Edible packaging film taking corn dietary fibre as matrix and preparation method thereof

A dietary fiber and packaging film technology, applied in packaging, wrapping paper, transportation and packaging, etc., can solve the problems of difficult to meet the needs of food packaging, white pollution, easy to be damaged by moisture, dissolution, etc., and achieve excellent mechanical properties and barrier properties Good results

Inactive Publication Date: 2013-01-23
SHENYANG CHUANGDA TECH TRADE MARKET
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Plastic packaging film is widely used, but it is easy to produce harmful gas and peculiar smell; and plastic packaging film is not easy to decompose, causing "white pollution" and causing environmental pollution
Foods packaged in glutinous rice paper packaging film are edible, but their strength is poor, and they are easily damaged and dissolved by moisture when exposed to water. They are not suitable for automatic food packaging machinery operations, and it is still difficult to meet the needs of food packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] An edible packaging film with corn dietary fiber as a matrix and a preparation method thereof, the process steps are:

[0019] 2) Crushing: Put the corn into a pulverizer for crushing, and pass through a 50-100 mesh sieve to obtain corn granules;

[0020] 2) Dissolution: Dissolve corn grains in water at a ratio of 1:6~8, stir well, and adjust the pH value to 11~12 with 5% sodium hydroxide solution;

[0021] 3) Heating: Heat the adjusted solution to 50°C, heat at constant temperature for 5-10 minutes, heat to 70°C, keep warm for 30-60 minutes, and cool to 30-35°C;

[0022] 4) Enzymolysis: adjust the pH value of the heated solution to 6~6.5 with acidic substances, add Bacillus subtilis neutral protease with a weight ratio of 1%~2%, keep stirring and keep warm for 2~3 hours;

[0023] 5) Superfine pulverization: Use a superfine pulverizer to pulverize the extracted corn dietary fiber for 30-40 minutes; pass through a 120-150 mesh sieve and collect;

[0024] 6) Stirrin...

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PUM

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Abstract

The invention relates to a food packaging film and a preparation method of the food packaging film, in particular to an edible packaging film taking corn dietary fibre as a matrix and a preparation method of the edible packaging film, belonging to the field of food package. The food packaging film provided by the invention has good barrier property and excellent mechanical property, can be used for preparing internal packaging materials of all foods, cannot change appearance and flavour of food and can be eaten with food, and cannot produce harmful gas and odours as well as cause ''white pollution'' and environmental pollution.

Description

[0001] technical field [0002] The invention relates to a food packaging film and a preparation method thereof, in particular to an edible packaging film with corn dietary fiber as a matrix and a preparation method thereof, belonging to the field of food packaging. Background technique [0003] The preservation of food depends on the packaging of the food and its barrier to the outside world. Plastic packaging film is widely used, but it is easy to produce harmful gas and peculiar smell; and plastic packaging film is not easy to decompose, causing "white pollution" and causing environmental pollution. Although the food packaged in glutinous rice paper packaging film is edible, its strength is poor, and it is easily damaged by moisture and dissolved in water, and it is not suitable for automatic food packaging machinery operation, and it is still difficult to meet the needs of food packaging. Contents of the invention [0004] In view of the problems in the prior art, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L5/00C08L1/26C08L5/04C08L91/06C08K5/053B65D65/46
Inventor 刘涛
Owner SHENYANG CHUANGDA TECH TRADE MARKET
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