CN111040873A - Fish oil processing, refining and filtering process - Google Patents
Fish oil processing, refining and filtering process Download PDFInfo
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- CN111040873A CN111040873A CN201911319977.9A CN201911319977A CN111040873A CN 111040873 A CN111040873 A CN 111040873A CN 201911319977 A CN201911319977 A CN 201911319977A CN 111040873 A CN111040873 A CN 111040873A
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/04—Refining fats or fatty oils by chemical reaction with acids
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/08—Refining fats or fatty oils by chemical reaction with oxidising agents
-
- 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
- C11B3/00—Refining fats or fatty oils
- C11B3/10—Refining fats or fatty oils by adsorption
-
- 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
- C11B3/00—Refining fats or fatty oils
- C11B3/16—Refining fats or fatty oils by mechanical means
-
- 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
- C11B5/00—Preserving by using additives, e.g. anti-oxidants
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- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a fish oil processing, refining and filtering process, which comprises the following steps: firstly, centrifugally separating impurities from crude fish oil, drying, then adding phosphoric acid into the fish oil for reaction, adding sodium hydroxide into the reacted fish oil for deacidification, then adding diatomite for primary decolorization, then adding active carbon for further decolorization and deodorization, then centrifugally separating impurities, then adding an antioxidant, finally winterizing the fish oil, and filtering to obtain the refined fish oil. Through adding diatomaceous earth, carry out preliminary decoloration to fish oil, through adding active carbon, carry out further decoloration to fish oil for the colour of fish oil is more pure, through carrying out winterization cooling to fish oil, and control temperature, can improve the product extraction rate.
Description
Technical Field
The invention relates to the technical field of fish oil processing, in particular to a refining and filtering process for fish oil processing.
Background
The fish oil is one of important components of fish, is rich in various unsaturated fatty acids such as EPA and DHA, and has the functions of lowering blood pressure, eliminating fatigue, preventing cerebral thrombosis, improving memory and the like. Therefore, the fish oil is widely applied to the fields of food, medical treatment, feed industry and the like.
The current fish oil is not perfect in certain steps in the processing process, and the processed fish oil has dark color and fishy smell, so that the obtained product has defects, and the fish oil can be oxidized and rancid due to long-time contact with air.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a fish oil processing, refining and filtering process.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fish oil processing, refining and filtering process comprises the following steps:
firstly, heating the rough fish oil in a constant-temperature water bath, keeping the temperature between 40 ℃ and 50 ℃, then adding the rough fish oil into a centrifuge for centrifugally separating impurities, controlling the rotating speed at 2500-;
secondly, vacuum drying the fish oil with impurities removed, heating the fish oil to 60-70 ℃, adding a certain amount of phosphoric acid, and placing the fish oil in a reaction tank for reaction for 15-30 min;
thirdly, putting the reacted fish oil into a crucible, adding a certain amount of sodium hydroxide, heating, controlling the temperature to be 70-90 ℃, and performing deacidification reaction;
fourthly, adding a certain amount of diatomite into the fish oil after the deacidification reaction, mixing and stirring for 30min, and decoloring the fish oil;
fifthly, adding a certain amount of activated carbon into the decolored fish oil to deodorize and deodorize the fish oil, and further decolor the fish oil;
sixthly, putting the deodorized and decolored fish oil into a centrifugal machine for centrifugal separation of impurities, then filtering filter residues, and adding a certain amount of antioxidant into the obtained fish oil;
seventhly, winterizing the obtained fish oil, slowly stirring the fish oil, controlling the cooling speed, cooling to about 4-6 ℃ for about 24 hours to enable solid fat to generate larger crystals, separating out, filtering the crystals, and separating oil from solid fat to obtain the refined fish oil.
Preferably, the centrifuge in the first step is a machine that separates the components of a mixture of liquid and solid particles or liquid and liquid using centrifugal force.
Preferably, the second step is a common inorganic acid, a medium strong acid, obtained by dissolving phosphorus pentoxide in hot water, and is industrially obtained by treating apatite with sulfuric acid.
Preferably, the deacidification in the third step means that the free fatty acid affects the stability and flavor of the grease.
Preferably, the diatomaceous earth in the fourth step consists of amorphous SiO2 and contains small amounts of Fe2O3, CaO, MgO, Al2O3, and organic impurities.
Preferably, the activated carbon in the fifth step is a specially treated carbon, and the organic raw material (husk, coal, wood, etc.) is heated under the condition of isolating air.
Preferably, the antioxidant in the sixth step is a substance that prevents adverse effects of oxygen.
Preferably, winterization in the seventh step is a method of chromatographic separation.
