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Method for extracting fucoidan sulfate from wakame sporophyll and removing heavy metals

A technology of fucoidan sulfate and wakame spore leaves, which is applied in the field of extracting fucoidan sulfate and removing heavy metals, to achieve the effects of improving efficiency, increasing solubility, and increasing contact time

Active Publication Date: 2020-07-24
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Often it is not easy for one removal method to remove all heavy metals below the limit standard, and a combination of multiple methods can achieve a good removal effect, especially for the removal of Cd and cadmium.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 1.0kg of dried wakame sporophyll and wash it quickly, remove the sediment, soak in water at 60°C for 2 hours, rehydrate and soften, chop into small pieces of about 1 cm; add water according to the ratio of material to liquid 1:15, and heat to 60°C , terahertz wave circulation extraction for 6h, the extract was cooled to room temperature, filtered, the filtrate was collected, then the filtrate was centrifuged, the supernatant was taken, concentrated to 1 / 5 of the volume of the original solution, and treated with terahertz wave circulation, the temperature of the feed liquid at 25°C, treated with terahertz wave for 3 hours, to obtain terahertz wave treated material liquid; quickly inject the treated material liquid into the strong cation cross-flow exchange system at a flow rate of 10L / h, cycle adsorption once, inject into the electrodialysis system, and enter The amount of material is 10L / h, and the cycle adsorption is 10 min, repeated 3 times, to obtain the material...

Embodiment 2

[0032] Take 1.0kg of dried wakame sporophyll and wash it quickly, remove the sediment, soak in water at 60°C for 4 hours, rehydrate and soften, chop into small pieces of about 1 cm; add water according to the ratio of material to liquid 1:3, and heat to 90°C , terahertz wave circulation extraction for 1h, the extract was cooled to room temperature, filtered, and the filtrate was collected, then the filtrate was centrifuged, the supernatant was taken, concentrated to 1 / 3 of the volume of the original solution, and treated with terahertz wave circulation, the temperature of the feed liquid 25°C, terahertz wave cycle treatment for 0.5h, to obtain terahertz wave treatment feed liquid; quickly inject the treated feed liquid into the strong cation tangential flow exchange system at a flow rate of 20L / h, cycle adsorption for 3 times, and inject into the electrodialysis system , the feed rate is 20L / h, the adsorption cycle is 30 min, and the cycle is 1 time, and the feed liquid after r...

Embodiment 3

[0034] Take 1.0kg of dried wakame sporophyll and wash it quickly, remove the sediment, soak in water at 60°C for 3 hours, rehydrate and soften, chop into small pieces of about 1 cm; add water at a material-to-liquid ratio of 1:8 and heat to 90°C, Terahertz wave circulation extraction for 3 hours, the extract was cooled to room temperature, filtered, and the filtrate was collected, then the filtrate was centrifuged, the supernatant was taken, concentrated to 1 / 4 of the volume of the original solution, and treated with terahertz wave circulation, the temperature of the feed liquid was 25°C, terahertz wave circulation treatment for 1 hour, to obtain terahertz wave treatment material liquid; quickly inject the treated material liquid into the strong cation tangential flow exchange system, the flow rate is 15L / h, cycle adsorption twice, enter the electrodialysis system, and enter The amount of material is 10L / h, and the adsorption is circulated for 30 minutes, and the cycle is repea...

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PUM

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Abstract

The invention discloses a method for extracting fucoidan sulfate from sporophyll of undaria pinnatifida and removing heavy metals, wherein the method includes the following steps: raw material pretreatment, fucosan sulfate extraction, heavy metal removal, algin removal by primary precipitation, and fucoidan sulfate production by secondary precipitation. Terahertz wave extraction is adopted, and the extraction efficiency is high. Heavy metals are treated and removed by combination of terahertz waves, ion exchange and electrodialysis, the removal range of heavy metal ions is wide and the removalrate is high. The purity of the obtained product is high, and the product can be used as health food raw materials to develop high value-added products and improves the economic value of raw materials.

Description

technical field [0001] The invention relates to a method for extracting polysaccharides and removing heavy metals by using terahertz waves, in particular to a method for extracting fucoidan sulfate from wakame spore leaves and removing heavy metals. Background technique [0002] Fucoidan sulfate is a marine plant polysaccharide, its main component is α-L-fucose sulfate, followed by a small amount of galactose, mannose, xylose, arabinose, uronic acid, etc., is a A water-soluble heteropolysaccharide. Because it naturally contains sulfate groups, it has the characteristics of anionic polymer compounds. Studies have shown that fucose sulfate has various physiological activities such as anticoagulation, lowering blood fat, antitumor, antivirus, promoting tissue regeneration, inhibiting gastric ulcer, and enhancing the body's immune function. Fucose sulfate is an excellent raw material for health food and medicine. [0003] There are many extraction methods for marine plant pol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B37/00
CPCC08B37/0003
Inventor 李冬梅朱蓓薇丛娅奇冷凯良那晓康启航杨静峰李德超秦磊王聪聪
Owner DALIAN POLYTECHNIC UNIVERSITY
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