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[Objective] To optimize the extraction technology of flavonoids from HERBA TARAXACI.[Method] By adopting orthogonal experiment and artificial neutral network,the content of total flavonoids was determined,the effects of extracting time,extracting temperature,solid-liquid ratio and ethanol concentration on the extraction process were studied,based on which the extraction technology was optimized.[Result] The effects of factors on the extraction decreased as solid-liquid ratio>ethanol concentration>extracting time>extracting temperature,and the optimum conditions simulated by artificial neural network were extracting temperature 75 ℃,ethanol concentration 65%,solid-liquid ratio 1∶30 g/ml and extracting time 3 h.[Conclusion] The artificial neural network based on orthogonal test could be used in optimizing the extracting technology of flavonoids from HERBA TARAXACI.
[Objective] To optimize the extraction technology of flavonoids from HERBA TARAXACI. [Method] By adopting orthogonal experiment and artificial neutral network, the content of total flavonoids was determined, the effects of extracting time, extracting temperature, solid-liquid ratio and ethanol concentration on the extraction process were studied, based on which the extraction technology was optimized. [Results] The effects of factors on the extraction decreased as solid-liquid ratio> ethanol concentration> extracting time> extracting temperature, and the optimum conditions simulated by artificial neural network were extracted at 75 ° C, ethanol concentration 65%, solid-liquid ratio 1:30 g / ml and extracting time 3 h. [Conclusion] The artificial neural network based on orthogonal test could be used in optimizing the extracting technology of flavonoids from HERBA TARAXACI.