CN106995746A - A kind of production method of giving off a strong fragrance rapeseed oil - Google Patents
A kind of production method of giving off a strong fragrance rapeseed oil Download PDFInfo
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- CN106995746A CN106995746A CN201710291537.1A CN201710291537A CN106995746A CN 106995746 A CN106995746 A CN 106995746A CN 201710291537 A CN201710291537 A CN 201710291537A CN 106995746 A CN106995746 A CN 106995746A
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- vegetable seed
- rapeseed oil
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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
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D9/00—Other edible oils or fats, e.g. shortenings, cooking oils
- A23D9/02—Other edible oils or fats, e.g. shortenings, cooking oils characterised by the production or working-up
-
- 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
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Fats And Perfumes (AREA)
- Seeds, Soups, And Other Foods (AREA)
Abstract
The present invention relates to a kind of edible Method for treatment of oil, especially a kind of production method of giving off a strong fragrance rapeseed oil, selected vegetable seed then, grinding butter, erucic acid is removed in gradually decompression processing, add complex enzyme liquid stirring enzymolysis, after drying, vegetable seed sauce is tentatively squeezed, squeezing mixture is placed in and treats that concussion is handled at 90 92 DEG C in container made of iron, by expressate natural sedimentation 180 190 minutes in the environment of vacuum is 2 3Pa, collect upper strata clarified oil liquid, it is contained in encapsulate in air-tight bottle and preserves, present invention process makes the fragrance matter that rapeseed oil remains vegetable seed to greatest extent, and process is without high temperature, dissolvent residual, it has been sufficiently reserved the nutritive value of vegetable seed.
Description
Technical field
The present invention relates to a kind of edible Method for treatment of oil, especially a kind of production method of giving off a strong fragrance rapeseed oil.
Background technology
Rapeseed oil is the liquid for the transparent or semitransparent shape that gained is pressed with the seed of crucifer rape (i.e. rape)
Body, is one of China's main edible oil, and main product occupies first place in the world in the ground such as the Yangtze river basin and southwest, northwest, yield, vegetable seed oil colours
Pool is golden yellow or pale brown, and human body is very high to the absorptivity of rapeseed oil, up to 99%, therefore the unsaturated fat such as the linoleic acid contained by it
The nutritional ingredient such as acid and vitamin E can be absorbed by organisms well, have effects that certain softening blood vessel, anti-aging.
Current rapeseed oil conventional fabrication process is main to be ground by stir-fry seed, mill, steams base, bag cake, squeezes this few road master operation group
Into the dissolution of vegetable seed fragrance is insufficient in manufacturing process, and it is larger to scatter and disappear, and resulting rapeseed oil fragrance is not dense enough, and finished product is deposited
More than 3 months fragrance is put largely to scatter and disappear.
The content of the invention
It is an object of the invention to provide a kind of production method of giving off a strong fragrance rapeseed oil.
The technical solution adopted by the present invention is that a kind of production method of giving off a strong fragrance rapeseed oil is comprised the following steps that,
（1）It is selected then without flat seed, without going mouldy, the vegetable seed of free from insect pests, through removal of impurities, clean, dry it is stand-by；
（2）Temperature be 5-8 DEG C, hydrogen content for more than 55% environment in vegetable seed carry out grinding butter, temperature be 60-68 DEG C,
Initial pressure is gradually decompression processing under conditions of 50MPa, per 10-15 minutes clock decompression 5MPa, until being depressurized to 5MPa；
（3）2-3 is pressed into vegetable seed sauce:1 volume ratio adds at complex enzyme liquid, 20-25 DEG C and seals stir process, and stir speed (S.S.) is
50-60r/min, the stir process time is 120-122 minutes, and gala sugar aqueous solution of the complex enzyme liquid using concentration as 1-2% is molten
Agent, adds cellulase, 1-1.5% ratio adds hemicellulase, 1-2% ratio adds lignin in 2-3% ratio
The ratio addition protease of enzyme, 10-12%；
（4）Vegetable seed sauce is dried at a temperature of 35-40 DEG C to center moisture and is less than 12%, vegetable seed sauce is tentatively squeezed, is pressed
Power is squeezed for 3-5MPa, press residue is well mixed again with expressed oil after squeezing, expressate is obtained；
（5）Container made of iron is immersed into concentration to be handled 40-50 minutes in 8-10% salt solution, the rapid drying table at 180-200 DEG C
Face moisture, and container made of iron central temperature is risen to 120-125 DEG C and is incubated, it is thin in the sprinkling one of container made of iron inner homogeneous rapidly
Layer lard, treats that container made of iron central temperature is down to 90-92 DEG C of insulation, and expressate is poured into container made of iron at progress concussion
Reason；
（6）By expressate natural sedimentation 180-190 minute in the environment of vacuum is 2-3Pa, upper strata clarified oil liquid, Sheng are collected
Preserved loaded on being encapsulated in air-tight bottle.
