Production process for cadmium-removed reproduced rice

A production process and remanufactured rice technology, which is applied in the field of cadmium-contaminated rice, can solve the problems of threatening consumers' health, flowing into the food field, food waste, etc., achieve high product benefits and promotion value, increase solubility, and increase solubility Effect

Inactive Publication Date: 2016-04-06
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the treatment process, a large amount of rice with cadmium exceeding the standard is still produced every year. On the one hand, it causes food waste, and on the other hand, it also has the risk of flowing into the food field and threatening the health of consumers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A production process for cadmium-removed reconstituted rice, comprising the following steps:

[0027] First, the brown rice with a cadmium content of 0.202 mg / kg is pulverized into brown rice flour, and the particle size is able to pass through a 50-mesh sieve;

[0028] Second, dissolving and centrifugal separation treatment, which specifically include: dissolving brown rice flour in NaOH solution, shaking for 2 hours, and then centrifuging at 5000r / min for 10 minutes, the supernatant is rice protein, and the precipitate is rice starch;

[0029] Third, cadmium removal treatment, mixing and extrusion granulation treatment, specifically including:

[0030] S1: Rice starch decadmium treatment: Rinse the rice starch with water, centrifuge, take the sediment and perform ultrasonic treatment, the ultrasonic frequency is 20kHz, to obtain the cadmium-depleted rice starch, dry it for later use;

[0031] S2: Rice protein cadmium removal treatment: add citric acid and phosphoric ...

Embodiment 2

[0035] A production process for cadmium-removed reconstituted rice, comprising the following steps:

[0036] First, the brown rice with a cadmium content of 1.013 mg / kg is pulverized into brown rice flour, and the particle size is able to pass through a 50-mesh sieve;

[0037] Second, dissolving and centrifugal separation treatment, which specifically include: dissolving brown rice flour in NaOH solution, shaking for 2 hours, and then centrifuging at 5000r / min for 10 minutes, the supernatant is rice protein, and the precipitate is rice starch;

[0038] Third, cadmium removal treatment, mixing and extrusion granulation treatment, specifically including:

[0039] S1: Rice starch decadmium treatment: Rinse the rice starch with water, centrifuge, take the sediment and perform ultrasonic treatment, the ultrasonic frequency is 25kHz, to obtain the cadmium-free rice starch, dry it for later use;

[0040] S2: Rice protein cadmium removal treatment: add citric acid and phosphoric acid...

Embodiment 3

[0044] A production process for cadmium-removed reconstituted rice, comprising the following steps:

[0045] First, the brown rice with a cadmium content of 0.350 mg / kg is pulverized into brown rice flour, and the particle size is able to pass through a 50-mesh sieve;

[0046] Second, dissolving and centrifugal separation treatment, which specifically include: dissolving brown rice flour in NaOH solution, shaking for 2 hours, and then centrifuging at 5000r / min for 10 minutes, the supernatant is rice protein, and the precipitate is rice starch;

[0047] Third, cadmium removal treatment, mixing and extrusion granulation treatment, specifically including:

[0048] S1: Rice starch decadmium treatment: Rinse the rice starch with clean water, centrifuge, take the sediment and perform ultrasonic treatment, the ultrasonic frequency is 22kHz, to obtain the cadmium-free rice starch, dry it for later use;

[0049] S2: Rice protein cadmium removal treatment: add citric acid and phosphori...

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PUM

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Abstract

The invention discloses a production process for cadmium-removed reproduced rice. Firstly, brown rice with the cadmium content of 0.2 mg/kg to 1.0 mg/kg is smashed into brown rice powder, then dissolution and centrifugal separation treatment are conducted, rice starch and rice protein are obtained and subjected to cadmium removal treatment, the cadmium-removed rice starch, the cadmium-removed rice protein and other nutrient substances are obtained, finally, mixing and extrusion pelleting treatment are conducted, and the cadmium-removed reproduced rice is obtained. The cadmium removal technology and the rice reproduction technology can be combined, the content of heavy metal cadmium in the rice is progressively reduced, the appearance of the rice is not affected, and the nutritional ingredients in the rice cannot be reduced.

Description

technical field [0001] The invention relates to the treatment technology of cadmium polluted rice. More specifically, the present invention relates to the processing and utilization of rice with high cadmium content to produce low-cadmium reconstituted rice products. Background technique [0002] In recent years, due to factors such as industrial emissions and farmland fertilization, the problem of heavy metal pollution in farmland soil in my country has gradually intensified, and the phenomenon of excessive cadmium in rice has occurred from time to time. Surveys show that about 10% of rice in my country has excessive cadmium. At present, the methods to deal with excessive cadmium in rice mainly include soil remediation and screening of rice varieties with low enrichment capacity, but both methods require a certain period of treatment. During the treatment process, a large amount of cadmium-exceeding rice is still produced every year. On the one hand, it causes food waste,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L7/196A23L5/20A23L5/30
CPCA23V2002/00A23V2400/11A23V2300/30A23V2300/48
Inventor 魏帅魏益民郭波莉张波张影全李明
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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