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Food-grade antioxidant preservative film

An anti-oxidant and cling film technology, which is applied in the field of food packaging material preparation, can solve the problems of high oxygen permeability and poor mechanical properties of cling film, and achieve the effects of inhibiting growth and reproduction, synergizing fresh-keeping effects, and improving mechanical properties

Inactive Publication Date: 2021-07-23
湖北联玉新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing cling film has relatively poor mechanical properties, high oxygen permeability, and the use effect is far worse than that of plastic packaging cling film.

Method used

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Effect test

Embodiment 1

[0021] A food-grade antioxidant fresh-keeping film, comprising the following raw material components in parts by weight: 200 parts of coconut shells, 60 parts of bean dregs, 60 parts of carrageenan, 10 parts of antioxidants, 7 parts of coupling agent KH-560, and 6 parts of glycerin , 5 parts of sucrose esters; the antioxidant is a mixture of tea polyphenols and phosphite in a mass ratio of 1:1.

[0022] The preparation method of described food-grade antioxidant preservative film, comprises the steps:

[0023] (1) Take 200 parts of fresh coconut shells according to the parts by weight, add 600 parts of water, beating, add 60 parts of bean dregs, continue beating, and make a mixed slurry;

[0024] (2) Add α-amylase and cellulase, and carry out enzymolysis at a temperature of 65°C for 4 hours; the added amount of the α-amylase accounts for 0.04wt% of the mixed slurry; 0.08% by weight;

[0025] (3) putting the enzymatic hydrolysis product described in step (2) into a stainless s...

Embodiment 2

[0028] A food-grade anti-oxidant preservative film, comprising the following raw material components in parts by weight: 150 parts of coconut shells, 55 parts of bean dregs, 45 parts of chitosan, 6 parts of antioxidants, 4 parts of coupling agent KH-570, sorbitol 4 parts, 3 parts of soybean lecithin; the antioxidant is a mixture of tea polyphenols and phosphite in a mass ratio of 1:1.

[0029] The preparation method of described food-grade antioxidant preservative film, comprises the steps:

[0030] (1) Take 150 parts of fresh coconut shells according to the parts by weight, add 500 parts of water, beating, add 55 parts of bean dregs, continue beating, and make a mixed slurry;

[0031] (2) Add α-amylase and cellulase, and carry out enzymolysis at a temperature of 60° C. for 3 hours; the addition of the α-amylase accounts for 0.03 wt% of the mixed slurry; 0.06% by weight;

[0032] (3) putting the enzymatic hydrolysis product described in step (2) into a stainless steel extrac...

Embodiment 3

[0035] A food-grade antioxidant fresh-keeping film, comprising the following raw material components in parts by weight: 300 parts of coconut shells, 80 parts of bean dregs, 80 parts of agar, 15 parts of antioxidants, 10 parts of coupling agent KH-590, and 10 parts of propylene glycol , 8 parts of Tween-20; the antioxidant is a mixture of tea polyphenols and phosphite in a mass ratio of 1:1.

[0036] The preparation method of described food-grade antioxidant preservative film, comprises the steps:

[0037] (1) Take 300 parts of fresh coconut shells according to the parts by weight, add 900 parts of water, beating, add 80 parts of bean dregs, continue beating, and make a mixed slurry;

[0038] (2) Add α-amylase and cellulase, and carry out enzymolysis at a temperature of 70°C for 2 hours; the added amount of the α-amylase accounts for 0.06wt% of the mixed slurry; 0.12% by weight;

[0039] (3) putting the enzymatic hydrolysis product described in step (2) into a stainless stee...

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Abstract

The invention discloses a food-grade antioxidant preservative film, which comprises the following raw material components in parts by weight: 100-300 parts of coconut shells, 50-80 parts of bean dregs, 40-80 parts of a film-forming agent, 5-15 parts of an antioxidant, 3-10 parts of a coupling agent, 2-10 parts of a plasticizer and 1-8 parts of an emulsifier. According to the food-grade antioxidant preservative film, coconut shells and bean dregs are adopted as main preparation raw materials, the mechanical property of the material is improved, the oxygen permeation rate is reduced, the antioxidant is a mixture formed by mixing tea polyphenol and phosphite ester, oxidative deterioration of grease in aquatic products is prevented, growth and reproduction of microorganisms are inhibited, and a synergistic effect is achieved on the fresh-keeping effect of the aquatic products.

Description

technical field [0001] The invention belongs to the technical field of preparation of food packaging materials, and in particular relates to a food-grade antioxidant fresh-keeping film. Background technique [0002] Traditional cling film is a kind of plastic packaging product, usually made of ethylene as the masterbatch through polymerization reaction, cling film can be divided into three categories: the first is polyethylene, referred to as PE; the second is polyvinyl chloride, referred to as PVC; the third is polyvinylidene chloride, referred to as PVDC. Plastic wrap is widely used in microwave oven food heating, refrigerator food preservation, fresh and cooked food packaging, etc., in family life, supermarket stores, hotels and restaurants, and food packaging in industrial production. [0003] Since the plastic wrap is a plastic packaging product, it will release harmful gases such as formaldehyde under conditions such as heating and long-term use, endangering people's ...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L5/00C08L5/08C08L1/28C08K5/1545C08K5/524C08J5/18
CPCC08J5/18C08J2397/02C08J2405/00C08J2405/08C08J2401/28C08K5/1545C08K5/524
Inventor 王树松王建松吴佶
Owner 湖北联玉新材料科技有限公司
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