed skin, ensures vegetable seed skin by composite enzyme solution
It floods, then stirs vegetable seed skin and composite enzyme solution, filtered after digesting 160min, obtain enzymolysis liquid and enzymolysis vegetable seed skin；It is compound
Complex enzyme type and mass ratio in enzyme solutions are protease：Amylase：Cellulase：Pectase=2.8：2.5：2：2.2, enzyme
Vigor is 3000~3100U/mg.
F5, the edible alcohol solution that mass concentration is 80/L, the liquid level of edible alcohol solution are added into enzymolysis vegetable seed skin
Height filters after extracting 140min higher than 12cm at the top of enzymolysis vegetable seed skin, obtains vegetable seed skin slag and the second leaching liquor；Using with
It is extracted in the container of ultrasonic transmitter, supersonic generator sends out ultrasonic wave to solution when extraction.
F6, the first leaching liquor and the second leaching liquor are mixed and be concentrated into water content be 8%, obtain second subprime oil；Specifically
Heating concentration is carried out to material using vacuum decker, and the water and edible alcohol that are evaporated when concentrating are recycled.
F7, first grade oil and second subprime oil are mixed and is refined, obtain two level rape oil.
The vegetable seed skin slag mixed fermentation that the dregs of fat that step F2 is obtained are obtained with step F5, obtains concentrated feed.
Embodiment three
It is a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, include the following steps：
A, vegetable seed is cleaned；
B, quenched drying：Vegetable seed is heated to 80 DEG C, until when water content is reduced to 8%, is dropped the temperature of vegetable seed within 9min
Down to 10 DEG C, and kept for 10 minutes at a temperature of 10 DEG C；
C, it peels：By the vegetable seed decortication after quenched drying, the dish of rapeseed dehulled of the amount containing skin less than 2% and amount containing benevolence less than 2% is obtained
Seed peel；
D, embryo is rolled；
E, secondary quenched：The rapeseed dehulled after embryo will be rolled and be heated to 40 DEG C, water content is down to 5%；
F, fuel-displaced
F1, using high oil content oilseed extruder to it is secondary it is quenched after rapeseed dehulled carry out cold press, in rapeseed dehulled of squeezing out 37% to
40% primary oil obtains level-one rape oil after the primary oil refinement；Rest materials form puffing coefficient 1:1.8, unit weight 495kg/
m3, water content 4% the puffing pellet of cellular, the puffing pellet residual oil content be 29%；
F2, the edible alcohol solution that mass concentration is 100g/L, the liquid level of edible alcohol solution are added into puffing pellet
Higher than 15cm at the top of puffing pellet, is filtered after extracting 120min, obtain the dregs of fat and the first leaching liquor；Emit using with ultrasonic wave
It is extracted in the container of device, supersonic generator sends out ultrasonic wave to solution when extraction.
F3, by the first leaching liquor be concentrated into water content be 10%, obtain first grade oil；Specifically use vacuum decker
Heating concentration is carried out to material, and the water and edible alcohol that are evaporated when concentrating are recycled.
F4, the composite enzyme solution that mass concentration is 0.15g/L is added into vegetable seed skin, ensures vegetable seed skin by composite enzyme solution
It floods, then stirs vegetable seed skin and composite enzyme solution, filtered after digesting 150min, obtain enzymolysis liquid and enzymolysis vegetable seed skin；It is compound
Complex enzyme type and mass ratio in enzyme solutions are protease：Amylase：Cellulase：Pectase=3.2： 2.9： 2.5：
2.6, enzyme activity is 3000~3100U/mg.
F5, the edible alcohol solution that mass concentration is 100g/L, the liquid of edible alcohol solution are added into enzymolysis vegetable seed skin
Face height filters after extracting 120min higher than 15cm at the top of enzymolysis vegetable seed skin, obtains vegetable seed skin slag and the second leaching liquor；Using tool
It is extracted in the container for having ultrasonic transmitter, supersonic generator sends out ultrasonic wave to solution when extraction.
