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Potato starch-based edible composite food packaging film and preparation method thereof

A potato starch and composite food technology, applied in the field of food packaging, can solve the problems of affecting the flavor of the packaged food, not easy to be degraded, toxic and side effects, etc., and achieve the effect of low price, low production cost and safe production method

Inactive Publication Date: 2012-10-03
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these plastic packages are not easy to be degraded in the environment after use and are easy to cause "white pollution".
In addition, some plastic food packaging is prone to harmful gases and odors, which has certain toxic and side effects on the human body, and at the same time affects the flavor of the packaged food.

Method used

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  • Potato starch-based edible composite food packaging film and preparation method thereof
  • Potato starch-based edible composite food packaging film and preparation method thereof
  • Potato starch-based edible composite food packaging film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Potato starch-based edible composite food packaging film, its components and weight in grams are: 3.5 g of potato starch, 1 g of pullulan, 0.5 g of gelatin, 0.75 g of glycerin, and the addition of calcium chloride is 1-0.05 g of the product respectively , Product 2-0.1g, Product 3-0.15g, Product 4-0.2g and Product 5-0.25g.

[0030] Add 3.5g of potato starch and 100mL of deionized water, gelatinize in a water bath at 80°C for 20min, add 1g of pullulan, 0.5g of gelatin and 60mL of deionized water, stir in a water bath for 20min, add 0.75g of glycerin and calcium chloride, and use deionized Dilute water to 200ml, stir in water bath for 15min, pour 48mL of film-forming solution on an area of ​​220cm 2 The surface is dry and clean on a plexiglass plate, cast into a film, dried at 50° C., cooled and peeled off the film to obtain potato starch-based edible composite food packaging film products 1-5.

[0031] The tensile strength and elongation at break of the obtained product...

Embodiment 2

[0033] The potato starch-based edible composite food packaging film has the following components and grams by weight: 3.5 g of potato starch, 1 g of pullulan, 0.5 g of gelatin, 0.75 g of sorbitol, and 0.1 g of calcium chloride.

[0034] Add 3.5g of potato starch to 100mL of deionized water, gelatinize in a water bath at 80°C for 20min, add 1g of pullulan, 0.5g of gelatin and 60mL of deionized water, stir in a water bath for 20min, add 0.75g of sorbitol and 0.1g of calcium chloride, and use Dilute the volume to 200ml with deionized water, stir in a water bath for 15min, pour 50mL of film-forming solution on an area of ​​230 cm 2 The surface is dry and clean on a plexiglass plate, cast into a film, dried at 50°C, cooled and peeled off the film to obtain a potato starch-based edible composite food packaging film.

[0035] The properties of the potato starch-based edible composite food packaging film prepared with this component and weight in grams are: tensile strength 15.25MPa, ...

Embodiment 3

[0037] The potato starch-based edible composite food packaging film has the following components and grams by weight: 3.5 g of potato starch, 0.75 g of pullulan, 0.75 g of gelatin, 1.25 g of glycerin, and 0.1 g of calcium chloride.

[0038]Add 3.5g of potato starch and 100mL of deionized water, gelatinize in a water bath at 80°C for 20min, add 0.75g of pullulan, 0.75g of gelatin and 60mL of deionized water, stir in a water bath for 20min, add 1.25g of glycerin and 0.1g of calcium chloride, Dilute to 200mL with deionized water, stir in a water bath for 15min, pour 45mL of film-forming solution on an area of ​​210cm 2 The surface is dry and clean on a plexiglass plate, cast into a film, dried at 50°C, cooled and peeled off the film to obtain a potato starch-based edible composite food packaging film.

[0039] The properties of the potato starch-based edible composite food packaging film prepared with this component and weight in grams are: tensile strength 9.13MPa, elongation at...

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Abstract

The invention relates to a potato starch-based edible composite food packaging film and a preparation method thereof, and belongs to the technical field of food packaging. According to the potato starch-based edible composite food packaging film, potato starch, pullulan polysaccharide and gelatin are used as main film-forming materials, and a plasticizer and a cross-linking agent are used as auxiliary materials. The preparation method comprises the following steps of: adding water into the potato starch, performing water bath, stirring and gelatinizing, adding the pullulan polysaccharide and the gelatin, adding the plasticizer and the cross-linking agent finally, and casting the prepared solution to form the film. The potato starch-based edible composite food packaging film has the advantages that the raw materials for preparing the film are edible, harmless to human bodies and environment-friendly, and the raw materials are can be degraded biologically after being discarded; defoaming is not required in the film preparation process, and the process is simple and low in production cost; and the prepared film is transparent and glossy, high in mechanical performance and obstruction performance and attractive in appearance. The prepared film can be used for the inner packaging of food, so that harm of nondegradable food packages to the human bodies and environment is avoided.

Description

technical field [0001] The invention relates to a potato starch-based edible composite food packaging film and a preparation method thereof, belonging to the technical field of food packaging. Background technique [0002] Plastic products born with the development of industry are widely used in food packaging and fresh-keeping because of their cheap price and stable properties. However, these plastic packages are not easily degraded in the environment after use and are likely to cause "white pollution". In addition, some plastic food packaging is prone to harmful gases and odors, which have certain toxic and side effects on the human body and affect the flavor of the packaged food. In recent years, with the enhancement of people's awareness of environmental protection and the improvement of food quality requirements, the use of new edible film packaging to replace plastic packaging, to minimize environmental pollution, and to give full play to its more excellent comprehens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/02C08L5/00C08L89/00B65D65/46C08K13/02C08K5/053C08K3/16C08J5/18C09D103/02C09D105/00C09D189/00C09D7/12
CPCY02A40/90Y02W90/10
Inventor 王利强贾超卢立新赵艺程章俊祥郑启明
Owner JIANGNAN UNIV
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