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Anthocyanin composite nanofiber membrane and preparation method thereof

A composite nanofiber and nanofiber membrane technology, applied in the field of food processing, can solve the problems of extensive size distribution, toxicity and efficacy, poor uniformity, etc., and achieve the effects of stable biological activity, good environmental protection, and improved release uniformity.

Inactive Publication Date: 2017-12-08
WUHAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the products loaded with active substances prepared by the current microencapsulation technology have a rough size distribution and poor uniformity, and most of them are micron-sized particles, which are prone to drug "burst release" effects in practical applications, resulting in unnecessary toxicity and waste of efficacy

Method used

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  • Anthocyanin composite nanofiber membrane and preparation method thereof
  • Anthocyanin composite nanofiber membrane and preparation method thereof
  • Anthocyanin composite nanofiber membrane and preparation method thereof

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preparation example Construction

[0038] The present invention also proposes a preparation method of anthocyanin composite nanofiber membrane, please refer to figure 1 , the preparation method of the anthocyanin composite nanofiber film comprises the following steps:

[0039] Step S10, dissolving cellulose acetate to form a cellulose acetate solution;

[0040] Optionally, step S10 includes: stirring a mixture of cellulose acetate and an organic solvent by magnetic force to form a cellulose acetate solution, wherein the organic solvent includes acetone, N-N-dimethylacetamide and anhydrous methanol, wherein the The volume fractions of the acetone, N-N-dimethylacetamide and anhydrous methanol are 30-40%, 30-40% and 30-40% respectively.

[0041] Optionally, the mass of the solvent is 4-8 times that of the cellulose acetate.

[0042] The cellulose acetate is added into a container containing an organic solvent to form a mixture of the cellulose acetate and the organic solvent, and then a cellulose acetate solutio...

Embodiment 1

[0060] (1) 1.44g cellulose acetate powder is added in the screw bottle that 9mL solvent (the volume fraction of acetone, DMAc and anhydrous methanol are respectively 35%, 35% and 30%) is housed, stir 2h to Cellulose acetate is completely dissolved to obtain spinning stock solution, wherein the rotating speed of magnetic stirring is 300rpm, and the temperature of magnetic stirring is normal temperature;

[0061] (2) Inject the spinning stock solution into the syringe, control the horizontal distance between the syringe needle and the receiving roller to be 15cm, and prepare the nanofiber membrane by high-voltage electrospinning, wherein the applied voltage of the high-voltage electrospinning is 20kV, and the solution The flow rate is 1.0mL / h;

[0062] (3) The nanofiber membrane was placed in a fume hood at room temperature and protected from light for 24 hours to obtain the cellulose acetate nanofiber membrane.

Embodiment 2

[0064] (1) 1.44g of cellulose acetate powder was added to a screw bottle containing 9mL of solvent (volume fractions of acetone, DMAc and anhydrous methanol were 35%, 35% and 30%, respectively), and stirred for 2h with a magnetic stirrer, Dissolve completely to cellulose acetate, obtain cellulose acetate solution, wherein the rotating speed of magnetic stirring is 300rpm, and the temperature of magnetic stirring is normal temperature;

[0065] (2) Add 43.2 mg of anthocyanin powder to the cellulose acetate solution, and stir for 50 minutes through a magnetic stirrer in the dark until the anthocyanins are completely dissolved to obtain a uniform spinning stock solution, wherein the magnetic stirring speed is 300 rpm, and the magnetic stirring The temperature is normal temperature;

[0066] (3) Inject the spinning stock solution into the syringe, control the horizontal distance between the syringe needle and the receiving roller to be 15cm, and prepare the nanofiber membrane by h...

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Abstract

The invention discloses an anthocyanin composite nanofiber membrane and a preparation method thereof. The preparation method of the anthocyanin composite nanofiber membrane comprises steps as follows: a cellulose acetate solution is formed by dissolving cellulose acetate; anthocyanin is added to the cellulose acetate solution and stirred to form a spinning solution; the spinning solution is injected into a spinning device and subjected to high-pressure electrospinning, and the anthocyanin composite nanofiber membrane is obtained. With cellulose acetate with good degradability and biocompatibility as a matrix of the anthocyanin composite nanofiber membrane, the nanofiber membrane is prepared from anthocyanin and cellulose acetate through spinning, the production equipment cost is low, and the process is simple. The prepared anthocyanin composite nanofiber membrane has the advantages of being natural, non-toxic and good in environmental protection performance, wherein the bioactivity and the structure of anthocyanin are stable; the release uniformity of anthocyanin is improved because of uniform size distribution and high specific surface area.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to an anthocyanin composite nanofiber film and a preparation method thereof. Background technique [0002] Anthocyanins are a class of compounds formed by combining anthocyanins and sugars with glycosidic bonds. Due to their unique functionality, they are used to scavenge free radicals in the body, proliferate lutein, anti-tumor, anti-cancer, anti-inflammatory, and inhibit lipids. It is considered to be a natural pigment with high utilization value, safe, non-toxic, and has many health functions for the human body. It has been used in food and health products , cosmetics, medicine and other industries. However, anthocyanins out of their original state are less stable, and are easily affected by environmental factors (such as temperature, light, pH, etc.) and lose their functional properties. In order to make better use of the biological activity of anthocyanins and maintai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/728D04H1/4258D01F2/28D01F1/10D01D1/02
CPCD04H1/728D01D1/02D01F1/10D01F2/28D04H1/4258
Inventor 蔡杰何静仁李甜甜黄丽君周蕊
Owner WUHAN POLYTECHNIC UNIVERSITY
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