CN111000114A - Preparation method of inorganic antibacterial agent for feed - Google Patents
Preparation method of inorganic antibacterial agent for feed Download PDFInfo
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- CN111000114A CN111000114A CN202010016939.2A CN202010016939A CN111000114A CN 111000114 A CN111000114 A CN 111000114A CN 202010016939 A CN202010016939 A CN 202010016939A CN 111000114 A CN111000114 A CN 111000114A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
- A23L3/358—Inorganic compounds
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- Life Sciences & Earth Sciences (AREA)
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- Fodder In General (AREA)
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Abstract
The invention discloses a preparation method of inorganic antibacterial agent for feed, which comprises the steps of roasting natural zeolite at high temperature, loading copper and zinc on the zeolite, coating the copper and zinc-loaded zeolite with carbon, drying and crushing filter cakes, wherein the prepared inorganic antibacterial agent is used as a feed additive for livestock, aquatic animals, cattle and sheep, can replace the feed to promote the production of antibiotics, has strong antibacterial effect and drug property which is difficult to generate by bacteria, can adsorb mycotoxin, is safe to use, can effectively inhibit the proliferation of pathogenic bacteria advocated by animals, protects intestinal mucosa from being invaded by the pathogenic bacteria, keeps the intestinal mucosa in a healthy state all the time, is beneficial to the secretion of digestive enzyme and the digestion of feed nutrients, obviously improves the survival rate of animals, greatly reduces the diarrhea of the animals, improves the production performance, can replace the antibiotics and the antibacterial drugs, replaces zinc oxide with high growth promoting and zinc dosage, and produces products with antibiotic residues, the invention can promote the greening process of the breeding industry and reduce the pollution of high copper and high zinc to the environment.
Description
Technical Field
The invention relates to the technical field of feeds, in particular to a preparation method of an inorganic antibacterial agent for feeds.
Background
The antibiotic additive can improve the weight gain rate survival rate and the reproduction rate of livestock and poultry and the utilization rate of feed, can reduce the breeding cost to a certain extent, more importantly, the antibiotic can prevent and treat some livestock and poultry diseases, obviously improves the economic benefit of breeders, and plays a role in protecting driving and navigation for livestock and poultry breeding; with the rapid development of livestock and poultry breeding industry, the breeding mode gradually goes to scale, intensification and standardization, and breeding enterprises have stronger and stronger dependence on antibiotics; however, with the use of antibiotics in animal feed, many disadvantages arise, and the residue of antibiotics in animal products and long-term use of antibiotics can cause drug resistance of animals, even cause drug resistance of microorganisms in human bodies and the appearance of super bacteria. With the continuous improvement of living standard of people, the requirements of people on green health food are higher and higher, and the use of antibiotics gradually restricts the sustainable development of livestock and poultry industry; according to the report of the world health organization, the current antibiotic tolerance causes 70 million deaths each year, and antibiotic pollution also has a bad influence on the environment: firstly, the animal remedy is not completely absorbed by the animal, and can be discharged along with the excrement and urine, secondly, the fishery medicine used in the aquaculture directly is used, so that the antibiotics are distributed in soil water or air after entering the environment, and are subjected to the action of various factors in the environment, so that the antibiotics are returned in different ways such as absorption, degradation and persistent existence, and various beneficial harmful microorganisms in the environment are restricted, and the influence of different degrees is caused on the growth of animals and plants. As can be seen from the above, the long-term use and residue of antibiotics can cause new pollution to air drinking water or soil, and therefore, there is a need for those skilled in the relevant field to research a preparation method of inorganic antibacterial agent for feed.
