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Pectin oligogalacturonic acid zinc and preparation method and applications thereof

A technology of galacturonic acid and galactose, applied in the field of oligomeric pectin galacturonic acid zinc and its preparation, can solve the problems of difficult popularization and high cost, and achieve easy industrial production, low cost, and reduced feed consumption Effect

Inactive Publication Date: 2012-01-18
FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because compared with zinc sulfate, the cost of amino acid trace element chelate (complex) compound product is higher, it is more difficult to popularize

Method used

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  • Pectin oligogalacturonic acid zinc and preparation method and applications thereof
  • Pectin oligogalacturonic acid zinc and preparation method and applications thereof
  • Pectin oligogalacturonic acid zinc and preparation method and applications thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] 1) Take 400g NaOH and dissolve it in 10L concentration of 50% ethanol solution to obtain an ethanol solution of sodium hydroxide, cool the sodium hydroxide solution to 0-5° C. ℃) in 2kg of apple pectin (purchased from Henan Santai Food Industry Co., Ltd., the mass percent content of galacturonic acid is more than 90%) was added to the above-mentioned ethanol aqueous solution of sodium hydroxide, and after reacting for 6 hours, the Overnight (12h), the precipitate was obtained by suction filtration. Add the obtained precipitate to 4L of 50% ethanol aqueous solution, and stir electromagnetically at room temperature to obtain the precipitated ethanol aqueous solution, then use 3M HCL to adjust the pH value of the precipitated ethanol aqueous solution to 1.5, and keep the pH value constant. Stirring was continued for 40 min, and a precipitate was obtained by suction filtration. Respectively with ethanol aqueous solution of hydrochloric acid (the ethanol aqueous solution of...

Embodiment 2

[0024] 1) Weigh 300g KOH and dissolve it in 9L concentration of 40% ethanol aqueous solution to obtain an ethanol aqueous solution of potassium hydroxide, cool the potassium hydroxide ethanol aqueous solution to 0-5°C, electromagnetically stir, and ice-water bath (0-5°C ), add 2kg of citrus pectin (purchased from Sichuan Dayuan Biotechnology Industrial Co., Ltd., the mass percentage of galacturonic acid is more than 90%) to the above-mentioned aqueous ethanol solution of potassium hydroxide, react for 5h, and set at 4°C In the refrigerator overnight, the precipitate was obtained by suction filtration. The resulting precipitate was added to 4L of 40% ethanol aqueous solution, and electromagnetically stirred at room temperature to obtain the precipitated ethanol aqueous solution, and then 3M HCL was used to adjust the pH value of the precipitated ethanol aqueous solution to 2.0, under the condition of keeping the pH value constant Stirring was continued for 30 min, and the preci...

Embodiment 3

[0028] 1) Weigh 300g KOH and dissolve in 9L concentration of 60% ethanol aqueous solution to obtain potassium hydroxide ethanol aqueous solution, cool the potassium hydroxide ethanol aqueous solution to 0-5°C, electromagnetically stir, and ice-water bath (0-5°C ), add 2kg of sunflower pectin (purchased from Pu Lante Pectin Factory, Xingtang County, Shijiazhuang City, the mass percent content of galacturonic acid is more than 90%) in the ethanol aqueous solution of above-mentioned potassium hydroxide, after reacting for 8h , overnight in a refrigerator at 4°C, and a precipitate was obtained by suction filtration. Add the obtained precipitate to 4L of 60% ethanol aqueous solution, and stir electromagnetically at room temperature to obtain the precipitated ethanol aqueous solution, then use 3M HCL to adjust the pH value of the precipitated ethanol aqueous solution to 1.5, and keep the pH value constant. Stirring was continued for 50 min, and a precipitate was obtained by suction ...

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Abstract

The invention discloses pectin oligogalacturonic acid zinc and a preparation method and applications thereof. The method comprises the following steps: 1) carrying out a reaction on alkaline ethanol aqueous solution and pectin, dissolving the obtained reaction product with ethanol aqueous solution, and adjusting pH value to 0.5-2.0 to obtain an intermediate product; 2) carrying out an enzymolysis reaction on the intermediate product and endo-pectinase, and collecting an enzymolysis reaction product to obtain pectin oligogalacturonic acid; and 3) allowing aqueous solution of the pectin oligogalacturonic acid with aqueous solution of zinc salt to obtain the pectin oligogalacturonic acid copper. The pectin oligogalacturonic acid zinc can obviously improve absorption of zinc ions by cultured animals and reduce feeding quantity of antibiotics; and the preparation method is simple and convenient to process and is easy to be industrialized, and has important practical value in the feed additive field of the cultured animals.

Description

technical field [0001] The invention belongs to the field of feed additives, in particular to zinc oligomeric pectin galacturonate and its preparation method and application. Background technique [0002] In recent years, in livestock production, in order to one-sidedly pursue productivity, high doses of inorganic metal trace elements are added to feed. Although high doses of inorganic trace elements can indeed improve the production performance of livestock and poultry and prevent and treat certain intestinal diseases, due to the poor digestion and absorption of inorganic mineral elements by livestock and the low utilization rate, the impact on environmental pollution is increasing. , the harm caused by the development of animal husbandry to environmental pollution has aroused widespread concern at home and abroad. In my country, about 100,000 tons of minerals that are not used by animals are excreted with feces and urine every year, polluting the environment and becoming ...

Claims

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Application Information

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IPC IPC(8): C12P19/14A23K1/16A23K20/163A23K20/20A23K50/75
Inventor 石波梁平
Owner FEED RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES
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