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Preparing method of food preservative film

A technology of food preservation and film solution, which is applied in the field of preparation of food preservation film, can solve the problems of unclean cleaning, human hazards, etc., and achieve excellent anti-oxidation effect, good water permeability, and no side effects

Inactive Publication Date: 2015-11-25
NANNING JUXIANG PLASTIC PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method of food preservation film, so as to overcome the disadvantages of using paraffin and other preservation food in the prior art to cause harm to the human body when cleaning is not clean

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take g as the unit, weigh the raw materials of each component required, 400g of soybean protein, 200g of glycerin, 100g of Houttuynia cordata extract, and set aside; take protein, glycerin and Houttuynia cordata extract, dissolve them in water, and heat to a temperature of 50 ℃ and stirred for 15 minutes; after stirring, adjust the pH value of the obtained solution to 9 with ammonia water, continue to stir for 5 minutes to form a film solution, and cool the film solution to room temperature; spread the cooled film solution on a polyethylene film lined with a width of 10cm , into a mold with a length of 100cm, then put it into a high-temperature oven at 80°C, bake for 30s, take it out, put it in room temperature to dry for 10h, and peel off the film.

Embodiment 2

[0023] Take g as the unit, weigh the raw materials of each component required, 600g of soybean protein, 300g of glycerin, 200g of Houttuynia cordata extract, and set aside; take protein, glycerin and Houttuynia cordata extract, dissolve them in water, and heat to a temperature of 60 ℃ and stirred for 12 minutes; after stirring, adjust the pH value of the obtained solution to 8 with ammonia water, and continue to stir for 5 minutes to form a film solution, and cool the film solution to room temperature; the cooled film solution is spread on a polyethylene film lined with a width of 15cm , into a mold with a length of 78cm, then put it into a high-temperature oven at 90°C, bake for 10s, take it out, put it in room temperature to dry for 8h, and peel off the film.

Embodiment 3

[0025] Take g as the unit, weigh the raw materials of each component required, 500g of soybean protein, 300g of glycerin, 200g of Houttuynia cordata extract, and set aside; take protein, glycerin and Houttuynia cordata extract, dissolve them in water, and heat to a temperature of 55 ℃ and stirred for 13 minutes; after stirring, adjust the pH value of the obtained solution to 8 with ammonia water, continue to stir for 5 minutes to form a film solution, and cool the film solution to room temperature; the cooled film solution is spread on a polyethylene film lined with a width of 13cm , into a mold with a length of 150cm, then put it into a high-temperature oven at 85°C, bake for 20s, take it out, dry it at room temperature for 9 hours, and peel off the film.

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Abstract

The invention discloses a preparing method of a food preservative film. The method comprises the following operations that (1) an albumen, glycerinum and cordate houttuynia extracting solution is dissolved into water, and is heated and stirred for 12 to 15 minutes; (2) the pH value of the solution obtained through stirring in the first step is regulated to 8 to 9, the solution is continuously stirred for 5 minutes to form a film solution, and the film solution is cooled to the room temperature; (3) the film solution cooled in the second step is spread in a mold lined with a polyethylene film, then, the mold is put into a high-temperature drying oven and is taken out after being dried for 10 to 30 seconds; the mold is put at the room temperature to be dried for 8 to 10 hours, and the film uncovering is performed. The prepared food preservative film has an excellent antioxidant effect; the preservative effect on food is very good; the food preservative film has higher water permeability and low oxygen permeability; when the food preservative film is used for achieving the preservative purpose, green and pollution-free effects are achieved; the kind of preservative film can be used and has no side effect on human bodies; further, the preparing method is simple; the operation is easy.

Description

technical field [0001] The invention relates to a preparation method of a fresh-keeping film, in particular to a preparation method of a food preservation film. Background technique [0002] Plastic wrap is a kind of plastic packaging product, usually made of ethylene as the masterbatch through polymerization reaction, mainly used in microwave oven food heating, refrigerator food preservation, fresh and cooked food packaging and other occasions, in family life, supermarkets, hotels and restaurants It is widely used in the field of industrial food packaging. According to the different materials used and the addition of plasticizers, plastic wrap is divided into various types, which can be applied to different occasions. Such as food plastic wrap. The problem of food preservation has been widely concerned in the food industry for a long time. There are various methods of preservation. The most commonly used methods are refrigeration, controlled atmosphere, irradiation, antio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L89/00C08K5/053C08K5/00
Inventor 韦春翔韦德成
Owner NANNING JUXIANG PLASTIC PROD CO LTD