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Alkyl glycoside biological bacteriostatic agent and preparation process thereof

A technology of biological bacteriostatic agents and alkyl glycosides, which is applied in the preparation of sugar derivatives, the preparation of aminohydroxy compounds, and sugar derivatives, etc. Good and other problems, to achieve the effect of obvious bacteriostatic effect, good stability and good biodegradation performance

Pending Publication Date: 2021-11-05
太和县芮欣生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The antibacterial and antifungal materials used for leather products are mostly antibacterial and antifungal agents in other industrial fields. There are several key problems in the application of leather: 1) high toxicity, the problem of bacteria and mold growth in leather products and the used Toxicity of antibacterial and antifungal agents; 2) poor combination with leather; 3) short antibacterial and antifungal cycle

Method used

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  • Alkyl glycoside biological bacteriostatic agent and preparation process thereof
  • Alkyl glycoside biological bacteriostatic agent and preparation process thereof
  • Alkyl glycoside biological bacteriostatic agent and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Preparation aids:

[0045] Step S21: Dissolving the rosin with dichloromethane, then adding thionyl chloride, and performing a reflux reaction at 40° C. for 4 hours. After the reaction, post-processing is performed. The post-processing process is as follows: the obtained reaction solution is concentrated under reduced pressure to remove dichloromethane. and excess thionyl chloride to obtain intermediate 1;

[0046] Step S22: Mix intermediate 1 and dichloromethane, then add N,N-dimethylethanolamine and triethylamine, heat under reflux for 3 hours at a temperature of 50°C, and perform post-processing after the reaction is completed. The process of post-processing As follows: the obtained reaction solution is cooled and filtered under reduced pressure, the obtained filtrate is washed twice with 1% hydrochloric acid aqueous solution and 1% sodium hydroxide aqueous solution respectively, and the organic phase is dried with anhydrous sodium sulfate, Filter, then concentrate ...

Embodiment 2

[0051] Preparation of bacteriostatic components:

[0052] Step S11, mixing sodium acetate and glucose, adding acetic anhydride after mixing, heating to reflux, stirring and reacting for 2h, and performing post-processing after the reaction is completed. Stir at ℃ for 3.5 h, let stand, remove the upper layer liquid, and then wash with deionized water. After washing, dry at 40 ℃ to constant weight to obtain intermediate a;

[0053] Step S12, adding intermediate a and auxiliary agents into dichloromethane, then adding boron trifluoride ether, and stirring at room temperature for 24 h to obtain intermediate b;

[0054] Step S13, adding intermediate b to the triethylamine solution, stirring at room temperature for 24 hours, to obtain an antibacterial component.

[0055] Among them, the dosage ratio of sodium acetate, glucose and acetic anhydride is 10g: 12.5g: 62.5mL; the dosage ratio of intermediate a, auxiliary agent, dichloromethane and boron trifluoride ether is 3.9g: 2.1g: 50...

Embodiment 3

[0057] Preparation of Alkyl Glycoside Biostatics:

[0058] Ethyl cellulose 1%; Eudragit E100 1%; Hydroxypropyl cellulose 2%; Anhydrous ethanol 40%; Triethyl citrate 1%; Chitosan hydrochloride 1%; Fatty alcohol polyoxyethylene Ether 1%; antibacterial component 1%; solvent supplemented to 100%;

[0059] The preparation process includes the following steps:

[0060] The first step, adding ethyl cellulose into deionized water at 60°C to swell, for later use; mixing Eudragit E100, hydroxypropyl cellulose and absolute ethanol, and then adding the swollen ethyl cellulose to obtain the first mixture ;

[0061] The second step, mixing triethyl citrate, chitosan hydrochloride and fatty alcohol polyoxyethylene ether to obtain a second mixture, after mixing the first mixture and the second mixture, add the bacteriostatic component and solvent, and mix evenly , to obtain an alkyl glycoside biological bacteriostatic agent, and the solvent is purified water. The antibacterial component w...

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Abstract

The invention discloses an alkyl glycoside biological bacteriostatic agent and a preparation process thereof, and belongs to the technical field of bacteriostatic agent preparation. The preparation process of the bacteriostatic agent comprises the following steps: 1, swelling ethyl cellulose for use; mixing eudragit E100, hydroxy propyl cellulose and absolute ethyl alcohol, and then adding the swelled ethyl cellulose to obtain a first mixture; and 2, mixing triethyl citrate, chitosan hydrochloride and fatty alcohol-polyoxyethylene ether to obtain a second mixture, mixing the first mixture and the second mixture, adding the antibacterial component and the solvent, and uniformly mixing to obtain the alkyl glycoside biological bacteriostatic agent. The prepared bacteriostatic agent can form a layer of transparent protective film on the surface of a leather product under the room temperature condition, the phenomena of dissolution, expansion, edge curling and the like cannot occur after the film is formed and soaked in water, and the bacteriostatic agent is suitable for daily storage and use.

Description

technical field [0001] The invention belongs to the technical field of preparation of bacteriostatic agents, and in particular relates to an alkyl glycoside biological bacteriostatic agent and a preparation process thereof. Background technique [0002] Leather products contain a lot of nutrients such as collagen, which is the best source of nutrients for mold and bacteria. When leather products are in an environment with an ambient temperature of 25-35°C and a relative air humidity of 75-95%, mildew is easy to grow, mild mildew affects the appearance of leather products, and makes the grain surface of leather products lose their luster; The mildew spot of leather products may cause mildew on the grain surface of leather products, intestinal cracks, and significantly reduce the physical and mechanical properties of leather products, seriously affecting the sales and use performance of leather products. [0003] At present, most of the antibacterial and antifungal materials ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/16A01N25/00A01N25/34A01P1/00A01P3/00C07H1/00C07H15/04C07C213/06C07C213/08C07C213/04C07C219/12C14C11/00C09D101/28C09D5/14C09D7/63C09D7/65
CPCA01N43/16A01N25/00A01N25/34C07H1/00C07H15/04C07C213/06C07C213/08C07C213/04C14C11/00C09D101/284C09D5/14C09D7/63C09D7/65C07C2603/26C08L2205/035C07C219/12C08L1/28C08L5/08C08L71/02C08K5/11C08K5/19
Inventor 不公告发明人
Owner 太和县芮欣生物科技有限公司
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