Kidney tea extract and its preparing process and application
A technology of extract and kidney tea, applied in the field of water-soluble phenolic acid extract
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Embodiment 1
[0042] Example 1 Preparation of kidney tea phenolic acid extract T1 of the present invention Take 1000 grams of kidney tea (Clerodendranthus Spicatus (Thunb) CYWU), after pulverization, reflux twice with 50% ethanol for 2 hours each time. The reflux filtrates were combined, and the ethanol was distilled off under reduced pressure to obtain a concentrated aqueous solution, which was diluted with deionized water, centrifuged, and set aside. Get D-101 type macroporous resin packing column, above-mentioned aqueous solution passes through this macroporous resin column with the flow velocity of 20 milliliters / minute, then wash column with 500 milliliters of deionized water with the flow velocity of 20 milliliters / minute, then use 10% ethanol Eluted, discarded, and then eluted with 50% ethanol. The eluents were combined, concentrated under reduced pressure, and dried in vacuo to obtain 39.8 g of kidney tea phenolic acid extract T1 dry powder (yield about 4%). The kidney tea phenolic ...
Embodiment 2
[0043] Example 2 Preparation of Kidney tea phenolic acid extract T2 of the present invention Take 1000 grams of Kidney tea (Clerodendranthus Spicatus (Thunb) CYWU), after pulverization, reflux twice with 30% ethanol for 2 hours each time. The reflux filtrates were combined, and the ethanol was distilled off under reduced pressure to obtain a concentrated aqueous solution, which was diluted with deionized water, centrifuged, and set aside. Get D-101 type macroporous resin packing column, above-mentioned aqueous solution passes through this macroporous resin column with the flow velocity of 20 milliliters / minute, then wash column with 500 milliliters of deionized water with the flow velocity of 20 milliliters / minute, then use 10% ethanol Eluted, discarded, and then eluted with 30% ethanol. The eluents were combined, concentrated under reduced pressure, and dried in vacuo to obtain 49.8 g of kidney tea phenolic acid extract T1 dry powder (yield about 5%). The kidney tea phenolic ...
Embodiment 3
[0044] Example 3 Preparation of kidney tea phenolic acid extract T3 of the present invention Take 1000 grams of kidney tea (Clerodendranthus Spicatus (Thunb) CYWU), after crushing, reflux twice with 50% ethanol for 4 hours each time. The reflux filtrates were combined, and the ethanol was distilled off under reduced pressure to obtain a concentrated aqueous solution, which was diluted with deionized water, centrifuged, and set aside. Get D-101 type macroporous resin packing column, above-mentioned aqueous solution passes through this macroporous resin column with the flow velocity of 20 milliliters / minute, then wash column with 500 milliliters of deionized water with the flow velocity of 20 milliliters / minute, then use 10% ethanol Eluted, discarded, and then eluted with 40% ethanol. The eluents were combined, concentrated under reduced pressure, and dried in vacuo to obtain 45.8 g of kidney tea phenolic acid extract T1 dry powder (yield about 4.5%). The kidney tea phenolic aci...
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