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A kind of preparation method of fish gelatin antibacterial film

A technology of fish gelatin and antibacterial film, which is applied in the field of preparation of fish gelatin antibacterial film, can solve the problems of high extraction process level, limited source of antibacterial agent, poor stability of extract, etc., to increase melting temperature, expand functional use, and overcome antibacterial The effect of lack of characteristics

Active Publication Date: 2021-03-16
JIANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional antibacterial agents have limited sources, high extraction process requirements, high extraction costs, poor extract stability, poor heat resistance, and weak antibacterial effects, so their applications have been greatly restricted.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of preparation method of fish gelatin antibacterial film, its steps are:

[0033] (1) Dissolve fish gelatin in distilled water to obtain a fish gelatin solution with a solute mass fraction of 5%; dissolve γ-polyglutamic acid in distilled water to obtain a γ-polyglutamic acid solution with a solute mass fraction of 0.1% ; The fish gelatin solution and the γ-polyglutamic acid solution are uniformly mixed according to the ratio of the volume ratio fish gelatin solution / γ-polyglutamic acid solution=5:1, and the fish gelatin-γ-polyglutamic acid solution is obtained. Glutamic acid mixed solution.

[0034] (2) Add evening primrose oil to obtain solution A in the fish gelatin-γ-polyglutamic acid mixed solution, the addition of described evening primrose oil is the fish gelatin in the fish gelatin-γ-polyglutamic acid mixed solution 0.2 times of the quality; adding tea tree essential oil to obtain solution B in the solution A, the addition of the tea tree essential oil is...

Embodiment 2

[0037] A kind of preparation method of fish gelatin antibacterial film, its steps are:

[0038] (1) Dissolve fish gelatin in distilled water to obtain a fish gelatin solution with a solute mass fraction of 7%; dissolve gamma-polyglutamic acid in distilled water to obtain a solute mass fraction of 0.2% gamma-polyglutamic acid solution ; The fish gelatin solution and the γ-polyglutamic acid solution are uniformly mixed according to the ratio of the volume ratio fish gelatin solution / γ-polyglutamic acid solution=2:1, and the fish gelatin-γ-polyglutamic acid solution is obtained. Glutamic acid mixed solution.

[0039] (2) Add evening primrose oil to obtain solution A in the fish gelatin-γ-polyglutamic acid mixed solution, the addition of described evening primrose oil is the fish gelatin in the fish gelatin-γ-polyglutamic acid mixed solution 0.4 times of the quality; adding tea tree essential oil to obtain solution B in the solution A, the addition of the tea tree essential oil is ...

Embodiment 3

[0042] A kind of preparation method of fish gelatin antibacterial film, its steps are:

[0043] (1) Dissolve fish gelatin in distilled water to obtain a fish gelatin solution with a solute mass fraction of 10%; dissolve γ-polyglutamic acid in distilled water to obtain a γ-polyglutamic acid solution with a solute mass fraction of 0.3% ; The fish gelatin solution and the γ-polyglutamic acid solution are uniformly mixed according to the ratio of the volume ratio fish gelatin solution / γ-polyglutamic acid solution=1:1, and the fish gelatin-γ-polyglutamic acid solution is obtained. Glutamic acid mixed solution.

[0044] (2) Add evening primrose oil to obtain solution A in the fish gelatin-γ-polyglutamic acid mixed solution, the addition of described evening primrose oil is the fish gelatin in the fish gelatin-γ-polyglutamic acid mixed solution 0.6 times of the quality; adding tea tree essential oil to obtain solution B in the solution A, the addition of the tea tree essential oil i...

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Abstract

The invention discloses a method for preparing a fish gelatin antibacterial film, which is characterized in that it comprises the following steps: (1) preparing a fish gelatin-γ-polyglutamic acid mixed solution, the fish gelatin-γ-polyglutamic acid mixed solution It is a mixed solution of fish gelatin and γ-polyglutamic acid; (2) adding evening primrose oil, tea tree essential oil, sodium starch octenyl succinate, glycerin to the mixed solution of fish gelatin-γ-polyglutamic acid and sorbitol to prepare a fish gelatin antibacterial film solution; (3) carry out ultrasonic degassing treatment to the fish gelatin antibacterial film solution, dry and sterilize after degassing to obtain the fish gelatin antibacterial film. The invention can effectively improve the melting temperature of the fish gelatin antibacterial film, improve the process of replacing the mammalian gelatin antibacterial film with the fish gelatin antibacterial film, improve the antibacterial properties of the fish gelatin antibacterial film at the same time, and overcome the traditional antibacterial agent in the prior art by adding the fish gelatin antibacterial film Insufficient antimicrobial properties.

Description

technical field [0001] The invention belongs to the technical field of fish gelatin processing, and in particular relates to a preparation method of a fish gelatin antibacterial film. Background technique [0002] Because gelatin has functional properties such as gelation and film-forming properties, it can be processed into film materials for food packaging to extend the shelf life of food, such as patents CN107955195A, CN106519708A, etc. However, most of the gelatin used to make membrane materials currently comes from mammals, such as pigs and cattle. However, diseases such as mad cow disease and foot-and-mouth disease make the safety of mammalian gelatin questioned by consumers, and finding substitutes for mammalian gelatin for the production of membrane materials has become a problem that needs to be solved. [0003] Fish gelatin is derived from the moderate breakage of fish collagen, has properties such as gelation and film-forming properties, and is currently recogniz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L3/06C08L89/00C08L77/04C08L91/00C08K5/053C08K5/00C08J5/18
CPCC08J5/18C08J2303/06C08J2377/04C08J2389/00C08J2403/06C08J2477/04C08J2489/00C08J2491/00C08K5/00C08K5/0058C08K5/053
Inventor 涂宗财沙小梅叶云花张露刘俊
Owner JIANGXI NORMAL UNIV
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