Preferably, the addition amount of the phosphoric acid is 0.02-0.05% of the crude fish oil raw material, the addition amount of the sodium hydroxide is 2-5% of the crude fish oil raw material, the addition amount of the diatomite is 5-10% of the crude fish oil raw material, the addition amount of the activated carbon is 10-15% of the crude fish oil raw material, and the addition amount of the antioxidant is 3-6% of the crude fish oil raw material.
According to the fish oil processing, refining and filtering process provided by the invention, the diatomite is added to primarily decolor the fish oil, the activated carbon is added to further decolor the fish oil, so that the color of the fish oil is purer, and the fish oil is winterized and cooled, and the temperature is controlled, so that the product extraction rate can be improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1: a fish oil processing, refining and filtering process comprises the following steps:
firstly, heating the rough fish oil in a constant-temperature water bath, keeping the temperature between 40 ℃ and 50 ℃, then adding the rough fish oil into a centrifuge for centrifugally separating impurities, controlling the rotating speed at 2500-;
secondly, vacuum drying the fish oil with impurities removed, heating the fish oil to 60-70 ℃, adding a certain amount of phosphoric acid, and placing the fish oil in a reaction tank for reaction for 15-30 min;
thirdly, putting the reacted fish oil into a crucible, adding a certain amount of sodium hydroxide, heating, controlling the temperature to be 70-90 ℃, and performing deacidification reaction;
fourthly, adding a certain amount of diatomite into the fish oil after the deacidification reaction, mixing and stirring for 30min, and decoloring the fish oil;
fifthly, adding a certain amount of activated carbon into the decolored fish oil to deodorize and deodorize the fish oil, and further decolor the fish oil;
sixthly, putting the deodorized and decolored fish oil into a centrifugal machine for centrifugal separation of impurities, then filtering filter residues, and adding a certain amount of antioxidant into the obtained fish oil;
seventhly, winterizing the obtained fish oil, slowly stirring the fish oil, controlling the cooling speed, cooling to about 4 ℃ for about 24 hours to enable solid fat to generate larger crystals, separating out, filtering the crystals, and separating oil from solid fat to obtain the refined fish oil.
The first step is a centrifuge which uses centrifugal force to separate the components of a mixture of liquid and solid particles or liquid and liquid, and the centrifuge used is a table centrifuge.
The second step is a common inorganic acid, which is a medium strong acid, and is obtained by dissolving phosphorus pentoxide in hot water, and is obtained by industrially treating apatite with sulfuric acid, phosphoric acid is easily deliquesced in air, and is heated to lose water to obtain pyrophosphoric acid, and then further loses water to obtain metaphosphoric acid, and the heated phosphoric acid is used as a stabilizer of peroxide.
Deacidifying in the third step means that free fatty acid influences the stability and flavor of the grease, and the free fatty acid can be removed by adopting a method of adding alkali for neutralization, which is called deacidifying and is also called alkali refining.
In the fourth step, the diatomite is composed of amorphous SiO2 and contains a small amount of Fe2O3, CaO, MgO, Al2O3 and organic impurities, is light yellow or light gray, is soft, porous and light, and is commonly used as a heat insulating material, a filter material, a filler, a grinding material, a water glass raw material, a decolorizing agent, a diatomite filter aid, a catalyst carrier and the like in industry.
In the fifth step, the activated carbon is a specially treated carbon, organic raw materials (shells, coal, wood, etc.) are heated under the condition of isolating air to reduce non-carbon components (the process is called carbonization), then the organic raw materials react with gas to erode the surface and generate a structure with developed micropores (the process is called activation), and the activated carbon is used for further decoloring and deodorizing the fish oil.
And in the sixth step, the antioxidant is a substance for preventing the adverse effect of oxygen, and the addition of the antioxidant can avoid the oxidative rancidity of the fish oil.
The seventh step is winterization, which is a crystallization separation method, and is a process of separating oil and solid fat by cooling oil and fat to crystallize and separate glyceride and the like with higher freezing point.
The addition amount of the phosphoric acid is 0.02-0.05 percent of the raw material of the crude fish oil, the addition amount of the sodium hydroxide is 2-5 percent of the raw material of the crude fish oil, the addition amount of the diatomite is 5-10 percent of the raw material of the crude fish oil, the addition amount of the active carbon is 10-15 percent of the raw material of the crude fish oil, and the addition amount of the antioxidant is 3-6 percent of the raw material of the crude fish oil.