It is preferred that, vegetable seed grinding butter fineness is 180-200 mesh.
It is preferred that, cellulase, hemicellulase, lignoenzyme, proteinase activity are all higher than 5000U/ml.
It is preferred that, container made of iron thickness is 2-2.5mm.
It is preferred that, vegetable seed pours into 1/3 that ratio is container made of iron volume.
It is preferred that, concussion frequency is 60-70HZ during concussion processing, and amplitude is 5-7cm, and concussion processing time is 40-46 points
Clock.
It is preferred that, air-tight bottle material is aluminium.
Specific committed step of the invention is as follows,
It it is 5-8 DEG C in temperature, hydrogen content, to carry out grinding butter to vegetable seed in more than 55% environment, is 60-68 DEG C, just in temperature
Beginning pressure was gradually decompression processing under conditions of 50MPa, per 10-15 minutes clock decompression 5MPa, until 5MPa is depressurized to, this decompression
Most of erucic acid can be vapored away in processing procedure vegetable seed sauce, and erucic acid clearance substantially increases vegetable seed up to more than 92% in vegetable seed sauce
The edible safety of oil；
2-3 is pressed into vegetable seed sauce:1 volume ratio adds at complex enzyme liquid, 20-25 DEG C and seals stir process, and stir speed (S.S.) is 50-
60r/min, the stir process time is 120-122 minutes, substantially increases the oil yield of vegetable seed, and be favorably improved in rapeseed oil
The ratio of brassicasterol；
Press residue is well mixed again with expressed oil after vegetable seed squeezing, container made of iron is placed in and concussion is incubated at 90-92 DEG C
Processing, fully oozes out beneficial to fragrance matter, dissolves in rapeseed oil, before container made of iron heats to vegetable seed, with 8-10% salt solution
To its immersion treatment, the thermal uniformity of container made of iron can be improved, a thin layer lard, effectively lock are sprayed in container made of iron inner homogeneous
Firmly in vegetable seed more than 95% the fragrance factor, it is to avoid fragrance be lost in；
The natural sedimentation in the environment of vacuum is 2-3Pa of squeezing mixture accelerates settling rate, hence it is evident that when shortening precipitation
Between, the higher product of transparency can be obtained within the shorter sedimentation time, fragrance matter during long-time natural sedimentation is prevented
Volatilization loss；
The finished product rapeseed oil finally given is encapsulated with aluminium vessel, helps to prevent rapeseed oil from aoxidizing, and reduces vegetable seed salted cake fried in sesame oil
The volatilization of the taste factor, it is ensured that rapeseed oil still keeps preserving 1 year under natural flavor, rapeseed oil normal condition in storage process,
Loss of aroma rate is less than 5%.
