Edible extracted konjaku flour composite food package film and preparation method thereof

A technology of food packaging film and konjac powder, which is applied in food preparation, packaging, wrapping paper, etc., can solve the problems of unsuitable automatic mechanical operation, waste environmental pollution, low strength, etc., and achieve low investment in production equipment, high transparency, high intensity effect

Inactive Publication Date: 2002-12-18
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it is not biodegradable, its waste can cause environmental pollution when it is used in large quantities; although the latter is an edible material with good taste, it has low strength, is brittle, and is not suitable for automatic mechanical operation, so it can only be used as a small food for manual packaging such as candy, chocolate, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: edible konjac fine powder composite food packaging film, its basic composition is: 5% konjac fine powder, 89.5% sodium alginate, 0.5% glycerin or ethylene glycol, 5% calcium chloride or citric acid calcium.

Embodiment 2

[0017] Embodiment 2: edible konjac fine powder composite food packaging film, its basic composition is: 50% konjac fine powder, 44.5% sodium alginate, 2.5% glycerol, 2.5% ethylene glycol, 0.5% calcium chloride or calcium citrate.

Embodiment 3

[0018] Embodiment 3: edible konjac fine powder composite food packaging film, its basic composition is: 80% konjac fine powder, 10% sodium alginate, 5% glycerin or ethylene glycol, 5% calcium chloride or citric acid calcium.

[0019] The above sodium alginate can be replaced by potassium alginate, calcium alginate or magnesium alginate.

[0020] The preparation method of the above-mentioned food packaging film is to mix konjac powder and alginate and add water to fully stir and knead at 40-50°C, then add plasticizer and continue stirring until a film glue without lumps is formed; use 160-200 The glue liquid is filtered by nylon filter cloth; the glue liquid is sprayed on the steel belt by pressure casting, and then sent into the water tank filled with curing agent for cross-linking and curing; the cured film is sent into a tank containing 45-80 % dehydrating agent ethanol solution in a water tank for dehydration and desalination; finally, heat and dry at 50-80°C, and roll the...

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PUM

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Abstract

The edible konjak flour composite food packaging film is formed from konjak flour, alginate, plasticizer and solidifying agent, and its production method includes the following steps: adding water into the mixture of konjak flour and alginate, mixing them, adding plasticizer to obtain colloidal paste liquor, adopting doctor-blade casting process tof rom film, then cross-linking, solidifying, dewatering and drying so as to obtain the invented required food packaging film with high transparency, high strength, water-proofing property and oil-fat resistance. Said packaging film has rich nutrients, and can be eaten.

Description

technical field [0001] The invention relates to an edible konjac powder composite food packaging film and a preparation method thereof. Background technique [0002] Traditional food packaging films are mainly food-grade polyethylene film and corn starch film. The former is a non-nutritious non-edible material. After packaging food, it is easy to produce harmful gas and odor. Because it is not biodegradable, its waste can cause environmental pollution when it is used in large quantities; although the latter is an edible material with good taste, it has low strength, is brittle, and is not suitable for automatic mechanical operation, so it can only be used as a small food for manual packaging Such as candy, chocolate and so on. Contents of the invention [0003] The present invention aims at the above problems and provides an edible konjac powder composite food packaging film suitable for automatic mechanical operation of food packaging and a preparation method thereof. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/15A23L29/244A23P10/20B65D65/46C08J5/18
Inventor 石米扬易吉萍郑正炯
Owner WUHAN UNIV
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