Example 2: a fish oil processing, refining and filtering process comprises the following steps:
firstly, heating the rough fish oil in a constant-temperature water bath, keeping the temperature between 40 ℃ and 50 ℃, then adding the rough fish oil into a centrifuge for centrifugally separating impurities, controlling the rotating speed at 2500-;
secondly, vacuum drying the fish oil with impurities removed, heating the fish oil to 60-70 ℃, adding a certain amount of phosphoric acid, and placing the fish oil in a reaction tank for reaction for 15-30 min;
thirdly, putting the reacted fish oil into a crucible, adding a certain amount of sodium hydroxide, heating, controlling the temperature to be 70-90 ℃, and performing deacidification reaction;
fourthly, adding a certain amount of diatomite into the fish oil after the deacidification reaction, mixing and stirring for 30min, and decoloring the fish oil;
fifthly, adding a certain amount of activated carbon into the decolored fish oil to deodorize and deodorize the fish oil, and further decolor the fish oil;
sixthly, putting the deodorized and decolored fish oil into a centrifugal machine for centrifugal separation of impurities, then filtering filter residues, and adding a certain amount of antioxidant into the obtained fish oil;
seventhly, winterizing the obtained fish oil, slowly stirring the fish oil, controlling the cooling speed, cooling to about 5 ℃ for about 24 hours to enable solid fat to generate larger crystals, separating out, filtering the crystals, and separating oil from solid fat to obtain the refined fish oil.
The first step is a centrifuge which uses centrifugal force to separate the components of a mixture of liquid and solid particles or liquid and liquid, and the centrifuge used is a table centrifuge.
The second step is a common inorganic acid, which is a medium strong acid, and is obtained by dissolving phosphorus pentoxide in hot water, and is obtained by industrially treating apatite with sulfuric acid, phosphoric acid is easily deliquesced in air, and is heated to lose water to obtain pyrophosphoric acid, and then further loses water to obtain metaphosphoric acid, and the heated phosphoric acid is used as a stabilizer of peroxide.
Deacidifying in the third step means that free fatty acid influences the stability and flavor of the grease, and the free fatty acid can be removed by adopting a method of adding alkali for neutralization, which is called deacidifying and is also called alkali refining.
In the fourth step, the diatomite is composed of amorphous SiO2 and contains a small amount of Fe2O3, CaO, MgO, Al2O3 and organic impurities, is light yellow or light gray, is soft, porous and light, and is commonly used as a heat insulating material, a filter material, a filler, a grinding material, a water glass raw material, a decolorizing agent, a diatomite filter aid, a catalyst carrier and the like in industry.
In the fifth step, the activated carbon is a specially treated carbon, organic raw materials (shells, coal, wood, etc.) are heated under the condition of isolating air to reduce non-carbon components (the process is called carbonization), then the organic raw materials react with gas to erode the surface and generate a structure with developed micropores (the process is called activation), and the activated carbon is used for further decoloring and deodorizing the fish oil.
And in the sixth step, the antioxidant is a substance for preventing the adverse effect of oxygen, and the addition of the antioxidant can avoid the oxidative rancidity of the fish oil.
The seventh step is winterization, which is a crystallization separation method, and is a process of separating oil and solid fat by cooling oil and fat to crystallize and separate glyceride and the like with higher freezing point.
The addition amount of the phosphoric acid is 0.02-0.05 percent of the raw material of the crude fish oil, the addition amount of the sodium hydroxide is 2-5 percent of the raw material of the crude fish oil, the addition amount of the diatomite is 5-10 percent of the raw material of the crude fish oil, the addition amount of the active carbon is 10-15 percent of the raw material of the crude fish oil, and the addition amount of the antioxidant is 3-6 percent of the raw material of the crude fish oil.
Example 3: a fish oil processing, refining and filtering process comprises the following steps:
firstly, heating the rough fish oil in a constant-temperature water bath, keeping the temperature between 40 ℃ and 50 ℃, then adding the rough fish oil into a centrifuge for centrifugally separating impurities, controlling the rotating speed at 2500-;
secondly, vacuum drying the fish oil with impurities removed, heating the fish oil to 60-70 ℃, adding a certain amount of phosphoric acid, and placing the fish oil in a reaction tank for reaction for 15-30 min;
thirdly, putting the reacted fish oil into a crucible, adding a certain amount of sodium hydroxide, heating, controlling the temperature to be 70-90 ℃, and performing deacidification reaction;
fourthly, adding a certain amount of diatomite into the fish oil after the deacidification reaction, mixing and stirring for 30min, and decoloring the fish oil;
fifthly, adding a certain amount of activated carbon into the decolored fish oil to deodorize and deodorize the fish oil, and further decolor the fish oil;
sixthly, putting the deodorized and decolored fish oil into a centrifugal machine for centrifugal separation of impurities, then filtering filter residues, and adding a certain amount of antioxidant into the obtained fish oil;
seventhly, winterizing the obtained fish oil, slowly stirring the fish oil, controlling the cooling speed, cooling to about 6 ℃ for about 24 hours to enable solid fat to generate larger crystals, separating out, filtering the crystals, and separating oil from solid fat to obtain the refined fish oil.
