A kind of total flavonoid extract with antidepressant effect and its preparation method and application
A technology of total flavonoids and extracts, applied in the field of medicine, can solve problems such as side effects, and achieve the effects of simple steps, saving raw materials, and significant antidepressant activity
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Embodiment 1
[0032] Embodiment 1 A kind of preparation method of the total flavone extract with antidepressant effect, specifically comprises the following steps:
[0033] (1) According to the solid-to-liquid ratio of 1:8, add ethanol with a volume concentration of 95% to the dodder medicinal material, heat and reflux extraction for 3 times, each time for 2 hours, filter and combine the extracts, and concentrate under reduced pressure at 65°C until there is no alcohol smell;
[0034] (2) Get the concentrate in step (1) and carry out separation and purification on a polyamide chromatographic column, elute with ethanol solution with volume concentration of 30% and 70% respectively, and collect ethanol elution with volume concentration of 30% and 70% liquid, mixed and concentrated to obtain a concentrated solution.
[0035] (3) Add water to the concentrated solution obtained in step (2), stir and dilute it, then let it stand for 6-8h, and centrifuge (3000-5000rpm, 30min) to collect the precip...
Embodiment 2
[0037] Embodiment 2 A kind of preparation method of the total flavone extract with antidepressant effect, specifically comprises the following steps:
[0038] (1) According to the solid-to-liquid ratio of 1:8, add ethanol with a volume concentration of 95% to the dodder medicinal material, heat and reflux extraction for 3 times, each time for 2 hours, filter and combine the extracts, and concentrate under reduced pressure at 65°C until there is no alcohol smell;
[0039] (2) Get the concentrate in step (1) and carry out separation and purification on a polyamide chromatographic column, elute with ethanol solution with volume concentration of 40% and 80% respectively, and collect ethanol elution with volume concentration of 40% and 80% liquid, mixed and concentrated to obtain a concentrated solution.
[0040] (3) Add water to the concentrated solution obtained in step (2), stir and dilute it, then let it stand for 6-8h, and centrifuge (3000-5000rpm, 30min) to collect the precipit...
Embodiment 3
[0042] Embodiment 3 antidepressant experiment
[0043] 1. The modeling method of chronic stress-stimulated depressed mice in this example is:
[0044] Before the depression modeling, the experimental mice were given 2% sugar water for 3 days to adapt. After 3 days, the mice in the normal group were reared separately from the mice in the other groups. Food and water should be fasted during the sugar water preference experiment, and they were free to eat at other times. The model animals were subjected to chronic mild stimulation for 3 weeks, including swimming in cold water (15°C, 6min); tail clamping (1min); water deprivation (24h); fasting (24h); °); wet rearing (100ml water was added to the bottom of the cage with sawdust); overnight lighting stimulation. That is, the mice received one stimulus every day, each stimulus was guaranteed to be carried out randomly but not continuously, and the number of overnight lighting stimulations was at least twice a week.
[0045] 2. St...
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