CN107212107A - A kind of health care Rice oil and its method of refining - Google Patents
A kind of health care Rice oil and its method of refining Download PDFInfo
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- CN107212107A CN107212107A CN201710572708.8A CN201710572708A CN107212107A CN 107212107 A CN107212107 A CN 107212107A CN 201710572708 A CN201710572708 A CN 201710572708A CN 107212107 A CN107212107 A CN 107212107A
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- 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
- A23D9/007—Other edible oils or fats, e.g. shortenings, cooking oils characterised by ingredients other than fatty acid triglycerides
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- 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
- A23D9/04—Working-up
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
- C11C3/04—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils
- C11C3/06—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom by esterification of fats or fatty oils with glycerol
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Abstract
The invention provides a kind of health care Rice oil and its method of refining.By percentage to the quality, health care Rice oil includes 35% 42% oleic acid, 32% 38% linoleic acid, 2.1% 2.5% oryzanol, 0.1 0.2% vitamin As, 0.2 0.4% γ Hi-Zs, 0.5% 2.0% protease, 0.5% 2.0% serines, and surplus is saturated fatty acid.Method of refining is：It is 1 in mass ratio by rice crude oil and glycerine：（0.01‑0.05）Mixing, add magnetic nano-catalyst to be esterified, the oleic acid in Rice oil, linoleic acid, oryzanol, γ Hi-Zs and vitamin A are leached by magnetic agitation, crude oil mixture is obtained, it is then centrifuged for, filters, isolates the primary Rice oil containing micro magnetic nano-catalyst；Subsequent activated carbon is decolourized, and is placed in magnetic field and is separated micro magnetic nano-catalyst, then adds protease and serine, obtains health care Rice oil.
Description
Technical field
The invention belongs to grease deep processing technology field, it is related to a kind of health care Rice oil and its method of refining.
Background technology
Rice oil is commonly called as rice bran oil, is the accessory substance rice skin that rice is produced in white process is rolled over, through squeezing or leaching
Crude oil is made in technique, the product then obtained after further refining (physical refining or chemical refining) processing.Due to its fat
Acid composition degree of unsaturation is high, linoleic acid and 42% or so oleic acid containing about 38% or so, the ratio of its linoleic acid and oleic acid
About 1：1.1, and rich in bioactive substances such as oryzanol, sterol, tocopherol, squalenes, be conducive to the absorption of human body, have
Remove cholesterol, reduction blood fat, prevention of cardiovascular disease, anti-oxidant, anti-aging, strengthen immunity, the promotion human body in blood
The effects such as growing, and as nutrient health oil generally acknowledged both at home and abroad.It is noted that oryzanol is one of Rice oil
The content of oryzanol is 2.5% or so in characteristic index, rice crude oil.Current Rice oil is by the extensive pass of countries in the world
Note, as the another edible oil after sunflower oil, maize germ oil.
But be due to rice crude oil acid value it is higher, color and luster is deeper, and the impurity component such as colloid, wax, solid fat is complicated, leads to
It is high-grade, larger rich in the high Rice oil difficulty of fat-soluble nutrients composition, stability to obtain to cross refining.
In current Rice oil process, the method for alkali refining or physical deacidification is generally taken to carry out depickling.Its deficiency
Place be alkali refining in addition to causing neutral oil largely to lose and a large amount of waste water can be produced, also the content of oryzanol can be caused to drop significantly
Low, so that oryzanol content is extremely low in product Rice oil, nutritive value is had a greatly reduced quality；The weak point of physical deacidification is energy consumption
Height, while being also easy to produce trans-fatty acid in prolonged pyroprocess, has potential hazard to health.In the normal of Rice oil
Advise in refinery practice, the method decolourized generally using bleaching earth adsorption, weak point is except that can cause the loss of neutral oil, take off
The further harmless processing of color soil is also a big burden of manufacturer.In addition, the Rice oil color and luster after decolouring is difficult
The standard of GB19112-2003 primary oils is reached, this is also the reason for rice bran oil overwhelming majority of in the market is level Four oil place.
