Method for ultrasonically extracting total flavones from tussilago farfara
A technology for extracting total flavonoids, which is applied in the field of ultrasonic extraction of total flavonoids in coltsfoot flowers, can solve problems such as less research, and achieve the effect of overcoming long time, accurate and reliable extraction conditions, and high extraction rate
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[0029] Example 1:
[0030] (1) Treatment of Coltsfoot
[0031] Put the coltsfoot flower in a constant temperature drying box at 90°C for 12 hours, then crush it with a medicinal material grinder, pass through a 20-mesh sieve, and set aside;
[0032] (2) Extraction
[0033] The coltsfoot treated in step (1) is mixed with the ethanol solution at a liquid-to-material ratio (mL / g) of 27:1, the volume fraction of ethanol in the ethanol solution is 70%, the ultrasonic power is 426W, and the ultrasonic extraction time is 30 Minutes to obtain the total flavonoid extract.
[0034] In the following, through single factor test method and response surface method, the total flavonoid extraction rate is used as an indicator to investigate the influence of liquid-to-material ratio, ethanol volume fraction, ultrasonic power and ultrasonic extraction time on the extraction rate of total flavonoids in coltsfoot, to select the optimized total Flavonoid extraction process conditions.
[0035] 1Materials a...
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