Method for preparing tannin chelate zinc feed additive

A technology of chelating zinc and tannin, which is applied in animal feed, animal feed, additional food elements, etc., can solve the problems of affecting the growth and development of the body's immune organs, affecting the growth and development of animals in the later stage, and reducing the body's immunity, etc., and achieves low cost , high yield and low production cost

Inactive Publication Date: 2011-06-29
INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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AI Technical Summary

Problems solved by technology

But high-zinc diet seriously affects the later stage growth and development of animals, affects the growth and development of the body's immune organs, inhibits the cascade amplification of the content of immunoglobulin and complement, and reduces the body's immunity (Chen Liang, long-term exposure of high-zinc diet to weaning Immunopathological study of pigle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] a. the plant tannin weight is 15g (purchase from the market, hydrolyzed tannin content ≥ 99%), water 100mL is mixed in the 500mL beaker, adjust pH value with 3mol / L sodium hydroxide solution to be 4.5, in water bath temperature 60 °C for 15 minutes to obtain a tannin solution.

[0033] b. Put 16 g of zinc acetate and 50 mL of water in a beaker, and heat at a water bath temperature of 60° C. for 15 minutes to obtain a zinc acetate solution.

[0034] c. Add the zinc acetate solution of b to the tannin solution obtained in step a, stir while adding, and adjust the pH value to 4.5 with 3mol / L sodium hydroxide solution, and react for 1 hour at a water bath temperature of 60°C to obtain tannin Chelated zinc was precipitated, filtered, and dried to obtain 19.8 g of the product.

[0035] Tannin chelated zinc yield=(mass of tannin chelated zinc / (tannin mass×2.2788))×100%=57.9%.

Embodiment 2

[0037] a. Mix 20 g of plant tannin and 120 mL of water in a 500 mL beaker, adjust the pH to 5 with 3 mol of sodium hydroxide solution, and heat at a water bath temperature of 65° C. for 15 minutes to obtain a tannin solution.

[0038] b. Put 22 g of zinc acetate and 60 mL of water in a beaker, and heat at a water bath temperature of 65° C. for 15 minutes to obtain a zinc acetate solution.

[0039] c. Add the zinc acetate solution of b to the tannin solution obtained in step a, stir while adding, and adjust the pH value to 5.0 with 3mol / L sodium hydroxide solution, and react for 1 hour at a water bath temperature of 65°C to obtain tannin The chelated zinc was precipitated, filtered, and dried to obtain 26.6 g of the product.

[0040] Tannin chelated zinc yield was 58.3%.

Embodiment 3

[0042] a. Mix 22 g of vegetable tannin and 130 mL of water in a 500 mL beaker, adjust the pH to 5.5 with 3 mol of sodium hydroxide solution, and heat at a water bath temperature of 70° C. for 15 minutes to obtain a tannin solution.

[0043] b. Put 24 g of zinc acetate and 70 mL of water in a beaker, and heat at a water bath temperature of 70° C. for 15 minutes to obtain a zinc acetate solution.

[0044] c. Add the zinc acetate solution of b to the tannin solution obtained in step a, stir while adding, and adjust the pH value to 5.5 with 3mol / L sodium hydroxide solution, and react for 1 hour at a water bath temperature of 70°C to obtain tannin Chelated zinc was precipitated, filtered, and dried to obtain 29.2 g of the product.

[0045] Tannin chelated zinc yield was 58.3%.

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Abstract

The invention aims to provide a method for preparing tannin chelate zinc feed additive. The method has simple production process and low cost, and the feed additive has remarkable effect of preventing and treating diarrhea of piglets. The preparation method mainly comprises the following steps of: preparing tannin solution, preparing zinc acetate solution, and mixing the tannin solution and the zinc acetate solution to prepare a tannin chelate zinc product. The yield of the tannin chelate zinc prepared by the method is high and is about 57.9 to 58.9 percent, wherein the chelate zinc reaches 24 percent. Besides the intestine astringing and diarrhea relieving effects of tannin, the prepared tannin chelate zinc can meet the requirement of animals on trace element zinc. Therefore, the feed additive can effectively prevent and treat diarrhea of the piglets and promote the growth of animals.

Description

technical field [0001] The invention relates to a preparation method of organic polyphenol chelated zinc, in particular to a preparation method of feed additive tannin chelated zinc. Background technique [0002] Tannin is a polyphenol derivative contained in plants that can tan raw hides into leather, so it is also called plant tannin, and it is a class of substances in the phenolic polymers of plant secondary metabolites. Molecular weight of tannin: 1701.20, molecular formula: C 76 h 52 o 46 , a complex compound belonging to polyphenols. Tannin is widely present in various organ structures of plants, and the content in many coniferous barks reaches 20-40%, especially the content of tannin in gallnut is as high as 60-80% (the proportion of tannin in three important tannin plant vegetative organs Distribution, "Journal of Tropical and Subtropical Botany", 1997 02), is a natural renewable resource with wide distribution, many varieties and large quantities (Chen Jiahong. C...

Claims

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Application Information

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IPC IPC(8): A23K1/18A23K1/16A23K20/121A23K20/20
Inventor 吴信印遇龙
Owner INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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