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Preparation method of iodated chitosan oligosaccharide seaweed bio-fertilizer

A technology of iodized chitosan oligosaccharide and biological fertilizer, which is applied in fertilizer mixture, fertilization device, application and other directions to achieve the effect of lasting bactericidal power, strong iodization and penetration of animal and plant cells, and prevention of viral damage

Inactive Publication Date: 2013-09-18
青岛海大生物集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, the application of chitosan and biological iodine is mainly concentrated in the medical and health and food industries, and they are all used independently. Based on chitosan oligosaccharides, chelating seaweed active ingredients to prepare organic and environmentally friendly bio-fertilizers has not been reported at home and abroad.

Method used

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  • Preparation method of iodated chitosan oligosaccharide seaweed bio-fertilizer
  • Preparation method of iodated chitosan oligosaccharide seaweed bio-fertilizer
  • Preparation method of iodated chitosan oligosaccharide seaweed bio-fertilizer

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Embodiment 1

[0042] The main components of the invention include iodized chitosan oligosaccharide, seaweed extract and trace elements. The iodized chitosan oligosaccharide described in the present invention is prepared by enzymatically hydrolyzing chitosan with a non-specific compound enzyme and then iodination. In order to improve the biological activity of the seaweed extract, the present invention conducts research on various seaweed raw materials such as water extraction method, acid method, alkali method, microwave method and enzymatic method and cross-research on the extracted active components. Functional tests such as antibacterial and growth promotion, explore the appropriate extraction concentration and degradation degree of active ingredients for each method, and finally screen out the best extraction and degradation methods that can obtain antibacterial and growth promotion ingredients from different seaweed raw materials.

[0043] Preparation method: (1) Chitosan is pulverized...

Embodiment 2

[0047]In order to further improve the effect of the product of the present invention, the step of vacuum concentration is added on the basis of Example 1 to prepare high-concentration iodinated chitosan oligosaccharide seaweed biological fertilizer.

[0048] Preparation method: (1) Utilize the chitosan oligosaccharide solution prepared in Example 1, and concentrate through an ultrafiltration membrane.

[0049] (2) Utilize the iodized chitosan oligosaccharide solution prepared in Example 1.

Embodiment 3

[0052] In order to improve the shelf-life of the product of the present invention and reduce transportation costs, spray drying is carried out on the basis of Example 2 to prepare powdered iodinated chitosan oligosaccharide seaweed biological fertilizer.

[0053] Preparation method: (1) Utilize the concentrated iodized chitosan oligosaccharide seaweed biological fertilizer prepared in Example 2.

[0054] (2) The concentrated iodized chitosan oligosaccharide seaweed biological fertilizer in the above steps is dried by a spray dryer, the air inlet temperature is 180°C, and the air outlet temperature is 70°C, and is collected by a cyclone collector to obtain iodized chitosan oligosaccharide Seaweed Bio Fertilizer.

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Abstract

The invention relates to a preparation method of an iodated chitosan oligosaccharide seaweed bio-fertilizer. The preparation method comprises the following steps of: (1) carrying out enzymatic hydrolysis reaction on chitosan, namely, shearing and crushing chitosan, and carrying out enzymatic hydrolysis reaction by using non-special composite enzyme so as to obtain a chitosan oligosaccharide solution with a molecular polymerization degree of 4-8; (2) carrying out iodination reaction on the chitosan oligosaccharide, namely, adding a potassium iodide solution into the obtained chitosan oligosaccharide solution in a certain speed, so as to carry out the iodination reaction on the chitosan oligosaccharide and obtain an iodated chitosan oligosaccharide solution; and (3) carrying out chelation reaction on a seaweed extract, namely, taking the seaweed extract which is prepared by using an enzymatic hydrolysis method, carrying out chelation reaction on the seaweed extract and the iodated chitosan oligosaccharide solution according to a certain ratio, and compounding microelements of certain concentration, and finally obtaining the iodated chitosan oligosaccharide seaweed bio-fertilizer. The iodated chitosan oligosaccharide seaweed bio-fertilizer prepared by using the method has the remarkable functions of plant growth promoting, production increase, disease-resistance and health care, also has the strong and lasting sterilization function, is free of residue and pollution, and is a completely environmental-friendly bio-fertilizer that the medicine and the fertilizer are combined together.

Description

technical field [0001] The invention relates to a preparation method of iodized chitosan oligosaccharide seaweed biological fertilizer, which is a green, environment-friendly and high-efficiency biological fertilizer method prepared by enzymolysis and chelation technology. Background technique [0002] In the process of agricultural development in our country, the long-term application of chemical fertilizers and pesticides has damaged the soil and deteriorated the ecological environment, which has brought great hidden dangers to the sustainable development of agriculture. In February 2006, the State Council issued the "National Medium and Long-Term Science and Technology Development Plan (2006-2020)" (hereinafter referred to as the "Outline"), pointing out that "focus on the development of key technologies for the development of environmentally friendly fertilizers and pesticides, special compound slow-release , controlled-release fertilizers and fertilization technology an...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 刁红霞单俊伟宋海妹乔来艳张术聪董书阁王海华
Owner 青岛海大生物集团股份有限公司
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