Such as Publication No. CN101455242A and CN102690723A Chinese patent application is disclosed by being carried out to Rice bran crude oil
Refining can obtain edible rice bran oil, but be due to that depickling temperature is higher, and patent application CN101455242A is used
Twice alkali-refining process, it is to nutrient component damages such as the tocopherol in rice bran oil, sterol, oryzanol larger.
From the foregoing, it will be observed that rice crude oil in refining process because being influenceed by temperature, alkali environment etc., linoleic acid therein, flax
Acid, arachidonic acid are easily oxidized, and the nutrient component damages such as tocopherol, sterol, oryzanol are larger.In addition, Rice oil exists
In storing process, it is easy to occur oxidative deformation, healthcare function is lost, does not also possess oxidation resistance.
Therefore, a kind of new method of refining is found, is the important prerequisite for opening Rice oil market.
The content of the invention
In view of the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of health care Rice oil and its refining side
Method.The health care Rice oil is rich in oryzanol isoreactivity material, with good inoxidizability.The method of refining is simple, and in essence
Infringement during refining to Rice oil nutritional ingredient is smaller.
In order to achieve the above object, the present invention provides a kind of health care Rice oil, by percentage to the quality, the health care rice
Oil include 35%-42% oleic acid, 32%-38% linoleic acid, 2.1%-2.5% oryzanol, 0.1-0.2% vitamin As, 0.2-0.4% γ-
Hi-Z, 0.5%-2.0% protease, 0.5%-2.0% serines, surplus is saturated fatty acid.
Preferably, the health care Rice oil includes 42% oleic acid, 38% linoleic acid, 2.5% oryzanol, 0.2% vitamin A,
0.4% γ-Hi-Z, 1.5% protease, 2.0% serine, surplus is saturated fatty acid.
Preferably, color≤5.0R of the health care Rice oil.
The present invention also provides the method for refining of above-mentioned health care Rice oil, and it comprises the following steps：
It is 1 in mass ratio by rice crude oil and glycerine：（0.01-0.05）Mixing, then adds magnetic nano-catalyst and carries out ester
Change, and soaked the oleic acid in the Rice oil, linoleic acid, oryzanol, γ-Hi-Z and vitamin A by magnetic agitation
Go out, obtain crude oil mixture；
The crude oil mixture is centrifuged, filtered, the primary Rice oil containing micro magnetic nano-catalyst is isolated；
The primary Rice oil is carried out by decolorization using activated carbon, is subsequently placed in magnetic field and is isolated the micro magnetic and receive
Rice catalyst, obtains high-purity Rice oil；
Protease and serine are added into high-purity Rice oil, health care Rice oil is obtained.
Above-mentioned magnetic nano-catalyst can be prepared using this area conventional method.
Preferably, the magnetic carrier of the magnetic nano-catalyst is Fe3O4, nano active catalyst include MnO2、
MnOOH、Mn2O3、Mn3O4、Nd2O3、ZnO2、Sm2O3、Gd2O3And TiO2In one or more of combinations.
Preferably, the nano active catalyst is β-MnO2Nanometer rods.
Preferably, the reaction temperature of the esterification is 200 DEG C -300 DEG C, and the time is 2h-4h, and pressure is 1.0-1.5MPa,
The esterification is carried out in protection gas.
Preferably, the rotating speed of the magnetic agitation is 500rpm/min-1000rpm/min.
Preferably, the consumption of the magnetic nano-catalyst is the 1%-1.5% of the rice crude oil quality.
Preferably, also include to high-purity rice before protease and serine is added into high-purity Rice oil
The step of oryzanol, γ-Hi-Z and vitamin A being added in oil.
Compared with prior art, the prominent beneficial effect of the present invention is：
The oleic acid and linoleic acid ratio for the health care Rice oil that the present invention is provided are close to 1:1, and rich in oryzanol, vitamin, serine,
The nutritional ingredients such as protease, are conducive to the absorption of human body, can remove the cholesterol in blood, reduce blood fat, prevention of cardiovascular disease
Sick, anti-oxidant, anti-aging, strengthen immunity.
