Gallic acid chelates composition and uses thereof
A technology of gallic acid and chelate compound, which can be used in drug combinations, medical preparations containing active ingredients, metabolic diseases, etc., can solve the problems of high toxicity, high price, unsatisfactory absorption rate, etc., and achieve the effect of high absorption rate
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Embodiment 1
[0017] Embodiment 1 Preparation of gallic acid chelated calcium
[0018] Add 8.5g of gallic acid to 50ml of 65% ethanol aqueous solution, stir, and heat to 60°C to dissolve the sample completely. Add 10 g of calcium carbonate in batches without stopping the stirring, and continue stirring at a constant temperature until no bubbles are generated. After cooling to room temperature, cool in an ice bath until the calcium gallate chelate precipitates completely. The reactant was suction-filtered, the solid was washed with ethanol, and vacuum-dried at room temperature to obtain 12.3 g of gallic acid chelated calcium (97.5% yield).
Embodiment 2
[0019] Embodiment 2 Preparation of gallic acid chelated magnesium
[0020] Add 6.8g of gallic acid to 50ml of 65% ethanol aqueous solution, stir, and heat to 50°C to dissolve the sample completely. Add 6.8 g of magnesium carbonate in batches while stirring, and continue stirring at constant temperature until no bubbles are generated. The reactant was cooled to room temperature, cooled in an ice bath until the precipitation was complete, and filtered with suction. The obtained solid was washed with ethanol, and dried under vacuum at room temperature to obtain 8.0 g of magnesium gallic acid chelate (yield 92%).
Embodiment 3
[0021] Embodiment 3 Preparation of gallic acid chelated zinc
[0022] Add 6.8g of gallic acid to 50ml of 75% ethanol aqueous solution, stir, and heat to 50°C to dissolve the sample completely. While stirring, add zinc carbonate 10g in batches, keep stirring at constant temperature until no bubbles are generated. The reactant was cooled to room temperature, cooled in an ice bath until the precipitation was complete, and filtered with suction. The obtained solid was washed with ethanol, and dried under vacuum at room temperature to obtain 10.2 g of gallic acid chelated zinc (91.2% yield).
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