The first step is a centrifuge which uses centrifugal force to separate the components of a mixture of liquid and solid particles or liquid and liquid, and the centrifuge used is a table centrifuge.
The second step is a common inorganic acid, which is a medium strong acid, and is obtained by dissolving phosphorus pentoxide in hot water, and is obtained by industrially treating apatite with sulfuric acid, phosphoric acid is easily deliquesced in air, and is heated to lose water to obtain pyrophosphoric acid, and then further loses water to obtain metaphosphoric acid, and the heated phosphoric acid is used as a stabilizer of peroxide.
Deacidifying in the third step means that free fatty acid influences the stability and flavor of the grease, and the free fatty acid can be removed by adopting a method of adding alkali for neutralization, which is called deacidifying and is also called alkali refining.
In the fourth step, the diatomite is composed of amorphous SiO2 and contains a small amount of Fe2O3, CaO, MgO, Al2O3 and organic impurities, is light yellow or light gray, is soft, porous and light, and is commonly used as a heat insulating material, a filter material, a filler, a grinding material, a water glass raw material, a decolorizing agent, a diatomite filter aid, a catalyst carrier and the like in industry.
In the fifth step, the activated carbon is a specially treated carbon, organic raw materials (shells, coal, wood, etc.) are heated under the condition of isolating air to reduce non-carbon components (the process is called carbonization), then the organic raw materials react with gas to erode the surface and generate a structure with developed micropores (the process is called activation), and the activated carbon is used for further decoloring and deodorizing the fish oil.
And in the sixth step, the antioxidant is a substance for preventing the adverse effect of oxygen, and the addition of the antioxidant can avoid the oxidative rancidity of the fish oil.
The seventh step is winterization, which is a crystallization separation method, and is a process of separating oil and solid fat by cooling oil and fat to crystallize and separate glyceride and the like with higher freezing point.
The addition amount of the phosphoric acid is 0.02-0.05 percent of the raw material of the crude fish oil, the addition amount of the sodium hydroxide is 2-5 percent of the raw material of the crude fish oil, the addition amount of the diatomite is 5-10 percent of the raw material of the crude fish oil, the addition amount of the active carbon is 10-15 percent of the raw material of the crude fish oil, and the addition amount of the antioxidant is 3-6 percent of the raw material of the crude fish oil.
The raw material proportion of the process is executed according to the conventional material proportion, then the fish oil is refined and filtered according to the relevant operations from the first step to the seventh step in the embodiments 1 to 3 respectively, the winterization cooling temperature in the seventh step is controlled, the extraction rate of the fish oil is detected respectively after the completion, and the color of the fish oil is observed, so that the following results are obtained.
It can be seen from the table that preliminary decolorization is performed on the fish oil by adding diatomite, and further decolorization is performed on the fish oil by adding activated carbon, so that the color of the fish oil is purer, and the extraction rate of the product can be improved by performing winterization cooling on the fish oil and controlling the temperature.
Claims (9)
1. A fish oil processing, refining and filtering process is characterized in that: the fish oil processing, refining and filtering process comprises the following steps:
firstly, heating the rough fish oil in a constant-temperature water bath, keeping the temperature between 40 ℃ and 50 ℃, then adding the rough fish oil into a centrifuge for centrifugally separating impurities, controlling the rotating speed at 2500-;
secondly, vacuum drying the fish oil with impurities removed, heating the fish oil to 60-70 ℃, adding a certain amount of phosphoric acid, and placing the fish oil in a reaction tank for reaction for 15-30 min;
thirdly, putting the reacted fish oil into a crucible, adding a certain amount of sodium hydroxide, heating, controlling the temperature to be 70-90 ℃, and performing deacidification reaction;
fourthly, adding a certain amount of diatomite into the fish oil after the deacidification reaction, mixing and stirring for 30min, and decoloring the fish oil;
fifthly, adding a certain amount of activated carbon into the decolored fish oil to deodorize and deodorize the fish oil, and further decolor the fish oil;
sixthly, putting the deodorized and decolored fish oil into a centrifugal machine for centrifugal separation of impurities, then filtering filter residues, and adding a certain amount of antioxidant into the obtained fish oil;
seventhly, winterizing the obtained fish oil, slowly stirring the fish oil, controlling the cooling speed, cooling to about 4-6 ℃ for about 24 hours to enable solid fat to generate larger crystals, separating out, filtering the crystals, and separating oil from solid fat to obtain the refined fish oil.
