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Water insoluble dietary fiber prepared from red alga plant gracilaria agar residue and preparation method thereof

A dietary fiber and water-insoluble technology, applied in the field of dietary fiber preparation, can solve the problems of less research and achieve the effect of simple process and suitable for promotion

Inactive Publication Date: 2012-06-20
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic research on seaweed dietary fiber and research on terrestrial plant resources are relatively few

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Process flow of the method for preparing water-insoluble dietary fiber from the residue of Gracilaria agar processing

[0020] Add water 30 times of its dry weight to the dry weight of the red algal plant Gracilaria agar residue, stir and let it stand, then collect the Gracilaria agar residue, dry it for later use; add the obtained dry Gracilaria agar residue to 0.01mol / L hydrochloric acid solution, add The ratio is the weight (g) of dry Gracilaria agar residue to the volume (ml) of the acid solution is 1:20, the obtained liquid is refluxed and stirred at 55°C for 2 hours, cooled to room temperature naturally, filtered by a centrifuge to remove the water-soluble dietary fiber Gracilaria agar residue, standby; the concentration of 5% H was added to the obtained Gracilaria agar residue 2 o 2 Solution, the ratio of adding is Gracilaria agar residue weight (g) and H 2 o 2 The solution volume (ml) ratio is 1:15, stirred and bleached at 80°C for 2 hours, and the water-...

Embodiment 2

[0022] Process flow of the method for preparing water-insoluble dietary fiber from the residue of Gracilaria agar processing

[0023]Add water 30 times its dry weight to the dry weight of the red algae plant Gracilaria agar residue, stir and let it stand, then collect the Gracilaria agar residue, dry it for later use; add 0.02mol / L sulfuric acid solution to the obtained dried Gracilaria agar residue, and the ratio The ratio of dry Gracilaria agar residue weight (g) to acid solution volume (ml) is 1:20, the obtained liquid is refluxed and stirred at 57.5°C for 2.5 hours, naturally cooled to room temperature, and filtered by a centrifuge to obtain water-soluble dietary fiber. Gracilaria agar residue, for subsequent use; Add concentration of 5% H to the obtained Gracilaria agar residue 2 o 2 Solution, the ratio of adding is Gracilaria agar residue weight (g) and H 2 o 2 The solution volume (ml) ratio is 1:15, stirred and bleached at 85°C for 3 hours, and the bleached water...

Embodiment 3

[0025] Process flow of the method for preparing water-insoluble dietary fiber from the residue of Gracilaria agar processing

[0026] Add water 30 times its dry weight to the dry weight of the red algal plant Gracilaria agar residue, stir and let it stand, then collect the Gracilaria agar residue, dry it for later use; add the obtained dry Gracilaria agar residue to 0.10mol / L acetic acid solution, the ratio of adding The ratio of dry Gracilaria agar residue weight (g) to acid solution volume (ml) is 1:20, the obtained liquid is refluxed and stirred at 60°C for 3 hours, naturally cooled to room temperature, and filtered by a centrifuge to obtain water-soluble dietary fiber. Gracilaria agar residue, for subsequent use; Add concentration of 5% H to the obtained Gracilaria agar residue 2 o 2 Solution, the ratio of adding is Gracilaria agar residue weight (g) and H 2 o 2 The solution volume (ml) ratio is 1:15, stirred and bleached at 90°C for 4 hours, and the bleached water-...

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Abstract

The invention relates to a water insoluble dietary fiber prepared from red alga plant gracilaria agar residue and a preparation method thereof. The water insoluble dietary fiber is prepared from residue obtained by processing red alga plant gracilaria agar as a raw material through the procedures of washing treatment and acid treatment, bleaching treatment, drying and pulverizing on water soluble dietary fiber. The water insoluble dietary fiber has powdery appearance and light yellow color, the water holding capacity is 4.325, and the expansion force is 3.93 ml / g. The preparation method has short reaction time, simple and practical technology and low investment and quick effect taking in actual production and is applicable to popularization and application.

Description

technical field [0001] The invention relates to a water-insoluble dietary fiber prepared from gracilaria agar residue and a preparation method thereof, in particular to a water-insoluble dietary fiber prepared from red alga plant gracilola agar residue and a preparation method thereof, belonging to the technical field of dietary fiber preparation. Background technique [0002] Dietary fiber (Dietary Fiber, DF) is defined as "the sum of edible plant cells, polysaccharides, lignin and related substances that cannot be digested and absorbed by human endogenous enzymes", and in some cases, those that cannot be digested by the human body Absorbed components with less content in plants, such as glycoproteins, cutin, waxes and polyphenolic fats, are also included in the broad range of dietary fiber. Dietary fiber was developed along with the research on the reasons why "civilized diseases" such as hyperlipidemia, high blood pressure, arteriosclerosis, diabetes, constipation and col...

Claims

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Application Information

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IPC IPC(8): A23L1/337A23L1/308A23L17/60
Inventor 郝晓敏谷长生杨磊李思东宋文东
Owner GUANGDONG OCEAN UNIVERSITY
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