Preparation method of pure natural ligustrum quihoui carr fruit's anthocyanin
A pure natural, leaflet technology, applied in organic chemistry and other directions, can solve the problems of poor anthocyanin product safety, low anthocyanin purity, low selectivity, etc., to achieve easy in-depth purification and functional activity research, product safety and reliability, The effect of simple operation process
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Embodiment 1
[0029] (1) Take 100g of fresh privet fruit on campus, beat the fresh fruit of privet privet to make a pulp, mix it with 500mL after homogenization
[0030] Mix 60% ethanol solution containing 0.1wt% HCl, extract with closed light at 25°C for 12 hours, separate the extract from the pomace after extraction; add 500mL of 0.1wt% HCl to the obtained pomace Mix the ethanol solution with a mass fraction of 60%, extract at 30°C for 10 hours, filter, combine the two filtrates, and then use a concentration tank to concentrate under reduced pressure to 50mL at a temperature of 45°C and a vacuum of -0.08MPa, and recover ethanol , to obtain Ligustrum anthocyanin extract;
[0031] (2) Mix the above-mentioned privet privet fruit anthocyanin crude extract with 100mL of ethyl acetate, shake and mix well, then perform the first extraction, collect the lower aqueous solution; then mix the lower aqueous solution with ethyl acetate in equal volumes , fully oscillated and mixed for the second extr...
Embodiment 2
[0034] (1) Take 300g of cultivated frozen privet fruit, beat the fresh fruit of privet to obtain pulp, mix it with 1500mL ethanol containing 0.05wt% HCl with a mass fraction of 70%, and extract with closed light at 30°C After 12 hours, separate the extract from the pomace after extraction; add 500 mL of ethanol solution containing 60% mass fraction of 0.1wt% HCl to the obtained pomace to mix, extract for 10 hours at 30° C., filter, and combine the two The second filtrate is then concentrated to 200mL under reduced pressure in a concentration tank at a temperature of 45°C and a vacuum of -0.08MPa, and the ethanol is recovered to obtain an extract of privet fruit anthocyanins;
[0035] (2) Mix the crude extract of privet fruit anthocyanins with 300 mL of ethyl acetate, extract three times, each extraction time is 4 hours, the temperature is 25 ° C, recover ethyl acetate, collect the lower aqueous solution, and obtain cyanine prime extract;
[0036](3) Add 15mL of anthocyanin ex...
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