Preparation method of esterified glucomannan/activated carbon/attapulgite composite mycotoxin adsorbent

A technology for mycotoxin adsorption and glucomannan, which is applied in chemical instruments and methods, and other chemical processes, can solve the problems of low application rate and achieve the effects of easy use and storage, cost reduction, and water absorption

Active Publication Date: 2018-04-17
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of surface active silanol groups, natural attapulgite is only effective against mycotoxins with strong polarity, resulting in a low application rate in the feed industry

Method used

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  • Preparation method of esterified glucomannan/activated carbon/attapulgite composite mycotoxin adsorbent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Weigh 10 g of attapulgite, disperse it in 100 ml of water, add 2 g of disodium hydrogen phosphate, stir for 30 min, adjust pH=2 with hydrochloric acid, continue stirring for 5 min, add 10 g of glucomannan, and stir for 2 h at 60 ° C. The product was washed three times with 60% ethanol, then twice with absolute ethanol, and dried in vacuum at 60°C for 24 hours to obtain a mycotoxin adsorbent.

Embodiment 2

[0021] Example 2: Weigh 10g of attapulgite and 0.1g of coconut shell activated carbon, disperse them in 200ml of water, add 2g of sodium pyrophosphate, stir for 30min, adjust pH=2 with 1% citric acid, continue stirring for 30min, add 10g of glucomannan The polysaccharide was stirred and reacted at 50°C for 4 hours, sieved, washed, dried, and ground to obtain a mycotoxin adsorbent.

Embodiment 3

[0022] Example 3: Weigh 10 g of attapulgite and 0.3 g of woody activated carbon, disperse them in 100 ml of water, add 0.7 g of sodium hexametaphosphate, stir for 30 min, adjust pH=3 with mass concentration 1% citric acid, continue stirring for 15 min, add 2 g of glucose Mannan was stirred and reacted at 60°C for 3 hours, sieved, washed, dried, and ground to obtain a mycotoxin adsorbent.

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Abstract

The invention discloses a preparation method of an esterified glucomannan/activated carbon/attapulgite composite mycotoxin adsorbent. The preparation method comprises the following steps: taking sodium phosphates as an attapulgite dispersing agent and a glucomannan esterifying agent, and organically combining attapulgite dispersing, activated carbon material supporting and glucomannan esterifyingby virtue of an integrating technology, thereby obtaining the mycotoxin adsorbent with low cost and high-efficiency detoxification. The product has the effects of effectively preventing mycotoxin pollution in feed and protecting animal health.

Description

technical field [0001] The invention relates to a preparation method of esterified glucomannan / activated carbon / attapulgite composite mycotoxin adsorbent. Background technique [0002] Mycotoxin contamination of grain and feed, causing serious harm to animal and human health, has become a worldwide problem. Commonly used methods to reduce toxin hazards include physical adsorption, activated carbon adsorption, chemical detoxification, enzymatic biodegradation, and yeast cell wall immune enhancement and adsorption. [0003] Studies have shown that esterified glucomannan has better adsorption properties for mycotoxins due to its porous and large surface area, and can effectively adsorb (combine) different types of mycotoxins, including common aflatoxins, T- 2 toxin, zearalenone, deoxynivalenol, etc. Chinese patent CN106912686A discloses a method for preparing a feed mycotoxin adsorbent, which uses sodium hexametaphosphate to esterify konjac glucomannan to prepare esterified g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30
CPCB01J20/12B01J20/20B01J20/24
Inventor 康玉茹王爱勤王文波牟斌惠爱平
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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