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Preparation method of glycine zinc complex

A technology of zinc glycinate and complexes, which is applied in the field of preparation of zinc glycinate complexes, and can solve problems such as unfavorable production and storage, and a large amount of crystal water

Active Publication Date: 2016-12-07
ZHONGKAI UNIV OF AGRI & ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Mainly include: metathesis method, direct coordination method, solid-phase method at room temperature, etc., but the ratio is mostly glycine: zinc sulfate heptahydrate is 2:1; there are few reports on the synthesis ratio of 1:1
Moreover, the yield of zinc glycine complex crystallized at normal temperature is higher, but the amount of crystal water contained in the synthesized product is large, which is not conducive to production and preservation, etc.

Method used

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  • Preparation method of glycine zinc complex
  • Preparation method of glycine zinc complex
  • Preparation method of glycine zinc complex

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Experimental program
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Embodiment 1

[0022] The yield of the zinc glycine complex crystallized at normal temperature is higher, but the amount of crystal water contained in the synthesized product is more, which is not conducive to production and preservation, etc. Therefore, in order to produce a higher synthetic yield, and the zinc glycine complex The amount of crystallization water contained in the product is low, which is convenient for the storage and use of the zinc glycine complex. Study crystallization at different temperatures and different feeding concentrations, and based on the yield and the amount of crystallization water, the best experimental results are obtained. Program.

[0023] 1 Experimental materials and methods

[0024] 1.1 Experimental materials and instruments

[0025] Raw material: zinc sulfate heptahydrate (ZnSO 4 ·7H 2 O); water (H 2 O); Glycine (C 2 h 5 NO 2 ); Concentrated sulfuric acid; Iron powder; Anhydrous ethanol; All reagents used were of analytical grade.

[0026] Instr...

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Abstract

The invention provides a preparation method of a glycine zinc complex. The preparation method comprises the steps of dissolving glycine and zinc sulfate heptahydrate into water, adding a small amount of iron powder and multiple drops of concentrated sulfuric acid, rotationally reacting at 70-90 DEG C, cooling to a temperature of 50-65 DEG C, carrying out crystallization and suction filtration to obtain crystalline solids, washing the crystalline solids for several times with absolute ethyl alcohol, and naturally airing, so as to obtain the glycine zinc complex. According to the preparation method, the crystallization temperature is 50-65 DEG C and is 25 DEG C higher than that of an existing method, so that the time consumed in a cooling crystallization process is shortened, and the cooling energy consumption is reduced; and meanwhile, the glycine zinc complex prepared by virtue of the preparation method is high in yield and contains a small amount of crystal water, and the subsequent drying energy consumption is low.

Description

technical field [0001] The invention relates to a preparation method of a compound, in particular to a preparation method of a zinc glycine complex. Background technique [0002] Zinc is an essential trace element for humans and animals. Zinc can improve people's sense of taste and accelerate growth and development; it can also regulate the body's immunity, prevent infection and promote wound healing. Zinc can assist in the transport of glucose on cells, and there are 2 zinc atoms in a molecule of insulin. Zinc is involved in the activity of insulin. Zinc glycine complex utilizes the active absorption of amino acids from the small intestine. Glycine and zinc are combined into a stable glycine-zinc complex in vitro, which can be absorbed as a whole without being affected by food factors. Glycine zinc complex enters the body and breaks down into glycine and zinc. Among them, the absorption of glycine and zinc is fast, the safety is good, and the bioavailability is not onl...

Claims

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Application Information

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IPC IPC(8): C07C227/18C07C229/76
CPCC07C227/18C07C229/76
Inventor 舒绪刚林羽梁月娟邱桂雄高均勇周新华
Owner ZHONGKAI UNIV OF AGRI & ENG
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