Preparation method of selenium-added rice

A technology for rice and rice moistening, which is applied in the field of preparation of selenium-added rice, can solve the problems of unreliable effect, high cost, many restricted factors, etc., and achieves accurate selenium addition process, determination of selenium content, and improved nutritional and health value. Effect

Pending Publication Date: 2021-06-11
湖南仕杰农业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In areas with low selenium content in the soil, selenium-enriched nutrient solution can be sprayed on rice leaves from earing to filling stage, and selenium-enriched rice can be produced through plant absorption and biotransformation, but there are problems of high cost and unreliable effect. For example, rainy or strong winds will affect the effect of foliar spraying and the absorption effect of rice plants
Therefore, in the process of rice planting, selenium enrichment is limited by many factors.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for preparing selenium-added rice, which includes the steps of hulling husked rice, separating rice and husk, whitening, grading, polishing, color sorting, and packaging, wherein the rice moistening water added before the polishing has a selenium concentration of 0.054 mg / ml sodium selenite aqueous solution; when the rice enters the storage hopper, the rice is moistened by the centrifugal atomization device, and the spray volume is 2kg per ton of rice, and the rice moistening time is guaranteed to be more than 30 seconds, and then enters the polishing chamber polishing. The purity of the sodium selenite pentahydrate prepared in the aqueous solution is 99%, the selenium content is 30%, and the lead, cadmium and arsenic contents are all lower than 500ppm.

[0019] The result is that the surface of the polished rice is smooth and free of bran powder. The addition of sodium selenite to the rice moistening water has no effect on the moistening and polishing process....

Embodiment 2

[0021] A method for preparing selenium-added rice, which includes the steps of husking, paddy and husk separation, whitening, grading, polishing, color sorting, and packaging, wherein, during the polishing process, compressed air is used to flow the rice into the polishing chamber Atomize and spray rice moistening water, the added rice moistening water is an aqueous solution of sodium selenite with a selenium concentration of 0.085 mg / ml, the spray volume is 3 kg per ton of rice spray, and the rice moistening time is about 10 seconds. The purity of the sodium selenite pentahydrate prepared in the aqueous solution is 99%, the selenium content is 30%, and the lead, cadmium and arsenic contents are all lower than 500ppm.

[0022] The result is that the surface of the polished rice is smooth and free of bran powder, and the addition of sodium selenite to the rice moistening water has no effect on the moistening and polishing process. There is no visible change in the appearance af...

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PUM

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Abstract

The invention relates to a preparation method of selenium-added rice, which comprises the working procedures of husking, husked rice separation, whitening, grading, polishing, color sorting and packaging, and is characterized in that sodium selenite or sodium selenate is dissolved in water for moistening rice before polishing or in the polishing process. According to the method, the selenium content of the used raw materials is determined, the selenium adding process is accurate, the added selenium basically enters the rice product, so that the added selenium is obtained, the selenium content of the rice is specific and accurate, and the selenium content can be specifically marked in packaging of the selenium-added rice product and quality index data publicized and displayed; and consumers can quantitatively supplement selenium by quantitatively eating the prepared selenium-added rice.

Description

technical field [0001] The invention belongs to the technical field of grain processing, and in particular relates to a preparation method of selenium-added rice. Background technique [0002] Rice is an important food crop in my country, and rice is one of people's basic staple foods; selenium-enriched rice with health benefits has recently attracted attention. It is generally considered that rice containing 0.04-0.30 mg / kg selenium is selenium-enriched rice. [0003] Selenium is an indispensable trace element to maintain the normal functions of the human body. Selenium deficiency in the human body can lead to various diseases. According to research, selenium has the effects of improving the body's antioxidant capacity, enhancing the body's immune function, effectively removing garbage in the body, promoting human health, and delaying aging. The daily selenium intake recommended by the Chinese Nutrition Society is 50-250 micrograms, depending on individual physical condit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L7/10A23L33/16
CPCA23L7/197A23L33/16A23V2002/00A23V2200/30A23V2250/1626
Inventor 邓菲菲邓仕运
Owner 湖南仕杰农业股份有限公司
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