Process for preparing feed nano additive to adsorb fungal toxin from feed

A feed additive and mycotoxin technology, applied in the field of preparation of nano-feed additives, can solve problems such as incompleteness, poor feed palatability, excessive crude ash content, etc., to enhance immune function, improve production performance, and increase egg production Effect

Inactive Publication Date: 2002-10-09
ZHEJIANG UNIV
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Problems solved by technology

Physical methods, chemical methods, and biological methods all have certain detoxification effects, but there are disadvantages such as time-consuming, secondary pollution, destruction of nutrients in feed, and incomplete detoxification. There are more or less deficiencies, and it is difficult to practically promote and apply it in the feed and breeding industry on a large scale; and the adsorption method is valued by academia and industry because of its safety and convenience, and no adverse effects on livestock and poultry.
[0004] At

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 1) According to the weight ratio of nano-montmorillonite: sodium chloride at a ratio of 1:0.1, add water and stir evenly to make a suspension slurry with a concentration of 20%, and wash it with water for 5 to 7 times until there is no Cl - , Use 0.1mol / L nitrate solution to detect that there is no white precipitate, and re-make a 5% concentration of mineral slurry with water;

[0013] 2) Under high-speed stirring, add glucomannan equivalent to 10% of the mineral weight in the above-mentioned slurry, continue to stir and react for 15 hours at a reaction temperature of 85°C, then age at 50°C for 2 days, wash 5 times with water, and centrifuge for dehydration. ;

[0014] 3) The filter residue is dried under vacuum at a temperature lower than 80°C and pulverized by a jet mill dry method.

[0015] 4) The nano feed additive prepared as described above is effective against aflatoxin B 1 , B 2 , G 1 , G 2 The in vitro adsorption rates of zearalenone, ochratoxin, T-2 toxin and fusa...

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Abstract

A feed nano additive for adsorbing fungal toxin in feed is prepared through proportionally mixing montmorillonite, sodium chloride and water, stirring, water washing, preparing pulp again; adding glucomannan while high-speed stirring, reaction, ageing, water washing, dewatering; drying filter residue and breaking. Its advantages are broad-spectrum adsorption of different toxins, high adsorptive power, no influence of pH value, low residual and low dosage (0.02-0.2%).

Description

Technical field [0001] The invention relates to a preparation method of a nano feed additive capable of adsorbing mycotoxins in feed. Background technique [0002] According to statistics, 25% of the world's grains are infected by mycotoxins. Common mycotoxins are aflatoxin, zearalenone, ochratoxin, T-2 toxin, fusarium toxin, fumonisin, emeticin, ergot alkaloid and so on. The milder mycotoxins in the feed will reduce the livestock and poultry’s feed intake, poor growth, and lower feed efficiency. The severe ones will cause the growth of the animals to be blocked, poisoned or killed, causing greater economic losses; more serious, residues in livestock products The mycotoxins can endanger human health through the food chain. A large number of epidemiological studies have shown that aflatoxin is one of the important causes of human liver cancer. Therefore, eliminating the harm of mycotoxins is a major problem that needs to be solved urgently in animal husband...

Claims

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Application Information

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IPC IPC(8): A23K20/163A23K20/22A23K20/28
CPCA23K20/28A23K20/163A23K20/22
Inventor 许梓荣胡彩虹夏枚生邓岳松
Owner ZHEJIANG UNIV
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