CN109749844A - A kind of edible oil of low trans fatty acid and preparation method thereof - Google Patents
A kind of edible oil of low trans fatty acid and preparation method thereof Download PDFInfo
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Abstract
The invention discloses edible oils of a kind of low trans fatty acid and preparation method thereof, it is related to field of food, a kind of edible oil raw material of low trans fatty acid is one of soybean oil, corn oil, maize germ, rapeseed oil, olive oil or a variety of, a kind of preparation method of the edible oil of low trans fatty acid described in claim 1, include the following steps, S1, stock；S2, oil expression；S3, degumming；S4, deacid-deodoring；S5, it is cooling.For the present invention during deacid-deodoring, the composite catalyst of addition, as carrier, can effectively inhibit the transfer between reactant and product molecule using zeolite, significantly reduce the content of trans-fatty acid in edible oil, ensure that the safety of human health；The easy control of process conditions of the method for the present invention, and it is few to consume energy, at low cost, high financial profit.
Description
Technical field
The present invention relates to food technology fields more particularly to a kind of edible oil of low trans fatty acid and preparation method thereof.
Background technique
Trans-fatty acid is a kind of unsaturated fatty acid unfavorable to health, has a small amount of presence in natural fat.Usual day
Right vegetable fat (such as soybean oil, rapeseed oil) is made of cis unsaturated fatty acid, and is free of TFA, but grease is carrying out
When refining and deodorizing, the unsaturated fatty acid in grease can expose in air, and heat occurs for the diene acid esters, triolefin acid esters in grease
Polymerization reaction is easier to that isomerization occurs, increases TFA content；Vegetable fat (or animal oil) is subjected to part hydrogenation processing, is changed
The physical property (fusing point, quality, processability) and chemical property, the hydrogenation process of grease of kind grease can generate TFA, and method is a small amount of
The catalyst metals such as nickel, palladium, platinum or cobalt with the help of, hydrogen is added in vegetable oil and generates hydrogenation, with hydrogenation
It carries out, the content of trans-fatty acid can be reduced, and be that will not leave behind trans fats if this hydrogenation can be carried out completely
Acid, but HYDROGENATION OF OILS AND FATS can be removed without actually using value because of really up to the mark by reacting last fat products, so that TFA is generated,
Human health can be had an impact after edible, we have devised edible oil and its preparation side of a kind of low trans fatty acid thus
Method solves problem above.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of low trans fatty acid proposed
Edible oil and preparation method thereof.
To achieve the goals above, present invention employs following technical solutions:
A kind of edible oil of low trans fatty acid, raw material are soybean oil, corn oil, maize germ, rapeseed oil, one in olive oil
Kind is a variety of.
A kind of preparation method of the edible oil of low trans fatty acid, includes the following steps,
S1, stock: weighing suitable raw material, after immersion, cleaning, control water, drying and processing, obtains the dry raw material of cleaning；
S2, oil expression: the raw material in step S1 being added in oil press and is squeezed, and carries out dregs of fat separation to the crude oil at squeezing
Afterwards, just edible oil processed is obtained；
S3, degumming；First edible oil processed into step S2 is added degumming medium, and be heated to 60~75 DEG C at a temperature of stir
20~35min carries out the refining of degumming acid/base, obtains degumming edible oil, then decolourized, after dewaxing treatment, semi-finished product can be obtained
Edible oil；
S4, deacid-deodoring: the semi-finished product edible oil in step S3 being added in deacid-deodoring tower, and adds composite catalyst,
For composite catalyst using zeolite as carrier, temperature is maintained at 80 DEG C~140 DEG C, until the fatty acid composition that dissociates in grease is removed completely
Until going, product oil can be obtained；
S5, it is cooling: the product oil in step S4 being put into container and carries out natural cooling, and to product oil during cooling
It is stirred, carries out equivalent packaging, the product oil after being packed after cooling.
Preferably, in the step S1, immersion while, slowly stirs raw material, and will be suspended in the water surface not
Full raw material is pulled out.
Preferably, the dregs of fat in the step S2, which are separated into, actively separates, and needs to be filtered for multiple times with filter screen, filter
The raw material that filter residue afterwards can be used as feed carries out refuse reclamation.
Preferably, in the step S2, if just edible oil processed is squeezed by a variety of raw material, need to be stirred mixing, directly
It dissolves each other to each ingredient, oil colours is uniform, the first edible oil processed mixed.
Preferably, in the step S4, composite catalyst is mixed after being crushed, with zeolite by stirring, is boiled
Stone utilizes its adsorptivity, and composite catalyst is adsorbed onto internal void.
