Application of gerbera officinalis extract and preparation method of effective components thereof
A technology of Gerbera gerbera and its extract is applied in the field of application of Gerbera gerbera extract for inhibiting alpha-glucosidase and preparation of effective components thereof
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[0028] (1) Preparation of components
[0029] Get 180 g of Herbs sativa (through a 100-mesh sieve), ultrasonically extract with 5 times the amount of methanol solution (900ml) for 1 hour, filter, and then use 3 times the amount of methanol solution (540ml) for ultrasonic extraction of the filter residue twice, each time for 1 hour, Filtrate, combine the filtrates for 3 times and concentrate to 8.9g of extract (total extract of Herba chrysalis), add 3 times the amount of water (27ml) to mix and dissolve, first extract with 2 times the volume of petroleum ether, add acid to the water layer Adjust the pH value to 5, then extract with 2 times the volume of ethyl acetate, continue to extract the water layer with 2 times the amount of n-butanol, and concentrate the extracts respectively to obtain 2.6g of petroleum ether and 3.2g of ethyl acetate , n-butanol fraction 1.7g. The specific indicator process is as follows: figure 2 mentioned.
[0030] (2) Screening of active component...
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