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Preparation method of cadmium removed starch rice and cadmium removed rice gluten powder

A technology of rice protein powder and rice starch, which is applied in the directions of food preparation, food science, application, etc., can solve the problems of hidden danger of food safety, low output value and the like, and achieves the effect of low cost and easy operation.

Inactive Publication Date: 2014-08-27
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some scholars believe that it can be used to produce industrial alcohol. Of course, it will not bring potential hidden dangers to food, but its output value is low
There are also some unscrupulous traders who, in order to pursue profits, even mix rice with cadmium exceeding the standard into ordinary rice for sale to avoid detection, which brings serious hidden dangers to my country's food safety.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Raw material in this example: rice with cadmium exceeding the standard (sampled in XX county, XX province), the test result is 0.42 mg / kg.

[0022] This embodiment includes the following steps:

[0023] (1) Soaking: Weigh 100g of rice with cadmium exceeding the standard, add 0.5 liter of sodium hydroxide solution with a mass concentration of 0.5wt%, soak for 12 hours at a temperature of 45°C, pour off the lye, rinse the rice once with water, and add 0.5 liters of sodium hydroxide solution with a mass concentration of 0.5wt% was soaked at a temperature of 45°C for 36 hours; then the lye was discharged;

[0024] (2) Refining: Add 0.5 liters of sodium hydroxide solution with a mass concentration of 0.5wt% to the rice treated in step (1), pulverize and wet-grind it into a pulp by a hammer mill; make the rice pulp particles after refining ≤ 100μm, to get rice milk;

[0025] (3) Separation: Put the rice slurry obtained in step (2) into a centrifuge, centrifuge at 1200rpm fo...

Embodiment 2

[0032] Raw material in this example: rice with cadmium exceeding the standard (sampled in XX county, XX province), and the test result is 0.40 mg / kg.

[0033] This embodiment includes the following steps:

[0034] (1) Soaking: Weigh 100g of rice with cadmium exceeding the standard, add 0.8 liters of sodium hydroxide solution with a mass concentration of 0.3wt%, soak for 24 hours at a temperature of 55°C, pour off the lye, rinse the rice once with water, and add 0.8 liters of sodium hydroxide solution with a mass concentration of 0.3wt% was soaked for 24 hours at a temperature of 55°C; then the lye was discharged;

[0035] (2) Refining: Add 0.8 liters of sodium hydroxide solution with a mass concentration of 0.3wt% to the rice treated in step (1), crush and wet grind it into a pulp through a bead mill; make the rice pulp particles after refining ≤ 100 μm , get rice milk;

[0036] (3) Separation: send the rice slurry obtained in step (2) into a centrifuge, and centrifuge at 20...

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Abstract

A preparation method of cadmium removed starch rice and cadmium removed rice gluten powder comprises the following steps: (1) soaking; (2) grinding into a thick liquid; (3) separating (4) removing cadmium; (5) sterilizing; and (6) drying. The preparation method can remove more than ninety percent of the cadmium, is simple in operation and low in cost, and can effectively solve the problem that unfitness for consumption caused by a fact that the cadmium in rice exceeds the standard. The product benefit of the cadmium removed starch rice and cadmium removed rice gluten powder is much higher than the value of the cadmium removed starch rice and cadmium removed rice gluten powder as feed raw materials or fuel ethanol, and the cadmium removed starch rice and cadmium removed rice gluten powder provide raw materials for the field of food processing, cosmetics, feeds and chemical industry, and the preparation method is suitable for mass popularization and application.

Description

technical field [0001] The invention relates to the technical field of static rice processing, in particular to a method for preparing cadmium-free rice starch and cadmium-free rice protein powder. Background technique [0002] In recent years, food safety issues have received more and more attention. Among them, the cadmium rice incident has attracted widespread attention from the whole society. In the past two years, after the cadmium rice incidents in Hunan, Hubei, Sichuan and other places were exposed, for a while, People have misgivings about the staples on their dinner plates. Rice is the main food for people in China, especially in southern China, and it is also the main planting variety for farmers in southern China. However, due to natural and human factors, rice in many areas has been threatened by cadmium to varying degrees. The China Rice Research Institute and the Rice and Products Quality Supervision, Inspection and Testing Center of the Ministry of Agricultur...

Claims

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Application Information

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IPC IPC(8): A23L1/10A23L1/09A23J1/12A23L7/10
CPCA23J1/12A23L5/27A23L29/30A23L33/185A23V2002/00A23V2250/5482A23V2250/5118
Inventor 刘博林亲录杨涛罗非君孙术国肖华西汪龙
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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