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Preparation method of nickel methionine and application of nickel methionine in animal feed additives

A feed additive and animal feed technology, which is applied in the field of preparation of methionine complexes, can solve the problems of nutrient component activity destruction, low biological potency, large gastrointestinal irritation, etc., and achieves less side reactions in animals, high biological potency, Small effect on gastrointestinal irritation

Active Publication Date: 2013-09-18
XINGJIA BIO ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, as the trace element nickel necessary for animals, inorganic metal salts are mostly used as animal feed additives at present. Animals must absorb and utilize the inorganic salts through various biological barriers to enter the body through free diffusion, etc., which is very irritating to the stomach. Low rate, large amount of addition, low biological potency, most of which will pollute the environment after being excreted by feces, and have a destructive effect on the activity of other nutrients (such as vitamins, etc.) in the feed

Method used

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  • Preparation method of nickel methionine and application of nickel methionine in animal feed additives
  • Preparation method of nickel methionine and application of nickel methionine in animal feed additives
  • Preparation method of nickel methionine and application of nickel methionine in animal feed additives

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Embodiment 1

[0019] Embodiment 1: the preparation of a kind of nickel methionine (the molar ratio of its methionine group: nickel element is 1:1).

[0020] A preparation method of nickel methionine of the present invention comprises the following steps:

[0021] After dissolving 263g of nickel sulfate hexahydrate and 120g of methionine in water together, adjust the pH value to 7.8 with 1mol / L sodium hydroxide solution, raise the temperature to 100°C, and fully stir the reaction for 3 hours. The wet material enters the fluidized granulator for drying and granulation, and the finished product is obtained after passing through an 80-mesh sieve. After testing (using the Kjeldahl method to measure the content of methionine in the finished product, and the indirect titration method to measure the content of nickel in the finished product, the same below), the finished product is nickel methionine, and the yield is 75%. The content of nickel methionine in the product is: nickel 17 %, Methionine ...

Embodiment 2

[0022] Example 2: Preparation of nickel methionine (the molar ratio of methionine group: nickel element is 1:1).

[0023] A preparation method of nickel methionine of the present invention comprises the following steps:

[0024] Dissolve 135g of methionine in water, raise the temperature to 60°C, adjust the pH value to 5.0 with 2mol / L potassium hydroxide solution, add 238g of nickel chloride hexahydrate, fully stir the reaction for 1 hour, and centrifuge after the reaction. The wet material enters the boiling granulator for drying and granulation, and the finished product is obtained after passing through a 30-mesh sieve. After testing, the finished product is nickel methionine with a yield of 80%. The content of nickel methionine in the product is 17% nickel and 44% methionine.

Embodiment 3

[0025] Example 3: Preparation of nickel methionine (the molar ratio of methionine group: nickel element is 2:1).

[0026] A preparation method of nickel methionine of the present invention comprises the following steps:

[0027] Add 81g of sodium hydroxide solid into water, add 330g of methionine after dissolving, heat up to 80°C, add 263g of nickel sulfate hexahydrate, fully stir and react for 0.5h, centrifuge dehydration after the reaction, and the wet material after centrifugal dehydration enters boiling granulation Dry and granulate in the machine, and pass through a 100-mesh sieve to get the finished product. After testing, the finished product is nickel methionine with a yield of 94%. The content of nickel methionine in the product is 12% nickel and 62% methionine.

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Abstract

The invention discloses a preparation method of nickel methionine and applications of the nickel methionine. The preparation method comprises the following steps of: dissolving an inorganic nickel compound and methionine in water, adjusting the ph value, and raising the temperature; or dissolving the methionine in water, raising the temperature, adjusting the ph value, and adding an inorganic nickel compound; or mixing the methionine and an alkali liquor and raising the temperature, and adding an inorganic nickel compound; and finally, stirring and reacting completely, centrifuging, drying and pelletizing the centrifuged wet material, and sieving to obtain the finished product nickel methionine. The preparation method has s simple technological process, low energy consumption, low cost, environmental protection and no pollution. After being applied in animal feed additives, the nickel methionine has the advantages of low additive amount, high biological value, obvious growth-promoting effect, less side reaction of animals, and safety and no drug resistance.

Description

technical field [0001] The invention relates to a preparation method and application of a feed additive, in particular to a preparation method and application of a methionine complex. Background technique [0002] Methionine is the only amino acid containing sulfur among the essential amino acids. It participates in the transfer of methyl groups in animals, the metabolism of phosphorus and the synthesis of adrenaline, choline and creatine; it is the raw material for the synthesis of proteins and cystine; Under normal circumstances, methionine is absorbed by the animal body, and under the action of various amino acid enzymes, it is mainly decomposed and anabolized in the liver and kidney, and transformed into protein, nitrogen-containing active substances or transformed into protein for the growth and development of the body. energy. When methionine is lacking, it will cause loss of appetite, slow growth or no weight gain, kidney enlargement and iron accumulation in the live...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C323/52
Inventor 黄逸强
Owner XINGJIA BIO ENG CO LTD