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Composite gel made from modified rose dreg dietary fibers

A technology of rose dregs and dietary fiber is applied in the field of rose dregs-modified dietary fiber composite gel and its preparation, which can solve problems such as blank research, improve the degree of cross-linking, strengthen the regulation of intestinal flora, Good taste effect

Active Publication Date: 2018-11-02
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention finds that the content of dietary fiber in rose dregs is rich, but the research on rose dregs dietary fiber (RPDF) is still blank

Method used

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  • Composite gel made from modified rose dreg dietary fibers
  • Composite gel made from modified rose dreg dietary fibers
  • Composite gel made from modified rose dreg dietary fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 A kind of preparation method of rose dregs modified dietary fiber

[0036] The preparation method is as follows:

[0037] (1) Pretreatment: pulverize after the rose dregs are dried;

[0038] (2) Preparation of rose dregs suspension: add 30 times (w / w) water to the rose dregs powder, and adjust the pH to 7.0;

[0039] (3) Enzymolysis: Add 200U of high-temperature-resistant amylase per gram of rose dregs powder, stir at 85°C for 30 minutes; then cool down to 50°C, add 6000U of protease per gram of rose dregs powder, and stir for 30 minutes for enzymolysis ; then adjust the pH of the suspension to 5.0 with 0.5mol / L hydrochloric acid, add 100U amyloglucosidase per gram of rose residue powder, and stir for 30 minutes for enzymolysis; add 250U cellulase and 700U wood Glycanase enzymatic hydrolysis for 2 hours modification;

[0040] (4) Separation: the suspension after enzymolysis was centrifuged at 5500r / min for 15min at 4°C, the precipitate was washed with wa...

Embodiment 2

[0049] Embodiment 2 A kind of composite hydrogel comprising rose pomace modified dietary fiber and gelatin

[0050] A composite hydrogel comprising rose dregs modified dietary fiber and gelatin, the content of the rose dregs modified dietary fiber is 0.67% (w / w, mass ratio with water), and the content of the gelatin is 6.67% (w / w, mass ratio to water);

[0051] The gelatin is fully soaked in water and dissolved under heat insulation to prepare a 6.67% (w / w) gelatin solution; adding 0.67% (w / w) rose dregs modified dietary fiber; using a magnetic stirrer to modify the rose dregs The dietary fiber-gelatin suspension is mixed evenly, poured into a container to cool, and stored at 4°C overnight to obtain a solid rose residue modified dietary fiber-gelatin hydrogel;

[0052] The preparation method of described rose dregs modified dietary fiber is as follows:

[0053] (1) Pretreatment: pulverize after the rose dregs are dried;

[0054] (2) Preparation of rose dregs suspension: add 2...

Embodiment 3

[0059] Embodiment 3 A kind of composite hydrogel comprising rose pomace modified dietary fiber and gelatin

[0060] A composite hydrogel comprising rose dregs modified dietary fiber and gelatin, the content of the rose dregs modified dietary fiber is 0.1% (w / w), and the content of the gelatin is 5% (w / w );

[0061] The preparation method is as follows:

[0062] The gelatin is fully soaked in water and dissolved under heat insulation to prepare a 5% (w / w) gelatin solution; adding 0.1% (w / w) rose dregs modified dietary fiber; using a magnetic stirrer to modify the rose dregs The dietary fiber-gelatin suspension is mixed evenly, poured into a container to cool, and stored at 4°C overnight to obtain a solid rose residue modified dietary fiber-gelatin hydrogel;

[0063] The preparation method of described rose dregs modified dietary fiber is as follows:

[0064] (1) Pretreatment: pulverize after the rose dregs are dried;

[0065] (2) Preparation of rose dregs suspension: add 30...

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Abstract

The invention belongs to the technical field of food processing and safety, and particularly relates to composite gel made from modified rose dreg dietary fibers and a preparation method of the composite gel. The composite gel comprises modified rose dreg dietary fibers and gelatin, wherein the content of the modified rose dreg dietary fibers is 0.1-2%, and the content of the gelatin is 5-10%. Themethod creatively uses rose dregs as the source of dietary fibers, and the dietary fibers can be used for preparing the composite gel after being modified. The composite gel has appropriate hardness,elasticity and taste, and can be used as a raw material or an auxiliary material of foods with certain processing intensity.

Description

Technical field: [0001] The invention belongs to the technical field of food processing and safety, and in particular relates to a rose residue modified dietary fiber composite gel and a preparation method thereof. Background technique: [0002] Roses are mainly used to extract rose essential oil in industrial production, and the low extraction rate (0.25‰-0.3‰) results in a high waste situation. At present, the deep processing of roses is still very limited. Except for a part of the flower dregs after extracting essential oils, they are naturally air-dried and used as fuel, and most of them are simply treated as waste. It not only harms the environment, but also causes a waste of resources. Therefore, the reuse of flower residue after essential oil extraction has become an innovative direction in rose research. [0003] Through the research of the present invention, it is found that the dietary fiber content in the rose dregs is rich, but the current research on the rose ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L29/281A23L33/22A23L29/00
CPCA23L29/06A23L29/284A23L33/22A23V2002/00A23V2200/30A23V2200/32
Inventor 任迪峰何媛媛李文
Owner BEIJING FORESTRY UNIVERSITY
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