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A kind of method for extracting taurine from oyster boiled liquor

A technology of boiling liquid and taurine, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of high cost of taurine raw materials, troublesome operation, high equipment investment, and achieve clarity and The effect of good quality, easy operation and low equipment investment

Active Publication Date: 2016-06-15
SHANDONG HOMEY AQUATIC DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the high cost of raw materials for extracting taurine from oyster meat, the high investment in equipment and the lack of troublesome operation in the process of desalination and purification using cation exchange resins in the production, the present invention provides a method for extracting taurine from oyster boiled liquid. sour method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for extracting taurine from oyster poached liquid, through the following process steps:

[0028] (1), select 2000L of oyster poached liquid as a raw material, concentrate it under reduced pressure, concentrate to a volume of 400L, and a solid content of 10%, to obtain a concentrated solution;

[0029] (2) Add acetic acid to the concentrated solution obtained in step (1) to adjust the pH value to 2.5, let it settle at 4°C for 24 hours, send it to a centrifuge, and centrifuge at a speed of 2000 rpm to collect the supernatant;

[0030] (3) Add sodium hydroxide to the supernatant obtained in step (2) to adjust the pH value to 10.5, let it settle at 4°C for 24 hours, send it to a centrifuge, and centrifuge at a controlled speed of 2000rpm to collect the supernatant;

[0031] (4) Desalting the supernatant obtained in step (3) by electrodialysis, stopping the reaction when the conductivity reaches 600 μS / cm, and collecting the desalted solution;

[0032] (5) Ultrafil...

Embodiment 2

[0038] A method for extracting taurine from oyster poached liquid, through the following process steps:

[0039] (1), select the oyster boiled liquid as 4000L raw material, concentrate it under reduced pressure, concentrate to a volume of 1000L, and a solid content of 5%, to obtain a concentrated solution;

[0040] (2) Add hydrochloric acid to the concentrated solution obtained in step (1) to adjust the pH value to 3, and let it settle at 5°C for 30 hours, send it to a centrifuge, and centrifuge at a speed of 4000 rpm to collect the supernatant;

[0041] (3) Add sodium hydroxide to the supernatant obtained in step (2) to adjust the pH value to 11, let it settle at 5°C for 30 hours, send it to a centrifuge, and centrifuge at a speed of 4000 rpm to collect the supernatant;

[0042](4) Desalting the supernatant obtained in step (3) by electrodialysis, stopping the reaction when the conductivity reaches 300 μS / cm, and collecting the desalted solution;

[0043] (5) Ultrafiltration...

Embodiment 3

[0048] A method for extracting taurine from oyster poached liquid, through the following process steps:

[0049] (1), select 4000L of oyster boiled liquid as raw material, concentrate it under reduced pressure, concentrate to a volume of 1500L, and a solid content of 15%, to obtain a concentrated solution;

[0050] (2) Add nitric acid to the concentrated solution obtained in step (1) to adjust the pH value to 2, let it settle for 36 hours at 8°C, send it to a centrifuge, centrifuge at a speed of 6000rpm, and collect the supernatant;

[0051] (3) Add potassium hydroxide to the supernatant obtained in step (2) to adjust the pH to 10, let it settle at 8°C for 36 hours, send it to a centrifuge, and centrifuge at a speed of 6000 rpm to collect the supernatant;

[0052] (4) Desalting the supernatant obtained in step (3) by electrodialysis, stopping the reaction when the conductivity reaches 1000 μS / cm, and collecting the desalted solution;

[0053] (5) Ultrafiltration is performed ...

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PUM

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Abstract

The invention relates to a method for extracting taurine from oyster boiled liquid. The method is to select oyster boiled liquid as a raw material to concentrate under reduced pressure, and the concentrated liquid is subjected to acid precipitation and alkali precipitation to obtain a supernatant liquid; the supernatant liquid is electrodialyzed Desalination, the desalted solution is subjected to ultrafiltration to remove impurities, and the filtrate is concentrated under reduced pressure, alcohol precipitation, and recrystallized twice to obtain pure taurine. The method for extracting taurine from oyster boiled liquid of the present invention has low investment in equipment, simple operation, high degree of automation, turns waste into valuables from oyster boiled liquid, and obtains taurine with a purity of more than 95%, reducing the impact on the environment. pollution.

Description

technical field [0001] The invention relates to the preparation of sulfonic acid, in particular to a method for extracting taurine from oyster boiled liquid. Background technique [0002] Taurine, also known as 2-aminoethanesulfonic acid, was first isolated from bezoar, hence the name. It is a sulfur-containing non-protein amino acid, which exists in a free state in the body and does not participate in the biosynthesis of proteins in the body. Fat emulsification, enhance human immunity, affect glucose metabolism, inhibit the occurrence and development of cataract, improve memory function, maintain normal reproductive function, etc. [0003] Taurine exists in almost all organisms, and the main organs of mammals, such as: heart, brain, and liver, have a higher content; marine animals such as squid, cuttlefish, fish, shellfish, etc. contain more taurine. sulfonic acid. Extraction of taurine from oysters has been reported, and the usual method is as follows: fresh oysters→was...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C309/14C07C303/44
Inventor 孙永军胡炜鞠文明唐晓波毕汝佳王志伟孙玥
Owner SHANDONG HOMEY AQUATIC DEV