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Edible film as well as preparation method and application thereof

An edible film and food technology, applied in transportation and packaging, flexible coverings, packaging, etc., can solve the problems of poor heat sealing, poor water resistance and oil resistance, poor weather resistance, etc., to improve applicability, excellent mechanical properties, The effect of improving weather resistance

Inactive Publication Date: 2020-09-11
WUHAN HAIJIYA BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of insufficient mechanical strength, poor heat sealing performance, poor water resistance and oil resistance, poor antibacterial effect, poor weather resistance and other problems existing in the existing edible film.

Method used

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  • Edible film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] The preparation method of above-mentioned edible film, concrete process is as follows:

[0027] (1) After heating the batching tank to a constant temperature of 50-70°C, turn on the stirring paddle at a stirring speed of 300-500r / min, weigh the raw materials according to the above formula ratio, and add purified water, compound food glue, Pullulan, maltodextrin, compound preservative and plasticizer are stirred at constant temperature for 1 to 2 hours to fully dissolve.

[0028] (2) Add the weighed thickener, food defoamer, and guarana extract to the raw materials dissolved in step (1) in sequence, increase the stirring speed to 1000-1200r / min, and continue stirring at constant temperature for 1-2 Hours, the film solution was obtained.

[0029] (3) Keep the membrane liquid at a constant temperature of 50-60°C, and measure the viscosity of the membrane liquid. After the detection, the viscosity of the membrane liquid meets the specified requirements before entering the ...

Embodiment 1

[0035] This embodiment provides an edible film, including the following components by mass percentage: 60% of purified water, 5% of compound food gum, 25% of pullulan, 5% of maltodextrin, compound preservative 0.1%, plasticizer 2.3%, thickener 2%, food defoamer 0.1%, guarana extract 0.5%. Among them, the compound food glue is a composition of gelatin and Brunei gum at a mass ratio of 1:1, the compound preservative is a composition of polylysine and lysozyme at a mass ratio of 1:1, and the plasticizer is glycerin and lysozyme. The composition of thiritol according to the mass ratio of 0.2:1, the thickener is sodium alginate, and the food defoamer is polydimethylsiloxane.

[0036] The edible film of this embodiment is formed into a dense film material by the above-mentioned preparation method, and then produced into a film of the designed size through processes such as winding and cutting.

Embodiment 2

[0038] This embodiment provides an edible film, including the following components by mass percentage: 69.7% of purified water, 8% of compound food gum, 20% of pullulan, 5% of maltodextrin, compound preservative 0.1%, plasticizer 3%, thickener 2%, food defoamer 0.1%, guarana extract 0.1%. Among them, the compound food glue is a composition of gelatin and Brunei gum in a mass ratio of 2:1, the compound preservative is a composition of potassium sorbate and citric acid in a mass ratio of 1:1, and the plasticizer is glycerin and erythritis The composition of sugar alcohol with a mass ratio of 0.3:1, the thickener is sodium alginate, and the food defoamer is polydimethylsiloxane.

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Abstract

The invention provides an edible film as well as a preparation method and application thereof. The edible film is prepared from the following components in percentage by mass: 60-80% of purified water, 5-15% of compound food gum, 10-25% of pulullan, 5-10% of maltodextrin, 0.05-0.1% of compound preservative, 2-5% of plasticizer, 1-2% of thickener, 0.05-0.1% of food defoamer and 0.1-0.5% of guaranaextract. According to the invention, a plurality of film-forming agents, plasticizers and thickeners achieve a synergistic effect and a large number of plasticizers and thickeners are screened and optimized, so that the weather resistance of the membrane material can be greatly improved by the proportion of the compound plasticizer and the thickener, and the influence of the environmental temperature and humidity on the product performance is greatly reduced, so that the product meets the national standard of food safety, has excellent mechanical property, oxidation resistance, water and oil resistance, hot water instant solubility and weather resistance, improves the applicability of the product, and can be used for preparing a membrane, a food packaging bag and a carrier for a printing or printing process.

Description

technical field [0001] The invention belongs to the technical field of food materials, and in particular relates to an edible film and a preparation method thereof. Background technique [0002] Edible film is made of edible materials through mixing, heating, coating, drying and other steps. It is an edible film that can keep food fresh and has the function of packaging protection. It uses natural edible substances (such as polysaccharides, proteins, fats, etc.) as raw materials, and forms a film with a porous network structure through the interaction between different molecules, which can be covered on the food surface by wrapping, coating, microcapsules, etc. It can block the penetration of water vapor, other gases or various solutes, and play a protective role to ensure the quality of food and extend the shelf life of food. [0003] However, the current edible films have problems such as insufficient mechanical strength, poor heat sealability, poor water resistance and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L5/00C08L3/02C08L89/00C08L77/04C08L5/04C08L83/04C08K5/053C08K5/092C08K5/098C08J5/18B65D65/46
CPCB65D65/463C08J5/18C08J2305/00C08J2403/02C08J2405/00C08J2405/04C08J2477/04C08J2483/04C08J2489/00C08K5/053C08K2201/014
Inventor 孟庆阳明星周湘汉黄建华
Owner WUHAN HAIJIYA BIOTECH CO LTD