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Nanofiber indication membrane for intelligently detecting marine fish spoilage and application thereof

A nanofiber, intelligent detection technology, applied in the field of nanomaterials, can solve the problems of complicated operation and reduced safety of intelligent indicating film.

Pending Publication Date: 2021-07-30
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention patent has the advantages of strong adsorption to gas and obvious color development, but there are disadvantages such as complicated operation and the use of more organic solvents in the preparation process, which reduces the safety of the intelligent indicator film. The invention patent proposes a solution to this problem Improvement measures, the prepared intelligent indicator membrane is easy to operate, and most of the raw materials are derived from natural substances, with high safety

Method used

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  • Nanofiber indication membrane for intelligently detecting marine fish spoilage and application thereof
  • Nanofiber indication membrane for intelligently detecting marine fish spoilage and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A nanofiber indicator film for intelligent detection of seawater fish spoilage is prepared by the following steps:

[0029] (1) Add gelatin, nano-chitin, anthocyanin and curcumin successively in the acetic acid aqueous solution of 80% in mass concentration, stir 24h under 42 ℃ of constant temperature conditions and make spinning solution, described gelatin, nano-chitin The addition amount accounts for 7.2% and 1.2% of the mass of the acetic acid aqueous solution respectively; the mass ratio of curcumin and anthocyanin is 2:8;

[0030] (2) The spinning solution is spun into a nanofiber indicator film using an electrospinning machine, wherein the receiving material is aluminum foil paper, and the parameters for spinning by the electrospinning machine are as follows:

[0031] The test temperature is 25°C, the relative humidity is 50%, the injection speed is 0.1mm / h, the distance from the spinning needle to the receiving device is 10cm, and the voltage is set to 25kv;

[0...

Embodiment 2

[0034] A nanofiber indicator film for intelligent detection of seawater fish spoilage is prepared by the following steps:

[0035] (1) Add gelatin, nano-chitin, anthocyanin and curcumin successively in the aqueous acetic acid solution whose mass concentration is 80%, stir at 42 ℃ of constant temperature conditions for 24h and make spinning solution, described gelatin, nano-chitin, The amount of pigment added accounts for 7.2%, 1.2%, and 4% of the mass of the aqueous acetic acid solution; the mass ratio of curcumin to anthocyanin is 5:5;

[0036] (2) The spinning solution is spun into a nanofiber indicator film using an electrospinning machine, wherein the receiving material is aluminum foil paper, and the parameters for spinning by the electrospinning machine are as follows:

[0037] The test temperature is 25°C, the relative humidity is 50%, the injection speed is 0.1mm / h, the distance from the spinning needle to the receiving device is 10cm, and the voltage is set to 25kv; ...

Embodiment 3

[0040] A nanofiber indicator film for intelligent detection of seawater fish spoilage is prepared by the following steps:

[0041] (1) Add gelatin, nano-chitin, anthocyanin and curcumin successively in the aqueous acetic acid solution whose mass concentration is 80%, stir at 42 ℃ of constant temperature conditions for 24h and make spinning solution, described gelatin, nano-chitin, The addition amount of pigment accounts for 7.2%, 1.2%, 4% of the acetic acid aqueous solution mass respectively; The mass ratio of described curcumin and anthocyanin is 8:2;

[0042] (2) The spinning solution is spun into a nanofiber indicator film using an electrospinning machine, wherein the receiving material is aluminum foil paper, and the parameters for spinning by the electrospinning machine are as follows:

[0043] The test temperature is 25°C, the relative humidity is 50%, the injection speed is 0.1mm / h, the distance from the spinning needle to the receiving device is 10cm, and the voltage is ...

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Abstract

The invention provides a nanofiber indication membrane for intelligently detecting marine fish spoilage and application thereof, and relates to the technical field of nanomaterials. Anthocyanidin and curcumin are used as double color changing agents, gelatin and nano chitin are combined to prepare a spinning solution, then the spinning solution is processed and formed by using an electrostatic spinning technology, and the nanofiber indication membrane is obtained. The nanofiber indication membrane has relatively high color development capability and stability, and can rapidly detect the spoilage condition of marine fish.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a nanofiber indicating membrane for intelligently detecting the spoilage of seawater fish and its application. Background technique [0002] Fresh seawater fish is tender in texture, delicious in taste, rich in protein, polyunsaturated fatty acids, minerals, trace elements and other nutritional elements, and is deeply loved by consumers at home and abroad. However, fresh seawater fish are extremely susceptible to microbial contamination during storage, processing and sales to produce alkaline gases such as volatile amines, resulting in spoilage and quality decline. Therefore how to realize the rapid detection of fish meat freshness is particularly important. [0003] At present, the detection methods for the deterioration of seawater fish mainly use large-scale detection equipment and the detection cycle is long, which cannot be used in actual life. The food freshness ind...

Claims

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Application Information

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IPC IPC(8): D01F4/00D01F1/10D01F1/06D04H1/728D01D5/00G01N21/80
CPCD01F4/00D01F1/10D01F1/103D01F1/06D04H1/728D01D5/0015D01D5/0076G01N21/80
Inventor 吴春华段孟霞黄叶群庞杰俞珊孙继帅姜海鑫赵建波
Owner FUJIAN AGRI & FORESTRY UNIV
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