The health care Rice oil method of refining that the present invention is provided, using catalyst magnetize esterification leach Rice oil in nutrition into
Point, it is to avoid the destruction for the nutritional ingredient that conventional deacidification process for dewaxing is caused, technological process is simple, and adds fat-soluble egg
White enzyme, serine improve inoxidizability, in addition, nanometer magnetic catalyst can be economic and environment-friendly with recycle and reuse.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention
Scope be only limitted to following example.In the case where not departing from above method thought of the present invention, according to ordinary skill
Various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A kind of method of refining of Rice oil is present embodiments provided, it comprises the following steps：
By rice bran crude oil, glycerine and β-MnO2Nanometer rods/Fe3O4Magnetic catalyst is 1 in mass ratio:0.01：0.01 mixing, so
Afterwards by magnetic stirrer, in nitrogen protection gas, esterification 3h, esterification temperature is 220 DEG C, and pressure is 1.0MPa,
During esterification, the rotating speed of magnetic stirring apparatus is 600rpm/min, and magnetic agitation is by the oleic acid in rice bran oil, linoleic acid, paddy
Dimension element, γ-Hi-Z and vitamin A are leached, and obtain crude oil mixture；
Then the crude oil mixture is placed in a centrifuge and centrifuged, colloid, β-MnO are isolated after filtering2Nanometer rods/
Fe3O4Magnetic catalyst and a small amount of aliphatic acid, are obtained containing micro β-MnO2Nanometer rods/Fe3O4At the beginning of magnetic nano-catalyst
Level Rice oil；
Using activated carbon by primary rice oil decolorization, the deodorization, the micro β-MnO in part are fallen in absorption2Nanometer rods/Fe3O4Magnetic Nano
Catalyst and then the Rice oil for treating activated carbon are placed in the β-MnO that the place of being completely separated is remained in magnetic field2Nanometer rods/Fe3O4Magnetic
Property nanocatalyst, obtains high-purity Rice oil；
Protease, serine are added into high-purity Rice oil, a kind of anti-oxidant, anti-aging health care Rice oil is obtained,
Wherein, the addition of protease and serine is per addition 5kg protease, 5kg serines in the high-purity Rice oils of 1000kg.
After tested, the color of health care Rice oil made from the present embodiment is 3.5R, wherein, by percentage to the quality, the guarantor
Strong Rice oil includes following component：40% oleic acid, 36% linoleic acid, 2.3 oryzanol, 0.15% vitamin A, 0.3% γ-Hi-Z,
0.5% protease, 0.5%% serine, surplus is saturated fatty acid.
Embodiment 2
A kind of method of refining of Rice oil is present embodiments provided, it comprises the following steps：
By rice bran crude oil, glycerine and ZnO2/Fe3O4Magnetic catalyst is 1 in mass ratio:0.02：0.01 mixing, then passes through magnetic
Power agitator is stirred, and in nitrogen protection gas, esterification 3h, esterification temperature is 220 DEG C, and pressure is 1.0MPa, esterification
Period, the rotating speed of magnetic stirring apparatus is 600rpm/min, magnetic agitation by the oleic acid in rice bran oil, linoleic acid, oryzanol, γ-
Hi-Z and vitamin A are leached, and obtain crude oil mixture；
Then the crude oil mixture is placed in a centrifuge and centrifuged, colloid, ZnO are isolated after filtering2/Fe3O4Magnetic is urged
Agent and a small amount of aliphatic acid, are obtained containing trace Zn O2/Fe3O4The primary Rice oil of magnetic nano-catalyst；
Using activated carbon by primary rice oil decolorization, the deodorization, part trace Zn O is fallen in absorption2/Fe3O4Magnetic nano-catalyst is right
The Rice oil that activated carbon is treated afterwards is placed in the ZnO that the place of being completely separated is remained in magnetic field2/Fe3O4Magnetic nano-catalyst, is obtained
To high-purity Rice oil；
Protease, serine are added into high-purity Rice oil, a kind of anti-oxidant, anti-aging health care Rice oil is obtained,
Wherein, the addition of protease and serine is per addition 5kg protease, 5kg serines in the high-purity Rice oils of 1000kg.
After tested, the color of health care Rice oil made from the present embodiment is 3.0R, wherein, by percentage to the quality, the guarantor
Strong Rice oil includes following component：38% oleic acid, 34% linoleic acid, 2.1 oryzanol, 0.1% vitamin A, 0.2% γ-Hi-Z,
0.5% protease, 0.5%% serine, surplus is saturated fatty acid.
