Preparation for reducing mercury content in rice grains and its preparation and usage

A technology of rice grains and preparations, applied in rice cultivation, botany equipment and methods, applications, etc., can solve the problems of affecting the absorption and transport efficiency of heavy metals such as mercury, the low absorption and utilization rate, and affecting rice yield, etc., to achieve grain Effects of safe export, reduction of total mercury content, and promotion of rice growth

Active Publication Date: 2017-03-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that, for rice, manganese and selenium are trace elements within a certain concentration range, which are beneficial to the growth of rice, but when they exceed a certain concentration, they become harmful elements, which inhibit the growth of rice and affect the yield of rice. For farmers, it is difficult to grasp and increase the difficulty of operation
In addition, compared with root fertilization, foliar liquid surface spraying has a lower absorption and utilization rate, which relatively affects its absorption and transport efficiency of mercury and other heavy metals in rice.

Method used

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  • Preparation for reducing mercury content in rice grains and its preparation and usage
  • Preparation for reducing mercury content in rice grains and its preparation and usage
  • Preparation for reducing mercury content in rice grains and its preparation and usage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method of the preparation for reducing the mercury content in rice grains comprises the following steps in turn: add 1L of water to the reaction kettle, adjust the water temperature to 50-60°C, add 20g of L-methionine, L-cysteine Acid 130g, L-selenomethionine 30g, glutathione 55g, potassium dihydrogen phosphate 120g and sodium nitrophenolate 12g, each component was added and reacted at constant temperature (50-60°C) for 30min until it was used as the final One component of sodium nitrophenolate was added and reacted at a constant temperature of 50-60°C for 30 minutes. After the reaction product is cooled to room temperature, filtered (filtered through a 2500-mesh filter), sterilized (heated at 121° C. for 20 minutes), and filled, the finished product is a preparation for reducing mercury content in rice grains.

[0034] The above-mentioned preparations were used to carry out the plot test. The contaminated soil test plot [volume, 1m (length) × 1m (width)...

Embodiment 2

[0044] The preparation method of the preparation for reducing the mercury content in rice grains comprises the following steps in turn: add 1L of water to the reaction kettle, adjust the water temperature to 50-60°C, add 15g of L-methionine, L-cysteine Acid 100g, L-selenomethionine 25g, glutathione 50g, potassium dihydrogen phosphate 150g and sodium nitrophenolate 10g, each component was added and reacted at constant temperature (50-60°C) for 30min until it was used as the final One component of sodium nitrophenolate was added and reacted at a constant temperature of 50-60°C for 30 minutes. The reaction product is cooled to room temperature, filtered (passed through a 2500-mesh filter), sterilized (heated at 121° C. for 20 minutes), and filled to obtain a finished product—a preparation for reducing mercury content in rice grains.

[0045] The above-mentioned preparations were used to carry out the plot test. The contaminated soil test plot [volume, 1m (length) × 1m (width) × 0...

Embodiment 3

[0052] The preparation method of the preparation for reducing the mercury content in rice grains comprises the following steps in sequence: add 1L of water to the reaction kettle, adjust the water temperature to 50-60°C, add 18g of L-methionine, L-cysteine Acid 107g, L-selenomethionine 25g, glutathione 50g, potassium dihydrogen phosphate 150g and sodium nitrophenolate 15g, each component was added and reacted at constant temperature (50-60°C) for 30min until it was used as the final One component of sodium nitrophenolate was added and reacted at a constant temperature of 50-60°C for 30 minutes. The reaction product is cooled to room temperature, filtered (passed through a 2500-mesh filter), sterilized (heated at 121° C. for 20 minutes), and filled to obtain a finished product—a preparation for reducing mercury content in rice grains.

[0053] The above-mentioned preparations were used to carry out the plot test. The contaminated soil test plot [volume, 1m (length) × 1m (width)...

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Abstract

The invention discloses a preparation capable of reducing mercury content in paddy rice grains, which comprises the following steps in order: 1)adding 1L water in reaction vessel, adjusting water temperature to 50-60 DEG C; 2)respectively adding 15-20g of L-methionine, 100-150g of L-cysteinem 25-30g of L-selenomethionine, 50-60g of glutathione, 120-200g of potassium dihydrogen phosphate and 10-15g of compound sodium nitrophenolate in order; and 3)cooling the obtained object to room temperature, filtering, disinfecting, and loading to obtain the finished product. The invention also provides an usage method of the preparation. According to the invention, paddy rice grain mercury content planted in a mild-moderate mercury pollution region is no more than 20mumg / kg.

Description

technical field [0001] The invention belongs to the technical field of agricultural product safety, and relates to a preparation for reducing mercury content in rice grains planted on medium-light mercury-polluted soil to realize food safety and its usage. Background technique [0002] The situation of heavy metal pollution in soil in my country is serious, which has seriously affected the quality of agricultural products and food safety. The "National Soil Pollution Survey Bulletin" jointly issued by the Ministry of Environmental Protection and the Ministry of Land and Resources on April 17, 2014 shows that the total soil point exceeding the standard rate in the country is 16.1%, and the rate of cultivated land soil point exceeding the standard is as high as 19.4%. Among the eight investigated inorganic pollutants, nickel, arsenic, and mercury rank 2nd, 3rd, and 5th in the point-exceeding rate respectively, and are heavy metal pollutants that need to be paid attention to. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/26A01P21/00A01G16/00A01N55/00A01N33/22A01N37/44A01N37/46A01G22/22
Inventor 谢晓梅廖敏张楠黄宇叶照金
Owner ZHEJIANG UNIV
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