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Edible food packaging film and preparation method and application thereof

A technology of food packaging film and edible properties, which is applied in the field of edible food packaging film, can solve the problems of low polarity and low strength, and achieve the effects of enhancing mechanical properties and heat resistance, improving usability, and enhancing liking

Active Publication Date: 2018-12-11
深圳市绿源兴环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Microbial copolyesters have low polarity, and the molecules often form a dense network structure with strong water blocking ability. However, because the strength of lipid film formation alone is low, some other substances are usually added for modification. , made of composite edible packaging film

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation of embodiment 1 edible food packaging film

[0025] Ingredients: 50 parts of polyhydroxyalkanoate, 30 parts of pullulan, 30 parts of modified pea protein isolate, 20 parts of cinnamon phenol, 20 parts of carvacrol, 10 parts of peppermint oil, 5 parts of glycerin, lauryl 1 part of calcium benzenesulfonate, 1 part of propylene glycol alginate, 100 parts of deionized water;

[0026] Preparation of modified pea protein isolate:

[0027] Dissolve pea protein isolate in phosphate buffer, stir well, add tri(dodecyl alcohol) ester and tri(hexadecanyl alcohol) ester and dithiothreitol, then add polyethylene glycol monomethyl ether, and keep at room temperature After reacting for 3 hours, add NaOH solution to adjust the pH to 7, put it into a dialysis bag with a molecular weight cut-off of 12000D-15000D for dialysis, freeze-dry the product, wash the obtained powder with ethanol for 3 times, and dry it at room temperature to obtain, with a yield of 70 %.

[0028...

Embodiment 2

[0031] The preparation of embodiment 2 edible food packaging films

[0032] Ingredients: 70 parts of polyhydroxyalkanoate, 50 parts of pullulan, 40 parts of modified pea protein isolate, 30 parts of cinnamon, 30 parts of carvacrol, 10 parts of rose oil, 10 parts of lemon oil, 10 parts of glycerin , 5 parts of sodium alkylbenzene sulfonate, 10 parts of propylene glycol alginate, 140 parts of deionized water;

[0033] Preparation of modified pea protein isolate:

[0034] Dissolve pea protein isolate in phosphate buffer, stir well, add vitamin C and dithiothreitol, then add polyethylene glycol monomethyl ether, react at room temperature for 3 hours, add NaOH solution to adjust the pH to 8, and put it into the intercepted Carry out dialysis in a dialysis bag with a molecular weight of 12000D-15000D, freeze-dry the product, wash the obtained powder three times with ethanol, and dry it at room temperature to obtain the obtained product with a yield of 82%.

[0035] Preparation of ...

Embodiment 3

[0038] The preparation of embodiment 3 edible food packaging films

[0039] Composition of raw materials: 60 parts of polyhydroxyalkanoate, 40 parts of pullulan polysaccharide, 40 parts of modified pea protein isolate, 25 parts of cinnamon phenol, 23 parts of carvacrol, 15 parts of clove oil, 7 parts of glycerin, N-12 3 parts of alkyl dimethylamine, 5 parts of propylene glycol alginate, 120 parts of deionized water;

[0040] Preparation of modified pea protein isolate:

[0041] Dissolve pea protein isolate in phosphate buffer, stir well, add butylated hydroxyanisole and dithiothreitol, then add polyethylene glycol monomethyl ether, react at room temperature for 3 hours, add NaOH solution to adjust the pH to 7.5 , put it into a dialysis bag with a molecular weight cut-off of 12000D-15000D for dialysis, freeze-dry the product, wash the obtained powder three times with ethanol, and dry it at room temperature to obtain the product with a yield of 90%.

[0042] Preparation of Edibl...

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Abstract

The invention provides an edible food packaging film which is prepared from the following raw materials in parts by weight: 50-70 parts of polyhydroxyalkanoate, 30-50 parts of Pulullan, 30-50 parts ofmodified pea protein isolate, 20-30 parts of cinnamon phenol, 20-30 parts of carvacrol, 10-20 parts of plant essential oil, 5-10 parts of glycerinum, 1-5 parts of an emulsifier, 1-10 parts of propylene glycol alginate and 100-140 parts of deionized water. The edible food packaging film prepared by the invention is a microbial copolymerized ester, can be degraded and eaten, and has a relatively good water and oxygen-resistant ability. By adding the modified pea protein isolate, the mechanical property and heat resistance of a film material are enhanced, and the edible food packaging film is wide in application.

Description

technical field [0001] The invention relates to the technical field of packaging films, in particular to an edible food packaging film. Background technique [0002] At present, food packaging is mostly made of ordinary plastic simple packaging, which is not hygienic, has poor sealing performance and no heat insulation, and damages the packaging film to reflect the beauty of the overall shape of the printing. , Poor sealing, short shelf life and other reasons, the packaging film often sticks to food, and it is difficult to open and eat, which is not satisfactory. In addition, in order to achieve various effects during the processing of most food packaging materials, various processing aids are often added, including plasticizers, stabilizers, antibacterial agents, cross-linking agents, etc. Food safety has caused more and more people The previous events such as the detection of plasticizers in beverage bottles and the detection of fluorescent agents in instant noodle packag...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L5/00C08L89/00C08L5/04C08L91/00C08J5/18
CPCC08J5/18C08J2367/04C08J2405/00C08J2405/04C08J2489/00C08J2491/00
Inventor 高正春
Owner 深圳市绿源兴环保科技有限公司
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