Disclosure of Invention
In order to solve the technical problems, the technical scheme provided by the invention is as follows: a preparation method of inorganic antibacterial agent for feed comprises the following steps:
(1) high-temperature roasting of natural zeolite: pulverizing natural zeolite into powder with Raymond mill, ensuring that the pass rate of 325 meshes is more than 95%, roasting the prepared zeolite powder for 1-4 hours in a high-temperature roasting furnace to dredge zeolite channels, and removing organic impurities;
(2) loading copper and zinc on zeolite: zeolite powder baked at high temperature and water are mixed according to the weight ratio of 1: 10 adding the mixture into a reaction kettle to form ore pulp, respectively adding copper salt accounting for 1-10% of the weight of the zeolite powder and zinc salt accounting for 1-30% of the weight of the zeolite powder into the ore pulp, adjusting the pH value of the ore pulp to 4.5-6.5, then heating the reaction kettle to 40-90 ℃, keeping the reaction time for 1-10 hours, and preparing the ore pulp into a filter cake after the reaction is finished;
(3) drying and scattering the filter cake obtained in the step (2), and crushing to 325 meshes to obtain the copper-carrying zinc-carrying zeolite;
(4) roasting the copper-loaded and zinc-loaded zeolite obtained in the step (3) in a high-temperature kiln for 1-10 hours to obtain an inorganic antibacterial agent with copper ions and zinc ions loaded and antibacterial effects;
(5) and (5) wrapping the inorganic antibacterial agent obtained in the step (4) by humic acid with the content of 10-50% to obtain the antibacterial agent for the feed.
Preferably, the roasting temperature of the high-temperature roasting furnace in the step (1) is 400-600 ℃.
Preferably, the copper salt is copper chloride, copper nitrate, copper sulfate or hydrate thereof, and the zinc salt is zinc chloride, zinc nitrate, zinc sulfate or hydrate thereof.
Preferably, the humic acid is sodium humate.
Preferably, the prepared inorganic antibacterial agent is used as a feed additive for livestock, poultry, aquatic animals, cattle and sheep, and replaces the production promotion antibiotics in the feed.
The inorganic antibacterial agent takes inorganic non-metallic ore as a carrier, fully utilizes the adsorbability ion exchange property of the inorganic non-metallic ore, and adsorbs silver ions, copper ions, zinc ions, silver ions and copper ions, wherein the zinc ions are one of three safe antibacterial ions recognized all over the world, have broad-spectrum antibacterial property and do not generate drug resistance; the antibacterial principle of the zinc-loaded zeolite is as follows: the zinc ions with positive charges and the microbial cell membranes with negative charges are firmly adsorbed and damaged under the action of coulomb force, so that bacteria are killed; in addition, the zeolite can adsorb aflatoxin and escherichia coli, ammonia nitrogen and hydrogen sulfide gas, heavy metal and animal intestinal health, so that the zeolite is widely applied to feeds, and zinc ions are necessary trace elements required by animals, so that the zinc-loaded zeolite is safe;
the inorganic antibacterial agent prepared by the invention can be used as a feed additive for livestock, poultry, aquatic animals, cattle and sheep, replaces production-promoting antibiotics in feed, and has strong antibacterial effect and drug property which is not easy to generate by bacteria; can adsorb mycotoxin and is safe to use; the proliferation of pathogenic bacteria advocated by animals can be effectively inhibited, the intestinal mucosa is protected from being invaded by virus bacteria, and the intestinal mucosa is always in a healthy state; the feed additive is beneficial to secretion of digestive enzyme and digestion of feed nutrients, remarkably improves the survival rate of animals, greatly reduces diarrhea of the animals and improves the production performance; can replace antibiotics and antibacterial drugs, replace growth-promoting high-zinc high-dosage zinc oxide, produce antibiotic residual products; the invention can promote the greening process of the breeding industry and reduce the pollution of high copper and high zinc to the environment.
Detailed Description
Example one
A preparation method of inorganic antibacterial agent for feed comprises the following steps:
(1) high-temperature roasting of natural zeolite: pulverizing natural zeolite into powder with Raymond mill, ensuring that the pass rate of 325 meshes is more than 95%, roasting the prepared zeolite powder for 1 hour in a high-temperature roasting furnace to dredge zeolite channels, and removing organic impurities;
(2) loading copper and zinc on zeolite: zeolite powder baked at high temperature and water are mixed according to the weight ratio of 1: 10 adding the mixture into a reaction kettle to form ore pulp, respectively adding copper salt accounting for 1 percent of the weight of the zeolite powder and zinc salt accounting for 1 percent of the weight of the zeolite powder into the ore pulp, adjusting the pH value of the ore pulp to 4.5, heating the reaction kettle to 40 ℃, keeping the reaction time for 10 hours, and preparing the ore pulp into a filter cake after the reaction is finished;
(3) drying and scattering the filter cake obtained in the step (2), and crushing to 325 meshes to obtain the copper-carrying zinc-carrying zeolite;
(4) roasting the copper-loaded and zinc-loaded zeolite obtained in the step (3) in a high-temperature kiln for 10 hours to obtain an inorganic antibacterial agent loaded with copper ions and zinc ions and having an antibacterial effect;
(5) and (5) wrapping the inorganic antibacterial agent obtained in the step (4) with humic acid with the content of 10% to obtain the antibacterial agent for the feed.
