A Simple Method for Extracting Natural Taurine
A taurine and natural technology, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of large environmental pollution, large amount of ion exchange resin regeneration, high cost, etc., and achieve high extraction rate and low production cost Low, the effect of improving the utilization rate
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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 min, collect the soup, and heat and concentrate the soup to a solid content of 8% as the raw material for extraction;
[0033] (2) Ethanol removal: Take 150 mL of concentrated clam soup, add 450 mL of 95% ethanol, stir at 70 °C for 40 min, and filter with suction to obtain filtrate and precipitate. 100 mL of water and 450 mL of ethanol were added to the obtained precipitate, stirred at 70 °C for 40 min, and suction filtered to obtain a filtrate and a precipitate. The two filtrates were combined to obtain a supernatant;
[0034] (3) Concentration: the supernatant was concentrated to a soluble solid content of 44.5% by concentration under reduced pressure. During the decompression concentration process, the temperature is kept at 70~80℃, and the vacuum degree is kept at -0.1~0.09 Mpa;
[0035] (4) Crystallization: Add 3 times the volum...
Embodiment 2
[0037] Example 2: Extraction of natural taurine
[0038] (1) Raw material pretreatment: After the clams were spit out and washed, they were cooked at 100 °C for 40 min, the soup was collected, and the soup was heated and concentrated to a solid content of 7% and used as the extraction raw material;
[0039] (2) Ethanol removal of impurities: take 300 mL of concentrated clam soup, add 900 mL of 95% ethanol, and stir at 70 °C for 120 min to obtain a precipitate and a filtrate. The filtrate is treated with activated carbon to obtain a supernatant;
[0040] (3) Concentration: the supernatant was concentrated to a soluble solid content of 48% by concentration under reduced pressure. During the decompression concentration process, the temperature is kept at 70~80℃, and the vacuum degree is kept at -0.1~0.09 Mpa;
[0041] (4) Crystallization: Add 3 times the volume of absolute ethanol to the concentrated solution, immediately remove impurities by suction filtration, and place the...
Embodiment 3
[0043] Example 3: Extraction of natural taurine
[0044] (1) Raw material pretreatment: After the variegated clams were spit and washed, they were cooked at 120 °C for 20 min, the soup was collected, and the soup was heated and concentrated to a solid content of 8% and used as the extraction raw material;
[0045] (2) Ethanol removal of impurities: take 600 mL of the concentrated soup of variegated clam, add 1800 mL of 95% ethanol, and stir at 70 °C for 40 min to obtain a precipitate and a supernatant;
[0046](3) Concentration: the supernatant was concentrated to a soluble solid content of 45.5% by vacuum concentration. During the decompression concentration process, the temperature is kept at 70~80℃, and the vacuum degree is kept at -0.1~0.09 Mpa;
[0047] (4) Crystallization: Add 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 crystallization for more than 24 hour...
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