Method for extracting fucoidan and removing heavy metals from kelps

A technology of fucoidan and heavy metals, which is applied in the field of marine biology, can solve the problems of little research and harm to human body, and achieve the effect of simple steps, less impurity content and high extraction efficiency

Active Publication Date: 2013-11-13
福建华尔康生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Once the unremoved fucoidan is ingested, the heavy metals in it will be dissociated through the acidic digestive system, which will cause potential harm to the hum

Method used

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  • Method for extracting fucoidan and removing heavy metals from kelps
  • Method for extracting fucoidan and removing heavy metals from kelps

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take about 1.5kg of dried kelp, remove impurities, wash, dry in the air at a constant temperature of 60°C, and crush to 50 meshes to obtain kelp powder. Take 1kg of kelp powder, add 10L of 10g / L CaCl 2 The solution is extracted with ultrasonic waves, and the extraction conditions are as follows: the ultrasonic power is 500W, the temperature is 35°C, and the extraction time is 40min. After the extraction was completed, the extract was cooled to room temperature, filtered through a 60-mesh nylon mesh, the filtrate was collected, and then the filtrate was centrifuged to obtain the supernatant. Add 5 times the volume of chitosan acetic acid solution to the supernatant, stir for 30 min, centrifuge, and collect the precipitate. The preparation method of the chitosan solution is as follows: add 1 g of chitosan powder with a molecular weight of 300,000 and a deacetylation degree of 90% to 1% acetic acid, heat to 40° C., and stir until completely dissolved.

[0028] Add 3 time...

Embodiment 2

[0031] Take about 1.5kg of dried kelp, remove impurities, wash, dry in the air at a constant temperature of 60°C, and crush to 50 meshes to obtain kelp powder. Take 1kg of kelp powder, add 10L of 10g / L CaCl 2 The solution is extracted with ultrasonic waves, and the extraction conditions are as follows: the ultrasonic power is 500W, the temperature is 30°C, and the extraction time is 30 minutes. After the extraction was completed, the extract was cooled to room temperature, filtered through a 60-mesh nylon mesh, the filtrate was collected, and then the filtrate was centrifuged to obtain the supernatant. Add 5 times the volume of chitosan acetic acid solution to the supernatant, stir for 30 min, centrifuge, and collect the precipitate. Described chitosan solution is with embodiment 1.

[0032] Add 4 times the volume of 3mol / L CaCl to the above-mentioned precipitate 2 Add the solution while stirring, let stand for 30min, centrifuge, and take the supernatant. Add the same volu...

Embodiment 3

[0035] Sea-tangle powder, the relevant components of the products obtained in Examples 1 and 2, and the content of heavy metals are detected, and the results are shown in Table 1.

[0036] Table 1 Comparison of components and heavy metal contents between kelp powder and fucoidan

[0037]

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Abstract

The invention discloses a method for extracting fucoidan and removing heavy metals from kelps. The method comprises the following steps of: pre-treating raw materials; extracting the fucoidan; settling to obtain a crude product of the fucoidan; reversely extracting the fucoidan; removing the heavy metals; and secondarily settling to obtain the fucoidan. According to the invention, normal temperature ultrasonic extraction is adopted, so that the extracting efficiency is high, and the economic value of the kelps is increased; the cost and the energy consumption can be reduced, and the environment can not be polluted; and the obtained product is high in purity, low in impurity content, safe in eating and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of marine organisms, and in particular relates to a method for extracting fucoidan from kelp and removing heavy metals. Background technique [0002] Fucoidan, also known as fucoidan sulfate and fucoidan sulfate, is a unique polysaccharide component in brown algae plants (such as kelp and kelp). It is an intercellular polysaccharide with complex composition and structure. The main component is L-fucose, and also contains a small amount of galactose, xylose, mannose and uronic acid. Studies have shown that fucoidan has various physiological activities such as anticoagulation, lowering blood fat, anti-chronic renal failure, anti-tumor, anti-virus, promoting tissue regeneration, inhibiting gastric ulcer, and enhancing the body's immune function. It is an excellent health food , Drug raw materials, its research and development has attracted more and more attention at home and abroad. Kelp is a large marine bro...

Claims

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Application Information

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IPC IPC(8): C08B37/04
Inventor 魏巧容郭耀荣张河溪郭震宇吴松刚黄建忠林金科
Owner 福建华尔康生物科技有限公司
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