Method of preparing Rhodiola sacra glycoside
A technology of salidroside and extraction liquid, which is applied in the field of medicine, can solve the problems of occupying a large area of arable land, difficult to mass-produce, serious root rot of seedlings, etc., and achieves the effects of high safety, easy recovery and easy acquisition.
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Embodiment 1
[0013] Embodiment 1: After 1 kg of Ligustrum lucidum is crushed, add 3 kg of 80% ethanol, stir evenly and fully mix, soak for 48 hours, reclaim the filtrate, extract three times, combine the filtrate, recycle the ethanol under reduced pressure to obtain the salidroside extract; The extract was adsorbed by weak polarity AB-8 macroporous adsorption resin for 30min, washed with pure water until the Molish reaction was negative, then eluted with 2 times the amount of 30% ethanol, the eluate was recovered and concentrated by ethanol, and then Weakly polar AB-8 macroporous adsorption resin was adsorbed for 30 minutes, washed with pure water until the Molish reaction was negative, and then eluted with 2 times the amount of 30% ethanol. The eluent was recovered from ethanol and concentrated, and dried in vacuum to obtain Salidroside crude product 3.065g. The prepared crude salidroside was further purified by a polyamide column and detected under the following chromatographic condition...
Embodiment 2
[0014] Embodiment 2: After 1 kg of Ligustrum lucidum was crushed, 3 kg of 70% ethanol was added, stirred evenly and fully mixed, soaked for 72 hours, the filtrate was recovered, extracted twice, the filtrate was combined, and the ethanol was recovered under reduced pressure to obtain a salidroside extract; The extract was adsorbed by weakly polar AB-8 macroporous adsorption resin for 30 minutes, washed with pure water until the Molish reaction was negative, and then eluted with 2 times the amount of 35% ethanol, and the eluate was recovered and concentrated by ethanol, and then Adsorbed by weakly polar AB-8 macroporous adsorption resin for 30 minutes, rinsed with pure water until the Molish reaction was negative, then eluted with 2 times the amount of 35% ethanol, the eluate was recovered from ethanol and concentrated, and dried in vacuum to obtain Salidroside crude product 2.9.88g. After the prepared crude salidroside was further purified by a polyamide column, the content of...
Embodiment 3
[0015] Embodiment 3: After 1kg of Ligustrum lucidum is pulverized, add 4kg of 60% ethanol, stir evenly and fully mix, soak for 72 hours, reclaim the filtrate, extract three times, combine the filtrate, recycle the ethanol under reduced pressure to obtain the salidroside extract; The extract was absorbed by weak polarity AB-8 macroporous adsorption resin for 30min, washed with pure water until the Molish reaction was negative, and then eluted with 2 times the amount of 35% ethanol, the eluate was recovered and concentrated by ethanol, and then Weakly polar AB-8 macroporous adsorption resin was adsorbed for 30 minutes, washed with pure water until the Molish reaction was negative, and then eluted with 2 times the amount of 35% ethanol. The eluate was recovered from ethanol and concentrated, and it was red after vacuum drying. Crude sedroside 3.012g. After the prepared crude salidroside was further purified by a polyamide column, the content of salidroside in the crude salidrosid...
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