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Preparation method of chitosan synergistic antibacterial liquid

The technology of chitosan and antibacterial liquid is applied in the field of preparation of chitosan synergistic antibacterial liquid, which can solve the problems of low antibacterial ability and low water solubility, and achieve excellent antibacterial performance and improve antibacterial ability.

Inactive Publication Date: 2017-05-31
QUANZHOU YALIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, chitosan has low antibacterial ability due to its strong molecular chain rigidity and low water solubility.

Method used

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  • Preparation method of chitosan synergistic antibacterial liquid

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preparation example Construction

[0020] A preparation method of chitosan synergistic antibacterial liquid, comprising the following steps:

[0021] (1) After compounding the mixture of 0.1g~20g high molecular weight chitosan and low molecular weight chitosan in proportion, dissolve it in 800mL~1000mL acetic acid solution, stir to form a transparent and uniform mixed solution, the high molecular weight chitosan The mass dosage ratio of polysaccharide to the low molecular weight chitosan is 3:1~10:1;

[0022] (2) Dissolve the compound of malic acid and sodium malate in distilled water in proportion, stir to form a complex aqueous solution, and the molar ratio of malic acid and sodium malate in the compound of malic acid and sodium malate is 5 : 1 to 5: 4, the mass dosage ratio of the compound of the malic acid and sodium malate to the distilled water is 1: 1000 to 3: 1000;

[0023] (3) Slowly add the complex aqueous solution obtained in step (2) dropwise into the mixed solution obtained in step (1), and stir i...

Embodiment 1

[0029] One, the preparation of chitosan synergistic antibacterial liquid

[0030] (1) After compounding the mixture of 2.5g high molecular weight chitosan (molecular weight is 30kDa) and low molecular weight chitosan (molecular weight is 5kDa) in proportion, dissolve in 1000ml, 1.5% acetic acid solution, stir to form transparent and uniform Mixed solution, wherein, the mass dosage ratio of high molecular weight chitosan and low molecular weight chitosan is 5: 1;

[0031] (2) Dissolve 1 g of the compound of malic acid and sodium malate in 1000 mL of distilled water in proportion, and stir evenly to form a complex aqueous solution, wherein the molar ratio of malic acid and sodium malate in the compound of malic acid and sodium malate is 5:1;

[0032] (3) Slowly drop the complex aqueous solution obtained in step (2) into the mixed solution obtained in step (1), and stir for 1 hour in a water bath at 50° C. to obtain the chitosan synergistic antibacterial liquid.

[0033] 2. Ant...

Embodiment 2

[0041] (1) After compounding the mixture of 5g high molecular weight chitosan (molecular weight is 30kDa) and low molecular weight chitosan (molecular weight is 5kDa) in proportion, dissolve in 1000ml, 1.5% acetic acid solution, stir to form transparent and uniform Mixed solution, the mass dosage ratio of high molecular weight chitosan and low molecular weight chitosan is 3: 1;

[0042] (2) The compound of 3g malic acid and sodium malate is dissolved in 1000mL distilled water in proportion, stirs to form complex aqueous solution, the molar ratio of malic acid and sodium malate in the compound of malic acid and sodium malate is 5 : 3;

[0043] (3) Slowly add the complex aqueous solution obtained in step (2) dropwise into the mixed solution obtained in step (1), and stir in a water bath at 55° C. for 3 hours to obtain chitosan synergistic antibacterial liquid.

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Abstract

The invention discloses a preparation method of chitosan synergistic antibacterial liquid, and the preparation method of chitosan synergistic antibacterial liquid comprises the following steps: first, compounding chitosan with a high molecular weight and chitosan with a low molecular weight in the ratio of 3: 1 to 10: 1, dissolving the chitosan with the high molecular weight and the chitosan with the low molecular weight in an acetic acid solution, adding a malic acid and sodium malate compound water solution, and stirring for 1-5h in water bath at 50 to 60 DEG C to obtain the chitosan synergistic antibacterial liquid. The preparation method is a new method to improve the antibacterial ability of the chitosan, the prepared chitosan synergistic antibacterial liquid has excellent antibacterial properties, can be widely used in cleaning supplies, fungicides and food preservation and other fields.

Description

technical field [0001] The invention relates to the technical field of antibacterial care, in particular to a preparation method of chitosan synergistic antibacterial liquid. Background technique [0002] Chitosan is the product of deacetylation of chitin, and it is the most basic and important derivative of chitin. Chitin, also known as chitin, chitin, chemical name (1,4)-2-acetamide-2-deoxy-β-D-glucan, mainly exists in the shell of shrimp, crab, pupa and insects And in the cell walls of fungi and algae, the dry shells of arthropods contain about 20-50% chitin. There are three structures of chitin in nature: α-type, β-type and Y-type, among which the most common and common one is α-type. The annual biosynthesis of chitin on the earth is billions of tons, and it is a natural polymer compound whose output is second only to cellulose. [0003] In the pharmaceutical industry, surgical sutures made of chitosan have good mechanical strength, can be stored for a long time, can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01N37/36A01P1/00
CPCA01N43/16A01N37/36A01N2300/00
Inventor 陈江枫庄跃林吴亚池黄程勇
Owner QUANZHOU YALIN NEW MATERIAL TECH
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