CN116875377A - Method and device for removing fishy smell and purifying fish oil - Google Patents
Method and device for removing fishy smell and purifying fish oil Download PDFInfo
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- CN116875377A CN116875377A CN202211683752.3A CN202211683752A CN116875377A CN 116875377 A CN116875377 A CN 116875377A CN 202211683752 A CN202211683752 A CN 202211683752A CN 116875377 A CN116875377 A CN 116875377A
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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
- C11B3/008—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
- C11B3/10—Refining fats or fatty oils by adsorption
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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
- C11B3/12—Refining fats or fatty oils by distillation
- C11B3/14—Refining fats or fatty oils by distillation with the use of indifferent gases or vapours, e.g. steam
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Abstract
本发明公开了鱼油去腥臭及纯化的方法，包括以下步骤：S1，脱色与去杂；S2，除臭与深度脱色和除杂；S3，深度脱味与去杂；S4，净化处理。本发明还公开了鱼油去腥臭及纯化装置，包括顶层、填料层、收集漏液层、进出油、最底层，所述顶层、填料层、收集漏液层、进出油和换热层、最底层从上至下分布。本发明通过对粗鱼油经过脱色、去腥臭和去杂纯化，可以获得可直接食用且成本低廉的鱼油，可以将Omega‑3推广到千家万户，普惠大众。
The invention discloses a method for fish oil removal and purification, which includes the following steps: S1, decolorization and impurity removal; S2, deodorization and deep decolorization and impurity removal; S3, deep deodorization and impurity removal; S4, purification treatment. The invention also discloses a fish oil odor removal and purification device, which includes a top layer, a filler layer, a liquid leakage collection layer, an oil inlet and outlet layer, and a bottom layer. Distributed from top to bottom. By decolorizing, removing fishy odor and removing impurities, the present invention can obtain fish oil that is directly edible and low-cost, and can promote Omega-3 to thousands of households, benefiting the public.
Description
Technical Field
The invention relates to the technical field of grease, in particular to a method and a device for decoloring, deodorizing and purifying fish oil.
Background
Cardiovascular disease is one of the most known causes of mortality worldwide. Because cardiovascular disease often has no special signs before it occurs. Once this happens, it is often very dangerous. Therefore, it is very important to intentionally eat health products for prevention. Although there are a variety of cardiovascular related health care products, deep sea fish oil should be the most well known and widely used cardiovascular health care product so far. Scientific research shows that the main component Omega-3 (such as EPA and DHA) of the deep sea fish oil has a very clear benefit for cardiovascular and cerebrovascular health care. While EPA and DHA are compounds which cannot be synthesized by human body and can be obtained only by eating fish.
So far, the main way people obtain fish oil Omega-3 is by eating soft capsules. A soft capsule is a pharmaceutical preparation form, and its production process is basically similar to that of general pharmaceutical process. As is well known, the pharmaceutical industry is an industry that is subject to stringent government regulations and regulations, both with very high thresholds and costs.
Although China is a large country of deep sea fish oil consumption, consumers generally prefer to purchase fish oil soft capsules produced in the United states. In addition to the general public comparison believing that the GMP process commonly practiced by U.S. enterprises, another important factor is that the first to be considered effective is that U.S. fish oil is deep sea fish oil from Alaska. In fact, this is misunderstanding caused by the sudden changes of sales personnel. As previously mentioned, the main nutrients in fish oils are EPA and DHA. What we need to pay attention to is the content of these ingredients, not their origin. The labeling of fish oils with alaska with little human smoke is mainly because one would like to obtain the beneficial components of Omega-3 in fish oils on the one hand and worry about environmental contaminants, especially heavy metals, etc., in the ocean at the lowest point of the world on the other hand. If we can separate and remove these contaminants, the fish oil obtained wherever possible can be consumed.
Common general knowledge tells us that fish oils, which are part of fish, are consumed directly without the need for soft capsules. However, due to the limitations of conventional processing techniques, fish oils are generally produced that have a very strong fishy smell. This fishy smell can lead to intolerance for some people. Even with soft capsules, many people have uncomfortable reactions such as regurgitation. The intervention of the soft capsule not only greatly increases the difficulty of production and processing, but also increases the cost of the fish oil by times. Thus, there is a strong need for an edible fish oil that does not require the use of soft capsules and is pollution-free.
