Preparation method of protein edible film

A technology for protein and film formation, which is applied in the field of improving the production efficiency of protein edible films, and can solve problems such as application limitations

Active Publication Date: 2021-08-27
JIMEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the application of Chaotropic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] S1, Chaotropic ion solution preparation: Dissolve 5g sodium chloride, 1g potassium chloride, 3g lysine, 5g arginine, 4g histidine, 0.3g cysteine ​​and 0.1g ascorbic acid in about 1000ml of distilled water , to prepare about 1kg of Chaotropic ion solution;

[0026] S2, preparation of film-forming solution: dissolve and disperse 250 g of soybean protein in 1 kg of Chaotropic ion solution prepared in step 1, add 50 g of glycerin and 30 g of sorbitol, and heat in a water bath at 90°C for 60 min;

[0027] S3, casting: uniformly casting the prepared soybean protein film-forming solution on the steel belt, with a thickness of 0.15 mm;

[0028] S4, drying into film: drying at 60°C for 1 minute, 80°C for 1 minute, 100°C for 1 minute, 120°C for 1 minute, and 60°C for 1 minute to prepare an edible soybean protein film with a thickness of about 0.06 mm.

Embodiment 2

[0030] S1, Chaotropic ion solution preparation: Dissolve 5g sodium chloride, 1g potassium chloride, 3g lysine, 5g arginine, 4g histidine, 0.3g cysteine ​​and 0.1g ascorbic acid in about 1000ml of distilled water , to prepare about 1kg of Chaotropic ion solution;

[0031] S2, preparation of film-forming solution: dissolve and disperse 250g of soybean protein in 1kg of Chaotropic ion solution prepared in step 1, add 50g of glycerin, 30g of sorbitol and 20g of trehalose, and heat in a 90°C water bath for 60min;

[0032] S3, casting: uniformly casting the prepared soybean protein film-forming solution on the steel belt, with a thickness of 0.15 mm;

[0033] S4, drying into film: drying at 60°C for 1 minute, 80°C for 1 minute, 100°C for 1 minute, 120°C for 1 minute, and 60°C for 1 minute to prepare an edible soybean protein film with a thickness of about 0.06 mm.

Embodiment 3

[0035] S1, preparation of Chaotropic ion solution: dissolve 1g sodium chloride, 1g potassium chloride, 1g lysine, 2g arginine, 4g histidine, 0.2g cysteine ​​and 0.2g ascorbic acid in about 1000ml of distilled water , to prepare about 1kg of Chaotropic ion solution;

[0036] S2, preparation of film-forming solution: dissolve and disperse 150 g of rice protein in 1 kg of Chaotropic ion solution prepared above, add 25 g of glycerin, 20 g of sorbitol and 5 g of trehalose, and heat in a water bath at 70°C for 120 min;

[0037] S3, casting: uniformly casting the prepared rice protein film-forming solution on the steel belt, with a thickness of 0.3mm;

[0038] S4, drying into a film: drying at 60°C for 2 minutes, 80°C for 2 minutes, 100°C for 4 minutes, and 60°C for 2 minutes to prepare an edible rice protein film with a thickness of about 0.06 mm.

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PUM

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Abstract

The invention discloses a preparation method of a protein edible film. The method comprises the following steps of: dissolving protein serving as a main raw material by using a Chaotropic ionic solution consisting of amino acid and salt, adding a food plasticizer consisting of glycerol, sorbitol and trehalose, heating in a water bath at 70-90 DEG C, and drying by using hot air to prepare the edible protein film. The initial mass concentration of the protein film-forming solution is improved by adopting the Chaotropic ion solution, the drying time can be shortened, and industrial production of the protein edible film is facilitated.

Description

technical field [0001] The invention belongs to the technical field of edible film production and processing, and specifically relates to a Chaotropic ion solution composed of amino acids and salts to improve the solubility of proteins rich in sulfhydryl groups, thereby improving the production efficiency of protein edible films. Background technique [0002] Edible film is a film with a certain tensile strength prepared from natural polymer materials such as protein, polysaccharide and lipid, which can replace plastic film in food packaging and reduce environmental pollution caused by plastic products. Edible protein films have better mechanical and gas barrier properties than those prepared from polysaccharides or lipids. Moreover, edible films prepared from sulfhydryl-rich proteins have good mechanical properties and water resistance. However, sulfhydryl-rich proteins are generally not easily soluble in water. [0003] Chaotropic ion is a solution composed of salt and a...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L89/00C08K3/16C08K5/17
CPCC08J5/18C08J2389/00C08K3/16C08K5/175Y02W90/10
Inventor 翁武银江佳琳胡颜寓陈凤颖
Owner JIMEI UNIV
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