Method for preparing anti-oxidant whitening cream from citrus peel
A technology of citrus peel and anti-oxidation, which is applied in preparations for toiletry, preparations for skin care, medical preparations containing active ingredients, etc. It can solve the problems of easy decomposition and instability, so as to achieve the goal of not easy to decompose, prevent skin aging, Reduces the effect of facial skin wrinkles and dark spots
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example 1
[0017] Soak citrus peels in water, then heat to 45°C, keep the temperature for 45 minutes and filter while hot, soak the filtered citrus peels in absolute ethanol, put them in a freezer, and freeze overnight at 2°C, Put the frozen citrus peel into a pulverizer to pulverize, pass through a 100-mesh sieve, mix the sieved particles with a 40% sodium carbonate solution in a mass ratio of 1:1, and put them in an autoclave; Use nitrogen to replace the air in the above-mentioned high-pressure reactor, and raise the pressure to 2MPa, then raise the temperature to 65°C, stir at 200r / min for 12min, then reduce the pressure to standard atmospheric pressure within 45s, discharge and filter, and filter Mix with petroleum ether at a solid-to-liquid ratio of 1:4, stir and mix at 100r / min for 3 hours, then filter, rinse the filtrate 3 times with distilled water, and then dry the filtrate in an oven at 60°C for 1 hour to obtain treated citrus peel; Treat citrus peels and mix them evenly with 1...
example 2
[0020]Soak citrus peels in water, heat to 50°C, keep the temperature for 50 minutes and filter while hot, soak the filtered citrus peels in absolute ethanol, put them in a freezer, and freeze overnight at 3°C. Put the frozen citrus peel into a pulverizer to pulverize, pass through a 100-mesh sieve, mix the sieved particles with a 40% sodium carbonate solution in a mass ratio of 1:1, and put them in an autoclave; Use nitrogen to replace the air in the above-mentioned high-pressure reactor, and raise the pressure to 3MPa, then raise the temperature to 70°C, stir at 200r / min for 15min, then reduce the pressure to standard atmospheric pressure within 50s, discharge and filter, and filter the Mix with petroleum ether at a solid-to-liquid ratio of 1:4, stir and mix at 100r / min for 4 hours, then filter, rinse the filtrate 4 times with distilled water, and then dry the filtrate in a 60°C oven for 2 hours to obtain treated citrus peel; Treat citrus peels and mix them evenly with 2% cel...
example 3
[0023] Soak citrus peels in water, then heat to 40°C, keep the temperature for 40 minutes and filter while hot, soak the filtered citrus peels in absolute ethanol, put them in a freezer, and freeze overnight at 1°C. Put the frozen citrus peel into a pulverizer to pulverize, pass through a 100-mesh sieve, mix the sieved particles with a 40% sodium carbonate solution in a mass ratio of 1:1, and put them in an autoclave; Use nitrogen to replace the air in the above-mentioned high-pressure reactor, and raise the pressure to 1MPa, then raise the temperature to 60°C, stir at 200r / min for 10min, and then reduce the pressure to standard atmospheric pressure within 40s, discharge and filter, and filter Mix with petroleum ether at a solid-to-liquid ratio of 1:4, stir and mix at 100r / min for 2h, then filter, rinse the filtrate 3 times with distilled water, and then dry the filtrate in an oven at 60°C for 1h to obtain treated citrus peel; Treat citrus peels and mix them evenly with 1% cel...
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