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Modified sodium humate product, preparation method and application thereof

A sodium humate modification technology, which is applied in application, animal feed, additional food elements, etc., can solve the problems of reducing the yield of sodium humate, affecting the product effect, and humic acid sedimentation, so as to achieve no chemical reagent residue and improve Intestinal health effect, effect of reducing acidity

Active Publication Date: 2018-09-28
QILU UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Clinical trials have shown that adding 0.5% traditional sodium humate to fattening pig feed can cause severe diarrhea in pigs
If the pH value is controlled by simply reducing sodium hydroxide, it will not only reduce the yield of sodium humate, but also the humic acid will settle due to the low pH value, affecting the product effect

Method used

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  • Modified sodium humate product, preparation method and application thereof
  • Modified sodium humate product, preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Example 1: A modified sodium humate product, sodium humate is enzymolyzed by tannin ester acyl hydrolase (Nanning Dongheng Huadao Biotechnology Co., Ltd.) and laccase (Xiasheng Industrial Group), and tannin ester The activity of acyl hydrolase is 500u / g, the activity of laccase is 10000 u / g, the pH value of modified sodium humate is 7.0-8.0, the content of phenolic hydroxyl group is 21-30%, and the content of phenolic acid group is 15-20% .

[0029] The preparation method of above-mentioned modified sodium humate product comprises the steps:

[0030] (1) Mix 10 parts of humic acid ore powder, 1 part of sodium hydroxide and 10 parts of distilled water in a stirred reactor, and put in steam to react for 120 minutes to obtain crude sodium humate;

[0031] (2) Centrifuge the crude sodium humate at 2000 rpm for 20 minutes to obtain a centrifugate containing soluble sodium humate, and transfer the centrifugate to a 1-ton stirred reactor;

[0032] (3) Adjust the content of s...

Embodiment 2

[0035] Embodiment 2: The similarities between this embodiment and Embodiment 1 will not be repeated, the difference is: adjust the content of sodium humate in the centrifugal liquid in the stirred reactor to 45%; according to the ratio of 0.17% and 0.03% by weight of sodium humate Add tannic acid acyl hydrolase and laccase for enzymatic hydrolysis, the reaction temperature is 51° C., and the reaction is performed at 180 rpm for 90 minutes to obtain a modified sodium humate reaction solution. The modified sodium humate reaction solution was dried to obtain a modified sodium humate product, wherein the pH value was 7.2, the phenolic hydroxyl content was 29.5%, and the phenolic acid group content was 18.3%.

Embodiment 3

[0036] Embodiment 3: The similarities between this embodiment and Embodiment 1 will not be repeated, the difference is: adjust the content of sodium humate in the centrifugal liquid in the reactor to 50%; add according to the ratio of 0.25% and 0.05% by weight of sodium humate Tannic acid acyl hydrolase and laccase enzymatic hydrolysis, the reaction temperature is 40 ° C, 150 rpm for 120 minutes to obtain a modified sodium humate reaction solution. The modified sodium humate reaction solution was dried to obtain a modified sodium humate product, wherein the pH value of the product was 7.6, the content of phenolic hydroxyl group was 22.3%, and the content of phenolic acid group was 17.1%.

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Abstract

The present invention discloses a modified sodium humate product, a preparation method and an application thereof. The preparation method comprises the following steps: (1) humic acid mineral powder reacts with sodium hydroxide to form a crude sodium humate product; (2) the sodium humate is centrifuged to obtain soluble sodium humate; and (3) ester bonds of phenolic and carboxy bonds, etc. in thesodium humate are treated by enzymolysis of tannyl ester acyl hydrolase and laccase to form phenolic hydroxyl groups and phenolic acid groups to obtain the modified sodium humate. The modified sodiumhumate product has a pH value of 7.0-8.0, a phenolic hydroxyl group content of 21-30%, and a phenolic acid group content of 15-20%. The sodium humate product is added to feed fattening pigs accordingto 5 kg per ton of the feed. The phenolic hydroxyl groups and phenolic acid groups are functional bases of the sodium humate for preventing micro-organisms, promoting astringency and stopping diarrhea. The phenolic hydroxyl groups and phenolic acid groups in the modified sodium humate are released; the proportion of the active groups in the sodium humate is greatly increased; and repair and improvement of intestinal tracts of livestock and poultry by the product are improved.

Description

technical field [0001] The invention relates to a modified sodium humate product and its preparation method and application, in particular to a product with humic acid mineral powder as raw material, which is enzymolyzed by tannin ester acyl hydrolase and laccase to obtain high phenolic hydroxyl and phenolic carboxyl content , Modified sodium humate products with low pH value. Background technique [0002] Sodium humate has the characteristics of antidiarrheal, astringent, and promoting intestinal health of livestock and poultry. Zinc oxide is mainly added to the feed of fattening pigs to prevent diarrhea and loose stools. Since zinc oxide will seriously pollute the environment after being excreted with feces, it is imminent to ban zinc oxide in pig feed. Sodium humate has been widely used in the field of industry and planting, but due to the lack of research on it, the homogeneity of the product is serious, and no in-depth research has been carried out based on the specif...

Claims

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Application Information

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IPC IPC(8): A23K20/137A23K10/14A23K50/30
CPCA23K10/14A23K20/137A23K50/30
Inventor 张杰朱小玲丛晓燕王黎文位宾宋炳红张聪卢丹陈清双李雪王玉豪
Owner QILU UNIV OF TECH