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Extraction of multifunctional diet fibre from wheat bran

A technology for dietary fiber and wheat bran, applied in food preparation, food science, application and other directions, can solve the problems of no removal effect, long removal time of phytic acid, impact on economic benefits, etc., and achieves simplified operation and time. Short, improve the effect of storage time

Inactive Publication Date: 2007-12-12
上海天之冠可再生能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The phytic acid removal time in the patent of Baile Mai Food Co., Ltd. is relatively long, which takes 5 to 6 hours, and no specific removal effect is given.
And the patent application number of Wuhan Institute of Technology is 200510019123.0 "A method for preparing wheat bran dietary fiber powder by multi-enzyme step-by-step method" discloses that 2-12 Hours, the use of bran endogenous enzymes to remove phytic acid has a better effect, but the temperature is higher and the time is longer, which affects economic benefits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preliminary screening to remove impurities: take 200g of raw material bran for preliminary screening to remove some impurities;

[0030] Washing: Take 1200g water to stir and wash the bran for 20 minutes, then filter with double-layer gauze to get the filter residue, add 1200g water to stir and wash for 20 minutes, and filter; wash four times in total, and the water temperature is controlled at 5-40°C; the first batch of materials After three times of washing liquid is filtered and centrifuged, it is used as water for the first washing of another batch of materials;

[0031] Acid treatment: wash the bran with water, add 10 times deionized water, adjust the pH value of the control system to 4 with dilute hydrochloric acid at 55°C, stir and wash for 30 minutes, stop adding acid, keep warm and continue to stir and wash for 30 minutes;

[0032] Filtration, neutralization, washing, drying;

[0033] Pulverization: pulverize the acid-treated bran and pass through a 250-mesh s...

Embodiment 2

[0036] Preliminary screening to remove impurities: take 200g of raw material bran for preliminary screening to remove some impurities;

[0037] Washing: Take 1400g water to stir and wash the bran for 15 minutes, then filter with double-layer gauze. Take the filter residue, add 1200g water to stir and wash for 15 minutes, and filter; wash five times in total, and the water temperature is controlled at 5-40°C;

[0038] Acid treatment: wash the bran with water, add 11 times deionized water, adjust the pH value of the control system to 4.5 with dilute sulfuric acid at 50°C, stir and wash for 35 minutes, stop adding acid, keep warm and continue to stir and wash for 30 minutes;

[0039] Filtration, neutralization, washing, drying;

[0040] Pulverization: pulverize the acid-treated bran and pass through a 120-mesh sieve plate.

[0041] The product yield is about 43%.

Embodiment 3

[0043] Preliminary screening to remove impurities: take 200g of raw material bran for preliminary screening to remove some impurities;

[0044] Washing: Take 1300g water to stir and wash the bran for 25 minutes, then filter with double-layer gauze. Take the filter residue, add 1300g water to stir and wash for 25 minutes, and filter; wash three times in total, and the water temperature is controlled at 5-40°C; After the third washing liquid is filtered and centrifuged, it is used as water for the first washing of another batch of materials;

[0045] Acid treatment: wash the bran with water, add 12 times deionized water, adjust the pH value of the control system to 5 with dilute acetic acid at 45°C, stir and wash for 40 minutes, stop adding acid, keep warm and continue to stir and wash for 35 minutes;

[0046] Filtration, neutralization, washing, drying;

[0047] Pulverization: pulverize the acid-treated bran and pass through a 120-mesh sieve plate.

[0048] The product yield ...

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PUM

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Abstract

A process for extracting multifunctional edible fibers from wheat bran includes such steps as sieving bran for removing impurities, washing with water multiple times for removing starch, washing while stirring, filtering by dual-layer gauze, washing while stirring, filtering, acid treating for removing phytic acid, water washing, regulating pH=3.5-5, washing while stirring, stirring, filtering, neutralizing, washing, drying and pulverizing. It has high content of protein.

Description

technical field [0001] The invention relates to a method for extracting multifunctional dietary fiber from wheat bran. Background technique [0002] The main component of wheat bran dietary fiber is insoluble dietary fiber, which is rich in content, close to 40%. It is widely used in the fields of noodle products, meat, health products, etc., and has the characteristics of outstanding water holding capacity, low energy, strong adsorption capacity, and bifidobacteria proliferation. Because of its safety and reliability, it has been used in the food industry for a long time. Due to its poor taste, it may affect the utilization of minerals by the human body, and its application range has been limited. [0003] Existing technology is to adopt high-temperature cooking, add amylase to realize the removal of starch, and the process of removing starch is more complicated, such as the patent application number of Baile Mai Food Co., Ltd. is 200410006552.x "multifunctional transform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/308A23L1/10A23L33/22
Inventor 徐志剑杜风光史吉平闫德冉董青山
Owner 上海天之冠可再生能源有限公司
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