Preparation method and applications of active matter capable of efficiently removing chloasma
A technology for actives and freckle removal. It is used in medical preparations containing active ingredients, preparations for skin care, and drug combinations. It can solve problems such as less use, and achieve enhanced solubility and penetration, which is conducive to efficient extraction and improvement. The effect of comprehensive utilization
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Embodiment 1
[0063] Embodiment 1: a kind of preparation method of highly efficient freckle-removing active substance is characterized in that: the following steps are adopted:
[0064] A. Pick fresh mugwort leaves, spread them flat on a drying sieve and dry them in a dryer for 6 hours at a drying temperature of 60°C until the water content of the mugwort leaves is less than 2% to obtain dried mugwort leaves; weigh an appropriate amount of dried mugwort leaves and add them to the Bottom flask, then add deionized water, the quality of deionized water is 5 times the quality of dry Artemisia argyi; use chemically pure concentrated hydrochloric acid to adjust the pH of the liquid in the flask to 2.0, place the round bottom flask in a 75°C water bath for heating and extraction, The liquid outlet of the condenser tube is used to receive the Artemisia argyi essential oil in an Erlenmeyer flask equipped with deionized water; when the yellow oily liquid is no longer produced after heating, stop heati...
Embodiment 2
[0069] A preparation method of high-efficiency freckle-removing active substances, characterized in that: the following steps are adopted:
[0070] A. Pick fresh mugwort leaves, spread them flat on a drying sieve and dry them in a dryer for 7 hours at 60°C until the water content of the mugwort leaves is less than 2% to obtain dried mugwort leaves; weigh an appropriate amount of dried mugwort leaves and add them to the Bottom flask, then add deionized water, the quality of deionized water is 8 times the quality of dried Artemisia argyi; use chemically pure concentrated hydrochloric acid to adjust the pH of the liquid in the flask to 2.5, place the round bottom flask in a water bath at 85°C for heating and extraction, The liquid outlet of the condenser tube is used to receive the Artemisia argyi essential oil in an Erlenmeyer flask equipped with deionized water; when the yellow oily liquid is no longer produced after heating, stop heating and extraction; filter the mixture in th...
Embodiment 3
[0075] A preparation method of high-efficiency freckle-removing active substances, characterized in that: the following steps are adopted:
[0076] A. Pick fresh mugwort leaves, spread them flat on a drying sieve and dry them in a dryer for 8 hours at 60°C until the water content of the mugwort leaves is less than 2% to obtain dried mugwort leaves; weigh an appropriate amount of dried mugwort leaves and add them to the Bottom flask, then add deionized water, the quality of deionized water is 10 times the quality of dried Artemisia argyi; use chemically pure concentrated hydrochloric acid to adjust the pH of the liquid in the flask to 3.0, place the round bottom flask in a 95°C water bath for heating and extraction, The liquid outlet of the condenser tube is used to receive the Artemisia argyi essential oil in an Erlenmeyer flask equipped with deionized water; when the yellow oily liquid is no longer produced after heating, stop heating and extraction; filter the mixture in the ...
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