High-purity rice bran protein and rice bran fibers and preparation method thereof

A technology of rice bran protein and rice bran fiber, which is applied to the preparation of high-purity rice bran protein and rice bran fiber, and the field of high-purity rice bran protein and rice bran fiber, can solve the problems of poor smell and flavor of residue, not getting enough attention, and being difficult to use.

Active Publication Date: 2014-01-01
格乐瑞(无锡)营养科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current research focusing on the extraction of rice bran protein, the rice bran fiber and other functional substances in defatted rice bran have not received enough attention. The residue after protein often has high ash content and carbohydrates, etc. Even after the protein is hydrolyzed and extracted with protease, the smell and flavor of the residue are very poor, and it is difficult to continue to use as food

Method used

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  • High-purity rice bran protein and rice bran fibers and preparation method thereof
  • High-purity rice bran protein and rice bran fibers and preparation method thereof
  • High-purity rice bran protein and rice bran fibers and preparation method thereof

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Embodiment 1

[0093] Embodiment 1: Preparation of high-purity rice bran protein and rice bran fiber

[0094] The implementation steps of this embodiment are as follows:

[0095] A. Raw material pretreatment

[0096] Using the screening method, 2000 kg of defatted rice bran raw materials sold by Jiangxi Jinnong Rice Industry Co., Ltd. (based on the total weight of defatted rice bran raw materials, protein content 18.1%, ash content 13.9%, fat 0.95%, total sugar 30.6%, crude fiber 25.7% ) to remove the tangible foreign matter present in the mixture; then, the sieved defatted rice bran raw material was crushed to a particle size of 120 mesh using a crushing equipment sold by Jiangyin Weida Pharmaceutical Machinery Manufacturing Co., Ltd. to obtain defatted rice bran powder;

[0097] B. The first pulping and enzyme reaction

[0098] Add water to the defatted rice bran powder obtained in step A to adjust the slurry to obtain a feed liquid with a defatted rice bran powder concentration of 20% b...

Embodiment 2

[0108] Embodiment 2: Preparation of high-purity rice bran protein and rice bran fiber

[0109] The implementation steps of this embodiment are as follows:

[0110] A. Raw material pretreatment

[0111] Using the sieving method, 2000 kg of defatted rice bran raw materials sold by Jiangxi Hehe Industrial Co., Ltd. (based on the total weight of defatted rice bran raw materials, protein content 19.4%, ash content 12.0%, fat 0.9%, total sugar 32.1%, crude fiber 27.8 %) to remove the tangible foreign matter present; then, the sieved defatted rice bran raw material is sold by Jiangyin Weida Pharmaceutical Machinery Manufacturing Co., Ltd., Jiangyin Haike Powder Equipment Manufacturing Co., Ltd., and Jiangyin Longchang Machinery Manufacturing Co., Ltd. Advanced crushing equipment is crushed to a particle fineness of 150 mesh to obtain defatted rice bran powder;

[0112] B. The first pulping and enzyme reaction

[0113] Add water to the defatted rice bran powder obtained in step A t...

Embodiment 3

[0123] Embodiment 3: Preparation of high-purity rice bran protein and rice bran fiber

[0124] The implementation steps of this embodiment are as follows:

[0125] A. Raw material pretreatment

[0126] Using the screening method, 2000 kg of defatted rice bran raw materials sold by Yutai County Baofeng Oil Co., Ltd. (based on the total weight of defatted rice bran raw materials, protein content 16.1%, ash content 11.2%, fat 0.75%, total sugar 37.2%, crude fiber 24.3 ) to remove the tangible foreign matter existing in it; then, the sieved defatted rice bran raw material is sold by Jiangyin Weida Pharmaceutical Machinery Manufacturing Co., Ltd., Jiangyin Haike Powder Equipment Manufacturing Co., Ltd., and Jiangyin Longchang Machinery Manufacturing Co., Ltd. The crushing equipment is crushed to a particle fineness of 120 mesh to obtain defatted rice bran powder;

[0127] B. The first pulping and enzyme reaction

[0128] Add water to the defatted rice bran powder obtained in ste...

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Abstract

The invention relates to high-purity rice bran protein and rice bran fibers, and further relates to a preparation method of the high-purity rice bran protein and the rice bran fibers. The preparation method includes the steps of raw material pretreatment, first size mixing and enzyme reaction, second size mixing and enzyme reaction, separate washing, drying and the like. According to the method, through superfine grinding and amylase and cellulose hydrolyzing, components of defatted rice bran are effectively separated, a whirlcone is utilized to conduct the washing treatment, and therefore separate washing efficiency is greatly improved. Compared with spray drying, flash drying equipment is utilized, investment is saved by about 40%, operating cost is saved by about 35%, in rice bran protein products, the protein content is over 80%, the ash content is below 3%, the fat content is below 0.5%, the protein extraction ratio is over 75%, and in rice bran fiber products, the fiber content is over 70%, the ash content is below 4%, and the fat content is below 1%. The high-purity rice bran protein and the rice bran fibers all can be widely applied to the field of health food, nutritious food and the like, and additional value of rice deep processing is greatly improved.

Description

【Technical field】 [0001] The invention belongs to the technical field of rice deep processing. More specifically, the present invention relates to high-purity rice bran protein and rice bran fiber, and also relates to a preparation method of high-purity rice bran protein and rice bran fiber. 【Background technique】 [0002] Rice bran is a mixture of the cortex and a small amount of rice germ and broken rice that are rolled off during the whitening process of brown rice. Compared with polished white rice, rice bran and rice germ contain higher protein, fat, dietary fiber, vitamins and minerals and other nutrients. A USDA study reported that 64% of the nutrients in rice are concentrated in the bran. Due to the action of lipase contained in rice, if the treatment is not timely, the fat in the rice bran produced after rice milling will be rapidly oxidized and spoiled. Therefore, most rice factories will quickly stabilize the rice bran by extrusion and puffing after rice milling....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/12A23L1/308A23L33/22
Inventor 不公告发明人
Owner 格乐瑞(无锡)营养科技有限公司
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