Extraction method of seaweed polysaccharide

A seaweed polysaccharide and extraction method technology, applied in the field of seaweed polysaccharide extraction, can solve the problems of long cycle, destruction of effective components, low extraction rate, etc., and achieve the effects of simple method, small damage and improved extraction efficiency

Active Publication Date: 2015-09-09
HUNAN ER KANG PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition to their own unique advantages, most of the above methods have insurmountable shortcomings, such as long cycle, low extraction rate or large damage to active ingredients, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) After washing the raw materials of kelp and sargassum with clean water, dry them at 30°C for 12 hours. The water content of the raw materials is about 12%; then crush the raw materials and pass through a 60-mesh sieve;

[0029] (2) Add distilled water to the sieved pulverized matter at a solid-to-liquid ratio of 1:25 for ultra-high pressure extraction, pressurize at 200 MPa, and temperature at 30°C; hold the pressure for 3 minutes, and filter with suction to obtain the filtrate to obtain the crude seaweed polysaccharide extract;

[0030] (3) Add activated carbon to the crude extract so that the mass percentage of the crude extract and activated carbon is 0.6%, decolorize for 30 minutes, and filter to obtain a mixed solution;

[0031] (4) The mixed solution is concentrated by vacuum rotary evaporation, and the seaweed polysaccharide mixed solution is concentrated to a mass concentration of 70% at a temperature of 50°C and a vacuum of 10KPa; then the concentrated solut...

Embodiment 2

[0033] (1) Wash the macroalgae and Ascophyllum nodosum raw materials with clean water, and dry them at 38°C for about 14 hours. The water content of the raw materials is about 10%; then crush the raw materials and pass through a 60-mesh sieve;

[0034] (2) Add distilled water to the sieved pulverized matter at a solid-to-liquid ratio of 1:28 for ultra-high pressure extraction, pressurize at 267 MPa, and temperature at 43°C; hold the pressure for 4.7 minutes, and filter with suction to obtain the filtrate to obtain the crude seaweed polysaccharide extract;

[0035] (3) Add activated carbon to the crude extract so that the mass percentage of the crude extract and activated carbon is 1.5%, decolorize for 45 minutes, and filter to obtain a mixed solution;

[0036] (4) The mixed solution is concentrated by vacuum rotary evaporation. The seaweed polysaccharide mixed solution is concentrated to a mass concentration of 75.7% at a temperature of 66.7°C and a vacuum of 17KPa; then the co...

Embodiment 3

[0038] (1) Wash the raw materials of Ascophyllum nodosum and Fucus nodosum with clean water, and then dry them at 47°C for about 16 hours. The water content of the raw materials is about 8%. Then the raw material is pulverized and passed through a 60-mesh sieve;

[0039] (2) Add distilled water to the sieved pulverized matter at a solid-to-liquid ratio of 1:32 for ultra-high pressure extraction, pressurize at 334 MPa, and temperature at 57°C; keep the pressure for 6.4 minutes, and filter with suction to obtain the filtrate to obtain the crude seaweed polysaccharide extract;

[0040] (3) Add activated carbon to the crude extract so that the mass percentage of the crude extract and activated carbon is 2.4%, decolorize for 60 minutes, and filter to obtain a mixed solution;

[0041] (4) The mixed solution is concentrated by vacuum rotary evaporation. The seaweed polysaccharide mixed solution is concentrated to a mass concentration of 81.4% at a temperature of 83.4°C and a vacuum o...

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PUM

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Abstract

The invention discloses an extraction method of seaweed polysaccharide. The method consists of the following steps: (1) washing the raw material seaweed, drying and crushing and sieving with a 60-mesh sieve; (2) adding distilled water into the sieved crushed product accurately at a solid-liquid ratio of 1:(25-35), performing ultrahigh-pressure extraction, pressurizing to 200-400MPa and controlling the temperature to 30-70 DEG C, maintaining the pressure for 3-8 minutes, performing suction filtration and fetching the filtrate to obtain crude extract of seaweed polysaccharide; (3) adding activated carbon into the crude extract for decoloration, and filtering to obtain mixed liquid; and (4) further performing concentration, crystallization, filtration and drying of the mixed liquid to obtain a pure product of seaweed polysaccharide. The method disclosed by the invention is simple and easy to operate, takes short extraction time, is applicable to industrial production and can be used for obtaining a seaweed polysaccharide product with high purity and few impurities and free from microbial infestation.

Description

technical field [0001] The invention relates to a method for extracting seaweed polysaccharide, in particular to a method for extracting seaweed polysaccharide assisted by ultra-high pressure. Background technique [0002] Seaweed belongs to lower plants and is the primary producer in the ocean. It is mainly divided into four categories—cyanobacteria, green algae, red dates and brown algae. It also includes microalgae such as diatoms, dinoflagellates, and golden algae. It has great potential for industrial development. , has a close relationship with human life and economic development, and is widely used in marine medicine, functional food, development and application of biologically active substances, food additives, organic fertilizers, food packaging materials, cosmetics and other fields. [0003] Polysaccharides are widely distributed in nature, perform different functions in organisms, and are the material basis of life. In recent years, a large number of studies have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00
Inventor 帅放文王向峰章家伟
Owner HUNAN ER KANG PHARMA
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