Embodiment 3
A kind of method of refining of Rice oil is present embodiments provided, it comprises the following steps：
By rice bran crude oil, glycerine and β-MnO2Nanometer rods/Fe3O4Magnetic catalyst is 1 in mass ratio:0.03：0.01 mixing, so
Afterwards by magnetic stirrer, in nitrogen protection gas, esterification 3h, esterification temperature is 220 DEG C, and pressure is 1.0MPa,
During esterification, the rotating speed of magnetic stirring apparatus is 800rpm/min, and magnetic agitation is by the oleic acid in rice bran oil, linoleic acid, paddy
Dimension element, γ-Hi-Z and vitamin A are leached, and obtain crude oil mixture；
Then the crude oil mixture is placed in a centrifuge and centrifuged, colloid, β-MnO are isolated after filtering2Nanometer rods/
Fe3O4Magnetic catalyst and a small amount of aliphatic acid, are obtained containing micro β-MnO2Nanometer rods/Fe3O4At the beginning of magnetic nano-catalyst
Level Rice oil；
Using activated carbon by primary rice oil decolorization, the deodorization, the micro β-MnO in part are fallen in absorption2Nanometer rods/Fe3O4Magnetic Nano
Catalyst and then the Rice oil for treating activated carbon are placed in the β-MnO that the place of being completely separated is remained in magnetic field2Nanometer rods/Fe3O4Magnetic
Property nanocatalyst, obtains high-purity Rice oil；
Protease, serine are added into high-purity Rice oil, a kind of anti-oxidant, anti-aging health care Rice oil is obtained,
Wherein, 5kg protease is added during the addition of protease and serine is per 1000kg high-purity Rice oils, 5kg serines,
1kg oryzanol, 1kg γ-Hi-Z, 2kg vitamin As.
After tested, the color of health care Rice oil made from the present embodiment is 2.5R, wherein, by percentage to the quality, the guarantor
Strong Rice oil includes following component：42% oleic acid, 38% linoleic acid, 2.5% oryzanol, 0.2% vitamin A, 0.4% γ-paddy dimension
Alcohol, 0.5% protease, 0.5% serine, surplus is saturated fatty acid.
Embodiment 4
A kind of method of refining of Rice oil is present embodiments provided, it comprises the following steps：
By rice bran crude oil, glycerine and MnOOH/Fe3O4Magnetic catalyst is 1 in mass ratio:0.04：0.01 mixing, then passes through
Magnetic stirrer, in nitrogen protection gas, esterification 3h, esterification temperature is 220 DEG C, and pressure is 1.0MPa, and esterification is anti-
Should during, the rotating speed of magnetic stirring apparatus is 600rpm/min, magnetic agitation by the oleic acid in rice bran oil, linoleic acid, oryzanol,
γ-Hi-Z and vitamin A are leached, and obtain crude oil mixture；
Then the crude oil mixture is placed in a centrifuge and centrifuged, colloid, MnOOH/Fe are isolated after filtering3O4Magnetic
Catalyst and a small amount of aliphatic acid, are obtained containing micro MnOOH/Fe3O4The primary Rice oil of magnetic nano-catalyst；
Using activated carbon by primary rice oil decolorization, the deodorization, the micro MnOOH/Fe in part is fallen in absorption3O4Magnetic nano-catalyst
Then Rice oil activated carbon treated is placed in the MnOOH/Fe that the place of being completely separated is remained in magnetic field3O4Magnetic nano-catalyst,
Obtain high-purity Rice oil；
Protease, serine are added into high-purity Rice oil, a kind of anti-oxidant, anti-aging health care Rice oil is obtained,
Wherein, the addition of protease and serine is per addition 5kg protease, 5kg serines in the high-purity Rice oils of 1000kg.
After tested, the color of health care Rice oil made from the present embodiment is 4.0R, wherein, by percentage to the quality, the guarantor
Strong Rice oil includes following component：38% oleic acid, 35% linoleic acid, 2.1% oryzanol, 0.1% vitamin A, 0.2% γ-Hi-Z,
0.5%% protease, 0.5%% serine, surplus is saturated fatty acid.
