Preparation method and application of low-molecular weight seaweed polysaccharide trace element chelate

A technology of seaweed polysaccharides and trace elements, which is applied in the fields of application, animal feed, animal feed, etc., can solve the problems of difficult promotion and application, waste of resources, and a large amount of waste residue, and achieve the goals of improving bioavailability, reducing emissions, and reducing additives Effect

Active Publication Date: 2011-04-06
北京资源亚太饲料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation process disclosed in this patent only uses the acidic polysaccharides in seaweed, which wastes resources, so the product co

Method used

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  • Preparation method and application of low-molecular weight seaweed polysaccharide trace element chelate
  • Preparation method and application of low-molecular weight seaweed polysaccharide trace element chelate

Examples

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Embodiment 1

[0012] Embodiment 1 prepares low-molecular seaweed polysaccharide chelated copper feed additive

[0013] Weigh 10Kg of dried brown algae, pulverize it, add it into 80L of water according to the ratio of material to liquid 1:8, stir evenly, add 0.5Kg of compound enzyme preparation (protease, dextranase), pH5, react at 45°C for 8 hours, 105 ℃ inactivation for 30min. Add 0.5M sulfuric acid solution, react at 90°C for 1.5 hours, neutralize with 1.5N NaOH solution to pH7, filter with a ceramic microfiltration membrane with a cut-off molecular weight of 50,000Da, remove macromolecular polysaccharides with a molecular weight greater than 50,000Da, and then filter with a cut-off molecular weight Concentrate and desalt for a 1000Da ultrafiltration membrane to obtain the desired low molecular weight seaweed polysaccharide solution.

[0014] Add 0.5M copper sulfate solution to the above-mentioned low-molecular-weight seaweed polysaccharide solution at 50°C under stirring conditions, rea...

Embodiment 2

[0016] Embodiment 2 prepares low-molecular seaweed polysaccharide chelated zinc feed additive

[0017] Weigh 10Kg of dry red algae, pulverize it, add it into 100L of water according to the ratio of material to liquid 1:10, stir evenly, add 1Kg of compound enzyme preparation (protease, dextranase, deesterase,), pH6, 45 React at ℃ for 7 hours, inactivate at 105℃ for 30 minutes. Add 1M sulfuric acid solution, react at 80°C for 2 hours, neutralize with 2N NaOH solution to pH 6, filter with a ceramic microfiltration membrane with a cut-off molecular weight of 50,000Da, remove macromolecular polysaccharides with a molecular weight greater than 50,000Da, and then filter with a cut-off molecular weight of 1000Da The ultrafiltration membrane is used for concentration and desalination to obtain the desired low molecular weight seaweed polysaccharide solution.

[0018] Add 1.0M zinc sulfate solution to the above low-molecular-weight seaweed polysaccharide solution at 50°C under stirring...

Embodiment 3

[0019] Embodiment 3 prepares low-molecular seaweed polysaccharide chelated ferrous feed additive

[0020] Weigh 10Kg of dry cyanobacteria, crush it, add it into 90L of water according to the ratio of material to liquid 1:9, stir evenly, add 0.8Kg of compound enzyme preparation (protease, dextranase), pH 5.5, react at 45°C 6 hours, inactivation at 105°C for 30 minutes. Add 0.6M sulfuric acid solution, react at 80°C for 1 hour, neutralize to pH 6 with 1N NaOH solution, filter with a ceramic microfiltration membrane with a cut-off molecular weight of 50,000 Da, remove macromolecular polysaccharides with a molecular weight greater than 50,000 Da, and then filter with a cut-off molecular weight of 50,000 Da. A 1000Da ultrafiltration membrane is used for concentration and desalination to obtain the required low molecular weight seaweed polysaccharide solution.

[0021] Add 0.2M ferrous chloride solution to the above low-molecular-weight seaweed polysaccharide solution at 60°C with ...

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Abstract

The invention relates to a preparation method and application of a low-molecular weight seaweed polysaccharide trace element chelate. The preparation method comprises the following steps: using seaweeds which abound in ocean and are low in price as raw materials, carrying out molecular modification on the raw seaweed materials by means of biological enzymes, and carrying out microfiltration and ultrafiltration to obtain a seaweed polysaccharide with a required molecular weight, wherein the obtained seaweed polysaccharide contains all varieties of polysaccharides contained in seaweeds; and enabling the seaweed polysaccharide and trace element metal ions to be subject to a chelation reaction so as to generate the low-molecular weight seaweed polysaccharide trace element chelate. The prepared new organic trace element product has the advantage that the product cost is greatly lowered. The filtrate generated in the preparation process can be used as the solvent for recycled use, and the invention can ensure that no poisonous waste is produced in the production process. The product can be used as a feed additive for various animals, the amount of the added trace elements can be decreased by more than 50%, and the amount of metal elements discharged in animal wastes can be decreased by more than 50%. By using the product, the growth performance of animals can completely attain or surpass the effect brought by adding inorganic trace elements of a large proportion. Thus, the culturing cost can be lowered.

Description

Technical field [0001] The invention uses marine algae plants as raw materials to prepare low-molecular-weight seaweed polysaccharide trace element chelates, and belongs to the technical field of preparation methods and application of organic trace element feed additives. Background technique [0002] The harm caused by the development of animal husbandry and aquaculture to environmental pollution has aroused widespread concern. Especially the high-dose inorganic trace metals used in the compound feed, due to the low biological utilization rate in the animal body, except for a small part used by the animals, most of them are discharged into the external environment with the feces, causing pollution to the environment The impact is getting bigger and bigger, which has caused great damage to the ecological environment, brought serious hidden dangers to human health, and is also a great waste of non-renewable mineral resources. Therefore, people began to seek the application o...

Claims

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Application Information

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IPC IPC(8): A23K1/14A23K1/16A23K10/14A23K10/30
Inventor 刘钧贻莫少华尹佩辉罗珺谢春元
Owner 北京资源亚太饲料科技有限公司
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