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Application of a pectin/pva-sbq composite film in flavor loading

A composite film and pectin technology, applied in the field of natural polymer film materials and photosensitive, can solve the problem of slow release of essence

Inactive Publication Date: 2020-09-01
SHANGHAI URBAN CONSTR VOCATIONAL COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Just imagine, if these two substances are selected as the film-forming matrix, and the essence is wrapped and loaded in the film structure, the SbQ group can undergo a cross-linking reaction under the induction of ultraviolet light, so that the internal network structure of the film becomes denser, and it can To a certain extent, the fixation or control of the fragrance compounds can be achieved, so that the release of the fragrance will become slow

Method used

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  • Application of a pectin/pva-sbq composite film in flavor loading

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) preparation mass fraction is 100ml of pectin aqueous solution of 4%, and preparation mass fraction is 100ml of PVA-SbQ aqueous solution of 2%;

[0015] (2) the aqueous pectin solution prepared in step (1) is mixed with the PVA-SbQ aqueous solution in step (1) in equal volumes to obtain 200ml of film-forming solution whose mass ratio of pectin and PVA-SbQ is 2:1;

[0016] (3) Dissolve 1g of essence in 20ml of absolute ethanol, add dropwise to 200ml of the film-forming solution in step (2) under stirring, and then perform UV exposure for 15min, then slowly place it on a glass plate for leveling, and put it in 40 The film was formed in an oven at ℃, and the film was taken out after 24 hours to obtain the pectin / PVA-SbQ composite film loaded with essence.

Embodiment 2

[0018] (1) preparation mass fraction is 100ml of pectin aqueous solution of 4%, and preparation mass fraction is 100ml of PVA-SbQ aqueous solution of 4%;

[0019] (2) the aqueous pectin solution prepared in step (1) and the PVA-SbQ aqueous solution in step (1) are mixed in equal volumes to obtain 200ml of film-forming solution whose mass ratio of pectin and PVA-SbQ is 1:1;

[0020] (3) Dissolve 1g of essence in 20ml of absolute ethanol, add dropwise to 200ml of the film-forming solution in step (2) under stirring, and then perform UV exposure for 15min, then slowly place it on a glass plate for leveling, and put it in 40 The film was formed in an oven at ℃, and the film was taken out after 24 hours to obtain the pectin / PVA-SbQ composite film loaded with essence.

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Abstract

The invention discloses a pectin / PVA-SbQ composite film and application thereof in carrying essence. SbQ groups in the composite film structure can be induced by ultraviolet light to carry out dimerization crosslinking reaction, so that essence can be wrapped inside, thus achieving a slow release effect.

Description

technical field [0001] The invention belongs to the field of natural polymer film material and photosensitive technology, and in particular relates to an application method of pectin / PVA-SbQ composite film in essence loading. Background technique [0002] Flavors and fragrances are widely used in food, cosmetics, and household products, such as food flavors, solid fresheners, etc. Essence is highly volatile and has a short retention time. Therefore, in recent years, many scientists have used polymer carriers to load the essence and control its release process. Such polymer carriers are also widely used, such as nano-colloidal particles and microcapsules. Polymer membrane is also a kind of polymer carrier. Pectin polysaccharide is a kind of polymer material, which exists in pomelo peel, has a wide range of sources, low cost, and has excellent film-forming properties and biocompatibility. [0003] Photosensitive polymers are a special kind of stimuli-responsive "smart" polyme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L29/04C08L5/06
CPCC08J5/18C08L5/06C08L29/04C08L2203/16
Inventor 张翠曲春波李博梅俊张金玲
Owner SHANGHAI URBAN CONSTR VOCATIONAL COLLEGE