Feed used lactate modified zeolite and preparing method and application thereof

A technology of modifying zeolite and lactic acid, which is applied in application, animal feed, animal feed, etc., can solve the problems of nutrient loss and insufficient antibacterial effect, and achieve the effects of improving production performance, protecting intestinal health, and improving microbial environment

Inactive Publication Date: 2012-07-18
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The antibacterial effect of natural zeolite alone is not strong enough, and lactic acid is directly added to the feed, which is easily neutralized by the alkaline components in the feed, and the digestive tract of broilers has a strong buffering effect, so it is difficult for the acidifier without protection treatment to be fully effective Reach the intestinal tract to play an acidifying role, causing loss of nutrients

Method used

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  • Feed used lactate modified zeolite and preparing method and application thereof
  • Feed used lactate modified zeolite and preparing method and application thereof
  • Feed used lactate modified zeolite and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The present invention will be further described below in conjunction with embodiment, but the present invention is not limited thereto. Embodiment 1: Preparation of lactic acid modified zeolite for feed

[0031] In order to explore the best modification conditions, single factor and orthogonal experiments were carried out, the specific steps and results are shown below; among them, the content of clinoptilolite in natural zeolite is not less than 60%.

[0032] Test 1: Single factor test

[0033] The effects of lactic acid concentration, water bath time and water bath temperature on the bacteriostatic rate of zeolite, free acidity and activity of zeolite were investigated respectively, and their influence on the bacteriostatic effect of lactic acid modified zeolite was studied.

[0034] 1. The effect of lactic acid concentration on the antibacterial effect of zeolite

[0035] Lactic acid solutions with mass percent concentrations (W / W, g / g) of 2.67%, 5.31%, 10.63%, 21....

Embodiment 2

[0046] The preparation of embodiment 2 feed lactic acid modified zeolite (1)

[0047] The lactic acid modified zeolite for feed is produced according to the following preparation steps:

[0048] (1) To the natural zeolite, add a mass percent concentration (W / W, g / g) of 21.25% lactic acid solution (i.e. in 1 g of natural zeolite) according to the mass volume ratio (W / V, g / mL) 1:10 Add 10mL of lactic acid solution with a concentration of 21.25% by mass); the content of clinoptilolite in natural zeolite is not less than 60%, and the lactic acid used is feed or food or safe industrial lactic acid products.

[0049] (2) shake or stir the mixed solution prepared in step (1) at 20°C for 4 hours, filter and wash the filter residue until neutral;

[0050] (3) After drying the washed filter residue at 100° C., crush it to 200 mesh to obtain a lactic acid-modified zeolite product. The preparation of embodiment 3 feeding lactic acid modified zeolite (2)

Embodiment 3

[0050] (3) After drying the washed filter residue at 100° C., crush it to 200 mesh to obtain a lactic acid-modified zeolite product. The preparation of embodiment 3 feeding lactic acid modified zeolite (2)

[0051] The lactic acid modified zeolite for feed is produced according to the following preparation steps:

[0052] (1) In the natural zeolite, according to the mass volume ratio (W / V, g / mL) 1: 8, add the lactic acid solution that the mass percent concentration (W / W, g / g) is 40% (that is, in 1g natural zeolite Add 8 mL of lactic acid solution with a concentration of 40% by mass); the content of clinoptilolite in natural zeolite is not less than 60%, and the lactic acid used is feed or food or safe industrial lactic acid products.

[0053] (2) After shaking or stirring the mixed solution prepared in step (1) at 40°C for 4 hours, filter and wash the filter residue until neutral;

[0054] (3) After drying the washed filter residue at 80° C., crush it to 120 mesh to obtain a...

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Abstract

The invention discloses a feed used lactate modified zeolite, which utilizes lactate and natural zeolites as raw materials and is prepared by oscillating or stirring, filtering, washing, drying and smashing. The specific steps for preparing the feed used lactate modified zeolite includes, (1), adding a lactate solution with mass percent concentration from 10% to 50% to the natural zeolites with the ratio of weight per volume (W/V) 1: (4 to 10); (2), oscillating or stirring the mixed solution prepared from step (1) at the temperature from 20 DEG C to 80 DEG C for 2 hours to 8 hours, then filtering the solution and washing the filtration residue to neutrality; (3), drying the washed filtration residue at the temperature from 65 DEG C to 105 DEG C and finally smashing the filtration residue to obtain the lactate modified zeolite. The feed used lactate modified zeolite is applied to livestock and poultry feed and can completely or partially substitute antibiotics, and can be used for preventing intestinal diseases caused by bacterial infections of escherichia coli, salmonella enterica and the like so that the microbial environment of the intestinal tract can be improved, the health of the intestinal tract can be protected and the production performance of livestock and poultry can improved.

Description

technical field [0001] The invention belongs to the field of feed, and in particular relates to a lactic acid modified zeolite for feed and a preparation method and application thereof. Background technique [0002] Common bacterial pathogenic microorganisms in livestock and poultry production include pathogenic Escherichia coli, Salmonella, and Staphylococcus aureus. When the intestinal tract of animals is threatened by bacterial pathogenic microorganisms and their toxins, the mucosal structure of the gastrointestinal tract is easily damaged, leading to the disorder of the basic physiological functions of the intestinal tract, making it easy for pathogenic microorganisms to break through the physical barrier to invade the host and cause diseases. Various intestinal bacterial diseases of livestock and poultry are usually prevented by adding antibiotics to the feed, but due to the problems of antibiotic residues and bacterial resistance, it is urgent to seek safe and efficien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16
Inventor 周岩民张婷婷王龙昌
Owner NANJING AGRICULTURAL UNIVERSITY
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