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Production method of natural seaweed iodine low-sodium salt exposed to sunlight in solar greenhouse

A technology for solar greenhouses and production methods, applied in alkali metal chlorides, food preparation, food science, etc., can solve problems such as high energy consumption and processing costs, difficulties in solid mixtures, non-compliance, etc., and achieve production conditions and a hygienic environment Improve and speed up the concentration and crystallization process, and reduce the effect of dependence

Inactive Publication Date: 2015-09-16
嘉兴联飨科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main drawback of this method of producing low-sodium salt under open-pit conditions is that open-pit salt production is greatly affected by the natural environment and climatic conditions
The defect of the low-sodium salt production method of this sodium chloride and potassium chloride fixed mixture is: at first adopt the ratio of increasing potassium chloride, generally reach 20%-30%, offset the content of sodium chloride
Because edible potassium chloride is relatively expensive, about 1300-1400 yuan per ton, which increases the total cost of salt and makes the price increase
Secondly, the characteristics of potassium chloride have a heavier metallic taste and bitter taste than sodium chloride, which affects and changes the taste of food and people's eating habits, and is not the first choice for human consumption
Low-sodium salt produced by vacuum salt or mechanical processing involves high energy consumption and processing costs, thus increasing production costs, making its price unaffordable for many
[0005] In the attempt to produce low-sodium salt, many other methods have been used, such as "preparation of low-sodium salt by mixing method", "production of low-sodium salt composition", "multi-element nutrition low-sodium salt", "low-sodium salt In the descriptions of methods such as "mixture of food", "edible health salt", and "preparation of low-sodium salt from plant sources", most of them use the method of adding and mixing to reduce the content of sodium chloride, that is, the method of simple physical mixing is used to produce Low-sodium salt is produced, and its defect is; First, producers have to mix sea salt, well salt, mineral salt, etc. with potassium chloride, potassium iodate, magnesium sulfate, and potassium selenite to obtain a solid mixture, but the real Homogeneous solid mixtures are very difficult
Secondly, by adding additives to table salt as a substitute for sodium chloride to reduce the salty taste of food, such as adding citric acid, maltose, sucrose and other substitutes to table salt, it does not meet the requirements of modern pure green, and some Additives can have undesired side effects
The low-sodium salt obtained by the method of mixed addition is economically unattractive due to high production costs, and most of them have no practical application and promotion value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0052] In this example, the seaweed is soaked in pure fresh brine with seawater brine density of 18°Be-20°Be, that is, unsaturated intermediate brine, and then crushed, the filtrate is collected, and the filter residue is also collected after repeated soaking. The obtained brine has a density of 32° Be's seawater and old brine are blended in the adjustment tank according to the ratio of 4:6, that is, 40% of the pure new brine and 60% of the old brine are blended, and then the blended brine is put into the evaporation pool for evaporation and concentration. When the brine reaches 26 ° Be supersaturated, put it into the crystallization pond of the greenhouse after filtering, the depth of filling the pond reaches 3cm, and the crystallization cycle is 5 days. The produced low-sodium salt has a particle size of 2-4cm, a whiteness of ≥80%, and a light transmittance of over 90%. According to laboratory analysis, the content of sodium chloride is 65.72%, magnesium chloride is 1.87%, m...

example 2

[0054] In this example, enteromorpha is soaked in pure new brine with a seawater density of 25Be, that is, saturated brine, and then mashed, the filtrate is collected, and the filter residue is also collected after repeated soaking. The ratio of : 7 is put into the adjustment pool for blending, after adjustment and fusion, it is filtered and put into the greenhouse crystallization pool for drying. The crystallization period is 3 days. The particle size of the produced low-sodium salt is controlled at 2-4mm, the whiteness is ≥80%, and the light transmittance is 90%. After drying and analysis, the sodium chloride content is 88.21%, of which the trace element magnesium chloride is 1.688%, and magnesium sulfate is 2.177%. %, calcium sulfate 0.448%, sulfate ion content 0.46%, fully in line with the standard of low sodium salt, iodine content 31.080mg / kg, reaching the national edible salt iodine content standard. The yield per acre also reached about 0.023 tons.

example 3

[0056] In this example, enteromorpha is soaked with a well mine brine density of 25 ° Be pure new brine and crushed, the filtrate is collected, and the filter residue is also collected after repeated soaking. Blending, because the well mine brine has been removed from impurities such as sulfate radicals and sodium sulfate, and the sodium content is relatively high. Therefore, when blending, the pure new brine accounts for 2.5% and the sea brine is blended in a ratio of 7.5%. After precipitation and fusion, the brine The visibility is above 20cm. After being filtered, it is put into the crystallization tank for drying. The crystallization cycle is 4 days. The produced low-sodium salt particles are 2-4mm. After dry chemical analysis, the content of sodium chloride is 86.66%, magnesium chloride 2.202%, sulfuric acid Magnesium 2.387%, calcium sulfate 0.153%, sulfate ion content 0.46%, iodine content 24.908mg / kg, reaching the national edible salt iodine content standard. The low-so...

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Abstract

The present invention discloses a method for producing a nature seaweed iodine low-sodium salt through solarization by using a solar energy greenhouse. The method is characterized in that the method for producing a low-sodium salt in a solar energy greenhouse by adopting the traditional nature solarization process through blending, adjustment and fusion of the pure new brine (sea brine or mine brine) and the abandoned old brine (sea brine) is provided, and an algae water extract is added so as to indirectly add the iodine element to obtain the nature seaweed iodine low-sodium salt. With the method, the defect of the method for producing the low-sodium salt containing iodine in the prior art is eliminated.

Description

technical field [0001] The invention relates to a method for producing natural seaweed low-sodium iodine salt by using a solar greenhouse and adopting a traditional natural sun-drying process. That is to use seawater brine or pure new brine from wells and mines and recycled seawater old brine (old brine discarded from the production of ordinary salt) for blending and adjustment to produce potassium, magnesium, and calcium with low sodium chloride content and beneficial to human health The trace elements are relatively balanced, and it is pure natural edible salt without any additives. The industrialization test proves that this method of salt production has the advantages of low investment, low cost, high return and high economic benefit, meets the requirements of green food, and has practical application and popularization value. Background technique [0002] Salt is a mixture of sodium chloride, potassium chloride and trace elements such as magnesium and calcium. People ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/237A23L1/304A23L33/16
CPCA23L27/40A23L33/16C01D3/04
Inventor 何培民蔡春尔石海涯石伊璇石其章
Owner 嘉兴联飨科技有限公司
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