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Preparation method of millet bran dietary fiber

A technology of dietary fiber and production method, applied in the field of grain processing, to achieve the effects of wide sources, improvement of sensory quality, change of molecular structure and palatability

Active Publication Date: 2011-06-15
GRAIN RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for making dietary fiber from rice bran, which effectively utilizes the precious dietary fiber in rice bran and solves the problem of comprehensive utilization of rice bran

Method used

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  • Preparation method of millet bran dietary fiber
  • Preparation method of millet bran dietary fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, the making of millet bran dietary fiber

[0035] (1) Screen 100Kg of millet bran to remove impurities, transfer it to a degreasing tank, add 3L (that is: millet bran:petroleum ether=1kg:3L) of petroleum ether, soak for 24 hours, remove the petroleum ether, take it out and let it air in the air Remove residual petroleum ether.

[0036] (2) Put the degreased millet bran in the above step (1) into an extraction tank, add 500Kg of 2.5mol / L NaOH, stir and extract at 40°C for 3 hours, rinse the alkali-extracted millet bran with tap water to pH The value was 8; then drench to remove the water.

[0037] (3) Next, add 1500 Kg of 0.2 mol / L HCl to the extraction tank, stir and extract at 60° C. for 0.5 h, and wash the acid-extracted millet bran with tap water until the pH value is 6. After leaching off the water, dry the millet bran under hot air at 80° C. until the water content is 8% (mass percentage), take it out and cool it naturally to obtain the dried millet ...

Embodiment 2

[0039] Embodiment 2, the making of millet bran dietary fiber

[0040] (1) Filter 100Kg of millet bran to remove impurities, transfer it to a degreasing tank, add 5L (that is: millet bran: petroleum ether = 1kg: 5L) petroleum ether, soak for 12 hours, remove the petroleum ether, and take it out for natural ventilation Dry to remove residual petroleum ether.

[0041] (2) Transfer the degreased millet bran into an extraction tank, add 1000Kg of 1.0mol / L NaOH, stir and extract at 50°C for 1.5h, rinse the alkali-extracted millet bran with tap water until the pH value is 8; Drain off the water.

[0042] (3) Next, add 1000 Kg of 1.0 mol / L HCl to the extraction tank, stir and extract at 50° C. for 1.5 h, and wash the acid-extracted millet bran with tap water until the pH value is 7. After leaching off the water, dry the millet bran with hot air at 100° C. until the water content is 7% (mass percentage), take it out and cool it naturally to obtain the dried millet bran.

[0043] (4)...

Embodiment 3

[0044] Embodiment 3, the making of millet bran dietary fiber

[0045](1) Screen 100Kg of millet bran to remove impurities, transfer it to a degreasing tank, add 6L (that is: millet bran:petroleum ether=1kg:6L) and soak in petroleum ether for 8h, after rinsing off the petroleum ether, take it out and remove it in the air with natural ventilation residual petroleum ether.

[0046] (2) Transfer the degreased millet bran into an extraction tank, add 1500Kg of 0.5mol / L NaOH, stir and extract at 60°C for 0.5h, rinse the alkali-extracted millet bran with tap water until the pH value is 7; Drain off the water.

[0047] (3) Next, add 500 Kg of 2.5 mol / L HCl to the extraction tank, stir and extract at 40°C for 3 hours, and wash the acid-extracted millet bran with tap water until the pH value is 7. After leaching off the water, dry the millet bran under hot air at 120° C. until the water content is 6% (mass percentage), take it out and cool it naturally to obtain the dried millet bran....

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Abstract

The invention relates to a preparation method of dietary fiber by taking millet bran as the material. The technical key points lie in that the invention takes millet bran as material to prepare millet bran dietary fiber product through the processes of screening, removing the impurities, degreasing, extracting through alkali liquor, rinsing, extracting through acid liquor, rinsing, drying and finally superfine pulverizing. The invention adopts combined chemical and physical methods to prepare the millet bran dietary fiber, and particularly through the superfine pulverizing technique, the invention changes the molecular structure and the palatability of the millet bran dietary fiber and makes the millet bran dietary fiber easier to be accepted by people, thus providing a feasible approach for deep processing and comprehensive utilization of the millet bran. The millet bran dietary fiber prepared through the method has good functions of reducing weight, defaecating, regulating blood sugar level and reducing blood fat and the like. The millet bran dietary fiber can not only be used as dietary fiber nutrition enhancer for various foods but also be prepared to be capsules or pills to be directly taken by people so as to supplement the essential dietary fiber of the body.

Description

technical field [0001] The invention belongs to the technical field of grain processing, in particular, the invention relates to a method for producing dietary fiber from millet bran. technical background [0002] With the development of the economy, great changes have taken place in the dietary structure of Chinese residents. "Diseases of civilization" caused by unbalanced diet or overnutrition have appeared in our country. Obesity, high blood pressure, coronary heart disease and colon cancer have become The main diseases that endanger the health of our people are mostly related to insufficient dietary fiber intake. With its special physiological functions, dietary fiber can regulate the physiological functions of the human body, so as to achieve the purpose of improving human health. [0003] Millet is one of the main miscellaneous grain crops in my country. It is rich in nutrition and has the reputation of being the first of all grains. Millet bran is a by-product of mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/28A23L1/308A23L31/00A23L33/22
Inventor 张玉宗刘敬科赵巍
Owner GRAIN RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
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