Applications of lectuce tea total glycosides and method of preparing the same
A technology for total glycosides of Kudingcha and Kudingcha, applied in the new application and preparation field, can solve the problems of prolonging production time, affecting separation effect, organic solvent residue and the like, and achieving the advantages of shortening time, reducing cost and safe production process. Effect
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Embodiment 1
[0027] Example 1 The effect of total glycosides of Kudingcha on the levels of MDA, GSH and TG in the alcoholic liver of Kunming mice induced by ethanol
[0028] Test sample: the sample is Kudingcha total glycosides.
[0029] Dosage: There are three dosage groups of 0.22, 0.44, and 1.32g / kg BW, which are 5, 10, and 30 times the recommended daily dose for the human body. A blank control group and an ethanol control group are also set up. The doses are: 1) blank control group 0.00g / kgBW; 2) ethanol control group 0.00g / kg BW; 3) low dose group 0.22g / kg BW; 4) medium dose group 0.44g / kgBW; 5) high dose Group 1.32g / kg BW.
[0030] Preparation of test substance: Dilute 2.64g of test sample to 40.0ml with purified water every day to prepare the test substance of the high-dose group, then dilute 5.0 and 10.0ml of the test substance of the high-dose group to 30.0ml with purified water respectively. Low and middle dose groups of test substances.
[0031] The route of administration of...
Embodiment 2
[0036] Example 2 The effect of total glycosides of Kudingcha on the levels of ALT and AST in Kunming mice fatty liver induced by carbon tetrachloride
[0037] Test sample: the sample is Kudingcha total glycosides.
[0038] Dosage: There are three dosage groups of 0.22, 0.44, and 1.32g / kg BW, which are 5, 10, and 30 times the recommended daily dose for the human body. A blank control group and an ethanol control group are also set up. The doses are: 1) blank control group 0.00g / kgBW; 2) ethanol control group 0.00g / kg BW; 3) low dose group 0.22g / kg BW; 4) medium dose group 0.44g / kgBW; 5) high dose Group 1.32g / kg BW.
[0039] Preparation of test substance: Dilute 2.64g of test sample to 40.0ml with purified water every day to prepare the test substance of the high-dose group, then dilute 5.0 and 10.0ml of the test substance of the high-dose group to 30.0ml with purified water respectively. Low and middle dose groups of test substances.
[0040] The way of giving the test subst...
Embodiment 3
[0046] Embodiment 3 The preparation method of Kudingcha total glycosides of the present invention comprises the following steps:
[0047] A, weigh and pulverize the purchased Kudingcha that meets the quality standard requirements, and pass through a 20-mesh sieve to obtain raw materials;
[0048] B. Use 5 times the amount of 80% edible alcohol to reflux extract twice at 60°C, the first extraction time is 2 hours, the second extraction time is 1.5 hours, and the two extractions are combined;
[0049] C. Filter the above extract, concentrate under reduced pressure, control the concentration temperature to be 60°C, and the concentration pressure is -0.085mPa, and concentrate to ethanol extract with a relative density of 1.1 to 1.2;
[0050] D, the obtained concentrated extract, add 5 times the amount of pure water and fully stir for 15 minutes, after standing for 45 minutes, pour out the supernatant night, do this twice, combine the two aqueous solutions, and carry out centrifuga...
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