Embodiment 5
A kind of method of refining of Rice oil is present embodiments provided, it comprises the following steps：
By rice bran crude oil, glycerine and MnOOH/Fe3O4Magnetic catalyst is 1 in mass ratio:0.05：0.01 mixing, then passes through
Magnetic stirrer, in nitrogen protection gas, esterification 3h, esterification temperature is 220 DEG C, and pressure is 1.0MPa, and esterification is anti-
Should during, the rotating speed of magnetic stirring apparatus is 600rpm/min, magnetic agitation by the oleic acid in rice bran oil, linoleic acid, oryzanol,
γ-Hi-Z and vitamin A are leached, and obtain crude oil mixture；
Then the crude oil mixture is placed in a centrifuge and centrifuged, colloid, MnOOH/Fe are isolated after filtering3O4Magnetic
Catalyst and a small amount of aliphatic acid, are obtained containing micro MnOOH/Fe3O4The primary Rice oil of magnetic nano-catalyst；
Using activated carbon by primary rice oil decolorization, the deodorization, the micro MnOOH/Fe in part is fallen in absorption3O4Magnetic nano-catalyst
Then Rice oil activated carbon treated is placed in the MnOOH/Fe that the place of being completely separated is remained in magnetic field3O4Magnetic nano-catalyst,
Obtain high-purity Rice oil；
Protease, serine are added into high-purity Rice oil, a kind of anti-oxidant, anti-aging health care Rice oil is obtained,
Wherein, 8kg protease is added during the addition of protease and serine is per 1000kg high-purity Rice oils, 8kg serines,
3kg oryzanol, 2kg γ-Hi-Z and 1kg vitamin As.
After tested, the color of health care Rice oil made from the present embodiment is 4.0R, wherein, by percentage to the quality, the guarantor
Strong Rice oil includes following component：38% oleic acid, 35% linoleic acid, 2.4% oryzanol, 0.2% vitamin A, 0.4% γ-Hi-Z,
0.8%% protease, 0.8%% serine, surplus is saturated fatty acid.
Embodiment 6
A kind of method of refining of Rice oil is present embodiments provided, it comprises the following steps：
By rice bran crude oil, glycerine and TiO2/Fe3O4Magnetic catalyst is 1 in mass ratio:1.3：0.01 mixing, then passes through magnetic force
Agitator is stirred, and in nitrogen protection gas, esterification 3h, esterification temperature is 220 DEG C, and pressure is 1.0MPa, esterification phase
Between, the rotating speed of magnetic stirring apparatus is 800rpm/min, and magnetic agitation is by the oleic acid in rice bran oil, linoleic acid, oryzanol, γ-paddy
Tie up alcohol and vitamin A is leached, obtain crude oil mixture；
Then the crude oil mixture is placed in a centrifuge and centrifuged, colloid, TiO are isolated after filtering2/Fe3O4Magnetic is urged
Agent and a small amount of aliphatic acid, are obtained containing trace Ti O2/Fe3O4The primary Rice oil of magnetic nano-catalyst；
Using activated carbon by primary rice oil decolorization, the deodorization, part trace Ti O is fallen in absorption2/Fe3O4Magnetic nano-catalyst is right
The Rice oil that activated carbon is treated afterwards is placed in the TiO that the place of being completely separated is remained in magnetic field2/Fe3O4Magnetic nano-catalyst, is obtained
To high-purity Rice oil；
Protease, serine are added into high-purity Rice oil, a kind of anti-oxidant, anti-aging health care Rice oil is obtained,
Wherein, 8kg protease is added during the addition of protease and serine is per 1000kg high-purity Rice oils, 8kg serines,
3kg oryzanol, 1kg vitamin As and 2kg γ-Hi-Z.
After tested, the color of health care Rice oil made from the present embodiment is 4.5R, wherein, by percentage to the quality, the guarantor
Strong Rice oil includes following component：36% oleic acid, 32% linoleic acid, 2.4 % oryzanol, 0.2% vitamin A, 0.3% γ-paddy dimension
Alcohol, 0.8% protease, 0.8% serine, surplus is saturated fatty acid.
