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Preparation method of attapulgite mycotoxin adsorbent with antibacterial function

A mycotoxin adsorption, attapulgite technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of unsatisfactory removal of zearalenone, lack of alternative antibiotics, and large surfactant dosage. To overcome the problem of feed safety, enhance the affinity and the interaction force between chemical functional groups, and the process is easy to control

Active Publication Date: 2017-10-13
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Description
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  • Application Information

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Problems solved by technology

Chinese patent CN 103816859 A (a preparation method of betaine-modified attapulgite) adopts betaine to organically modify attapulgite, which greatly improves the adsorption of aflatoxin, but the Ketone removal is still not ideal
However, although betaine surfactant modification can change the surface properties of clay minerals to increase its adsorption capacity for specific target molecules, its antibacterial performance is not significant, and the product does not have the ability to replace antibiotics
In addition, because bentonite has a lamellar structure, the amount of surfactant added in the modification process is too large, which increases the production cost, and the layered structure of bentonite makes it adsorb mycotoxins while also adsorbing nutrients in the feed. points, not conducive to practical application

Method used

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  • Preparation method of attapulgite mycotoxin adsorbent with antibacterial function
  • Preparation method of attapulgite mycotoxin adsorbent with antibacterial function

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: take 100g attapulgite clay and be mixed with the ore slurry of mass concentration 10%, then add the sulfuric acid of attapulgite quality 3% and attapulgite quality 5% organic acid salt composite modifier (wherein potassium diformate and The mass ratio of potassium sorbate is 8:2), stirred at room temperature for 2 hours, continued to add cetyl dimethyl betaine with 5% mass of attapulgite clay, gradually raised the temperature to 45±5°C, reacted for 2 hours, centrifuged, washed , drying and pulverizing to obtain an attapulgite mycotoxin adsorbent with antibacterial function.

Embodiment 2

[0029] Embodiment 2: take 100g attapulgite clay and be mixed with the ore slurry of mass concentration 10%, then add the sulfuric acid of attapulgite quality 5% and attapulgite quality 10% organic acid salt composite modifier (wherein potassium diformate and The mass ratio of potassium sorbate is 6:4), stirred at room temperature for 4 hours, passed through a 200-mesh sieve to remove quartz impurities, then added tetradecyl dimethyl betaine with 10% of the mass of attapulgite clay, and gradually raised the temperature to 60±5°C , after reacting for 3 hours, centrifuge, wash, dry and pulverize to obtain the attapulgite mycotoxin adsorbent with antibacterial function.

Embodiment 3

[0030] Embodiment 3: Take 100g of attapulgite clay and prepare it into a slurry with a mass concentration of 15%, then add sulfuric acid with 7% of attapulgite mass and organic acid salt compound modifier with 10% attapulgite mass (wherein: two The mass ratio of potassium formate to potassium sorbate is 5:5), stirred at room temperature for 4 hours, passed through a 200-mesh sieve to remove quartz impurities, then added cocamidopropyl betaine with 5% mass of attapulgite hydroclay, and gradually heated to 80± After reacting at 5°C for 4 hours, centrifuge, wash, dry, and pulverize to obtain an attapulgite mycotoxin adsorbent with antibacterial function.

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Abstract

The invention discloses a preparation method of an attapulgite mycotoxin adsorbent with an antibacterial function. The preparation method comprises the following steps: firstly, modifying attapulgite by adopting inorganic sulfuric acid and an organic acid salt compound modifier with the antibacterial function; secondly, adding a betaine surfactant to carry out surface charge regulation and control on the attapulgite to obtain the attapulgite mycotoxin adsorbent with the antibacterial function. A product provided by the invention can be used for effectively removing mycotoxin in feed; meanwhile, the product has the antibacterial function and the dosage of antibiotics in the feed is replaced or reduced.

Description

technical field [0001] The invention relates to a preparation method of an attapulgite mycotoxin adsorbent with antibacterial function, belonging to the field of deep processing of non-metallic ores. Background technique [0002] Mycotoxins are anti-nutritional factors present in feed and raw materials, and are highly toxic secondary metabolites of molds. It can cause acute and chronic poisoning of animals; reduce animal feed intake; reduce animal production performance, feed conversion rate and reproductive performance; inhibit animal immune function; at the same time, mycotoxins can also remain in livestock and poultry products, bringing human health potential safety hazard. Therefore, finding a suitable and effective method to control it is an urgent task for the development of animal husbandry. [0003] There are many kinds of mycotoxins, the common ones in feed are: aflatoxin, zearalenone, T-2 toxin, ochratoxin, fumagillin and vomitoxin. Adsorption is one of the most...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30
CPCB01J20/12B01J20/22
Inventor 康玉茹王爱勤王文波牟斌汪琴
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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