At present, the health care product industry utilizes various separation technologies such as molecular distillation and the like to improve the content of Omega-3 in fish oil, and the method has high cost and limited capacity.
If the fish oil can be converted into edible oil, the fish oil has obvious economic value. However, fish oil has a strong fishy smell and cannot be directly taken in, so that a deodorizing treatment is required. At present, no suitable method is available for realizing the large-scale direct conversion of feed-grade fish oil into food-grade fish oil.
Disclosure of Invention
The invention aims to solve the technical problems and provides a method and a device for removing fishy smell and purifying fish oil.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the method for removing fishy smell and purifying the fish oil comprises the following steps:
s1, decoloring and impurity removing, namely selecting a proper material to complete decoloring and preliminary impurity removing, wherein the decoloring is mainly finished by a material A with higher adsorption capacity but relatively lower cost, and meanwhile, the material A also has impurity removing capacity;
s2, deodorizing and deeply decoloring and purifying by using a porous material B with high surface area, which has high adsorption capacity on polar compounds containing nitrogen, sulfur and phosphorus elements and contains polar compounds of the elements and the hetero elements, to deeply deodorize and deeply decolor and purify;
s3, deeply deodorizing and removing impurities by using a porous material C which is modified and modified by the surface of an absorbable organic matter, and removing organic compounds which cause fishy smell of fish oil, particularly organic compounds containing nitrogen, sulfur and phosphorus elements;
s4, purifying treatment, namely after the color, impurities, rotten components, heavy metals and pesticide residues are removed, carrying out fish oil purifying treatment, namely carrying out reduced pressure distillation at the temperature of more than 220 ℃ and simultaneously introducing high-pressure steam at the temperature of more than 170 ℃, so as to thoroughly remove various small molecular organic matters with low adsorptivity and any possible microorganisms, and ensuring that the treated fish oil can reach the edible standard.
Preferably, the suitable materials A include, but are not limited to, activated clay, activated carbon, attapulgite or other special oil decolorizers, and the materials B include, but are not limited to, activated clay, activated carbon, attapulgite, etc.
Preferably, the material C can also be subjected to deep removal of heavy metals and pesticide residues simultaneously.
Preferably, the steps S1-S4 are all to remove impurities, and the decoloring step S1 is mainly to remove pigments, physical impurities and partial polar impurities; a deodorizing and deep decolorizing and impurity removing step S2, wherein pigments and impurities are further removed, and polar micromolecular compounds containing nitrogen, sulfur and phosphorus are easy to generate odor; in the S3 step of deep deodorization and impurity removal, mainly removing organic compounds which are easy to cause fishy smell and organic micromolecular compounds containing nitrogen, sulfur and phosphorus elements.
Preferably, the polar small molecule compounds containing nitrogen, sulfur and phosphorus elements that are prone to odor generation include hydrogen sulfide, mercaptans, ammonia, methylamine, phosphates.
Preferably, the organic small molecule compound containing nitrogen, sulfur and phosphorus elements comprises thioether, dimethylamine, trimethylamine and phosphate.
The invention also discloses a fish oil fishy smell removing and purifying device which comprises a top layer, a packing layer, a liquid leakage collecting layer, an oil inlet and outlet and heat exchange layer and a bottommost layer, wherein the top layer, the packing layer, the liquid leakage collecting layer, the oil inlet and outlet and heat exchange layer and the bottommost layer are distributed from top to bottom.
Preferably, the top layer has first pipeline, second pipeline, first pipeline and second pipeline are snakelike shape and crisscross distribution, be equipped with oil outlet pipe, oil inlet pipe on the first pipeline, be equipped with conduction oil import, conduction oil export on the second pipeline, the one end of oil outlet pipe is sealed.
Preferably, the oil outlet pipe is connected with the packing layer, the collecting liquid leakage layer, the oil inlet and outlet and heat exchange layer and the bottommost layer in parallel independently.
Preferably, a filter screen layer is arranged at the bottom of the top layer, and the filter screen layer is a macroporous supporting layer.