2. The fish oil processing, refining and filtering process of claim 1, wherein: the first step centrifuge is a machine that uses centrifugal force to separate the components of a mixture of liquid and solid particles or liquid and liquid.
3. The fish oil processing, refining and filtering process of claim 1, wherein: the second step is a common inorganic acid, which is a medium-strong acid and is obtained by dissolving phosphorus pentoxide in hot water, and the orthophosphoric acid is obtained by industrially treating apatite with sulfuric acid.
4. The fish oil processing, refining and filtering process of claim 1, wherein: the deacidification in the third step means that the free fatty acid influences the stability and the flavor of the grease.
5. The fish oil processing, refining and filtering process of claim 1, wherein: and in the fourth step, the diatomite is composed of amorphous SiO2 and contains a small amount of Fe2O3, CaO, MgO, Al2O3 and organic impurities.
6. The fish oil processing, refining and filtering process of claim 1, wherein: in the fifth step, the activated carbon is specially treated carbon, and organic raw materials (fruit shells, coal, wood and the like) are heated under the condition of air isolation.
7. The fish oil processing, refining and filtering process of claim 1, wherein: the antioxidant in the sixth step is a substance which prevents the adverse effect of oxygen.
8. The fish oil processing, refining and filtering process of claim 1, wherein: the winterization in the seventh step is a method of chromatographic separation.
9. The fish oil processing, refining and filtering process of claim 1, wherein: the additive amount of the phosphoric acid is 0.02-0.05% of the raw material of the crude fish oil, the additive amount of the sodium hydroxide is 2-5% of the raw material of the crude fish oil, the additive amount of the diatomite is 5-10% of the raw material of the crude fish oil, the additive amount of the activated carbon is 10-15% of the raw material of the crude fish oil, and the additive amount of the antioxidant is 3-6% of the raw material of the crude fish oil.
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| CN201911319977.9A CN111040873A (en) | 2019-12-19 | 2019-12-19 | Fish oil processing, refining and filtering process |
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| CN201911319977.9A CN111040873A (en) | 2019-12-19 | 2019-12-19 | Fish oil processing, refining and filtering process |
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| CN102925279A (en) * | 2012-11-13 | 2013-02-13 | 湖北金鲤鱼食品有限公司 | Technology of extracting and refining fish oil from internal organs of silver carps |
| CN104073345A (en) * | 2014-07-22 | 2014-10-01 | 应夏英 | Tuna coarse oil refining method |
| CN104745301A (en) * | 2015-04-13 | 2015-07-01 | 海南省粮油科学研究所 | Method for improving quality of tilapia mossambica oil |
| CN105542948A (en) * | 2015-12-26 | 2016-05-04 | 山东好当家海洋发展股份有限公司 | Method for preparing concentrated fish oil by virtue of squid waste |
| CN105779098A (en) * | 2016-04-06 | 2016-07-20 | 常州市鼎日环保科技有限公司 | Method for refining fish oil from leftovers of freshwater fish |
| CN109370781A (en) * | 2018-12-03 | 2019-02-22 | 福建高龙海洋生物工程有限公司 | A kind of high EPA, DHA content deep sea fish oil processing technology |
-
2019
- 2019-12-19 CN CN201911319977.9A patent/CN111040873A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925279A (en) * | 2012-11-13 | 2013-02-13 | 湖北金鲤鱼食品有限公司 | Technology of extracting and refining fish oil from internal organs of silver carps |
| CN104073345A (en) * | 2014-07-22 | 2014-10-01 | 应夏英 | Tuna coarse oil refining method |
| CN104745301A (en) * | 2015-04-13 | 2015-07-01 | 海南省粮油科学研究所 | Method for improving quality of tilapia mossambica oil |
| CN105542948A (en) * | 2015-12-26 | 2016-05-04 | 山东好当家海洋发展股份有限公司 | Method for preparing concentrated fish oil by virtue of squid waste |
| CN105779098A (en) * | 2016-04-06 | 2016-07-20 | 常州市鼎日环保科技有限公司 | Method for refining fish oil from leftovers of freshwater fish |
| CN109370781A (en) * | 2018-12-03 | 2019-02-22 | 福建高龙海洋生物工程有限公司 | A kind of high EPA, DHA content deep sea fish oil processing technology |
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