Plant starch-chitosan composite packaging film and preparation method thereof

A technology of plant starch and packaging film, applied in the field of packaging film, can solve problems such as non-recyclability, achieve good physical and mechanical properties, and reduce production costs

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

[0002] Plastic film is widely used in packaging, however, it puts a lot of pressure on the environment and society because it is not recyclable

Method used

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  • Plant starch-chitosan composite packaging film and preparation method thereof
  • Plant starch-chitosan composite packaging film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A plant starch-chitosan composite packaging film, which is made of the following mass parts of raw materials:

[0020] 90 parts of corn starch, 50 parts of chitosan, 25 parts of Coptis, 20 parts of rosemary, 15 parts of konjac powder, 15 parts of sodium alginate, 12 parts of polyvinyl alcohol, 12 parts of epoxy soybean oil, low methoxyl group 10 parts of pectin, 8 parts of calcium citrate, 8 parts of coagulated polysaccharides, 6 parts of edible gelatin, 5 parts of genipin, 4 parts of polyglycerin fatty acid esters, 3 parts of food flavors, and 1000 parts of water.

[0021] According to the above formula, prepare the plant starch-chitosan composite packaging film, and the specific steps are as follows:

[0022] (1) Add plant starch to water in batches under stirring, mix evenly to form a starch slurry, then adjust the pH value to 6-7 with a 3-5% sodium carbonate aqueous solution, and then heat to 60-80℃ and stir. 20-30min to form a uniform paste solution;

[0023] (2) Slowly a...

Embodiment 2

[0028] A plant starch-chitosan composite packaging film, which is made of the following mass parts of raw materials:

[0029] 95 parts of corn starch, 55 parts of chitosan, 28 parts of Coptis, 23 parts of rosemary, 18 parts of konjac powder, 16 parts of sodium alginate, 14 parts of polyvinyl alcohol, 13 parts of epoxy soybean oil, low methoxyl group 11 parts of pectin, 9 parts of calcium citrate, 9 parts of coagulated polysaccharides, 8 parts of edible gelatin, 6 parts of genipin, 5 parts of polyglycerol fatty acid esters, 4 parts of food flavors, and 1100 parts of water.

[0030] The preparation method of the plant starch-chitosan composite packaging film in this example is the same as that in Example 1.

Embodiment 3

[0032] A plant starch-chitosan composite packaging film, which is made of the following mass parts of raw materials:

[0033] 100 parts of corn starch, 60 parts of chitosan, 30 parts of Coptis, 25 parts of rosemary, 20 parts of konjac flour, 18 parts of sodium alginate, 15 parts of polyvinyl alcohol, 15 parts of epoxy soybean oil, low methoxyl group 12 parts of pectin, 10 parts of calcium citrate, 10 parts of coagulated polysaccharides, 9 parts of edible gelatin, 8 parts of genipin, 6 parts of polyglycerol fatty acid esters, 5 parts of food flavors, 1200 parts of water.

[0034] The preparation method of the plant starch-chitosan composite packaging film in this example is the same as that in Example 1.

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PUM

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Abstract

The invention discloses a plant starch-chitosan composite packaging film and a preparation method thereof, and relates to the technical field of packaging films. The plant starch-chitosan composite packaging film comprises raw materials in parts by mass as follows: 90-100 parts of plant starch, 50-60 parts of chitosan, 25-30 parts of rhizoma coptidis, 20-25 parts of rosemary, 15-20 parts of konjak powder, 15-18 parts of sodium alginate, 12-15 parts of polyvinyl alcohol, 12-15 parts of epoxidized soybean oil, 10-12 parts of low-methoxy pectin, 8-10 parts of calcium citrate, 8-10 parts of curdlan, 6-9 parts of edible gelatine, 5-8 parts of genipin, 4-6 parts of polyglycerol fatty acid ester, 3-5 parts of edible essence and 1,000-2,000 parts of water. According to the plant starch-chitosan composite packaging film and the preparation method thereof, the plant starch and the chitosan are taken as main raw materials, and the production cost is reduced; various coalescing agents with edible safety and an extracting solution of a Chinese herbal medicine rhizoma coptidis and rosemary are added, so that the prepared packaging film has better physical and mechanical property, barrier property and anti-oxidation function and can be used for packaging various kinds of food.

Description

Technical field: [0001] The invention relates to the technical field of packaging films, in particular to a plant starch-chitosan composite packaging film and a preparation method thereof. Background technique: [0002] Plastic film is widely used in packaging, but because it is not recyclable, it brings great pressure to the environment and society. In recent years, the research and development of edible packaging films has become a hot spot. Edible food packaging film is a film with a porous network structure formed by natural edible substances as raw materials through the interaction of different molecules. Edible packaging film can prevent the change of flavor and texture of food during storage and transportation by preventing the migration of water vapor, gas and solute, so as to ensure the quality of food, extend the shelf life of food, and can be together with the packaged food Edible without any environmental pollution problems. [0003] In the production process of edib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L5/08C08L5/04C08L29/04C08L5/06C08L5/00C08L89/00C08K13/08C08K11/00C08K5/1515C08K5/098C08J5/18B65D65/46
CPCY02A40/90Y02W90/10
Inventor 武道贵
Owner ANHUI CHAOHU SOUTH MEMBRANE IND
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