Cadmium-eliminated rice protein, and preparation method and application thereof

A rice protein and cadmium-removing technology, applied in the field of cadmium-removing rice protein and its preparation, can solve the problem of high cadmium content in rice protein, and achieve the effects of simple operation, best cadmium-removing effect, and low cost

Active Publication Date: 2013-09-11
义乌市海之纳生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One of the purposes of the present invention is to solve the problem of high cadmium content in existing rice protein, and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Cadmium removal treatment

[0037] Mix rice dregs (commercially available, produced by Jiangsu Meimeiyuan Biotechnology Co., Ltd.) and citric acid solution with pH=2.5 in proportion, and perform cadmium removal treatment at a stirring speed of 100 rpm. The specific parameters are shown in Table 1;

[0038] (2) Post-processing

[0039] Vacuum filter the product obtained in step (1) (vacuum degree is -0.05MPa, filter mesh size is 50-100 mesh) except for protein components, wash with water, dry (temperature is 60°C, time is 3h), and sterilize (temperature 80°C, time 3h), crushed to 200-1000 mesh to obtain cadmium-free rice protein with cadmium content less than 0.1mg / kg.

[0040]

Embodiment 2

[0042] (1) Cadmium removal treatment

[0043] Mix rice dregs (commercially available, produced by Jiangxi Magu Industrial Group Co., Ltd.) with food-grade acetic acid solution with pH=3 in proportion, and perform cadmium removal treatment at a stirring speed of 800 rpm. The specific parameters are shown in Table 1;

[0044] (2) Post-processing

[0045] Vacuum filter the product obtained in step (1) (vacuum degree is -0.08MPa, filter mesh size is 50-100 mesh) except for protein components, wash with water, dry (at a temperature of 90°C for 2 hours), and sterilize (at a temperature of at 85°C for 2 hours), crushed to 200-1000 mesh to obtain cadmium-free rice protein with a cadmium content of less than 0.1 mg / kg.

[0046]

Embodiment 3

[0048] (1) Cadmium removal treatment

[0049] Mix rice dregs (commercially available, produced by Jiangsu Meimeiyuan Biotechnology Co., Ltd.) and malic acid solution with pH=3.5 in proportion, and perform cadmium removal treatment at a stirring speed of 700 rpm. The specific parameters are shown in Table 1;

[0050] (2) Post-processing

[0051]Filter the product obtained in step (1) by pressure filtration (pressure 0.15MPa, filter mesh 50-100 mesh) except protein components, wash with water, dry (temperature 70°C, time 2h), sterilize (temperature 80 ℃, time 2h), crushed to 200-1000 mesh to obtain cadmium-free rice protein with cadmium content less than 0.1mg / kg.

[0052]

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PUM

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Abstract

The invention discloses a cadmium-eliminated rice protein and a preparation method and application thereof. The objective of the invention is to overcome the problem that the content of cadmium in conventional rice protein is too high. The cadmium-eliminated rice protein provided by the invention is prepared by eliminating cadmium in a rice residue by using an acid solution and processing the cadmium-eliminated rice residue and contains less than 0.1 mg/kg of cadmium. According to the invention, the removal rate of cadmium is more than 90%, and the preparation method has the advantages of simple operation, low cost, capacity of safely and effectively obtaining the rice protein with low content of cadmium and suitability for large scale popularization and application.

Description

technical field [0001] The invention relates to the technical field of rice deep processing, in particular to a cadmium-depleted rice protein and its preparation method and application. Background technique [0002] The quality of rice protein is recognized as the best among cereal proteins. It is rich in essential amino acids, the content of the first limiting amino acid lysine is higher than that of other cereals, and the amino acid composition mode is close to the WTO / FAO recommended mode. Easy to be digested and absorbed by the human body. Compared with other cereal proteins, the biological value (BV) and protein utilization rate (PER) of rice protein are higher, and the biological value can be as high as 77%. As a deep-processed product of rice, rice protein not only solves the problem of reusing rice dregs, a by-product of rice, but also provides a high-quality protein resource for the food industry. [0003] However, due to the high conversion coefficient from soil ...

Claims

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Application Information

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IPC IPC(8): A23J1/12A23L1/305
Inventor 黄武宁肖静宗金萍陈开平
Owner 义乌市海之纳生物工程有限公司
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