论文部分内容阅读
[Objective] To optimize the extraction process of total flavonoids from Broussonetia papyrifera leaves by Microwave-assisted Extraction.[Method] Single factor test was adopted to study the effects of microwave time,microwave temperature,ethanol concentration,microwave power,solid-liquid ratio on the extraction rate of total flavonoids from B.papyrifera leaves.[Result] The optimal extraction process was selected,which was 1:12 (g/ml) solid-liquid ratio,55% ethanol concentration,15 min microwave time,450 W microwave power,60 ℃ microwave temperature,and ethanol as the solvent.Under these conditions,the extraction rate of total flavonoids from B.papyrifera leaves was 79.63 mg/g.[Conclusion] This method was simple,repeatable and stable,and could be used for the extraction of total flavonoids from B.papyrifera leaves.
[Objective] To optimize the extraction process of total flavonoids from Broussonetia papyrifera leaves by Microwave-assisted Extraction. [Method] Single factor test was adopted to study the effects of microwave time, microwave temperature, ethanol concentration, microwave power, solid-liquid ratio on the extraction rate of total flavonoids from B.papyrifera leaves. [Result] The optimal extraction process was selected, which was 1:12 (g / ml) solid-liquid ratio, 55% ethanol concentration, 15 min microwave time, 450 W Microwave power, 60 ° C microwave temperature, and ethanol as the solvent. Nutrient these conditions, the extraction rate of total flavonoids from B. papyrifera leaves was 79.63 mg / g. [Conclusion] This method was simple, repeatable and stable, and could be used for the extraction of total flavonoids from B.papyrifera leaves.