F6, the first leaching liquor and the second leaching liquor are mixed and be concentrated into water content be 10%, obtain second subprime oil；Tool
Body carries out heating concentration using vacuum decker to material, and the water and edible alcohol that are evaporated when concentrating are recycled.
F7, first grade oil and second subprime oil are mixed and is refined, obtain two level rape oil.
The vegetable seed skin slag mixed fermentation that the dregs of fat that step F2 is obtained are obtained with step F5, obtains concentrated feed.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, which is characterized in that include the following steps：
A, vegetable seed is cleaned；
B, quenched drying：Vegetable seed is heated to 60~80 DEG C, until when water content is reduced to 5%~8%, it will within 4~9min
The temperature of vegetable seed is reduced to 10~15 DEG C, and 10~15min is kept at a temperature of 10~15 DEG C；
C, it peels：By the vegetable seed decortication after quenched drying, the dish of rapeseed dehulled of the amount containing skin less than 2% and amount containing benevolence less than 2% is obtained
Seed peel；
D, embryo is rolled；
E, secondary quenched：The rapeseed dehulled after embryo will be rolled and be heated to 25~40 DEG C, water content is down to 4%~5%；
F, fuel-displaced
F1, using high oil content oilseed extruder to it is secondary it is quenched after rapeseed dehulled carry out cold press, in rapeseed dehulled of squeezing out 37% to
40% primary oil obtains level-one rape oil after the primary oil refinement；Rest materials form puffing coefficient 1:（1.6~1.8）, unit weight
480~495kg/m3, water content 3.5%~4% the puffing pellet of cellular, the puffing pellet residual oil content be 25~29%；
F2, the edible alcohol solution that mass concentration is 50g/L~100g/L, the liquid of edible alcohol solution are added into puffing pellet
Face height is filtered higher than 10cm~15cm at the top of puffing pellet after extracting 120min~150min, obtains the dregs of fat and the first extraction
Liquid；
F3, the first leaching liquor is concentrated into water content be 6%~10%, obtain first grade oil；
F4, the composite enzyme solution that mass concentration is 0.12g/L~0.15g/L is added into vegetable seed skin, ensures that vegetable seed skin is compound
Enzyme solutions flood, and then stir vegetable seed skin and composite enzyme solution, are filtered after digesting 150min~180min, obtain enzymolysis liquid and enzyme
Solve vegetable seed skin；
F5, the edible alcohol solution that mass concentration is 50g/L~100g/L is added into enzymolysis vegetable seed skin, edible alcohol solution
Liquid level is filtered higher than 10cm~15cm at the top of enzymolysis vegetable seed skin after extracting 120min~150min, obtain vegetable seed skin slag and
Second leaching liquor；
F6, the first leaching liquor and the second leaching liquor are mixed and be concentrated into water content be 6%~10%, obtain second subprime oil；
F7, first grade oil and second subprime oil are mixed and is refined, obtain two level rape oil.
2. according to claim 1 a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, it is characterised in that：Step
In F3 and F6, heating concentration is carried out to material using vacuum decker, and the water and edible alcohol that are evaporated when concentrating are recycled.
3. according to claim 1 a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, it is characterised in that：In step
In rapid F4, complex enzyme type and mass ratio in composite enzyme solution are protease：Amylase：Cellulase：Pectase=（2.5~
3.2）：（2.3~2.9）：（1.5~2.5）：（1.7~2.6）, enzyme activity is 3000~3100U/mg.
4. according to claim 1 a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, it is characterised in that：It will step
The vegetable seed skin slag mixed fermentation that the dregs of fat that rapid F2 is obtained are obtained with step F5, obtains concentrated feed.
5. according to claim 1 a kind of using rapeseed dehulled as the cold pressing method for producing oil of raw material, it is characterised in that：Step
It in F2 and F5, is extracted in the container with ultrasonic transmitter, supersonic generator sends out ultrasound to solution when extraction
Wave.
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