As a preferred embodiment of this example, the temperature of the high-temperature baking furnace in the step (1) is 400 ℃.
In a preferred embodiment of this embodiment, the copper salt is copper chloride, copper nitrate, copper sulfate or a hydrate thereof, and the zinc salt is zinc chloride, zinc nitrate, zinc sulfate or a hydrate thereof.
In a preferred embodiment of this embodiment, the humic acid is sodium humate.
As a preferred embodiment of the embodiment, the prepared inorganic antibacterial agent is used as a feed additive for livestock, aquatic animals, cattle and sheep, and is used for replacing production promotion antibiotics in feed.
Example two
A preparation method of inorganic antibacterial agent for feed comprises the following steps:
(1) high-temperature roasting of natural zeolite: pulverizing natural zeolite into powder with Raymond mill, ensuring that the pass rate of 325 meshes is more than 95%, roasting the prepared zeolite powder for 4 hours in a high-temperature roasting furnace to dredge zeolite channels, and removing organic impurities;
(2) loading copper and zinc on zeolite: zeolite powder baked at high temperature and water are mixed according to the weight ratio of 1: 10 adding the mixture into a reaction kettle to form ore pulp, respectively adding copper salt accounting for 10 percent of the weight of the zeolite powder and zinc salt accounting for 30 percent of the weight of the zeolite powder into the ore pulp, adjusting the pH value of the ore pulp to 6.5, heating the reaction kettle to 90 ℃, keeping the reaction time for 1 hour, and preparing the ore pulp into a filter cake after the reaction is finished;
(3) drying and scattering the filter cake obtained in the step (2), and crushing to 325 meshes to obtain the copper-carrying zinc-carrying zeolite;
(4) roasting the copper-loaded and zinc-loaded zeolite obtained in the step (3) in a high-temperature kiln for 1 hour to obtain an inorganic antibacterial agent loaded with copper ions and zinc ions and having an antibacterial effect;
(5) and (5) wrapping the inorganic antibacterial agent obtained in the step (4) with humic acid with the content of 10% to obtain the antibacterial agent for the feed.
As a preferred embodiment of this example, the temperature of the high-temperature baking furnace in the step (1) is 600 ℃.
In a preferred embodiment of this embodiment, the copper salt is copper chloride, copper nitrate, copper sulfate or a hydrate thereof, and the zinc salt is zinc chloride, zinc nitrate, zinc sulfate or a hydrate thereof.
In a preferred embodiment of this embodiment, the humic acid is sodium humate.
As a preferred embodiment of the embodiment, the prepared inorganic antibacterial agent is used as a feed additive for livestock, aquatic animals, cattle and sheep, and is used for replacing production promotion antibiotics in feed.
EXAMPLE III
A preparation method of inorganic antibacterial agent for feed comprises the following steps:
(1) high-temperature roasting of natural zeolite: pulverizing natural zeolite into powder with Raymond mill, ensuring that the pass rate of 325 meshes is more than 95%, roasting the prepared zeolite powder for 3 hours in a high-temperature roasting furnace to dredge zeolite channels, and removing organic impurities;
(2) loading copper and zinc on zeolite: zeolite powder baked at high temperature and water are mixed according to the weight ratio of 1: 10 adding the mixture into a reaction kettle to form ore pulp, respectively adding copper salt accounting for 5 percent of the weight of the zeolite powder and zinc salt accounting for 15 percent of the weight of the zeolite powder into the ore pulp, adjusting the pH value of the ore pulp to 5, heating the reaction kettle to 65 ℃, keeping the reaction time for 6 hours, and preparing the ore pulp into a filter cake after the reaction is finished;
(3) drying and scattering the filter cake obtained in the step (2), and crushing to 325 meshes to obtain the copper-carrying zinc-carrying zeolite;
(4) roasting the copper-loaded and zinc-loaded zeolite obtained in the step (3) in a high-temperature kiln for 6 hours to obtain an inorganic antibacterial agent loaded with copper ions and zinc ions and having an antibacterial effect;
(5) and (5) wrapping the inorganic antibacterial agent obtained in the step (4) with 30% humic acid to obtain the antibacterial agent for the feed.
