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A kind of edible packaging film based on pomelo peel and preparation method thereof

A technology of grapefruit peel and packaging film, applied in the field of edible packaging film based on grapefruit peel and its preparation, can solve the problems of waste grapefruit peel, etc., and achieve the effect of simple preparation process, easy large-scale application, and excellent oxygen barrier performance

Active Publication Date: 2018-06-08
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the prior art, one of the purposes of the present invention is to provide a method for preparing an edible packaging film based on grapefruit peel. The packaging film prepared by this method not only has good mechanical properties and strong barrier properties, but also has degradable properties. Non-toxic, solves the problems caused by plastic packaging materials, and also solves the environmental problems caused by discarded pomelo peels

Method used

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  • A kind of edible packaging film based on pomelo peel and preparation method thereof
  • A kind of edible packaging film based on pomelo peel and preparation method thereof
  • A kind of edible packaging film based on pomelo peel and preparation method thereof

Examples

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Effect test

Embodiment 1

[0034] The edible packaging film based on grapefruit peel is composed of 10% grapefruit peel and 90% water; the film slurry is made, glycerin is 0.1% of the film slurry, and the amount of sodium alginate added is product 1: 0.2%, Product 2: 0.3%, Product 3: 0.4%, Product 4: 0.5%, Product 5: 0.6%, Product 6: 0.7%.

[0035] (1) Choose fresh pomelo peel and cut it into 1.5×1.5cm cubes, blanching with 2% sodium bicarbonate solution at 100℃ for 1min, pick up, rinse with cold water, and drain;

[0036] (2) According to the ratio of pomelo peel: distilled water=1:9, put it into the beater for beating for 8.5min to make film slurry;

[0037] (3) Add 0.1% glycerin and different concentrations of sodium alginate to the membrane slurry, and homogenize for 15 minutes at a homogenization speed of 15000r / min to make the slurry fine and uniform;

[0038] (4) Degas for 40 minutes when the vacuum degree is -0.095MPa, and pour out the membrane slurry;

[0039] (5) Use 350ml of film slurry to ...

Embodiment 2

[0041] Edible packaging film based on grapefruit peel, its component is grapefruit peel 30% (W / W), water 70% (W / W); Make film slurry, sorbitol is 0.5% of the quality of film slurry , the sodium carboxymethyl cellulose addition is 0.7% of the film slurry quality, and the preparation method is the same as in Example 1.

Embodiment 3

[0043] Edible packaging film based on grapefruit peel, its components are 15% grapefruit peel, 85% water; the film slurry is made, glycerin is 0.1% of the mass of the film slurry, and sodium alginate is added in an amount of Membrane slurry 0.5%, preparation method is the same as embodiment 1.

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Abstract

The present invention provides a preparation method of a shaddock-peel-based edible packaging film, the method comprises the following steps: 1) washing and cutting shaddock peel; 2) blanching; 3) adding water, and beating to obtain shaddock-peel slurry; 4) adding a thickening agent and a plasticizer into the shaddock-peel slurry obtained by the step 3); 5) homogenizing, degassing and standing to obtain molded pulp; and 6) flow-casting, drying, and removing a film to obtain the shaddock-peel-based edible packaging film; wherein mass ratio of material obtained by the step 2) to water is 10 to 30: 100; the mass ratio of thickening agent to shaddock-peel slurry is 0.2 to 0.7: 100, and the mass ratio of plasticizer to shaddock-peel slurry is 0.05 to 0.5: 100; the thickening agent is sodium alginate or carboxymethyl cellulose sodium, and the plasticizer is glycerol or sorbitol; the homogenization rate is 15000-20000 r / min, and the processing time is 10-15 min; and the present invention also provides the packaging film prepared by the preparation method.

Description

technical field [0001] The invention belongs to the technical field of food engineering, and in particular relates to an edible packaging film based on pomelo peel and a preparation method thereof. technical background [0002] At present, plastic packaging materials are widely used in food packaging and fresh-keeping due to their cheap price and stable properties. However, these plastic packages are difficult to degrade and easily cause "white pollution" after being discarded, which poses a serious threat to the environment. In addition, some plastic packaging is prone to harmful gases and odors, which have certain toxic and side effects on the human body. In recent years, with the enhancement of people's awareness of environmental protection and the increasing emphasis on food safety, edible packaging film has been used to replace plastic packaging to reduce the impact on the contents and environmental pollution, and to exert its better comprehensive performance. A new t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L1/28C08L5/04C08K5/053C08J5/18
CPCC08J5/18C08J2397/02C08J2401/28C08J2405/04C08L97/02C08L2201/06C08L2201/14C08L5/04C08K5/053C08L1/286
Inventor 吴贺君董知韵路萍林德荣刘韫滔刘耀文叶劲松胡彪李伟彭巧梅
Owner SICHUAN AGRI UNIV