Microwave Extraction of Flavonoids from Taihe Toon

In order to compare the advantages and disadvantages of microwave extraction and ethanol extraction of flavonoids,optimization of microwave extraction of flavonoids.Different concentrations of ethanol were used to extract Taihe toon flavonoids.The impact of various factors of microwave extraction was investigated,the effect of different extraction temperature,microwave frequency,the extraction solvent(coconut oil fatty acid diethanol Thalidomide,Ninaer),the sample matrix and other ingredients of flavonoids in Taihe toon were studied,and the most good extraction program was determined.The results showed that the optimal conditions for the extraction of ethanol was ethanol volume fraction of 80%,precipitation 10h;microwave extraction 0.8%mass fraction Nina Er solution to extract,in the microwave power of 360 W,microwave extraction for 8min,then an extract the maximum concentration of flavonoids was obtained.The microwave extraction of flavonoids had a high extraction rate,high product purity,low energy consumption,low operating cost advantages compared with organic solvent extraction.