Compared with prior art, the beneficial effects of the present invention are:
1, during deacid-deodoring, the composite catalyst of addition, as carrier, can effectively inhibit to react using zeolite
Transfer between object and product molecule significantly reduces the content of trans-fatty acid in edible oil, ensure that human health
Safety；
2, at 80 DEG C~140 DEG C, lower temperature condition is easy to control the temperature of the method for the present invention strict control deacid-deodoring, and
Energy consumption is few, at low cost, high financial profit.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.
Embodiment one
A kind of preparation method of the edible oil of low trans fatty acid, includes the following steps,
S1, stock: weighing suitable big beans, after immersion, cleaning, control water, drying and processing, obtains the dry original of cleaning
Material, immersion while, slowly stir big beans, and the not full raw material for being suspended in the water surface is pulled out, to dry big
Beans carries out decortication processing；
S2, oil expression: the big beans in step S1 being added in oil press and is squeezed, and carries out the dregs of fat point to the crude oil at squeezing
From rear, soybean oil processed at the beginning of obtaining；
S3, degumming；First edible oil processed into step S2 is added degumming medium, and be heated to 60 DEG C at a temperature of stir
20min carries out the refining of degumming acid/base, obtains degumming edible oil, then decolourized, after dewaxing treatment, semi-finished product soybean can be obtained
Oil；
S4, deacid-deodoring: the semi-finished product edible oil in step S3 being added in deacid-deodoring tower, and adds composite catalyst,
For composite catalyst using zeolite as carrier, temperature is maintained at 80 DEG C, until the fatty acid composition that dissociates in grease is completely removed,
Soybean oil can be obtained；
S5, it is cooling: the soybean oil in step S4 being put into container and carries out natural cooling, and to product oil during cooling
It is stirred, carries out equivalent packaging, the finished product soybean oil after being packed after cooling.
Embodiment two
A kind of preparation method of the edible oil of low trans fatty acid, includes the following steps,
S1, stock: weighing suitable big beans, after immersion, cleaning, control water, drying and processing, obtains the dry original of cleaning
Material, immersion while, slowly stir big beans, and the not full raw material for being suspended in the water surface is pulled out, to dry big
Beans carries out decortication processing；
S2, oil expression: the big beans in step S1 being added in oil press and is squeezed, and carries out the dregs of fat point to the crude oil at squeezing
From rear, soybean oil processed at the beginning of obtaining；
S3, degumming；First edible oil processed into step S2 is added degumming medium, and be heated to 65 DEG C at a temperature of stir
25min carries out the refining of degumming acid/base, obtains degumming edible oil, then decolourized, after dewaxing treatment, semi-finished product soybean can be obtained
Oil；
S4, deacid-deodoring: the semi-finished product edible oil in step S3 being added in deacid-deodoring tower, and adds composite catalyst,
For composite catalyst using zeolite as carrier, temperature is maintained at 100 DEG C, until by grease dissociate fatty acid composition completely remove for
Only, soybean oil can be obtained；
S5, it is cooling: the soybean oil in step S4 being put into container and carries out natural cooling, and to product oil during cooling
It is stirred, carries out equivalent packaging, the finished product soybean oil after being packed after cooling.
Embodiment three
A kind of preparation method of the edible oil of low trans fatty acid, includes the following steps,
S1, stock: weighing suitable vegetable seed grain, after immersion, cleaning, control water, drying and processing, obtains the dry original of cleaning
Material, immersion while, slowly stir vegetable seed grain, and the not full raw material for being suspended in the water surface is pulled out, obtain drying
Vegetable seed grain；
S2, oil expression: the vegetable seed grain in step S1 being added in oil press and is squeezed, and carries out the dregs of fat point to the crude oil at squeezing
From rear, rapeseed oil processed at the beginning of obtaining；
S3, degumming；First edible oil processed into step S2 is added degumming medium, and be heated to 75 DEG C at a temperature of stir
35min carries out the refining of degumming acid/base, obtains degumming edible oil, then decolourized, after dewaxing treatment, semi-finished product vegetable seed can be obtained
Oil；
S4, deacid-deodoring: the semi-finished product edible oil in step S3 being added in deacid-deodoring tower, and adds composite catalyst,
For composite catalyst using zeolite as carrier, temperature is maintained at 140 DEG C, until by grease dissociate fatty acid composition completely remove for
Only, rapeseed oil can be obtained；
S5, it is cooling: the rapeseed oil in step S4 being put into container and carries out natural cooling, and to product oil during cooling
It is stirred, carries out equivalent packaging, the finished product rapeseed oil after being packed after cooling.