Present invention process makes rapeseed oil and remains the fragrance matter of vegetable seed to greatest extent, and process without high temperature,
Dissolvent residual, has been sufficiently reserved the nutritive value of vegetable seed.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described,
Embodiment 1, a kind of production method of giving off a strong fragrance rapeseed oil, are comprised the following steps that,
（1）It is selected then without flat seed, without going mouldy, the vegetable seed of free from insect pests, through removal of impurities, clean, dry it is stand-by；
（2）It it is 5 DEG C in temperature, hydrogen content is carries out grinding butter to vegetable seed in more than 55% environment, vegetable seed grinding butter fineness is 180
Mesh, temperature be 60 DEG C, initial pressure be that gradually decompression is handled under conditions of 50MPa, every 10 minutes clocks are depressured 5MPa, until drop
It is depressed into 5MPa；
（3）2 are pressed into vegetable seed sauce:1 volume ratio adds at complex enzyme liquid, 20 DEG C and seals stir process, and stir speed (S.S.) is 50r/
Min, the stir process time be 120 minutes, complex enzyme liquid using concentration be 1% gala sugar aqueous solution as solvent, add in 2% ratio
Plus cellulase, 1% ratio addition hemicellulase, 1% ratio addition lignoenzyme, 10% ratio addition protease, it is fine
The plain enzyme of dimension, hemicellulase, lignoenzyme, proteinase activity are all higher than 5000U/ml；
（4）Vegetable seed sauce is dried at a temperature of 35 DEG C to center moisture and is less than 12%, vegetable seed sauce is tentatively squeezed, is squeezed
Pressure is 3MPa, is well mixed press residue again with expressed oil after squeezing, obtains expressate；
（5）It is that 2mm containers made of iron immerse processing 40 minutes in the salt solution that concentration is 8% by thickness, the rapid drying table at 180 DEG C
Face moisture, and container made of iron central temperature is risen to 120 DEG C and is incubated, spray a thin layer pig in container made of iron inner homogeneous rapidly
Oil, treats that container made of iron central temperature is down to 90 DEG C of insulations, and expressate is poured into progress concussion processing in container made of iron, and vegetable seed falls
It is the 1/3 of container made of iron volume to enter ratio, and concussion frequency is 60HZ during concussion processing, and amplitude is 5cm, and it is 40 to shake processing time
Minute；
（6）By expressate natural sedimentation 180 minutes in the environment of vacuum is 2Pa, upper strata clarified oil liquid is collected, aluminium is contained in
Encapsulate and preserve in matter air-tight bottle.
Embodiment 2, a kind of production method of giving off a strong fragrance rapeseed oil, are comprised the following steps that,
（1）It is selected then without flat seed, without going mouldy, the vegetable seed of free from insect pests, through removal of impurities, clean, dry it is stand-by；
（2）It it is 8 DEG C in temperature, hydrogen content is carries out grinding butter to vegetable seed in more than 55% environment, vegetable seed grinding butter fineness is 200
Mesh, temperature be 68 DEG C, initial pressure be that gradually decompression is handled under conditions of 50MPa, every 15 minutes clocks are depressured 5MPa, until drop
It is depressed into 5MPa；
（3）3 are pressed into vegetable seed sauce:1 volume ratio adds at complex enzyme liquid, 25 DEG C and seals stir process, and stir speed (S.S.) is 60r/
Min, the stir process time be 122 minutes, complex enzyme liquid using concentration be 2% gala sugar aqueous solution as solvent, add in 3% ratio
Plus cellulase, 1.5% ratio addition hemicellulase, 2% ratio addition lignoenzyme, 12% ratio addition protease,
Cellulase, hemicellulase, lignoenzyme, proteinase activity are all higher than 5000U/ml；
（4）Vegetable seed sauce is dried at a temperature of 0 DEG C to center moisture and is less than 12%, vegetable seed sauce is tentatively squeezed, squeezing pressure
Power is 5MPa, is well mixed press residue again with expressed oil after squeezing, obtains expressate；
（5）It is that 2.5mm containers made of iron immerse processing 50 minutes in the salt solution that concentration is 10% by thickness, is dried rapidly at 200 DEG C
Surface moisture, and container made of iron central temperature is risen to 125 DEG C and is incubated, spray a thin layer in container made of iron inner homogeneous rapidly
Lard, treats that container made of iron central temperature is down to 92 DEG C of insulations, and expressate is poured into progress concussion processing, vegetable seed in container made of iron
Pour into ratio be container made of iron volume 1/3, concussion processing when concussion frequency be 70HZ, amplitude is 7cm, concussion processing time be
46 minutes；
（6）By expressate natural sedimentation 190 minutes in the environment of vacuum is 3Pa, upper strata clarified oil liquid is collected, aluminium is contained in
Encapsulate and preserve in matter air-tight bottle.