As a preferred embodiment of this example, the temperature of the high-temperature baking furnace in the step (1) is 500 ℃.
In a preferred embodiment of this embodiment, the copper salt is copper chloride, copper nitrate, copper sulfate or a hydrate thereof, and the zinc salt is zinc chloride, zinc nitrate, zinc sulfate or a hydrate thereof.
In a preferred embodiment of this embodiment, the humic acid is sodium humate.
As a preferred embodiment of the embodiment, the prepared inorganic antibacterial agent is used as a feed additive for livestock, aquatic animals, cattle and sheep, and is used for replacing production promotion antibiotics in feed.
Example four
A preparation method of inorganic antibacterial agent for feed comprises the following steps:
(1) high-temperature roasting of natural zeolite: grinding natural zeolite into powder by a Raymond mill, ensuring that the pass rate of the fineness of 325 meshes is more than 95 percent, roasting the prepared zeolite powder for 2 hours by a high-temperature roasting furnace to dredge zeolite channels and remove organic impurities;
(2) loading copper and zinc on zeolite: zeolite powder baked at high temperature and water are mixed according to the weight ratio of 1: 10 adding the mixture into a reaction kettle to form ore pulp, respectively adding copper salt accounting for 4 percent of the weight of the zeolite powder and zinc salt accounting for 1 to 30 percent of the weight of the zeolite powder into the ore pulp, adjusting the pH value of the ore pulp to 5.5, heating the reaction kettle to 70 ℃, keeping the reaction time for 6 hours, and preparing the ore pulp into a filter cake after the reaction is finished;
(3) drying and scattering the filter cake obtained in the step (2), and crushing to 325 meshes to obtain the copper-carrying zinc-carrying zeolite;
(4) roasting the copper-loaded and zinc-loaded zeolite obtained in the step (3) in a high-temperature kiln for 7 hours to obtain an inorganic antibacterial agent loaded with copper ions and zinc ions and having an antibacterial effect;
(5) and (5) wrapping the inorganic antibacterial agent obtained in the step (4) with humic acid with the content of 35% to obtain the antibacterial agent for the feed.
As a preferred embodiment of this example, the temperature of the high-temperature baking furnace in the step (1) is 550 ℃.
In a preferred embodiment of this embodiment, the copper salt is copper chloride, copper nitrate, copper sulfate or a hydrate thereof, and the zinc salt is zinc chloride, zinc nitrate, zinc sulfate or a hydrate thereof.
In a preferred embodiment of this embodiment, the humic acid is sodium humate.
As a preferred embodiment of the embodiment, the prepared inorganic antibacterial agent is used as a feed additive for livestock, aquatic animals, cattle and sheep, and is used for replacing production promotion antibiotics in feed.
EXAMPLE five
A preparation method of inorganic antibacterial agent for feed comprises the following steps:
(1) high-temperature roasting of natural zeolite: pulverizing natural zeolite into powder with Raymond mill, ensuring that the pass rate of 325 meshes is more than 95%, roasting the prepared zeolite powder for 3 hours in a high-temperature roasting furnace to dredge zeolite channels, and removing organic impurities;
(2) loading copper and zinc on zeolite: zeolite powder baked at high temperature and water are mixed according to the weight ratio of 1: 10 adding the mixture into a reaction kettle to form ore pulp, respectively adding copper salt accounting for 4 percent of the weight of the zeolite powder and zinc salt accounting for 25 percent of the weight of the zeolite powder into the ore pulp, adjusting the pH value of the ore pulp to 6, heating the reaction kettle to 50 ℃, keeping the reaction time for 5 hours, and preparing the ore pulp into a filter cake after the reaction is finished;
(3) drying and scattering the filter cake obtained in the step (2), and crushing to 325 meshes to obtain the copper-carrying zinc-carrying zeolite;
(4) roasting the copper-loaded and zinc-loaded zeolite obtained in the step (3) in a high-temperature kiln for 5 hours to obtain an inorganic antibacterial agent loaded with copper ions and zinc ions and having an antibacterial effect;
(5) and (5) wrapping the inorganic antibacterial agent obtained in the step (4) with humic acid with the content of 40% to obtain the antibacterial agent for the feed.
