Preparation method of illite smectite mixed clay mycotoxin adsorbent

A toxin adsorbent and clay mold technology, applied in chemical instruments and methods, other chemical processes, animal feed, etc., can solve the problems of limited mycotoxin adsorption capacity, etc., and achieve easy large-scale production, mild conditions, and simple process Effect

Active Publication Date: 2014-06-11
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Naturally produced Yimon mixed clay has a hydrophilic negative surface charge, and has strong adsorption properties for mycotoxins with polar groups, such

Method used

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  • Preparation method of illite smectite mixed clay mycotoxin adsorbent

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Example Embodiment

[0016] Example 1: Weigh the dodecyltrimethylammonium bromide with 5 times the cation exchange capacity of the Imon mixed clay, dissolve it in an appropriate amount of water, then add the Imon mixed clay to prepare a 5% mass concentration slurry, and then react at 60°C 12h, filter the product, wash with water, use AgNO 3 After checking the absence of Br-, filter press, dry, and pulverize to obtain modified Imon mixed clay mycotoxin adsorbent. The adsorbent's in vitro removal rates for aflatoxins and zearalenone were 100 and 82%, respectively.

Example Embodiment

[0017] Example 2: Weigh the tetradecyltrimethylammonium bromide of 2 times the cation exchange capacity of the Imon mixed clay, dissolve it in an appropriate amount of water, then add the Imon mixed clay to prepare a 5% mass concentration slurry, and then react at 75°C 6h, filter the product, wash with water, use AgNO 3 After checking the absence of Br-, filter press, dry, and pulverize to obtain modified Imon mixed clay mycotoxin adsorbent. The adsorbent's in vitro removal rates for aflatoxins and zearalenone were 100 and 78%, respectively.

Example Embodiment

[0018] Example 3: Weigh hexadecyltrimethylammonium bromide 1.5 times the cation exchange capacity of the Yimeng mixed clay, dissolve it in an appropriate amount of water, and then add the Yimeng mixed clay to prepare a 5% mass concentration slurry, and then react at 80°C 4h, filter the product, wash with water, use AgNO 3 After checking the absence of Br-, filter press, dry, and pulverize to obtain modified Imon mixed clay mycotoxin adsorbent. The adsorbent's in vitro removal rates for aflatoxins and zearalenone were 100 and 85%, respectively.

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Abstract

The invention discloses a preparation method of an illite smectite mixed clay mycotoxin adsorbent. The method comprises the steps of dissolving quaternary ammonium salt with carbon chains with different lengths into a water solution, and then adding illite smectite mixed clay for intercalation reaction; carrying out filter pressing on the product, and drying and grinding to obtain the illite smectite mixed clay mycotoxin adsorbent. The illite smectite mixed clay mycotoxin adsorbent is capable of effectively adsorbing multiple mycotoxins in feed, so that the feed conversion ratio is increased, the feed cost is reduced, and the health of livestock and poultry can be improved.

Description

technical field [0001] The invention relates to the field of feed additives, in particular to a preparation method of an Imon mixed clay mycotoxin adsorbent. Background technique [0002] Mycotoxin is an anti-nutritional factor present in feed and raw materials, and is a highly toxic secondary metabolite of mold. It can cause: acute and chronic poisoning of animals, reduce animal feed intake, reduce animal production performance, feed conversion rate, reproductive performance, and inhibit animal immune function. potential safety hazards. According to the statistics of the Food and Agriculture Organization of the United Nations, about 25% of the grains in the world are polluted by mycotoxins to varying degrees, and 5%-7% of the grains and feeds lose their feeding value due to mildew. In modern farming, the treatment of mycotoxins brings economic losses of hundreds of millions of yuan to livestock and poultry production every year. Therefore, finding a suitable and effectiv...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/30A23K1/00
Inventor 王爱勤康玉茹牟斌王文波汪琴
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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