Gentiana scabra Bunge flower extraction liquid, preparation method and applications thereof
A technology of gentian flower and extracting liquid, which is applied in the field of extraction and application of plant components, and achieves the effects of optimized preparation process, good safety, good whitening effect and antioxidative effect.
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Embodiment 1
[0052] The present embodiment provides a kind of preparation method of gentian flower water extract, comprises the following steps:
[0053] Shaking: Grind gentian flowers, sieve, add water and soak under normal temperature and shaking conditions, the weight of water is 50 times the weight of gentian flowers, the soaking time is 1 hour, and the shaking frequency is 150 rev / min, and gentian is obtained Flower fluid;
[0054] Filtration: filter the gentian flower liquid in a), and dilute the filtrate to a crude drug concentration of 20 mg / ml to obtain the gentian flower water extract.
Embodiment 2
[0056] The present embodiment provides a kind of preparation method of gentian flower water extract, comprises the following steps:
[0057] Hot soaking: Grind gentian flower, sieve, add water and soak under stirring, the amount of water used is 50 times the weight of gentian flower, soaking temperature is 80°C, soaking time is 1 hour, and gentian flower liquid is obtained;
[0058] Filtration: filter the gentian flower liquid in a), and dilute the filtrate to a crude drug concentration of 20 mg / ml to obtain the gentian flower water extract.
Embodiment 3
[0060] The present embodiment provides a kind of preparation method of gentian flower water extract, comprises the following steps:
[0061] Ultrasound: Grind gentian flower, sieve, add water and ultrasonically extract for 1 hour, the amount of water used is 50 times the weight of gentian flower, and gentian flower liquid is obtained;
[0062] Filtration: filter the gentian flower liquid obtained in a), and dilute the filtrate to a crude drug concentration of 20 mg / ml to obtain the gentian flower water extract.
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