Novel preparation method of high-temperature-resistant gelatin film and product

A technology of gelatin film and high temperature resistance, applied in the field of food packaging, can solve the problems of inability to withstand boiling water bath and high temperature sterilization, disintegration of the triple helix structure of gelatin, limiting the practical application of gelatin film, etc. , the effect of low production cost

Pending Publication Date: 2021-06-11
SOUTHWEST UNIVERSITY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, heating will disintegrate the gelatin triple helix structure, so pure gelatin films have poor thermal stability, especial

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel preparation method of high-temperature-resistant gelatin film and product
  • Novel preparation method of high-temperature-resistant gelatin film and product
  • Novel preparation method of high-temperature-resistant gelatin film and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Prepare high temperature resistant gelatin films.

[0032] (1) Swelling: Dissolve 5 g of type B gelatin in 90 mL of pure water and swell for 2 h until no powdery particles exist, and all gelatin appears transparent.

[0033] (2) Dissolution: The swollen gelatin was dissolved in a water bath at 60°C for 30 minutes until it was completely dissolved, and it was in the form of a clear and uniform aqueous solution.

[0034] (3) Transglutaminase blending and defoaming: Dissolve 0.1 g of transglutaminase in 10 mL of pure water, add the gelatin solution to be dissolved after cooling to 40 °C, and mix well to provide a total valence interaction reactive groups, followed by ultrasonic treatment at 40 °C for 10 min to obtain a homogeneous cross-linked gelatin solution without bubbles.

[0035] (4) Film pouring solution: Pour 30 mL of film forming solution into a 15×15 cm polytetrafluoroethylene dish and evenly spread it to shape.

[0036] (5) Insulation treatment: Place the samp...

Embodiment 2

[0041] Prepare high temperature resistant gelatin films.

[0042] (1) Swelling: Dissolve 10 g of type B gelatin in 90 mL of pure water and swell for 2 h until no powdery particles exist, and all the gelatin appears transparent.

[0043] (2) Dissolution: The swollen gelatin was dissolved in a water bath at 60°C for 30 minutes until it was completely dissolved, and it was in the form of a clear and uniform aqueous solution.

[0044](3) Transglutaminase blending and defoaming: Dissolve 0.1 g of transglutaminase in 10 mL of pure water, add the gelatin solution to be dissolved after cooling to 40 °C, and mix well to provide a total valence interaction reactive groups, followed by ultrasonic treatment at 40 °C for 10 min to obtain a homogeneous cross-linked gelatin solution without bubbles.

[0045] (4) Film pouring solution: Pour 30 mL of film forming solution into a 15×15 cm polytetrafluoroethylene dish and evenly spread it to shape.

[0046] (5) Insulation treatment: Place the ...

Embodiment 3

[0051] Prepare high temperature resistant gelatin films.

[0052] (1) Swelling: Dissolve 15 g of B-type gelatin in 90 mL of pure water and swell for 2 h until no powdery particles exist, and all gelatin appears transparent.

[0053] (2) Dissolution: The swollen gelatin was dissolved in a water bath at 60°C for 30 minutes until it was completely dissolved, and it was in the form of a clear and uniform aqueous solution.

[0054] (3) Transglutaminase blending and defoaming: Dissolve 0.1 g of transglutaminase in 10 mL of pure water, add the gelatin solution to be dissolved after cooling to 40 °C, and mix well to provide a total valence interaction reactive groups, followed by ultrasonic treatment at 40 °C for 10 min to obtain a homogeneous cross-linked gelatin solution without bubbles.

[0055] (4) Film pouring solution: Pour 30 mL of film forming solution into a 15×15 cm polytetrafluoroethylene dish and evenly spread it to shape.

[0056] (5) Insulation treatment: Place the sam...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thermal degradation temperatureaaaaaaaaaa
Melting temperatureaaaaaaaaaa
Tensile strengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparation method of a high-temperature-resistant and sterilizable gelatin film and a product, and belongs to the technical field of food packaging. The method prepares the gelatin film through a simple soaking method and comprises the eight procedures of swelling, dissolving, transglutaminase blending and defoaming, film liquid pouring, heat preservation treatment, low-temperature treatment, alcohol precipitation dehydration film forming and alcohol elimination. According to the method, transglutaminase is utilized to catalyze covalent interaction between glutamine gamma-amino and lysine epsilon-amino in gelatin, so that the gelatin forms a stable gel network, the gelatin gel is further soaked with absolute ethyl alcohol, non-covalent interaction of the gelatin gel is induced, and the gelatin film which is resistant to high-temperature sterilization, high in mechanical property and excellent in sensory quality is obtained. The method is simple in process, easy to operate and suitable for industrial production. The gelatin film produced by the method is a faint yellow/colorless film, has excellent thermal stability, keeps the integrity of the film during boiling water treatment and sterilization treatment, and can be used as a film material for foods and medicines.

Description

technical field [0001] The invention belongs to the technical field of food packaging, and in particular relates to a novel preparation method and product of a high-temperature-resistant gelatin film. Background technique [0002] Gelatin is rich in raw materials, low in cost, has the advantages of excellent biocompatibility, biodegradability, and non-toxicity, and has good emulsifying, gelling, and film-forming properties, so it is widely used in food, Biology, medicine and printing and other fields. Gelatin has certain application value in film preparation, especially because it is rich in peptide bonds, tyrosine and phenylalanine, so gelatin film has excellent anti-ultraviolet performance, thereby reducing the quality damage of food caused by ultraviolet rays. However, heating will disintegrate the triple helix structure of gelatin, so pure gelatin films have poor thermal stability, especially cannot withstand boiling water baths and high temperature sterilization, which...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08J5/18C08J3/24C08L89/00C12P21/00
CPCC08J5/18C08J3/24C12P21/00C08J2389/00
Inventor 张宇昊彭林戴宏杰王洪霞马良朱瀚昆余永
Owner SOUTHWEST UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap