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Method for extracting algae iodine by using calcium ion sedimentation and produced alginate using same

A technology of seaweed iodine salt and seaweed iodine, which is applied in chemical instruments and methods, food science, inorganic chemistry, etc., can solve the problems of high heavy metal content, complex seaweed iodine process, etc., and achieve the effect of simple process

Active Publication Date: 2012-09-19
HUNAN XUETIAN SALT TECH DEV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages of the prior art for extracting seaweed iodine, such as complex process and high heavy metal content, the present invention provides a method for extracting seaweed iodine, that is, the calcium ion precipitation method, and the solution extracted by this method is used to prepare seaweed iodine concentrate, seaweed iodine crystal and Seaweed iodized salt

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  • Method for extracting algae iodine by using calcium ion sedimentation and produced alginate using same
  • Method for extracting algae iodine by using calcium ion sedimentation and produced alginate using same
  • Method for extracting algae iodine by using calcium ion sedimentation and produced alginate using same

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Effect test

Embodiment 1

[0026] 1 Materials and methods

[0027] 1.1 Materials

[0028] Edible kelp, like dried kelp, was purchased from the Mawangdui Aquatic Products Market in Changsha. The place of origin is unknown.

[0029] Reagent: Na 2 CO 3 Glycerol (Glycerin) Ca(OH) 2 KCO 3 Commercially available bromine water 20% sodium formate KI 0.5% starch solution 0.002M / L Na 2 S 2 o 3

[0030] 1.2 Instruments

[0031] Constant temperature box rotary evaporator 1000ml measuring cylinder 250ml volumetric bottle scissors pipette 1000w electric furnace 500ml iodine measuring bottle muffle furnace

[0032] 1.3 Experimental process, see appendix figure 1 .

[0033] 2 Experimental results

[0034] 2.1 Only add extractant without adding Ca(OH) 2 Settlement control experiment:

[0035] Experimental conditions: shredded kelp 50g

[0036] water 1000ml

[0037] Extraction temperature 50°C

[0038] time 12h

[0039] Glycerin 5g

[0040] Add 4g Na 2 C...

Embodiment 2

[0108] Get 50g of sea-tangle, break 1-2cm, add 5g glycerin, 4g sodium carbonate (Na 2 CO 3 ) mixed and extracted for 12h to obtain the filtrate, in which 5g of calcium hydroxide (Ca(OH) 2 ) to settle, to get the clear liquid, concentrate, then centrifuge to remove the residue and salt crystals of the concentrated solution, adjust the iodine content of the concentrated solution, neutralize, and promptly get the seaweed iodine solution that can be sprayed with iodine for 3% iodine content .

[0109] Utilize the spray equipment in the production line to spray the 3% seaweed iodine concentrate obtained by the above-mentioned enzymolysis method in the iodine-free salt evenly by the weight ratio of 1000: 1.5 iodine-free salt and seaweed iodine concentrate in the process, stir evenly, Then it is subpackaged into small packages of 200g, 400g, 500g, and 1000g.

Embodiment 3

[0111] Get 50g of sea-tangle, break 1-2cm, add 5g glycerin, 4g sodium carbonate (Na 2 CO 3 ) mixed and extracted for 12h to obtain the filtrate, in which 5g of calcium hydroxide (Ca(OH) 2 ) to settle, to obtain the clear liquid, concentrate, then centrifuge to remove the residue and salt crystals of the concentrated solution, adjust the iodine content of the concentrated solution, neutralize, and promptly get the seaweed iodine solution that can be sprayed with iodine and iodine with an iodine content of 2%. , adding seaweed polysaccharide to the seaweed iodine solution, stirring, drying and dehydrating, granulating to obtain the finished seaweed iodine crystal, and packing.

[0112] Fully mix 100kg of iodine-free salt with seaweed iodine crystals with an iodine content of 1%, so that the iodine content of the mixture reaches 0.012%-0.03% (weight ratio) to obtain iodine-containing mother salt, and then mix the mother salt with non-iodine salt in the machine cone Mix and mix ...

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Abstract

The invention provides a method for extracting algae iodine, namely a calcium ion sedimentation method, and an algae iodine concentrated solution, an algae iodine crystal and an algae iodine salt which are prepared by using the solution extracted by using the method. The technical scheme in the invention is as follows: a) taking raw materials and directly crushing the raw materials, adding glycerol, sodium carbonate and water, mixing and extracting the mixture for 6-18 hours, and then acquiring a filtrate by filtering, wherein the weight of the glycerol is 8%-10% of the weight of the raw materials, the weight of the sodium carbonate is 8%-16% of the weight of the raw materials, and the weight of water is 10 times of the weight of the raw materials, and b) settling the filtrate by using calcium hydroxide, calcium oxide or calcium chloride, the weight of which is 10%-14% of the weight of the raw materials, and then filtering and centrifuging the filtrate so as to acquire the clear liquid containing algae iodine, and lastly concentrating the clear liquid containing algae iodine, thereby acquiring the algae iodine concentrated solution. By using the method, the heavy metal in the algae iodine products is efficiently removed, the extraction ratio of algae iodine is high, the process is simple and the cost is saved.

Description

technical field [0001] The invention belongs to the field of food processing, in particular to a method for extracting iodine-containing products and preparing seaweed iodized salt. Background technique [0002] Iodine is known as the "intelligent element", it is an indispensable element for the synthesis of thyroid hormones, and plays an extremely important role in the metabolism of humans and animals. Pregnant women, nursing mothers, and children are especially indispensable for iodine deficiency. Iodine is usually in a state of dynamic balance in the human body, and excess iodine will be excreted with urine. Iodine deficiency in different stages of human development and growth will cause damage to health, mainly manifested as goiter and cretinism. At present, the main way of supplementing iodine is potassium iodate, which is a kind of chemically synthesized iodine agent, which is poorly absorbed by the human body. Many types of marine algae plants contain a relatively ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B7/16A23L1/237A23L1/30A23L1/09A23L27/40
Inventor 左斌
Owner HUNAN XUETIAN SALT TECH DEV CO LTD
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