Method for preparing goat's horn extraction
An extract and goat horn technology, which is applied in the preparation of organic compounds, cyanide reaction preparation, chemical instruments and methods, etc., can solve the problems of low utilization rate of goat horn medicinal materials, and achieves simple method, high extraction rate, and reduction of intermediate The effect of product formation
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Embodiment 1
[0027] Weigh 1000g of decoction pieces of goat horn, add 8 times the amount of 8mol / L hydrochloric acid 8000ml, heat to reflux (105°C) for 16 hours, until the hydrolysis is complete (no medicinal material particles), let cool, filter, and wash the precipitate twice with purified water. 200ml each time, combine the filtrate and lotion, adjust the pH value to 4.5 with about 1200ml of 16% milk of lime, stir fully, make the reaction complete, filter, and wash the precipitate three times with 80°C purified water, 1500ml each time, test with ninhydrin Liquid test, the final lotion was negative; the combined filtrate and lotion were concentrated to a relative density of 1.05 (60°C), let cool, and obtained 2200ml, slowly added 95% ethanol under stirring to make the alcohol content reach 60%, and refrigerated (5°C ) for 24 hours, removed, filtered, ethanol was recovered from the filtrate, concentrated to a relative density of 1.05 (60° C.) to obtain 1500 ml, 22.5 g of activated carbon w...
Embodiment 2
[0029] Same as Example 1, except that 8 mol / L hydrochloric acid is used for hydrolysis instead of 4 mol / L sulfuric acid, the yield is 26.8%, and the total amino acid content is 74.5%.
Embodiment 3
[0031] Weigh 250g of decoction pieces of goat's horn, add 8 times the amount of 8mol / L hydrochloric acid 2000ml and heat to reflux (105°C) for 16 hours until the hydrolysis is complete (no medicinal material particles), let cool, filter, and wash the precipitate twice with purified water. 200ml each time, combined filtrate and washing liquid, passed through D301 type weakly basic anion exchange resin column (12×120cm), washed with water until neutral, collected eluate, then passed through 732 type strong acidic cation exchange resin column (10×100cm) , washed with water until neutral, the effluent was colorless, the washing solution was discarded, and eluted with 1.5% ammonia water until the pH value reached 12, the collected ammonia water eluate was concentrated under reduced pressure to a thick paste, dried under vacuum at 60°C to obtain goat horn extract The yield was 70.0%, and the total amino acid content was 82.6%.
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