Application of Taurine Chelated Calcium in Preparation of Transdermal Absorption Preparation
A technology of taurine and chelated calcium, which is applied in skin care preparations, drug combinations, skin diseases, etc., can solve problems such as interference with calcium ion absorption, insufficient physiological activity, and difficulty in maintaining stable calcium ion balance in the epidermis. Effect of repairing skin barrier function, solving percutaneous absorption problem, and excellent percutaneous absorption effect
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Embodiment 1
[0063] 1. Preparation of chelated calcium taurine: In the experiment, taurine was used as a ligand, and calcium chloride, calcium carbonate, calcium phosphate, calcium hydrogen phosphate, calcium silicate, calcium lactate, calcium propionate, lemon One of calcium gluconate and calcium gluconate is used as a calcium source to provide central ion calcium to prepare amino acid chelated calcium for further experimental research, as follows:
[0064] 1) Weigh 45 g of taurine, dissolve it in a three-necked flask with 150 ml of deionized water, and heat it in a water bath to a constant temperature of 80°C until glutamic acid is completely dissolved;
[0065] 2) Weigh 20g of calcium lactate, completely dissolve in enough water, and adjust the pH to 7.8;
[0066] 3) Slowly add the calcium lactate solution prepared in 2) to the taurine solution in 1) drop by drop, stir gently while adding the calcium lactate solution, and keep a constant temperature during the stirring process;
[0067...
Embodiment 2
[0078] In this experiment, taurine was used as a ligand, and any one of calcium chloride, calcium carbonate, calcium phosphate, calcium hydrogen phosphate, calcium silicate, calcium lactate, calcium propionate, calcium citrate, and calcium gluconate was selected as the ligand. The calcium source of the central ion calcium is provided, and taurine chelated calcium with different chelation ratios is prepared.
[0079] Preparation of taurine-chelated calcium with a chelation ratio of taurine:calcium = 2:1
[0080] 1) Weigh 45 g of taurine, dissolve it in a three-necked flask with 150 ml of deionized water, and heat it in a water bath to a constant temperature of 80°C until the taurine is completely dissolved;
[0081] 2) Weigh 20g of calcium lactate, completely dissolve in enough water, and adjust the pH to 7.8;
[0082] 3) Slowly add the calcium lactate solution prepared in 2) to the taurine solution in 1) drop by drop, stir gently while adding the calcium lactate solution, and...
Embodiment 3
[0092] Stability investigation of calcium taurine chelate aqueous solution: this experiment is raw material with the taurine chelate calcium prepared in embodiment 1, and selects glutamic acid chelate calcium as comparison object, compares taurine chelate calcium and For the stability of the aqueous solution of other amino acid chelated calcium, preservatives should be added in the prepared aqueous solution, and the experimental results are as follows:
[0093] Table, stability of aqueous solutions of calcium taurine chelate-calcium glutamate chelate under different conditions
[0094]
[0095] As can be seen from the above test results: the stability of the aqueous solution of taurine chelated calcium is better than that of glutamic acid chelated calcium. For external liquid preparations, this stability is very necessary, indicating that it is more suitable for Preparation of aqueous preparations for external use, such as sprays, gels, lotions, liniments, etc.
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