Simple method for extracting natural taurine

A taurine, natural technology, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry and other directions, can solve the problems of large environmental pollution, large number of ion exchange resin regeneration, high cost, high extraction rate and production cost. Low, high utilization effect

Active Publication Date: 2013-10-09
JIMEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process requires large-scale equipment and high cost
Moreover, the regeneration of ion exchange resin requires a large amount of acid and alkali, which causes great pollution to the environment.

Method used

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  • Simple method for extracting natural taurine
  • Simple method for extracting natural taurine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Extraction of natural taurine

[0032] (1) Raw material pretreatment: After cleaning the clams, cook them at 80°C for 60 minutes, collect the soup, heat and concentrate the soup to a solid content of 8%, and then use it as the raw material for extraction;

[0033] (2) Ethanol removal of impurities: Take 150 mL clam concentrated broth, add 450 mL 95% ethanol, stir at 70 °C for 40 min, and filter with suction to obtain the filtrate and precipitate. Add 100 mL of water and 450 mL of ethanol to the obtained precipitate, stir at 70 °C for 40 min, and filter with suction to obtain the filtrate and precipitate. Combine two filtrates to obtain supernatant;

[0034] (3) Concentration: The supernatant was concentrated by vacuum concentration to a soluble solid content of 44.5%. During the decompression concentration process, the temperature is kept at 70~80°C, and the vacuum degree is kept at -0.1~0.09 Mpa;

[0035] (4) Crystallization: After adding 3 times the v...

Embodiment 2

[0037] Example 2: Extraction of natural taurine

[0038] (1) Raw material pretreatment: After the clams were sanded and cleaned, they were steamed at 100 °C for 40 minutes, the soup was collected, and the soup was heated and concentrated to a solid content of 7% as the raw material for extraction;

[0039] (2) Ethanol removal of impurities: Take 300 mL clam concentrated broth, add 900 mL 95% ethanol, stir at 70 °C for 120 min, and obtain precipitate and filtrate. The filtrate was treated with activated carbon to obtain a supernatant;

[0040] (3) Concentration: The supernatant was concentrated by vacuum concentration to a soluble solid content of 48%. During the decompression concentration process, the temperature is kept at 70~80°C, and the vacuum degree is kept at -0.1~0.09 Mpa;

[0041] (4) Crystallization: After adding 3 times the volume of absolute ethanol to the concentrated solution, immediately remove impurities by suction filtration, and place the filtrate at 4 °C...

Embodiment 3

[0043] Example 3: Extraction of natural taurine

[0044] (1) Raw material pretreatment: after spitting and cleaning the variegated clams, steam them at 120 °C for 20 minutes, collect the soup, heat and concentrate the soup to a solid content of 8%, and then use it as the raw material for extraction;

[0045] (2) Ethanol removal of impurities: take 600 mL of concentrated clam broth, add 1800 mL of 95% ethanol, stir at 70 °C for 40 min, and obtain the precipitate and supernatant;

[0046](3) Concentration: The supernatant was concentrated by vacuum concentration to a soluble solid content of 45.5%. During the decompression concentration process, the temperature is kept at 70~80°C, and the vacuum degree is kept at -0.1~0.09 Mpa;

[0047] (4) Crystallization: After adding 3 times the volume of absolute ethanol to the concentrated solution, immediately remove impurities by suction filtration, and place the filtrate at 4 °C for more than 24 h to crystallize. Suction filtration a...

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Abstract

The invention provides a simple method for extracting natural taurine. The invention is characterized by comprising the following steps: raw material pretreatment: after cleaning seashells, boiling at high temperature, collecting the soup, and concentrating; impurity removal with ethanol: adding ethanol into the concentrated soup to obtain a precipitate and a supernatant; concentrating the supernatant to obtain a concentrated solution; crystallization: adding 3-4 times by volume of anhydrous ethanol into the concentrated solution, immediately carrying out vacuum filtration for impurity removal, standing the filtrate at 4 DEG C to crystallize for more than 24 hours, carrying out vacuum filtration, and drying the solid to obtain the taurine coarse crystal; and for enhancing the purity of the taurine, carrying out recrystallization one or more times as required. The method provided by the invention can effectively utilize seashell processing byproducts and enhance the utilization ratio of ocean resources. The invention has the advantages of simple technique, low extraction cost, high extraction rate, energy saving and environmental protection. The ethanol used in the method can be recycled, thereby being beneficial to industrialized production.

Description

technical field [0001] The invention relates to the field of marine product processing, and more specifically relates to a method for extracting natural taurine from soup obtained by cooking shellfish. Background technique [0002] Taurine is a sulfur-containing non-protein amino acid with a chemical name of 2-aminoethanesulfonic acid, which is an essential nutrient for the human body. Studies have shown that taurine can increase the ability of cells to resist oxidation, free radical damage and anti-virus damage. It is a good liver-protecting agent, which has the functions of increasing eyesight, promoting brain development, relieving fatigue, lowering cholesterol, reducing inflammation and analgesia, and has certain anti-tumor activity. Taurine is widely added to foods for infants and the elderly. With the continuous improvement of people's living standards and the gradual understanding of the functions of taurine, the market potential of taurine production is huge, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/14C07C303/44
Inventor 曹敏杰章骞蔡秋凤刘光明张凌晶
Owner JIMEI UNIV
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