The beneficial effects of the invention are as follows:
compared with the prior art, the invention has the beneficial effects that:
no fishy smell: the fish oil deeply purified by the steps S1-S4 is called as reachable chromatographic purity TM Fish oil, which is fully edible in purity and substantially free of the typical fishy smell of conventional fish oils, has only a light fish aroma. After trial eating, the flavor of the product is equivalent to that of the high-purity medicine-grade Ve>97% EPA). And the degree of regurgitation after eating is similar.
Easy absorption: chromatographic purity TM EPA and DHA in fish oil are in the form of natural Triglyceride (TG), and scientific literature indicates that the Omega-3 in TG form is more easily absorbed by human body than the Omega-3 in ethyl ester form (EE);
very low contamination: unlike the common technology of molecular distillation, which is difficult to remove low boiling point small molecular impurities, the method can perform contact adsorption on the molecular level by a unique technology, and can accurately adsorb various pollutants. Thus, chromatographic purity TM Fish oils contain very low levels of contaminants.
High-efficiency heavy metal removal: in chromatographic purity TM In the refining process of the fish oil, the fish oil treated by the unique technology has ultralow heavy metal by applying chromatographic materials with special adsorption performance on various heavy metal ions.
Open application: chromatographic purity after deodorization TM One of the great characteristics of fish oil is that it can be directly used in food chain, which will significantly change the limitation that conventional fish oil must be processed through soft capsules to be eaten. Such an open application has the following advantages:
the complex soft capsule processing process is bypassed:
the entrance threshold of the manufactured products is lowered, and the products are degraded from medicines to foods, so that more people can enter the industry to manufacture new products;
the soft capsules which are not needed by people are saved, and the occurrence of events similar to toxic capsules is avoided;
the complex GMP standard requirement is omitted, the dependence of people on foreign GMP manufacturing bases is changed, and the comprehensive cost of manufactured products is reduced.
Reliable quality: chromatographic purity TM Fish oil is used in an open form, and can be conveniently detected. The quality problems caused by that the fish oil soft capsule products in the current health care product industry are stolen and reduced in materials or the nutria is replaced by other oils and are difficult to check can be avoided;
diversified products: chromatographic purity TM The open application of fish oil can be used for the development of various products, so that Omega-3 is contained in more products.
Reinforcing oil: chromatographic purity TM The fish oil has no chemical modification or exchange, retains the basic structure and performance of natural oil, and can be used for enhancing the nutritional ingredients of various edible oils. In addition, the price is moderate, and the edible oil can be enhanced with edible oil of different grades.
Mixing with high-grade oil: when blended with a series of high-grade healthy grease such as tea seed oil, olive oil, medium-chain oil (MCT (coconut oil) and the like, the tea seed oil has obvious two advantages: firstly, when fish oil is used for replacing high-grade oil with high price, the price is proper even if the price is unchanged; secondly, these high grade oils themselves often need to be used at relatively low temperatures. Therefore, the Omega-3 can be enjoyed by thousands of households without increasing the cost basically on the premise of not changing the eating habits of people.
Mixing with common oil: when it is blended with some common popular oils such as peanut oil, corn oil and rapeseed oil, the content of chromatographic pure TM fish oil will generally not exceed about 3% in the proportions recommended by the international industry, and the cost can be recovered by only increasing the total price of the fish oil-containing food oil by about 5%. Whereas the oil filled with Omega-3 is certainly well sold.
Through a scientific formula, when the novel coronavirus compound feed is mixed with other edible oil, some anti-inflammatory components can be introduced to enhance the health of human bodies, and particularly, the experimental result of one food material which is being researched at present shows that the novel coronavirus compound feed has better inhibition effect on the novel coronavirus infection than Rede Siwei, and can well improve the immunity of human bodies.
Water-based food: chromatographic purity TM The fish oil can be liquefied by milk, and can be added into beverage, ice beverage (Smoothies), food pastes, and the like.
Powder food: chromatographic purity TM The fish oil can be converted into solid powder, and added into solid food such as bread, milk powder, coffee partner, etc.