Embodiment 3, a kind of production method of giving off a strong fragrance rapeseed oil, are comprised the following steps that,
（1）It is selected then without flat seed, without going mouldy, the vegetable seed of free from insect pests, through removal of impurities, clean, dry it is stand-by；
（2）It it is 7 DEG C in temperature, hydrogen content is carries out grinding butter to vegetable seed in more than 55% environment, vegetable seed grinding butter fineness is 190
Mesh, temperature be 65 DEG C, initial pressure be that gradually decompression is handled under conditions of 50MPa, every 12 minutes clocks are depressured 5MPa, until drop
It is depressed into 5MPa；
（3）2.5 are pressed into vegetable seed sauce:1 volume ratio adds at complex enzyme liquid, 22 DEG C and seals stir process, and stir speed (S.S.) is
55r/min, the stir process time be 121 minutes, complex enzyme liquid using concentration be 1.5% gala sugar aqueous solution as solvent, by 2.5%
Ratio addition cellulase, 1.3% ratio addition hemicellulase, 1.4% ratio addition lignoenzyme, 11% ratio
Protease is added, cellulase, hemicellulase, lignoenzyme, proteinase activity are all higher than 5000U/ml；
（4）Vegetable seed sauce is dried at a temperature of 38 DEG C to center moisture and is less than 12%, vegetable seed sauce is tentatively squeezed, is squeezed
Pressure is 4MPa, is well mixed press residue again with expressed oil after squeezing, obtains expressate；
（5）It is that 2.3mm containers made of iron immerse processing 44 minutes in the salt solution that concentration is 9% by thickness, is dried rapidly at 190 DEG C
Surface moisture, and container made of iron central temperature is risen to 122 DEG C and is incubated, spray a thin layer in container made of iron inner homogeneous rapidly
Lard, treats that container made of iron central temperature is down to 91 DEG C of insulations, and expressate is poured into progress concussion processing, vegetable seed in container made of iron
Pour into ratio be container made of iron volume 1/3, concussion processing when concussion frequency be 66HZ, amplitude is 6cm, concussion processing time be
42 minutes；
（6）By expressate natural sedimentation 188 minutes in the environment of vacuum is 2.5Pa, upper strata clarified oil liquid is collected, is contained in
Encapsulate and preserve in aluminum air-tight bottle.
Below in conjunction with instantiation contrast test, the present invention is further described；
Experiment vegetable seed used is produced vegetable seed by the same place of production then, be randomly divided into experimental group, routine group, control group 1, control group 2,
Control group 3, control group 4, control group 5, control group 6, control group 7, control group 8 amount to 8 groups, every group of 5kg；
Wherein experimental group processes acquisition rapeseed oil using the mode of embodiment 3；
Conventional group obtains rapeseed oil according to conventional machining mode；
The cancellation step on the basis of embodiment 3 of control group 1（2）；
Refining process is substituted for conventional refining process by control group 2 on the basis of embodiment 3；
Control group 3 is cancelled on the basis of embodiment 3 immerses concentration to be handled 45 minutes in 9% salt solution by container made of iron,
Rapid drying surface moisture at 190 DEG C, and container made of iron central temperature is risen to 122 DEG C and is incubated, rapidly in container made of iron
Uniformly spray a thin layer lard in portion；
Complex enzyme liquid is substituted for water by control group 4；
The settlement treatment under natural environment by vegetable seed sauce of control group 5；
Aluminum sealing container is substituted for vial by control group 6；
Finally the content of erucic acid of the rapeseed oil obtained by each group, brassicasterol, fragrance, oil yield are evaluated；
Wherein content of erucic acid, brassicasterol content are detected using usual manner, and fragrance is determined using professional sensory test mode, is commented
Divide 0 point of minimum, 10 points of highest, as a result see the table below 1：
| Group | Experimental group | Conventional group | Control group 1 | Control group 2 | Control group 3 | Control group 4 | Control group 5 | Control group 6 |
| Content of erucic acid（%） | 1.6 | 5.8 | 5.6 | 1.8 | 1.6 | 1.5 | 1.6 | 1.6 |
| Brassicasterol（%） | 0.82 | 0.47 | 0.80 | 0.77 | 0.80 | 0.49 | 0.75 | 0.82 |
| Fragrance scores | 9.8 | 7.7 | 8.5 | 8.9 | 8.2 | 9.5 | 8.0 | 9.8 |
| Oil yield（%） | 50.2 | 38.5 | 50.0 | 50.2 | 40.4 | 47.3 | 50.5 | 50.2 |
Rapeseed oil obtained by experimental group and control group 6 is preserved 1 year under normal temperature environment, again to two groups of peroxide values, phosphorus
Fat content, fragrance are evaluated, and as a result see the table below 2：
| Group | Experimental group | Control group 6 |
| Peroxide value（mmol/ kg） | 0.55 | 10.8 |
| Brassicasterol（%） | 0.79 | 0.44 |
| Fragrance scores | 9.2 | 5.5 |
As seen from the above table, concrete technology design of the present invention has aobvious to improving brassicasterol content, fragrance in vegetable seed oil yield, grease
Help is write, and has positive effect to reduction rapeseed oil content of erucic acid, rapeseed oil is packaged using aluminium vessel, more can be effective
Storage period rapeseed oil is delayed to aoxidize, fragrance scatters and disappears.
