Preparation method for extracting flavone from purslane and uses thereof
A technology of purslane and total flavonoids, applied in the field of medicine, to achieve the effect of scavenging free radicals, wide sources of raw materials, and enhancing immune function
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[0042] One, a kind of flow process that extracts total flavonoids from purslane is:
[0043] Fresh purslane processing → reflux extraction → suction filtration → supernatant → concentration → purification
[0044] Specific steps are as follows:
[0045] 1. Wash the fresh purslane with clean water, remove its leaves and roots, drain the water and hang it in a dark and ventilated place until the surface moisture is completely removed. The time is controlled at 20 or 21 or 22 or 23 or 24 hours.
[0046] 2. Cut the dried purslane stems into 0.8 or 0.9 or 1 or 1.1 or 1.2 cm short sticks.
[0047]3. Add 6 times the volume of 70% ethanol (mass ratio) to the purslane, reflux in a water bath at 78 or 79 or 80 or 81 or 82°C for 1 or 2 or 3 hours, and reflux for 4 or 3 or 2 times.
[0048] 4. Suction filter the solution obtained after reflux, leave the filtrate, discard impurities, and then mix the liquid obtained by reflux and suction filtration three times.
[0049] 5. Temperature ...
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