Cost advantage: chromatographic purity TM The fish oil can send the Omega-3 which is shared by the past money people to the common people by reducing the production cost and the standard cost
Fish oil is a raw material of cardiovascular health care drugs because of containing a large amount of unsaturated Omega-3. However, the content of Omega-3 varies depending on the source thereof. Most of the materials cannot reach 30% of the required health product threshold. Therefore, a large amount of the feed is used as fish feed.
In conclusion, the invention can obtain the fish oil which can be directly eaten and has low cost by decoloring, deodorizing and purifying the crude fish oil, and can popularize Omega-3 to all families and the general public.
Drawings
FIG. 1 is a schematic diagram of a device for decolorizing, deodorizing and purifying fish oil according to the present invention;
FIG. 2 is a top plan view of the fish oil decolorization, deodorization and purification apparatus of the present invention;
FIG. 3 is a top elevation view of the fish oil decolorization, deodorization and purification apparatus of the present invention;
FIG. 4 is a top view of the packing layer of the fish oil decolorization, deodorization and purification apparatus of the present invention;
FIG. 5 is a top view of the oil inlet and outlet and heat exchange layers of the fish oil decolorization, deodorization and purification device of the present invention;
FIG. 6 is a top view showing the bottom structure of the device for decoloring, deodorizing and purifying fish oil according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-6, the method for deodorizing and purifying fish oil comprises the following steps:
s1, decoloring and impurity removing, namely selecting a proper material to complete decoloring and preliminary impurity removing, wherein the decoloring is mainly finished by a material A with higher adsorption capacity but relatively lower cost, and meanwhile, the material A also has impurity removing capacity;
s2, deodorizing and deeply decoloring and purifying by using a porous material B with high surface area, which has high adsorption capacity on polar compounds containing nitrogen, sulfur and phosphorus elements and contains polar compounds of the elements and the hetero elements, to deeply deodorize and deeply decolor and purify;
s3, deeply deodorizing and removing impurities by using a porous material C which is modified and modified by the surface of an absorbable organic matter, and removing organic compounds which cause fishy smell of fish oil, particularly organic compounds containing nitrogen, sulfur and phosphorus elements;
s4, purifying treatment, namely after the color, impurities, rotten components, heavy metals and pesticide residues are removed, carrying out fish oil purifying treatment, namely carrying out reduced pressure distillation at the temperature of more than 220 ℃ and simultaneously introducing high-pressure steam at the temperature of more than 170 ℃, so as to thoroughly remove various small molecular organic matters with low adsorptivity and any possible microorganisms, and ensuring that the treated fish oil can reach the edible standard.
In the present invention, the suitable materials A include, but are not limited to, activated clay, activated carbon, attapulgite or other special oil decolorizers, and the materials B include, but are not limited to, activated clay, activated carbon, attapulgite and the like.
In the invention, the material C can also be used for simultaneously removing heavy metals and pesticide residues deeply.
In the invention, the steps S1-S4 are all to remove impurities, and the decoloring step S1 is mainly to remove pigments, physical impurities and partial polar impurities; a deodorizing and deep decolorizing and impurity removing step S2, wherein pigments and impurities are further removed, and polar micromolecular compounds containing nitrogen, sulfur and phosphorus are easy to generate odor; in the S3 step of deep deodorization and impurity removal, mainly removing organic compounds which are easy to cause fishy smell and organic micromolecular compounds containing nitrogen, sulfur and phosphorus elements.
In the present invention, the polar small molecular compound containing nitrogen, sulfur and phosphorus elements which is liable to generate odor includes hydrogen sulfide, thiol, ammonia, methylamine, phosphate.
In the invention, the organic small molecular compound containing nitrogen, sulfur and phosphorus elements comprises thioether, dimethylamine, trimethylamine and phosphate.
The invention also discloses a fish oil fishy smell removing and purifying device which comprises a top layer, a packing layer, a liquid leakage collecting layer, an oil inlet and outlet and heat exchange layer and a bottommost layer, wherein the top layer, the packing layer, the liquid leakage collecting layer, the oil inlet and outlet and heat exchange layer and the bottommost layer are distributed from top to bottom.
Preferably, the top layer has first pipeline, second pipeline, first pipeline and second pipeline are snakelike shape and crisscross distribution, be equipped with oil outlet pipe, oil inlet pipe on the first pipeline, be equipped with conduction oil import, conduction oil export on the second pipeline, the one end of oil outlet pipe is sealed.