In summary, the oleic acid of health care Rice oil and linoleic acid ratio that the present invention is provided are close to 1:1, and rich in oryzanol,
The nutritional ingredients such as vitamin, serine, protease, are conducive to the absorption of human body, can remove cholesterol, the reduction blood in blood
Fat, prevention of cardiovascular disease, anti-oxidant, anti-aging, strengthen immunity.Nutrition in Rice oil is leached using catalyst magnetization esterification
The method of refining of composition, it is to avoid the destruction for the nutritional ingredient that conventional deacidification process for dewaxing is caused, technological process is simple, and increase
Fat-soluble protease, serine improve inoxidizability, in addition, nanometer magnetic catalyst can be passed through with recycle and reuse
Ji environmental protection.
Claims (10)
1. a kind of health care Rice oil, by percentage to the quality, the health care Rice oil include the sub- oil of 35%-42% oleic acid, 32%-38%
Acid, 2.1%-2.5% oryzanol, 0.1-0.2% vitamin As, 0.2-0.4% γ-Hi-Z, 0.5%-2.0% protease, 0.5%-
2.0% serine, surplus is saturated fatty acid.
2. health care Rice oil according to claim 1, it is characterised in that：The health care Rice oil includes 42% oleic acid, 38%
Linoleic acid, 2.5% oryzanol, 0.2% vitamin A, 0.4% γ-Hi-Z, 1.5% protease, 2.0% serine, surplus is saturation
Aliphatic acid.
3. health care Rice oil according to claim 1, it is characterised in that：Color≤5.0R of the health care Rice oil.
4. the method for refining of any one of the claim 1-3 health care Rice oils, it comprises the following steps：
It is 1 in mass ratio by rice crude oil and glycerine：（0.01-0.05）Mixing, then adds magnetic nano-catalyst and carries out ester
Change, and soaked the oleic acid in the Rice oil, linoleic acid, oryzanol, γ-Hi-Z and vitamin A by magnetic agitation
Go out, obtain crude oil mixture；
The crude oil mixture is centrifuged, filtered, the primary Rice oil containing micro magnetic nano-catalyst is isolated；
The primary Rice oil is carried out by decolorization using activated carbon, is subsequently placed in magnetic field and is isolated the micro magnetic and receive
Rice catalyst, obtains high-purity Rice oil；
Protease and serine are added into high-purity Rice oil, health care Rice oil is obtained.
5. method of refining according to claim 4, it is characterised in that：The magnetic carrier of the magnetic nano-catalyst is
Fe3O4, nano active catalyst include MnO2、MnOOH、Mn2O3、Mn3O4、Nd2O3、ZnO2、Sm2O3、Gd2O3And TiO2In one
Plant or several combinations.
6. method of refining according to claim 5, it is characterised in that：The nano active catalyst is β-MnO2Nanometer rods.
7. method of refining according to claim 4, it is characterised in that：The reaction temperature of the esterification is 200 DEG C -300 DEG C,
Time is 2h-4h, and pressure is 1.0-1.5MPa, and the esterification is carried out in protection gas.
8. method of refining according to claim 4, it is characterised in that：The rotating speed of the magnetic agitation is 500rpm/min-
1000rpm/min。
9. method of refining according to claim 4, it is characterised in that：The consumption of the magnetic nano-catalyst is the rice
The 1%-1.5% of rice crude oil quality.
10. method of refining according to claim 4, it is characterised in that：Protease is being added into high-purity Rice oil
The step of with also including adding oryzanol, γ-Hi-Z and vitamin A into high-purity Rice oil before serine.
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| CN112063452A (en) * | 2020-09-08 | 2020-12-11 | 江西井冈绿宝股份有限公司 | Health-care rice oil and production method thereof |
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| CN110699175A (en) * | 2019-09-30 | 2020-01-17 | 中国林业科学研究院林产化学工业研究所 | Method for refining four-grade rice oil by using active carbon and product thereof |
| CN112063452A (en) * | 2020-09-08 | 2020-12-11 | 江西井冈绿宝股份有限公司 | Health-care rice oil and production method thereof |
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