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Ferulic acid-araboxylan copolymer antibacterial film as well as preparation method and application thereof

A technology of arabinoxylan and ferulic acid, applied in the field of food chemistry, can solve the problems of prolonging the shelf life of rainbow trout fillets, and achieve good barrier properties and good antibacterial properties

Active Publication Date: 2022-07-22
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In food packaging, a number of studies have shown that polysaccharide films can prolong the storage period of food, but most of the current research is aimed at prolonging the storage period of fruits and vegetables, and few studies are aimed at aquatic products with complex strains and easy spoilage, but there are Researchers use chitosan-Aragua essential oil nanoemulsion to prepare edible active coating, which significantly prolongs the shelf life of rainbow trout fillets

Method used

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  • Ferulic acid-araboxylan copolymer antibacterial film as well as preparation method and application thereof
  • Ferulic acid-araboxylan copolymer antibacterial film as well as preparation method and application thereof
  • Ferulic acid-araboxylan copolymer antibacterial film as well as preparation method and application thereof

Examples

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preparation example Construction

[0040] The present invention also proposes a preparation method of a ferulic acid-arabinoxylan copolymer antibacterial film, which specifically includes the following steps:

[0041] (1) The solids are calculated in parts by mass, and the liquids are calculated in parts by volume, and each raw material is prepared, and the consumption of each raw material is: 0.5-0.8 parts of sodium alginate, 30-40 parts of distilled water, 0.3-0.6 parts of glycerin, and the mass concentration is 10 mg 10-15 parts of ferulic acid-arabinoxylan copolymer / mL;

[0042] (2) disperse sodium alginate in distilled water and stir to obtain sodium alginate solution, and the solution is a transparent homogeneous solution;

[0043] (3) add glycerol in the described sodium alginate solution, stir, obtain sodium alginate-glycerol mixed solution;

[0044] (4) add ferulic acid-arabinoxylan copolymer to the sodium alginate-glycerol mixed solution, stir to obtain the film mixed solution;

[0045] (5) stirring...

Embodiment 1

[0051] A ferulic acid-arabinoxylan copolymer antibacterial film proposed in this embodiment includes the following raw materials: 0.6 part of sodium alginate, 30 parts of distilled water, 0.5 part of glycerin, and ferulic acid-arabino with a mass concentration of 10 mg / mL 10 parts of xylan copolymer.

[0052] Prepare as follows:

[0053] (1) The dosage of each raw material is: 0.6 part of sodium alginate, 30 parts of distilled water, 0.5 part of glycerin, and 10 parts of ferulic acid-arabinoxylan copolymer with a mass concentration of 10 mg / mL.

[0054] (2) disperse sodium alginate in distilled water and stir to obtain sodium alginate solution;

[0055] (3) add glycerol in the described sodium alginate solution, stir, obtain sodium alginate-glycerol mixed solution;

[0056] (4) add ferulic acid-arabinoxylan copolymer to the sodium alginate-glycerol mixed solution, stir to obtain the film mixed solution;

[0057] (5) stirring the film mixture in a water bath at 30°C for 30mi...

Embodiment 2

[0106] In this example, the films obtained in Example 1 and Comparative Examples 1-4 (or some of the comparative examples) were used as samples. rate, elongation at break, tensile stress and antimicrobial properties were tested. The films prepared in Example 1 and Comparative Examples 1-4 were named FA-AX film (representing sample 1 in Example 1), AX film (representing sample 2 in Comparative Example 1), and SA film (representing Comparative Example 1), respectively. 2), FA+AX film (representing sample 4 in comparative example 3), GUM film (representing sample 5 in comparative example 4).

[0107] 1. Morphological determination

[0108] The surface and cross-section of FA-AX thin film, AX thin film, SA thin film and FA+AX thin film samples were scanned by electron microscope respectively. 500, c×5000) such as figure 1 shown.

[0109] from figure 1 It can be seen that the FA-AX film is a large sheet-like molecule. There is no obvious arabinoxylan and ferulic acid structure...

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Abstract

The invention provides a ferulic acid-arabinoxylan copolymer antibacterial film, a preparation method and application, the antibacterial film is prepared by adopting sodium alginate as a film forming substrate and ferulic acid-arabinoxylan copolymer as an additive, and the antibacterial film is prepared from 0.5-0.8 part of sodium alginate, 30-40 parts of distilled water, 0.3-0.6 part of glycerol and 10-15 parts of ferulic acid-arabinoxylan copolymer. The method comprises the following steps: sequentially adding sodium alginate, glycerol and a ferulic acid-arabinoxylan copolymer into distilled water, and uniformly stirring to obtain a film mixed solution; stirring the film mixed solution in a water bath, and performing ultrasonic degassing; and drying the degassed film mixed solution, and standing to obtain the ferulic acid-araboxylan copolymer antibacterial film. The ferulic acid-araboxylan copolymer antibacterial film prepared by the preparation method disclosed by the invention has a relatively good barrier property on water vapor and oxygen, also has a relatively good antibacterial property, and has a certain positive effect on preservation of aquatic products.

Description

technical field [0001] The invention belongs to the field of food chemistry, in particular to a ferulic acid-arabinoxylan copolymer antibacterial film, a preparation method and an application. Background technique [0002] Ferulic acid is a hydroxycinnamic acid, which exists in free or conjugated form in medicines such as ferulic acid, cohosh, angelica, and foods such as wheat bran, rice bran, bagasse, and sugar beet pulp. The natural product polysaccharide has good cytocompatibility, viscoelasticity, gelling, antioxidant, antibacterial and so on. The use of ferulic acid to modify polysaccharides to improve their antioxidant and antibacterial properties, thereby expanding the application scope of polysaccharides, has become a research hotspot of polysaccharides. [0003] Polysaccharide has become the preferred raw material for the development of degradable films due to its good viscosity. At present, chitosan has been used as a raw material to develop food packaging materia...

Claims

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Application Information

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IPC IPC(8): C08L5/04C08L5/14C08K5/13C08K5/053C08J5/18B65D81/28
CPCC08J5/18B65D81/28C08J2305/04C08J2405/14C08K5/13C08K5/053Y02W90/10
Inventor 贾鑫殷丽君张新雪王琨
Owner CHINA AGRI UNIV
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