As a preferred embodiment of this example, the temperature of the high-temperature baking furnace in the step (1) is 600 ℃.
In a preferred embodiment of this embodiment, the copper salt is copper chloride, copper nitrate, copper sulfate or a hydrate thereof, and the zinc salt is zinc chloride, zinc nitrate, zinc sulfate or a hydrate thereof.
In a preferred embodiment of this embodiment, the humic acid is sodium humate.
As a preferred embodiment of the embodiment, the prepared inorganic antibacterial agent is used as a feed additive for livestock, aquatic animals, cattle and sheep, and is used for replacing production promotion antibiotics in feed.
The present invention and the embodiments thereof have been described above without limitation, and it is within the scope of the present invention that those skilled in the art should be able to devise similar structural modes and embodiments without inventive changes without departing from the spirit and scope of the present invention.
Claims (5)
1. The preparation method of the inorganic antibacterial agent for the feed is characterized by comprising the following steps:
(1) high-temperature roasting of natural zeolite: pulverizing natural zeolite into powder with Raymond mill, ensuring that the pass rate of 325 meshes is more than 95%, roasting the prepared zeolite powder for 1-4 hours in a high-temperature roasting furnace to dredge zeolite channels, and removing organic impurities;
(2) loading copper and zinc on zeolite: zeolite powder baked at high temperature and water are mixed according to the weight ratio of 1: 10 adding the mixture into a reaction kettle to form ore pulp, respectively adding copper salt accounting for 1-10% of the weight of the zeolite powder and zinc salt accounting for 1-30% of the weight of the zeolite powder into the ore pulp, adjusting the pH value of the ore pulp to 4.5-6.5, then heating the reaction kettle to 40-90 ℃, keeping the reaction time for 1-10 hours, and preparing the ore pulp into a filter cake after the reaction is finished;
(3) drying and scattering the filter cake obtained in the step (2), and crushing to 325 meshes to obtain the copper-carrying zinc-carrying zeolite;
(4) roasting the copper-loaded and zinc-loaded zeolite obtained in the step (3) in a high-temperature kiln for 1-10 hours to obtain an inorganic antibacterial agent with copper ions and zinc ions loaded and antibacterial effects;
(5) and (5) wrapping the inorganic antibacterial agent obtained in the step (4) by humic acid with the content of 10-50% to obtain the antibacterial agent for the feed.
2. The method for preparing inorganic antibacterial agent for feed according to claim 1, wherein the roasting temperature in the high-temperature roasting furnace in the step (1) is 400-600 ℃.
3. The method for preparing inorganic antibacterial agent for feed according to claim 1, wherein the copper salt is cupric chloride, cupric nitrate, cupric sulfate or hydrate thereof, and the zinc salt is zinc chloride, zinc nitrate, zinc sulfate or hydrate thereof.
4. The method for preparing the inorganic antibacterial agent for feed according to claim 1, wherein the humic acid is sodium humate.
5. The method for preparing inorganic antibacterial agent for feed according to claim 1, wherein the prepared inorganic antibacterial agent is used as feed additive for livestock, aquatic animals, cattle and sheep to replace production-promoting antibiotics in feed.
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Cited By (2)
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| CN112641643A (en) * | 2021-01-07 | 2021-04-13 | 辽宁工程技术大学 | Activated zinc-loaded zeolite facial mask and preparation method thereof |
| CN115024392A (en) * | 2022-06-15 | 2022-09-09 | 长沙傲鑫生物工程有限公司 | Preparation method for loading metal ion compound by using non-metallic mineral |
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