Method for extracting anti-diabetic effective part of olive leaf by adopting macro-porous resin adsorption
A technology of olive leaf and macroporous resin is applied in the field of using macroporous resin to absorb and extract effective anti-diabetic parts of olive leaf, and can solve problems such as large side effects, cross allergy, hyperlactatemia and the like
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Embodiment 1
[0054] Take the dried leaves of olive oil, add 6 times the amount of 40% ethanol, heat and reflux for extraction 3 times, 2 h each time, filter, combine the extracts, concentrate to 0.25 g / mL equivalent to the original medicinal material, and obtain the sample solution; The sample solution is absorbed by a chromatographic column filled with macroporous resin, and the resin is eluted with water for 3 BV, the elution flow rate is 4 BV / h, and the water eluent is discarded; then gradient elution is carried out with different concentrations of ethanol aqueous solution 5 BV, the flow rate was 4 BV / h, and the ethanol eluents were collected separately; the eluents were concentrated under reduced pressure and dried in vacuum to obtain different sample active sites, of which the D site was the anti-diabetic active site.
Embodiment 2
[0056] Take the dried leaves of olive oil, add 8 times the amount of 80% ethanol, heat and reflux for extraction twice, each time for 2 hours, filter, combine the extracts, concentrate to 0.3 g / mL equivalent to the original medicinal material, and obtain the sample solution; The sample solution is absorbed by a chromatographic column filled with macroporous resin, and the resin is eluted with water at 4 BV, the elution flow rate is 4 BV / h, and the water eluent is discarded; then gradient elution is carried out with different concentrations of ethanol aqueous solution 6 BV, the flow rate was 4 BV / h, and the ethanol eluate was collected separately; the eluate was concentrated under reduced pressure and dried in vacuum to obtain different active sites of the sample, among which the D site was the anti-diabetic active site.
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