Degradable food packaging film

A food packaging film and high-gluten flour technology, applied in the field of food packaging film, can solve the problems of white pollution, impact on the environment, accumulation, etc., achieve the effect of strong physical and mechanical properties, protect the ecological environment, and avoid white pollution

Inactive Publication Date: 2018-08-07
ANHUI CHAOHU SOUTH MEMBRANE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, these packaging films have the disadvantage of being difficult to degrade or take a long time to degrade, which is easy to cause white pollution and affect the environment; on the other hand, these packaging films have poor air permeability. If the oxygen concentration in the packaging film is too low or If the concentration of carbon dioxide is too high, the fruit will undergo anaerobic respiration, resulting in the accumulation of volatile substances such as ethanol and acetaldehyde, resulting in peculiar smell and smell, and reducing the flavor quality of the fruit

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A degradable food packaging film is made of the following raw materials in parts by mass:

[0020] 60 parts of high-gluten flour, 40 parts of starch, 15 parts of wheat husk powder, 12 parts of epoxy soybean oil, 15 parts of nano calcium carbonate, 12 parts of fumed silica, 10 parts of polyvinyl alcohol, 8 parts of sodium alginate, 8 parts of glycerin 6 parts of sodium bicarbonate, 5 parts of konjac glucomannan, 5 parts of low methoxy pectin, 3 parts of sodium citrate, 3 parts of agar, 3 parts of genipin, 2 parts of polyglycerol fatty acid ester, water 800 copies.

[0021] The particle size of the nano-calcium carbonate is 30nm.

[0022] A preparation method of a degradable food packaging film, comprising the steps of:

[0023] (1) Add high-gluten flour, wheat husk powder and epoxidized soybean oil into the ultrasonic extraction tank, then add 5 times the volume concentration of ethanol that is 85%% by weight, through three times of ultrasonic extraction, the resulting...

Embodiment 2

[0028] A degradable food packaging film is made of the following raw materials in parts by mass:

[0029] 80 parts of high-gluten flour, 50 parts of starch, 20 parts of wheat husk powder, 18 parts of epoxy soybean oil, 18 parts of nano calcium carbonate, 15 parts of fumed silica, 12 parts of polyvinyl alcohol, 10 parts of sodium alginate, 10 parts of glycerin 9 parts of sodium bicarbonate, 8 parts of konjac glucomannan, 8 parts of low methoxyl pectin, 5 parts of sodium citrate, 6 parts of agar, 5 parts of genipin, 3 parts of polyglycerol fatty acid ester, water 1000 copies.

[0030] The particle size of the nanometer calcium carbonate is 50nm.

[0031] A preparation method of a degradable food packaging film, comprising the steps of:

[0032] (1) high-gluten flour, wheat husk powder and epoxidized soybean oil are added in the ultrasonic extraction tank, then adding 5 times of weight volume concentration is 95% ethanol, through three times of ultrasonic extraction, the gained...

Embodiment 3

[0037] A degradable food packaging film is made of the following raw materials in parts by mass:

[0038] 70 parts of high-gluten flour, 45 parts of starch, 18 parts of wheat husk powder, 15 parts of epoxy soybean oil, 16 parts of nano calcium carbonate, 13 parts of fumed silica, 11 parts of polyvinyl alcohol, 9 parts of sodium alginate, 9 parts of glycerin 8 parts of sodium bicarbonate, 7 parts of konjac glucomannan, 6 parts of low methoxyl pectin, 4 parts of sodium citrate, 5 parts of agar, 4 parts of genipin, 3 parts of polyglycerol fatty acid ester, water 900 copies.

[0039] The particle size of the nano-calcium carbonate is 40nm.

[0040] A preparation method of a degradable food packaging film, comprising the steps of:

[0041] (1) high-gluten flour, wheat husk powder and epoxidized soybean oil are added in the ultrasonic extraction tank, then adding 5 times the volume concentration of weight is 90% ethanol, through three times of ultrasonic extraction, the gained fil...

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Abstract

The invention discloses a degradable food packaging film and relates to the technical field of packaging films. According to the degradable food packaging film disclosed by the invention, high glutenflour and starch are utilized as main raw materials, and varieties of additives are utilized as auxiliary materials; thus, the prepared packaging film has the advantages of stronger physical mechanical property, permselectivity, bacterial resistance and oxidation resistance; furthermore, the chosen raw materials are easy to degrade; thus, white pollution is avoided, and ecological environment is protected.

Description

Technical field: [0001] The invention relates to the technical field of packaging films, in particular to a degradable food packaging film. Background technique: [0002] Plastic film packaging is currently the most widely used packaging material for fresh fruit and vegetable production. It is transparent, so you can clearly see the condition of the packaged products; it has moisturizing properties, which can reduce the moisture loss of products and increase the freshness; It is airtight to protect the product from contamination. [0003] At present, the food packaging films used in China are generally based on polymers such as polyethylene, polypropylene, and polyvinyl chloride, and are made by mixing plasticizers, inorganic fillers, and antibacterial agents. On the one hand, these packaging films have the disadvantage of being difficult to degrade or take a long time to degrade, which is easy to cause white pollution and affect the environment; on the other hand, these p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L29/04C08L5/04C08L5/02C08K13/02C08K3/26C08K3/36C08K5/098C08J5/18
CPCC08J5/18C08J2303/02C08J2405/02C08J2405/04C08J2429/04C08K3/36C08K5/098C08K13/02C08K2003/265C08K2201/003C08K2201/011
Inventor 武道贵
Owner ANHUI CHAOHU SOUTH MEMBRANE IND
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