High-fiber edible oat bran powder, peeled oat grains and preparation methods thereof

Abstract

The invention relates to high-fiber edible oat bran powder and also relates to peeled oat grains; the invention further relates to preparation methods of the high-fiber edible oat bran powder and the peeled oat grains; and the invention belongs to the technical field of grain and food raw material processing. A vertical sand-roller rice mill is utilized to carry out 4-6 times of peelings; the sieve plates are all punched sieves whose forward tilt angles are 10 degrees and sieve holes are 25mm multiplies 0.9mm; the sand rollers are all flat-sheet emery sand rollers whose diameters are 250mm and linear velocities are 13.7m / s; the flat-sheet emery sand rollers utilized in the first and second peelings are of No. 30 and the flat-sheet emery sand rollers utilized in the third and fourth peelings are of No. 36; a pneumatic three-way dial-plate valve is turned on / off, so as to control whether to perform the fifth and sixth peelings, wherein the flat-sheet emery sand roller utilized in the fifth peeling is of No. 46 and the flat-sheet emery sand roller utilized in the sixth peeling is of No. 60; electric current of each vertical sand-roller rice mill is maintained at 17-18 amperes; and the final peeling rate is up to 80-85%. By utilizing the preparation methods, the peeling of the oats can be softly performed in a layer-by-layer way, so that the qualities of the bran powder and the peeled oats are thereby ensured.

Description

technical field [0001] The invention relates to a high-fiber edible oat bran powder, peeled oat rice, and a preparation method of the high-fiber edible oat bran powder and peeled oat rice, belonging to the technical field of grain and food raw material processing. Background technique [0002] With the continuous improvement of people's living standards, the diet is refined, resulting in an imbalanced diet structure, which leads to many diseases. Therefore, rebuilding a reasonable diet structure is of great significance to people's healthy life. Cereals are rich in nutrition and have good edible, medicinal and health functions. The huge development potential and market expansion potential of the miscellaneous grain industry are becoming increasingly prominent. Oat is one of the crops with extremely high nutritional value among cereal crops, and is known as "the king of long-term grain". According to a comprehensive analysis by the Institute of Health, Chinese Academy of M...

AI Technical Summary

Problems solved by technology

[0012] Most of the above-mentioned existing technologies use existing bran or bran powder, and the focus of attention lies in: the deep processing and utilization of bran, the subsequent treatment, related to the acquisition of bran, the research is not in-depth, or it is relatively simple, using the whole The oats are directly crushed and sieved, and the bran powder cannot be completely separated by sieving only according to the particle size after crushing, and the complete dehulled oatmeal cannot be obtained

Or generally use the technical means of reducing the peeling speed and prolonging the peeling time to improve the peeling rate and keep the integrity of the peeled oats. The attention to the oat peeling process is still not enough

At the same time, the outer cortex of oat grains contains more pesticide residues, heavy metals, mycotoxins and harmful microorganisms. Traditional processing methods have many food safety hazards, which are not conducive to the subsequent deep processing of oat bran. , brittle, so oat peeling is a major problem that has not been solved in this field. It is also for this reason that most of the oat products sold on the market are oat grains with skin, oat flour, and oatmeal. Oatmeal

At the same time, traditional oat bran has poor taste and bad taste and cannot be eaten directly. The lipase in the bran will cause the acid price to rise during storage, and the phytase will also affect the stability in storage and shorten the shelf life of the product.

At the same time, the nature of unpeeled oat grains is similar to that of wheat grains. Due to the wrapping of the seed skin, it is not easy to absorb water, difficult to process and mature, and cannot be steamed or boiled like rice.

Above-mentioned problems limit the development and application of oat bran powder and oat rice, how to solve the above-mentioned problems is the key point that the present invention pays close attention to

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