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Kelp deep processing method

A technology for deep processing and macroalgae, applied in chemical instruments and methods, preparation of monosaccharides and sugar derivatives, etc., can solve the problems of low yield and high cost, and achieve the effects of improved yield, high output efficiency and simple operation.

Active Publication Date: 2015-01-28
青岛海百合生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of high cost and low yield in the prior art, and seek to design a method for deep processing of macroalgae, using macroalgae as raw material to obtain filtrate and macroalgae residue after soaking and water extraction, the filtrate is filtered, Concentrate, precipitate and dry to obtain fucose with various biological activities; macroalgal residue is digested, diluted, filtered, acid-precipitated, alkali-dissolved and alcohol-precipitated to obtain sodium alginate

Method used

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  • Kelp deep processing method

Examples

Experimental program
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Effect test

Embodiment 1

[0014] Take 20g of dried macroalgae, soak in 200ml of distilled water for 8 hours, extract in a water bath at 70°C for 8 hours, obtain the filtrate and macroalgae residue after coarse filtration, and ultrafiltrate the filtrate through a membrane with a molecular weight cut-off of 3600Da to obtain the permeate and concentrate Wherein the permeated liquid can be used as the raw material for extracting iodine and mannitol; the concentrated liquid is conventionally concentrated by vacuum distillation and then added with 3 times the volume of 95% ethanol aqueous solution, placed under temperature control at 4°C for 12 hours, and then centrifuged, After precipitation and drying, fucose was obtained, and the extraction rate of fucose was 0.6%; adding weight percent concentration of 0.5% sodium carbonate (NaCO 3 ) aqueous solution 150ml, extracted for 1 hour, after dilution and filtration, the pH value was adjusted to 2, and after filtration, adding 400ml of sodium hydroxide (NaOH) aqu...

Embodiment 2

[0016] Take 20g of dried macroalgae, add 200ml of distilled water to soak for 0.5 hours, extract in a water bath at 90°C for 8 hours, obtain filtrate and macroalgae residue after coarse filtration, and ultrafiltrate the filtrate through a membrane with a molecular weight cut-off of 5000Da to obtain permeate and concentrate Wherein the permeated liquid can be used as the raw material for extracting iodine and mannitol; the concentrated liquid is conventionally concentrated by vacuum distillation and then added with 3 times the volume of 95% ethanol aqueous solution, placed under temperature control at 4°C for 12 hours, and then centrifuged, After precipitation and drying, fucose was obtained, and the extraction rate of fucose was 0.8%; adding 3% sodium carbonate (NaCO 3 ) aqueous solution 150ml, extracted for 20 hours, after dilution and filtration, the pH value was adjusted to 2, and after filtration, adding 300ml of sodium hydroxide (NaOH) aqueous solution with a weight percen...

Embodiment 3

[0018] Take 20g of dried macroalgae, add 200ml of distilled water to soak for 48 hours, extract in a water bath at 80°C for 24 hours, obtain the filtrate and macroalgae residue after coarse filtration, and ultrafiltrate the filtrate through a membrane with a molecular weight cut-off of 3600Da to obtain the permeate and concentrate Wherein the permeated liquid can be used as the raw material for extracting iodine and mannitol; the concentrated liquid is conventionally concentrated by vacuum distillation and then added with 3 times the volume of 95% ethanol aqueous solution, placed under temperature control at 4°C for 12 hours, and then centrifuged, After precipitation and drying, fucose was obtained, and the extraction rate of fucose was 1.0%; sodium carbonate (NaCO 3 ) aqueous solution 150ml, extracted for 48 hours, after dilution and filtration, the pH value was adjusted to 2, and after filtration, adding 500ml of sodium hydroxide (NaOH) aqueous solution with a weight percenta...

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Abstract

The invention belongs to the technical field of marine chemical engineering and relates to a comprehensive utilization deep processing method for kelp. According to the comprehensive utilization deep processing method for the kelp, various decomposers can be extracted and separated from the kelp; after the kelp is soaked and is subjected to water extraction, filtrate and kelp residues are obtained; after the filtrate is ultra-filtered, permeate and concentrated solution are obtained; the permeate can be used as a raw material for extracting iodine and mannitol; the concentrated solution is concentrated, deposited and dried to obtain fucose with very high medical value; the kelp residues are subjected to alkaline extraction, acid precipitation, alkali dissolution and alcohol precipitation to obtain sodium alginate. According to the method, a process of extracting the fucose is added, so that the yield of sodium alginate is obviously improved, the comprehensive utilization value of the kelp is greatly increased, and the technical improvement of the seaweed gel industry is promoted; the operation is simple, the conditions are easy to control, the cost is low, the output efficiency is high and the purity of a finished product is high.

Description

Technical field: [0001] The invention belongs to the technical field of marine chemical engineering, and relates to a comprehensive utilization and deep processing method for giant algae, which can simultaneously obtain multiple products such as fucose and sodium alginate, and realizes the effective utilization of resources. Background technique: [0002] Macroalgae is a genus of macroalgae belonging to the family Macrophyceae of the order Phaeophyta kelp. Because its individuals are more than 100 meters long, mature macroalgae are generally 70 to 80 meters long, and the longest can reach 500 meters, so they are called macroalgae. Giant algae; the main value of giant algae is an important raw material in the fields of chemical industry, energy, medicine, etc. After crushing the plant body of giant algae and adding microorganisms to ferment for a few days, every 1,000 tons of raw materials can produce 4,000 cubic meters of methane. Combustible gas with a conversion rate of ov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/04C07H3/02C07H1/08C07C31/26C07C29/76
Inventor 杨升峰李洪峰
Owner 青岛海百合生物技术有限公司
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