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Comprehensive utilization method of defatted rice bran

A technology of defatted rice bran and mixed solution, which is applied in the direction of chemical instruments and methods, compounds and applications of group 5/15 elements of the periodic table, and can solve the problems of underutilized value, increased ash content, low utilization rate of defatted rice bran, etc. question

Active Publication Date: 2013-12-18
无锡新禾创工食品科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of utilization, phytic acid is the salt in rice bran, and its presence will increase the ash content of subsequent products, which is not conducive to the comprehensive utilization of rice bran; at the same time, phytic acid is also one of the anti-nutritional factors, which will reduce the nutritional value of the product
[0005] Although my country is the main rice producing country and the rice processing technology is very mature, the by-products of rice bran are mainly used as feed or other fermentation substrates, and their comprehensive utilization level is still very low.
At present, rice bran oil extracted from rice bran has become an important product in the market, and defatted rice bran is also used as feed or fermentation substrate, its value has not been fully utilized, therefore, there is still a huge waste of resources
[0006] In order to solve the problem of low utilization rate of defatted rice bran at present, the present inventor has completed the present invention through a large number of experiments, and realized the comprehensive utilization of defatted rice bran

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0149] Embodiment 1: comprehensive utilization of defatted rice bran

[0150] The implementation steps of this embodiment are as follows:

[0151] A. Raw material pretreatment

[0152] Weigh 380 parts by weight of the defatted rice bran raw material sold by Hongzheng Feed Co., Ltd., add 880 parts by weight of water, stir evenly, and then use the pulverizer sold by Shanghai Zhengyuan Powder Engineering Equipment Co., Ltd. under the trade name pulverizer for the first time. Pulverize, pulverize the defatted rice bran to 60 mesh, and then use the same pulverizer to pulverize the defatted rice bran for the second time to 120 mesh to obtain a defatted rice bran mixed liquid.

[0153] B. Acid leaching

[0154] Add a hydrochloric acid solution with a concentration of 8% by weight to the defatted rice bran mixture obtained in step A, adjust the pH value of the mixture to 3.4, and carry out acid extraction for 2.8 hours at a stirring speed of 60 r / min. After leaching, a centrifuge s...

Embodiment 2

[0173] Embodiment 2: comprehensive utilization of defatted rice bran

[0174] The implementation steps of this embodiment are as follows:

[0175] A. Raw material pretreatment

[0176] Weigh 300 parts by weight of the defatted rice bran raw material sold by Hongzheng Feed Co., Ltd., add 800 parts by weight of water, stir evenly, and then use the pulverizer sold by Shanghai Zhengyuan Powder Engineering Equipment Co., Ltd. under the trade name Pulverizer for the first time. Pulverize, pulverize the defatted rice bran to 70 meshes, and then use the same pulverizer to carry out the second pulverization to pulverize the defatted rice bran to 110 meshes to obtain a defatted rice bran mixed liquid.

[0177] B. Acid leaching

[0178] Add a concentration of 10% hydrochloric acid solution by weight to the degreased rice bran mixture obtained in step A, adjust the pH value of the mixture to 3.0, carry out acid leaching for 2 hours at a stirring speed of 70r / min, and After extraction, ...

Embodiment 3

[0197] Embodiment 3: comprehensive utilization of defatted rice bran

[0198] The implementation steps of this embodiment are as follows:

[0199] A. Raw material pretreatment

[0200] Weigh 420 parts by weight of the defatted rice bran raw material sold by Hongzheng Feed Co., Ltd., add 1100 parts by weight of water, stir evenly, and then use the pulverizer sold by Shanghai Zhengyuan Powder Engineering Equipment Co., Ltd. under the trade name pulverizer for the first time. Pulverize, pulverize the defatted rice bran to 60 mesh, and then use the same pulverizer to carry out the second pulverization to pulverize the defatted rice bran to 100 mesh to obtain a defatted rice bran mixture.

[0201] B. Acid leaching

[0202] Add a hydrochloric acid solution with a concentration of 12% by weight to the degreased rice bran mixture obtained in step A, adjust the pH value of the mixture to 3.6, and carry out acid extraction for 3.4 hours at a stirring speed of 80 r / min. After leaching...

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Abstract

The invention relates to a comprehensive utilization method of defatted rice bran. The method comprises the following steps of raw material pretreatment, acid extraction, first alkali precipitation, acid dissolution, second alkali precipitation, calcium phytate extraction, dextrose extraction, rice bran protein polypeptide extraction and the like. By adopting the method provided by the invention, the comprehensive utilization of the defatted rice bran is achieved, the four products with good quality, including calcium phytate, crystalline dextrose, rice bran protein polypeptide and rice bran fiber, are produced, the practical application value of the defatted rice bran is improved, and therefore the comprehensive utilization method of the defatted rice bran has a bright promotion and application prospect.

Description

【Technical field】 [0001] The invention belongs to the technical field of comprehensive utilization of rice processing by-products. More specifically, the invention relates to a comprehensive utilization method of defatted rice bran. 【Background technique】 [0002] A large amount of rice bran will be produced in the process of rice processing, and my country is a big rice producing country, and rice production accounts for about 30% of the global rice production. In 2006 alone, China produced 190 million tons of rice annually, and produced about 18 million tons of rice bran at the same time. Therefore, my country's rice bran resources are very rich. [0003] Rice bran mainly contains 16%-22% lipid, 12%-16% crude protein, 8%-12% crude fiber, and 7%-10% ash. In addition, rice bran also contains a variety of natural active substances, such as phytic acid, oryzanol, γ-aminobutyric acid, lipopolysaccharide, tocopherol, etc. These ingredients have many functions such as preventin...

Claims

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Application Information

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IPC IPC(8): C07F9/117C12P19/14C12P19/02C12P21/06A23L1/10A23L1/308A23L33/21
Inventor 不公告发明人
Owner 无锡新禾创工食品科技有限公司
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