Effective part of traditional Chinese medicine ground bamboo shoot for antineoplastic and oxidation resistance function, their preparing process and application
An anti-tumor effect and anti-oxidation technology, which is applied in the direction of anti-tumor drugs, medical preparations containing active ingredients, pharmaceutical formulas, etc., can solve the problem of effective parts of bamboo shoots and their preparation methods and anti-oxidation and anti-tumor effects that have not yet been seen. And other issues
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Embodiment 1
[0020] Preparation method of effective part:
[0021] Take 120g rhizome of sweet potato seedlings with hairy leaves (Lycopus lucidus Turcz.var.hirtus Regel.), extract twice with n-hexane under reflux, first extract 600mL for 2 hours, and second 400mL extract for 1 hour, filter, combine the filtrates, and recover n-Hexane to obtain the n-Hexane fraction (RLE-H); the residue was reflux extracted twice with 70% and 50% ethanol respectively, the first 1200mL extracted for 2 hours, the second 960mL extracted for 1.5 hours, filtered, and the filtrates were combined to recover ethanol , to obtain extract (RLE); after the extract was dissolved in 150mL water, it was extracted with ethyl acetate (150mL / time*5 times) and n-butanol (150mL / time*5 times) successively, and the solvent was recovered respectively to obtain acetic acid Ethyl ester site (RLE-E), n-butanol site (RLE-B) and water site (RLE-W).
Embodiment 2
[0023] Scavenging superoxide anion activity test:
[0024] The superoxide anion generated by PMS / NADH (reduced coenzyme I) system was determined by luminol (Sigma company) enhanced chemiluminescence method. The total volume of the experimental reaction is 100 μL, and the reaction system includes: NADH (73 μmol / L), PMS (phenazine methyl sulfate) (15 μmol / L), luminol (100 μmol / L), borax / hydrochloric acid buffer (0.05M, pH 8.91) and samples with different concentrations. Add the sample to be tested and each reaction reagent to a BMG opaque 96-well plate (Hitachi Company), and the reaction is initiated by PMS. After the reaction solution is oscillated and mixed, the luminescence intensity value (countper second, CPS) is detected by a Topcount chemiluminescence analyzer (Hitachi Company) immediately. ), the measurement temperature is 19.1°C, and each hole is measured for 3 seconds. The scavenging rate of the sample to superoxide anion is calculated according to the following form...
Embodiment 3
[0028] Reduced Fe 3+ Proficiency Determination:
[0029] The determination of the reducing ability of the test sample was improved according to the method in the literature (Suzuki YJ, Tsuchiya M, Packer L.. FreeRadic Res Commun. 1991, 15(5): 255-263.). Prepare 2mM FeCl with deionized water 3 and phenanthroline (Beijing Chemical Reagent Company) solution, the two were mixed in a volume ratio of 1:1 before the experiment. The mixed solution was added to a 96-well cell culture plate, 90 μl / well, and then 10 μl / well of samples to be tested at different concentrations were added. Vitamin C (Vit C, Sigma Company) was added to the positive control group, and deionized water was used to replace the samples to be tested in the blank control group. . After oscillating and mixing, let stand at room temperature for 30 minutes, and measure the absorbance of each well with a Zenyth 200rt visible / ultraviolet full-wavelength spectrophotometer (Anthos Co. Austria) at a wavelength of 516 nm...
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