Soluble and edible composite corn starch packing-film and its prepn

A technology of composite packaging film and corn starch, which is applied in the field of food packaging, can solve the problems of inability to enter mechanical automation operations, insufficient mechanical strength, environmental pollution, etc., and achieve good mechanical strength, complete environment, and no environmental pollution.

Inactive Publication Date: 2003-01-01
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fragility of the film, it is easily soluble in water, which limits its use
In recent years, people have done a lot of work in the development of new soluble and edible packaging materials. Some people use corn starch and potato starch as the main ingredients, supplemented with edible additives to make edible films, which are used for packaging of candy, preserved fruit and candied fruit. Inner packaging, although the tensile mechanical strength, toughness, transparency, and instant solubility of the product are better than the "glutinous rice paper" used in food f

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Example 1: 1. The principle of material selection is to select the following components and weight percentages:

[0023] Corn starch 50-82%, choose 82%; konjac flour 8-40%, choose konjac fine powder modified by sodium tripolyphosphate, 8%, enhancer 3-15%, choose gelatin 4.9%, enhancer 0.1 -1.5%, choose polyethylene glycol 0.1%, binder is 3%-15%, choose rice starch 5%; strengthener can also be sodium alginate, plasticizer can also be ethylene glycol, or glycerin, Or sorbitol, one or more; the binder can also be tapioca starch, or lotus root starch, one or more.

example 2

[0024] Example 2: Corn starch is 50%, modified konjac flour is 25%, sodium alginate is 10%, glycerin is 1.5%, and tapioca starch is 13.5%.

example 3

[0025] Example 3: The preferred technical solution is: corn starch 60%, modified konjac powder 20%, gelatin 10%, sorbitol 0.5%, lotus root starch 9.5%.

[0026] Embodiments of the inventive method:

[0027] Example 1: the preparation method of the described soluble edible corn starch composite packaging film, it comprises the following processing steps:

[0028] 1. Preparation of main material glue: mix and gelatinize the formula amount of cornstarch with a certain amount of water;

[0029] 2. Preparation of auxiliary material glue: the modified konjac powder of the formula amount is soluble and gelled with a certain amount of water;

[0030] 3. Preparation of composite glue: the main material glue and auxiliary material glue and the formula amount of plasticizer, strengthener, binder and water are mixed and compounded at a certain temperature to obtain a composite glue;

[0031] 4. Deaeration of the composite glue: put the composite glue under the condition of negative pres...

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PUM

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Abstract

The present invention relates to one kind of soluble and edible composite corn starch packing-film and its preparation. The composite packing film is prepared with corn starch and konjaku, as well as reinforcer, strengthener and adhesive and through the steps of preparation of main gelatin, preparation of auxiliary gelatin, adding reinforcer, strengthener and adhesive, dissolving with water, gelatinizing to prepare composite gelatin and final filming. The present invention has the advantages of wide material source, no harm to human body, no pollution, high mechanical performance, etc.

Description

technical field [0001] The invention relates to a soluble edible corn starch composite packaging film and a preparation method thereof, belonging to the technical field of food packaging. Background technique [0002] As a soluble and edible packaging film, "glutinous rice paper" is still the main product for packaging such as candy on the market. Due to the brittleness of the film, it is easily soluble in water, which limits its use. In recent years, people have done a lot of work in the development of new soluble edible packaging materials. Some people use corn starch and potato starch as the main materials, supplemented by edible additives. In the inner packaging, although the tensile mechanical strength, toughness, transparency and instant solubility of the product are better than the "glutinous rice paper" used by food factories, it is still brittle and insufficient mechanical strength, so it cannot be used for automatic mechanical operati...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L3/02
Inventor 孔小荣郑正炯
Owner WUHAN UNIV
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