Method for preparing nutrition enrichment type bread by using ultra-fine defatted rice bran

A defatted rice bran and nutrient-enhanced technology, which is applied in the field of nutrient-enhanced bread preparation, can solve problems such as difficulty in being digested and absorbed by the human body, poor sensory properties and taste, rough rice bran fibers, etc., and achieve easy large-scale and automated production and improved physical properties , volatile effect

Inactive Publication Date: 2011-07-06
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the application of rice bran in food is limited to the amount of addition. Due to the strong toughness of rice bran fiber and rough taste, with the increase of the addition ratio, the volume and specific volume of bread show a relatively obvious decreasing trend, and the sensory properties, especially the taste, become worse. , the baking quality gradually deteriorates, and the finished bread is difficult to be digested and absorbed by the human body due to the rough rice bran fiber
[0004] At present, there is no report on adding ultra-fine defatted rice bran, calcium lactate, and zinc lactate to bread flour

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of the nutrient-enhanced bread of ultra-fine defatted rice bran comprises the following steps:

[0027] (1) Raw material source: choose fresh rice bran.

[0028] (2) Cleaning: Remove the broken rice and other sundries in the rice bran by winnowing and screening.

[0029] (3) Stabilization treatment: Put the rice bran in a microwave oven with a power of 750W and irradiate for 3 minutes.

[0030] (4) Degreasing: Extract rice bran and absolute ethanol at a material ratio of 1:6 for 1.5 h at a temperature of 50°C.

[0031] (5) Drying: Put the degreased rice bran into a tray, spread it into a uniform thin layer, and dry it with hot air in an oven at 95°C for 50 minutes.

[0032] (6) Coarse pulverization: pulverize the dried defatted rice bran with a pulverizer until the particle size is 60 mesh.

[0033] (7) Superfine pulverization: the defatted rice bran after the coarse pulverization is pulverized with an airflow mill, and the median diameter is d...

Embodiment 2

[0036] (3) Stabilization treatment: Put the rice bran into a microwave oven with a power of 750W and irradiate for 2 minutes.

[0037] (4) Degreasing: The rice bran and absolute ethanol were leached for 2.0 h at a material ratio of 1:7, and the leaching temperature was 55°C.

[0038] (5) Drying: Put the degreased rice bran into a tray, spread it into a uniform thin layer, and dry it with hot air in an oven at 100°C for 40 minutes.

[0039] (8) Bread making: Add 6g of ultra-fine defatted rice bran, 0.9g of calcium lactate, and 0.02g of zinc lactate into 100g of bread flour and mix well, and then make bread according to the general bread preparation method.

[0040] Other steps are with embodiment 1.

Embodiment 3

[0042] (4) Degreasing: extract rice bran and absolute ethanol at a material ratio of 1:8 for 2.5 hours, and the extraction temperature is 60°C.

[0043] (5) Drying: Put the degreased rice bran into a tray, spread it into a uniform thin layer, and dry it with hot air in an oven at 105°C for 30 minutes.

[0044] (8) Bread making: Add 8 g of ultra-fine defatted rice bran, 1.0 g of calcium lactate, and 0.025 g of zinc lactate into 100 g of bread flour and mix well, and then make bread according to the general bread preparation method.

[0045] Other steps are with embodiment 1.

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Abstract

The invention relates to a method for preparing a piece of nutrition enrichment type bread by using ultra-fine defatted rice bran. The method comprises the following steps: firstly, selecting the fresh rice bran; secondly, cleaning and removing sundries; thirdly, processing the cleaned rice bran stably by microwave; fourthly, defatting the rice bran; fifthly, drying the defatted rice bran; sixthly, coarsely crushing the defatted rice bran into defatted rice bran coarse powder with 60 meshes; seventhly, crushing the defatted rice bran coarse powder in an ultrafine way into defatted rice bran with d50 below 1mum, and eighthly, preparing the bread: adding 4g-10g of the ultra-fine defatted rice bran, 0.8g-1.2g of calcium lactate, 0.02g-0.025g of zinc lactate into 100g of bread powder and mixing uniformly, and then preparing the bread according to the common method for preparing bread. The prepared bread is good in quality, does not have peculiar smell, and is soft and elastic. The prepared nutrition enrichment type bread is rich in nutrition and delicious, can effectively supplement dietary fiber, calcium, zinc, vitamin and other nutrient substances needed by a human body, and particularly has a good health-care function to the crowds which are in middle and old age and easy to lose calcium and zinc.

Description

technical field [0001] The invention belongs to the technical field of preparation of food bread, and in particular relates to a preparation method of nutrition-enhanced bread with ultra-fine particle size defatted rice bran. Background technique [0002] my country is the main country that grows rice in the world. The yield of rice is very high, and rice bran is a by-product obtained from the process of rice processing and milling. Although rice bran only accounts for 6% to 8% of the mass of rice, it contains the main nutrients in rice. It is known as the "treasure house of natural nutrition"; it is rich in dietary fiber, and the content of dietary fiber after degreasing can reach 30% to 50%. In addition, it also contains protein, fat, vitamins and other nutrients, which has high nutrition. value, and rice bran can reduce blood lipids, serum total cholesterol and low-density lipoprotein cholesterol, increase high-density lipoprotein cholesterol, and has obvious nutritional an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A21D13/00
Inventor 郑志孟玲玲杨雪飞姜绍通潘丽军罗水忠
Owner HEFEI UNIV OF TECH
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