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Extraction of flavones from Scutellaria baicalensis Georgi with ethanol under room temperature

Yufei Zhang

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Abstract

The extraction of total flavones from Scutellaria baicalensis Georgi by three different methods is studied. The optimal extracting conditions are as follows: the powder of Scutellaria baicalensis Georgi is steeped 3 times with 10 folds 50% of the ethanol for 24h, precipitation of flavones is at pH 0.5 and 40℃. Compared with original process, the method is stable, the average yield of flavones is 7.68%.

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What this paper is about

The extraction of total flavones from Scutellaria baicalensis Georgi by three different methods is studied. The optimal extracting conditions are as follows: the powder of Scutellaria baicalensis Georgi is steeped 3 times with 10 folds 50% of the ethanol for 24h, precipitation of flavones is at pH 0.5 and 40℃. Compared with original process, the method is stable, the average yield of flavones is 7.68%.

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Available abstract

The extraction of total flavones from Scutellaria baicalensis Georgi by three different methods is studied. The optimal extracting conditions are as follows: the powder of Scutellaria baicalensis Georgi is steeped 3 times with 10 folds 50% of the ethanol for 24h, precipitation of flavones is at pH 0.5 and 40℃. Compared with original process, the method is stable, the average yield of flavones is 7.68%.

Key concepts: Scutellaria baicalensis, Flavones, Extraction (chemistry), Ethanol, Chemistry, Scutellaria, Chromatography, Traditional medicine

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