Edible packaging film, and preparation method and application thereof

A packaging film and starch-based technology, applied in the field of packaging materials, can solve the problems of restricting large-scale production, mechanophysical methods are rarely reported, and high energy-consuming processes, so as to achieve low cost, solve energy and environmental problems, and improve the production process Reduced effect

Active Publication Date: 2019-03-08
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a good and adequate technique at laboratory scale, it is considered an energy-intensive process, limiting its large-scale production
In industrial production, people need high-level and high-efficiency preparation of starch-based composite films, such as melt extrusion, blow molding or injection molding and other processing techniques, but these mechanophysical methods are rarely reported

Method used

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  • Edible packaging film, and preparation method and application thereof
  • Edible packaging film, and preparation method and application thereof
  • Edible packaging film, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) First, mix 20 parts of edible glycerin, 10 parts of deionized water, 2 parts of ferulic acid, 2 parts of pullulan and 1 part of lemongrass oil at 40°C, and gradually add 65 parts of hydroxypropyl corn starch.

[0033] (2) Mix the hydroxypropyl starch mixture thoroughly in a constant temperature water bath at 70° C. for 1 hour at 500 rpm with an overhead stirrer to prepare a starch mixture, and put it into a sealed polyethylene plastic bag to balance for one day and one night.

[0034] (3) Hot press the balanced hydroxypropyl starch mixture. The hot pressing process is as follows: first stage: 130°C, 2MPa, 1min; second stage: 140°C, 4MPa, 5min, to prepare modified thermoplastic hydroxypropyl starch starch film.

Embodiment 2

[0036] (1) First, 20 parts of edible glycerin, 10 parts of deionized water, 2 parts of magnesium chloride, 2 parts of pullulan and 1 part of lemongrass oil were mixed at 40°C, and 65 parts of hydroxypropyl waxed cornstarch were gradually added.

[0037] (2) The hydroxypropyl starch mixture was thoroughly mixed with an overhead stirrer in a constant temperature water bath at 75° C. at 600 rpm for 2 hours to prepare a starch mixture, which was placed in a sealed polyethylene plastic bag to balance for one day and one night.

[0038](3) Hot press the balanced hydroxypropyl starch mixture. The hot pressing process is as follows: first stage: 140°C, 2MPa, 1min; second stage: 150°C, 4MPa, 6min, to prepare modified thermoplastic hydroxypropyl starch starch film.

Embodiment 3

[0040] (1) First, 10 parts of edible glycerin, 15 parts of deionized water, 2 parts of ferulic acid, 2 parts of glucomannan and 1 part of lemongrass oil were mixed at 40°C, and 70 parts of hydroxypropyl tapioca starch was gradually added.

[0041] (2) The hydroxypropyl starch mixture was thoroughly mixed with an overhead stirrer in a constant temperature water bath at 80° C. at 700 rpm for 3 hours to prepare a starch mixture, which was placed in a sealed polyethylene plastic bag to balance for a day and a night.

[0042] (3) Hot press the balanced hydroxypropyl starch mixture. The hot pressing process is as follows: first stage: 130°C, 2MPa, 2min; second stage: 150°C, 6MPa, 5min, to prepare modified thermoplastic hydroxypropyl starch starch film.

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Abstract

The invention discloses an edible packaging film, and a preparation method and application thereof, and belongs to the technical field of packaging materials. The edible starch-based packaging film comprises, by mass, 60-80 parts of hydroxypropyl starch, 15-20 parts of plasticizers, 5-15 parts of deionized water, 1-5 parts of crosslinking agents, 1-5 parts of reinforcing agents and 1-5 parts of antibacterial agents. The edible packaging film has the advantages that a hot pressing method is applied to prepare the edible starch-based packaging film, and the film has high mechanical property, flexibility and water vapor transmission rate, short water dissolution time and high oxygen permeability; the edible packaging film is made of water-soluble food and used as a packaging material for seasoning packages; the seasoning packages can be directly cooked together with other ingredients, so that traditional petroleum-based plastic packaging films are replaced, the ecological environment pollution is reduced, and demands of modern people for quickness and convenience in operation of fast food are met.

Description

technical field [0001] The invention relates to an edible packaging film and its preparation method and application, belonging to the technical field of packaging materials. Background technique [0002] With the improvement of residents' living standards and the acceleration of the pace of life, more and more consumers prefer high-quality, low-cost, simple and convenient food, such as cup noodles, wonton stew in barrels, cold noodles in barrels, and fresh food bags. Wait, it not only saves time, but also solves the problem that young people can't cook now. At present, the disposable packaging bags, cling film, and seasoning packets used by people are all made of petroleum and other resources as raw materials. However, petroleum-based packaging materials are not only resource-scarce and non-renewable, but also not easy to degrade in the natural environment, and the resulting "white pollution" environmental problem has become a major hidden danger that threatens the human li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/08C08L5/00C08L91/00C08K5/053C08J5/18B65D65/46
CPCB65D65/463C08J5/18C08J2303/08C08J2405/00C08K5/053Y02W90/10Y02A40/90
Inventor 龙柱陈杰
Owner JIANGNAN UNIV
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