Extraction method for high-purity high-oxidative-activity aronia melanocarpa procyanidine
A technology for proanthocyanidins of aronia and aronia nigra, applied in the field of extraction and purification of proanthocyanidins, can solve the problems of inactivation, low purity, and low extraction rate of proanthocyanidins, and achieves maintaining biological activity, high purity, and avoiding the environment. Effects of problems and security concerns
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Embodiment 1
[0019] Select mature and pest-free raw materials of Sorbus adenocarpus, use a tissue grinder to beat the pulp, put the pulp in -40°C for 4 hours, put it on a freeze-drying tray, the material thickness is 3-4mm, and the temperature of the cold trap is -50°C , and then freeze-dried on a freeze dryer for 18 hours. After drying, the freeze-dried powder is pulverized with a pulverizer, and then passed through a 100-mesh sieve to obtain the freeze-dried powder of Aronia nigra.
[0020] Take 500g of freeze-dried powder and carry out supercritical CO 2 Extraction, extraction pressure 35MPa, extraction time 90min, extraction temperature 45°C, solid-liquid ratio 1:1.08, 60% ethanol as entrainer, extract proanthocyanidins under these conditions.
[0021] Supercritical CO 2 The extract was purified with AB-8 macroporous adsorption resin, the diameter of the adsorption column was 24mm, the ratio of height to diameter of the adsorption column was 10, the concentration of the stock solutio...
Embodiment 2
[0023] Select mature and pest-free raw materials of Sorbus adenocarpus, use a tissue grinder to beat the pulp, put the pulp in -40°C for 4 hours, put it on a freeze-drying tray, the material thickness is 3-4mm, and the temperature of the cold trap is -50°C , and then freeze-dried on a freeze dryer for 18 hours. After drying, the freeze-dried powder is pulverized with a pulverizer, and then passed through a 100-mesh sieve to obtain the freeze-dried powder of Aronia nigra.
[0024] Take 500g of freeze-dried powder and carry out supercritical CO 2Extraction, extraction pressure 30MPa, extraction temperature 45°C, extraction time 90min, solid-liquid ratio 1:1.08, 60% ethanol as entrainer, extract proanthocyanidins under these conditions.
[0025] Supercritical CO 2 The extract was purified with AB-8 macroporous adsorption resin, the diameter of the adsorption column was 24mm, the ratio of height to diameter of the adsorption column was 10, the concentration of the stock solution...
Embodiment 3
[0027] Select mature and pest-free raw materials of Sorbus adenocarpus, use a tissue grinder to beat the pulp, put the pulp in -40°C for 4 hours, put it on a freeze-drying tray, the material thickness is 3-4mm, and the temperature of the cold trap is -50°C , and then freeze-dried on a freeze dryer for 18 hours. After drying, the freeze-dried powder is pulverized with a pulverizer, and then passed through a 100-mesh sieve to obtain the freeze-dried powder of Aronia nigra.
[0028] Take 500g of freeze-dried powder and carry out supercritical CO 2 Extraction, extraction pressure 40MPa, extraction time 90min, extraction temperature 45°C, solid-liquid ratio 1:1.08, 60% ethanol as entrainer, extract proanthocyanidins under these conditions.
[0029] Supercritical CO 2 The extract was purified with AB-8 macroporous adsorption resin, the diameter of the adsorption column was 24mm, the ratio of height to diameter of the adsorption column was 10, the concentration of the stock solutio...
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