Method for extracting colloid

A technology of colloid and extract, which is applied in the field of chemical industry and can solve problems such as environmental pollution

Inactive Publication Date: 2014-06-04
IMDERMA LAB CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present invention provides a method for extracting colloids, which is used to solve the problem of using a large amount of lye to extract colloids in algae in the traditional alkaline process in the prior art, so a large amount of alkaline waste liquid is produced in the process , causing serious environmental pollution

Method used

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  • Method for extracting colloid
  • Method for extracting colloid

Examples

Experimental program
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Effect test

Embodiment 1

[0070] Embodiment 1 Soaking agent is urea, alcohols or surfactant.

[0071] First weigh 10 grams of Eucheuma auricularis, and wash the Eucheuma auricularis with a large amount of clear water; add the cleaned Eucheuma auris into the soaking agent (the soaking agent can be selected from the following table 1), and soak for 24 hours , the temperature of soaking the medicament is 45°C; the Eucheuma auricularis after soaking in the medicament is washed again with a large amount of clear water to obtain an extract to be extracted; adding potassium chloride with a concentration of 2% by weight is added to the extract to be extracted Heating and boiling the glue, the temperature of the glue boiling is 70°C-100°C (preferably 95°C-100°C), the cooking time of the glue is 2 hours, and the glue is obtained; the filter aid diatomaceous earth is added to the glue, and At a temperature of 70°C-100°C, filter with filter paper to obtain the filtrate; use the freeze-thaw method to separate the c...

Embodiment 2

[0082] Example 2 Extraction of colloids in Pteris chinensis, Eucheuma heterocladum and Eucheuma auris.

[0083] Take 10 grams of algae by weighing (respectively the three kinds of algae enumerated in the following table 3), and clean this algae with a large amount of clear water; Add the urea aqueous solution that the weight percent concentration of urea in water is 1% to the algae after cleaning, soaking temperature is 45°C, soaking time is 24 hours; wash the algae soaked in the agent with a large amount of water again to obtain an extract; add potassium chloride with a concentration of 2% by weight, heat and boil the extract The temperature is 70°C-100°C (preferably, 95°C-100°C), and the time for cooking the glue is 2 hours to obtain the glue; Suction filtration with filter paper at 70°C-100°C to obtain filtrate; separate the colloid from the filtrate by freeze-thaw method; dry the colloid to obtain the finished product.

[0084] According to the test, it is determined that...

Embodiment 3

[0087] Example 3 The soaking agent is a combination of urea or alkali.

[0088] Weighing takes 30 grams of algae (Europa auricularis), and cleans this algae with a large amount of clear water; The algae after cleaning is added the urea aqueous solution that the weight percentage concentration of urea in water is 1%, 5% or 10%, and sodium hydroxide The weight percent concentration in water is 0% (no addition), 3% or 9% sodium hydroxide aqueous solution for immersion, the immersion temperature is 0 ℃, 25 ℃ and 45 ℃ respectively, and the immersion time is 1, 3 and 6 hours respectively ; Wash the algae soaked in the medicament with a large amount of water again to obtain an extract; add potassium chloride with a concentration of 2% by weight, and heat and boil the extract to be gelatinized. The temperature of the boiled gelatin is 70°C-100°C (Preferably, 95°C-100°C), boil the glue for 2 hours to obtain the glue; add filter aid diatomaceous earth to the obtained glue, and use filte...

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Abstract

The invention relates to the field of a chemical industry, and particularly relates to a method for extracting colloid, which is used for solving the problems that colloid in algae is extracted by a lot of alkali liquor in the traditional alkali process, and a lot of alkali wastes are generated, thus resulting in great environmental pollution. The method for extracting the colloid provided by the embodiment of the invention comprises the following steps: taking a natural raw material containing colloid, rinsing the natural raw material by water; soaking by the washed natural raw material by adding a drug; rinsing the natural raw material soaked by the drug by water again to obtain a to-be-extracted substance; cooking the to-be-extracted substance to obtain liquid cement; filtering the liquid cement to obtain filtrate; and separating out the colloid from the filtrate, drying and crushing the colloid, wherein the drug is one or water solution combination of more than two of urea, an interfacial agent or alcohol. By adopting the method disclosed by the embodiment of the invention, the pollution to the environment is reduced.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a method for extracting colloids. Background technique [0002] Carrageenan is an important food gum, which is widely used in the food industry. The raw materials for the production of carrageenan include red algae, brown algae and other algae plants, among which the red algae plants mainly include carrageenan, Eucheuma, and sand vegetable, so carrageenan is also commonly known as carrageenan, carrageenan, and Irish carrageenan . At present, the most widely used raw material for industrial production of carrageenan is Eucheuma, which belongs to seaweed. The largest source of raw materials for carrageenan production is the Philippines. Seaweed cultivated in the Philippines accounts for about 80% of the world’s supply. The most commonly used Eucheuma is the The two species are Eucheuma cottonii and Eucheuma spinosum, which account for three-quarters of the world's total carrageen...

Claims

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Application Information

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IPC IPC(8): C08B37/00
Inventor 李宗翰黄钰林赖惠敏李增澎
Owner IMDERMA LAB CO LTD
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