Preferably, the oil outlet pipe is connected with the packing layer, the collecting liquid leakage layer, the oil inlet and outlet and heat exchange layer and the bottommost layer in parallel independently.
Preferably, a filter screen layer is arranged at the bottom of the top layer, and the filter screen layer is a macroporous supporting layer.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The method for removing fishy smell and purifying fish oil is characterized by comprising the following steps:
s1, decoloring and impurity removing: selecting proper materials to complete decolorization and preliminary impurity removal, wherein the step is mainly to complete decolorization by a material A with higher adsorption capacity but relatively lower cost, and meanwhile, the material A also has impurity removal capacity;
s2, deodorizing, deeply decoloring and removing impurities: the porous material B with high surface area, which has high adsorption capacity to polar compounds and contains nitrogen, sulfur and phosphorus elements, is used for deep deodorization, deep decolorization and impurity removal;
s3, deep deodorizing and impurity removing: removing organic compounds that cause fishy smell of fish oil, in particular organic compounds containing nitrogen, sulfur and phosphorus elements, by using a porous material C suitably modified and modified with a surface that absorbs organic matter;
s4, purifying: after the color, impurities, rotten components, heavy metals and pesticide residues are removed, fish oil is purified, wherein the purification treatment comprises reduced pressure distillation at the temperature of more than 220 ℃ and high-pressure steam at the temperature of more than 170 ℃ are introduced, so that various small molecular organic matters with low adsorptivity and any possible microorganisms are thoroughly removed, and the treated fish oil can reach the edible standard.
2. The method for removing fishy smell and purifying fish oil of claim 1 wherein material a includes but is not limited to activated clay, activated carbon, attapulgite;
the material B comprises, but is not limited to, activated clay, activated carbon and attapulgite.
3. The method for removing fishy smell and purifying fish oil of claim 1, wherein the material C can remove heavy metals and pesticide residues at the same time.
4. The method for removing fishy smell and purifying fish oil of claim 1, wherein the steps S1-S4 are all to remove impurities, and the decolorizing step S1 is to remove pigments, physical impurities and partial polar impurities; a deodorizing and deep decolorizing and impurity removing step S2, wherein pigments and impurities are further removed, and polar micromolecular compounds containing nitrogen, sulfur and phosphorus are easy to generate odor; in the S3 step of deep deodorization and impurity removal, organic compounds which are easy to cause fishy smell and organic micromolecular compounds containing nitrogen, sulfur and phosphorus elements are removed.
5. The method for removing fishy smell and purifying fish oil of claim 4 wherein the polar small molecular compounds containing nitrogen, sulfur and phosphorus which are prone to odor generation include hydrogen sulfide, thiol, ammonia, methylamine and phosphate.
6. The method for removing fishy smell and purifying fish oil of claim 4 wherein the small organic molecular compounds containing nitrogen, sulfur and phosphorus elements include thioether, dimethylamine, trimethylamine and phosphate.
7. The fish oil deodorization and purification device is characterized by comprising a top layer, a packing layer, a liquid leakage collecting layer, an oil inlet and outlet layer, a heat exchange layer and a bottommost layer, wherein the top layer, the packing layer, the liquid leakage collecting layer, the oil inlet and outlet layer, the heat exchange layer and the bottommost layer are distributed from top to bottom.
8. The fish oil deodorizing and purifying device as set forth in claim 7, wherein the top layer has a first pipe and a second pipe, the first pipe and the second pipe are in a serpentine shape and are distributed in a staggered manner, the first pipe is provided with an oil outlet pipe and an oil inlet pipe, the second pipe is provided with a heat transfer oil inlet and a heat transfer oil outlet, and one end of the oil outlet pipe is sealed.
9. The fish oil deodorizing and purifying apparatus as set forth in claim 7, wherein said oil outlet pipe is connected to the packing layer, the liquid collecting layer, the oil inlet and outlet and heat exchanging layer, the bottommost layer and is independently connected in parallel.
10. The fish oil deodorizing and purifying apparatus as set forth in claim 7, wherein the bottom of said top layer is provided with a filter layer, said filter layer being a macroporous support layer.
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Application publication date: 20231013 |