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Fiber membrane capable of detecting and adsorbing nicotine and preparation method of fiber membrane

A fiber membrane and nicotine technology, which is applied in the field of detection and adsorption of nicotine fiber membranes and its preparation, can solve the problems that the research has not been in-depth, and achieve high adsorption effect, low toxicity, and high-efficiency detection effect

Inactive Publication Date: 2017-09-08
CHENGDU ZHIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research in this area has not been in-depth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Use a fine pulverizer to crush the salamander skin, add water, control the mass fraction to 10%, put it in a microwave oven, and process it at a power of 450W for 1.0 minute; filter it dry, and add hydrogen peroxide with a mass volume ratio of 2% Aqueous solution, let stand for 30 minutes, wash with water afterwards, filter dry;

[0032] (2) Add 1.0mol / L hydrochloric acid solution, under the assistance of ultrasonic waves, treat for 10-12 minutes, wash with water, and filter dry;

[0033] (3) Add water to the result of step (2), control the mass fraction to 5%, add 5.00 NFU / mg pepsin, 2.50 NFU / mg papain and 3.00 NFU / mg bromelain, and react with gentle stirring at 35°C 2.5 hours; at 100°C, inactivate for 10 minutes;

[0034] (4) Place step (3) at -70°C, pre-freeze for 10 minutes, then vacuum freeze-dry, and then pulverize;

[0035] (5) Dissolve the product obtained in step (4) in acetic acid to prepare a solution with a concentration of 0.12 g / ml, and add Tween-80 ...

Embodiment 2

[0039] (1) Use a fine grinder to crush the salamander skin, add water, control the mass fraction to 8%, place it in a microwave oven, and process it at a power of 450W for 0.5 minutes; filter it dry, and add hydrogen peroxide with a mass volume ratio of 2% Aqueous solution, let stand for 30 minutes, wash with water afterwards, filter dry;

[0040] (2) Add 1.0mol / L hydrochloric acid solution, under the assistance of ultrasonic waves, treat for 10-12 minutes, wash with water, and filter dry;

[0041] (3) Add water to the result of step (2), control the mass fraction to 6%, add 6.00 NFU / mg pepsin, 2.00 NFU / mg papain and 3.50 NFU / mg bromelain, and react with gentle stirring at 30°C 3.0 hours; at 100°C, inactivate for 10 minutes;

[0042] (4) Place step (3) at -70°C, pre-freeze for 10 minutes, then vacuum freeze-dry, and then pulverize;

[0043] (5) Dissolve the product obtained in step (4) in acetic acid to prepare a solution with a concentration of 0.15 g / ml, and add Tween-80 w...

Embodiment 3

[0047] (1) Use a fine pulverizer to crush the salamander skin, add water, control the mass fraction to 9%, put it in a microwave oven, and process it at a power of 500 W for 1.0 minute; filter it dry, and add 2% mass-volume ratio Aqueous solution of hydrogen peroxide, let it stand for 30 minutes, then wash with water and filter dry;

[0048] (2) Add 1.0mol / L hydrochloric acid solution, under the assistance of ultrasonic waves, treat for 10-12 minutes, wash with water, and filter dry;

[0049] (3) Add water to the result of step (2), control the mass fraction to 5.5%, add 5.50 NFU / mg pepsin, 2.20 NFU / mg papain and 3.30 NFU / mg bromelain, and react with gentle stirring at 35°C 3.0 hours; at 100°C, inactivate for 10 minutes;

[0050] (4) Place step (3) at -70°C, pre-freeze for 10 minutes, then vacuum freeze-dry, and then pulverize;

[0051] (5) Dissolve the product obtained in step (4) in acetic acid to prepare a solution with a concentration of 0.13 g / ml, and add Tween-80 with ...

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PUM

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Abstract

The invention belongs to the field of functional fiber membrane preparation, and particularly relates to a preparation method of a salamander skin collagen fiber membrane capable of efficiently detecting and adsorbing nicotine. By exploring a salamander skin enzymolysis technology and fiber membrane preparation conditions are explored, the salamander skin collagen fiber membrane capable of efficiently detecting the nicotine and efficiently adsorbing the nicotine is obtained. The preparation method has the advantages that the salamander skin is effectively used as a collagen preparation source, and the salamander skin collagen fiber membrane is obtained; the fiber membrane has an efficient detecting effect on the nicotine and capable of being used for preparing a corresponding nicotine sensor; the fiber membrane further has a high adsorption effect on the nicotine and capable of being used as a nicotine adsorbing material; a spinning solution in use is low in toxicity, the obtained fiber membrane can be safely used as a cigarette-end filter tip material after being subjected to volatile treatment through a common solvent.

Description

technical field [0001] The invention belongs to the field of preparation of functional fiber membranes, and in particular relates to a fiber membrane for detecting and absorbing nicotine and a preparation method thereof. Background technique [0002] Collagen is a structural protein of the extracellular matrix, which contains one or several triple-helical regions composed of α-chains, and is often used in food, chemical, medical, biosynthesis and other fields. [0003] Generally speaking, salamander skins are often discarded as waste, causing a certain amount of waste and environmental pollution. At present, the extraction of collagen from salamander skin is mainly enzymatic hydrolysis and thermal extraction. Thermal extraction generally needs to be operated under pressure, and the processing time is long. The relative molecular mass distribution of the obtained product is wide, and it is difficult to obtain the required collagen. Although enzymatic extraction has certain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/30D01F4/00D01F1/10
CPCD04H1/728D01F1/10D01F4/00D04H1/30
Inventor 向桂香
Owner CHENGDU ZHIA TECH CO LTD
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