Claims (7)
1. a kind of production method of giving off a strong fragrance rapeseed oil, it is characterised in that comprise the following steps that,
（1）It is selected then without flat seed, without going mouldy, the vegetable seed of free from insect pests, through removal of impurities, clean, dry it is stand-by；
（2）Temperature be 5-8 DEG C, hydrogen content for more than 55% environment in vegetable seed carry out grinding butter, temperature be 60-68 DEG C,
Initial pressure is gradually decompression processing under conditions of 50MPa, per 10-15 minutes clock decompression 5MPa, until being depressurized to 5MPa；
（3）2-3 is pressed into vegetable seed sauce:1 volume ratio adds at complex enzyme liquid, 20-25 DEG C and seals stir process, and stir speed (S.S.) is
50-60r/min, the stir process time is 120-122 minutes, and gala sugar aqueous solution of the complex enzyme liquid using concentration as 1-2% is molten
Agent, adds cellulase, 1-1.5% ratio adds hemicellulase, 1-2% ratio adds lignin in 2-3% ratio
The ratio addition protease of enzyme, 10-12%；
（4）Vegetable seed sauce is dried at a temperature of 35-40 DEG C to center moisture and is less than 12%, vegetable seed sauce is tentatively squeezed, is pressed
Power is squeezed for 3-5MPa, press residue is well mixed again with expressed oil after squeezing, expressate is obtained；
（5）Container made of iron is immersed into concentration to be handled 40-50 minutes in 8-10% salt solution, the rapid drying table at 180-200 DEG C
Face moisture, and container made of iron central temperature is risen to 120-125 DEG C and is incubated, it is thin in the sprinkling one of container made of iron inner homogeneous rapidly
Layer lard, treats that container made of iron central temperature is down to 90-92 DEG C of insulation, and expressate is poured into container made of iron at progress concussion
Reason；
（6）By expressate natural sedimentation 180-190 minute in the environment of vacuum is 2-3Pa, upper strata clarified oil liquid, Sheng are collected
Preserved loaded on being encapsulated in air-tight bottle.
2. a kind of production method of giving off a strong fragrance rapeseed oil according to claim 1, it is characterised in that
Vegetable seed grinding butter fineness is 180-200 mesh.
3. a kind of production method of giving off a strong fragrance rapeseed oil according to claim 1, it is characterised in that
Cellulase, hemicellulase, lignoenzyme, proteinase activity are all higher than 5000U/ml.
4. a kind of production method of giving off a strong fragrance rapeseed oil according to claim 1, it is characterised in that
Container made of iron thickness is 2-2.5mm.
5. a kind of production method of giving off a strong fragrance rapeseed oil according to claim 1 or 5, it is characterised in that
Vegetable seed pours into 1/3 that ratio is container made of iron volume.
6. a kind of production method of giving off a strong fragrance rapeseed oil according to claim 1, it is characterised in that
Concussion frequency is 60-70HZ during concussion processing, and amplitude is 5-7cm, and concussion processing time is 40-46 minutes.
7. a kind of production method of giving off a strong fragrance rapeseed oil according to claim 1, it is characterised in that
Air-tight bottle material is aluminium.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559367A (en) * | 2012-02-27 | 2012-07-11 | 东北农业大学 | Method for extracting sesame oil |
| CN104946380A (en) * | 2015-06-26 | 2015-09-30 | 蚌埠市江淮粮油有限公司 | Method for preparing aromatic rapeseed oil |
| CN105623832A (en) * | 2014-10-30 | 2016-06-01 | 江苏天琦生物科技有限公司 | Production method for preparing double-low rapeseed oil by biological enzyme method |
-
2017
- 2017-04-28 CN CN201710291537.1A patent/CN106995746A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559367A (en) * | 2012-02-27 | 2012-07-11 | 东北农业大学 | Method for extracting sesame oil |
| CN105623832A (en) * | 2014-10-30 | 2016-06-01 | 江苏天琦生物科技有限公司 | Production method for preparing double-low rapeseed oil by biological enzyme method |
| CN104946380A (en) * | 2015-06-26 | 2015-09-30 | 蚌埠市江淮粮油有限公司 | Method for preparing aromatic rapeseed oil |
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