Ethanol was used as solvent to extract total flavonoids from fermentation solution of orange peel with the association of ultrasonic technology.

研究以乙醇为溶剂、超声波辅助提取柑橘皮渣发酵液中总黄酮的工艺。

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Now, in general, the produce of antibiotic is firstly extracted by clarification and solvent, and is separated from fermentation liquid and at last do the vacuum evaporation of the liquid extraction.

现代抗生素的生产一般首先是通过澄清和溶剂萃取从发酵液中加以分离，在对萃取液进行真空蒸发制得。

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