The measurement of content of trans fatty acids is carried out to the soybean oil of above-mentioned three groups of embodiments preparation, and is bought common in the market
Soybean oil as a comparison case, measure content of trans fatty acids, measurement result see the table below:
| Measure object | Content of trans fatty acids/% |
| Embodiment one | 0.172 |
| Embodiment two | 0.168 |
| Embodiment three | 0.157 |
| Comparative example | 0.248 |
It can be seen that by upper table, the content of trans-fatty acid is significantly less than in the market in the soybean oil prepared by the method for the invention
Soybean oil in trans-fatty acid content.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of edible oil of low trans fatty acid, which is characterized in that raw material is soybean oil, corn oil, maize germ, vegetable seed
One of oil, olive oil are a variety of.
2. a kind of preparation method of the edible oil of low trans fatty acid described in claim 1, which is characterized in that including following step
Suddenly,
S1, stock: weighing suitable raw material, after immersion, cleaning, control water, drying and processing, obtains the dry raw material of cleaning；
S2, oil expression: the raw material in step S1 being added in oil press and is squeezed, and carries out dregs of fat separation to the crude oil at squeezing
Afterwards, just edible oil processed is obtained；
S3, degumming；First edible oil processed into step S2 is added degumming medium, and be heated to 60~75 DEG C at a temperature of stir
20~35min carries out the refining of degumming acid/base, obtains degumming edible oil, then decolourized, after dewaxing treatment, semi-finished product can be obtained
Edible oil；
S4, deacid-deodoring: the semi-finished product edible oil in step S3 being added in deacid-deodoring tower, and adds composite catalyst,
For composite catalyst using zeolite as carrier, temperature is maintained at 80 DEG C~140 DEG C, until the fatty acid composition that dissociates in grease is removed completely
Until going, product oil can be obtained；
S5, it is cooling: the product oil in step S4 being put into container and carries out natural cooling, and to product oil during cooling
It is stirred, carries out equivalent packaging, the product oil after being packed after cooling.
3. a kind of preparation method of the edible oil of low trans fatty acid according to claim 2, which is characterized in that the step
In rapid S1, immersion while, slowly stirs raw material, and the not full raw material for being suspended in the water surface is pulled out.
4. a kind of preparation method of the edible oil of low trans fatty acid according to claim 2, which is characterized in that the step
The dregs of fat in rapid S2, which are separated into, actively to be separated, and needs to be filtered for multiple times with filter screen, filtered filter residue can be used as feed
Raw material carries out refuse reclamation.
5. a kind of preparation method of the edible oil of low trans fatty acid according to claim 2, which is characterized in that the step
In rapid S2, if just edible oil processed is squeezed by a variety of raw material, need to be stirred mixing, until each ingredient dissolves each other, oil colours is equal
First edible oil processed that is even, being mixed.
6. a kind of preparation method of the edible oil of low trans fatty acid according to claim 2, which is characterized in that the step
In rapid S4, composite catalyst is mixed after being crushed, with zeolite by stirring, and zeolite utilizes its adsorptivity, will be compound
In Catalyst Adsorption to internal void.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113801733A (en) * | 2021-10-25 | 2021-12-17 | 怀化市富源油业有限公司 | Preparation method of edible blend oil with low trans-fatty acid content |
Citations (2)
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| CN102273522A (en) * | 2010-06-13 | 2011-12-14 | 深圳南顺油脂有限公司 | Edible vegetable oil with lower trans fatty acid and refining method thereof |
| CN104970115A (en) * | 2015-06-18 | 2015-10-14 | 哈尔滨普润油脂有限公司 | Refining method of low trans-fatty acid compound oil |
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2019
- 2019-02-20 CN CN201910124778.6A patent/CN109749844A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102273522A (en) * | 2010-06-13 | 2011-12-14 | 深圳南顺油脂有限公司 | Edible vegetable oil with lower trans fatty acid and refining method thereof |
| CN104970115A (en) * | 2015-06-18 | 2015-10-14 | 哈尔滨普润油脂有限公司 | Refining method of low trans-fatty acid compound oil |
Non-Patent Citations (1)
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| 苗海卿: "食用油加氢过程催化剂对反式脂肪酸影响的研究进展", 《中国油脂》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113801733A (en) * | 2021-10-25 | 2021-12-17 | 怀化市富源油业有限公司 | Preparation method of edible blend oil with low trans-fatty acid content |
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