Degradable cereal prolamin-chitosan composite packaging film for fruits and vegetables

A prolamin and composite technology, applied in the field of fruit and vegetable packaging film, can solve the problems of affecting the environment, white pollution, accumulation, etc., and achieve the effects of protecting the ecological environment, avoiding white pollution, and strengthening physical and mechanical properties

Inactive Publication Date: 2015-05-13
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 pa

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A degradable cereal prolamin-chitosan composite fruit and vegetable packaging film is made of the following raw materials in parts by mass:

[0021] 90 parts of zein, 65 parts of carboxymethyl chitosan, 20 parts of clove, 25 parts of propolis, 18 parts of sodium alginate, 15 parts of polyvinyl alcohol, 18 parts of nano calcium carbonate, 15 parts of epoxy soybean oil, gas phase 12 parts of silicon dioxide, 11 parts of zinc sulfide, 10 parts of konjac glucomannan, 9 parts of low methoxyl pectin, 8 parts of coagulant polysaccharide, 7 parts of soybean isoflavone, 6 parts of genipin, polyglycerol fatty acid ester 5 parts, 800 parts of water.

[0022] Wherein, the particle diameter of nanometer calcium carbonate is 30-50nm.

[0023] According to the above formula, the degradable gliadin-chitosan composite fruit and vegetable packaging film is prepared, and the specific steps are as follows:

[0024] (1) Add cloves and propolis that have been cleaned and dried to an ultras...

Embodiment 2

[0031] A degradable cereal prolamin-chitosan composite fruit and vegetable packaging film is made of the following raw materials in parts by mass:

[0032] 95 parts of wheat prolamin, 65 parts of carboxymethyl chitosan, 22 parts of clove, 20 parts of propolis, 18 parts of sodium alginate, 15 parts of polyvinyl alcohol, 16 parts of nano calcium carbonate, 15 parts of epoxy soybean oil, gas phase 13 parts of silicon dioxide, 11 parts of zinc sulfide, 10 parts of konjac glucomannan, 9 parts of low methoxyl pectin, 8 parts of coagulated polysaccharide, 7 parts of soybean isoflavone, 6 parts of genipin, polyglycerol fatty acid ester 5 parts, 900 parts of water.

[0033] The preparation method of the composite fruit and vegetable packaging film described in this example is the same as that in Example 1.

Embodiment 3

[0035] A degradable cereal prolamin-chitosan composite fruit and vegetable packaging film is made of the following raw materials in parts by mass:

[0036] 100 parts of kafirin, 70 parts of carboxymethyl chitosan, 25 parts of clove, 20 parts of propolis, 18 parts of sodium alginate, 16 parts of polyvinyl alcohol, 16 parts of nano calcium carbonate, 15 parts of epoxy soybean oil, gas phase two 13 parts of silicon oxide, 11 parts of zinc sulfide, 10 parts of konjac glucomannan, 9 parts of low methoxyl pectin, 8 parts of curd polysaccharide, 7 parts of soybean isoflavone, 6 parts of genipin, 5 parts of polyglycerol fatty acid ester parts, 1000 parts of water.

[0037] The preparation method of the composite fruit and vegetable packaging film described in this example is the same as that in Example 1.

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Abstract

The invention discloses a degradable cereal prolamin-chitosan composite packaging film for fruits and vegetables and relates to the technical field of packaging films for the fruits and the vegetables. The packaging film is prepared from raw materials in parts by mass as follows: 90-100 parts of cereal prolamin, 60-70 parts of carboxymethyl chitosan, 20-25 parts of cloves, 20-25 parts of propolis, 18-20 parts of sodium alginate, 15-20 parts of polyvinyl alcohol, 16-18 parts of nano calcium carbonate, 15-18 parts of epoxidized soybean oil, 12-15 parts of fumed silica, 10-12 parts of zinc sulfide, 10-12 parts of konjac glucomannan, 8-10 parts of low-methoxyl pectin, 8-10 parts of curdlan, 6-9 parts of soy isoflavone, 5-8 parts of genipin, 3-6 parts of polyglycerol fatty acid ester and 800-1000 parts of water. The cereal prolamin and the chitosan are used as main raw materials, and various aids are used as auxiliary materials, so that the produced packaging film has higher physical and mechanical properties, selective permeability and antibacterial and anti-oxidation effects; besides, the selected raw materials can be degraded easily, so that the ecological environment is protected.

Description

Technical field: [0001] The invention relates to the technical field of fruit and vegetable packaging films, in particular to a degradable cereal prolamin-chitosan composite fruit and vegetable 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 fruit and vegetable packaging films used in China are generally based on polymers such as polyethylene, polypropylene, and polyvinyl chloride, and are made by adding some 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, whi...

Claims

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Application Information

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IPC IPC(8): C08L89/00C08L5/08C08L5/00C08L5/04C08L29/04C08L5/06C08L71/08C08K13/02C08K3/26C08K5/1515C08K3/36C08K3/30C08J5/18
Inventor 武道贵
Owner ANHUI CHAOHU SOUTH MEMBRANE IND
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