Medicinal Plant

2011, v.2(04) 61-63

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Study on the Extracting Process of Total Flavonoids from Elaeagnus angustifolia in Ningxia
Study on the Extracting Process of Total Flavonoids from Elaeagnus angustifolia in Ningxia

摘要(Abstract):

[Objective]To optimize the extraction process of total flavonoids from Elaeagnus angustifolia of Ningxia.[Method]Based on single factor test,effects of extraction temperature,ethanol concentration,extraction duration and solid-liquid ratio on the yield rate of total flavonoids from Elaeagnus angustifolia were investigated by orthogonal design.[Result] The optimum conditions were as follows:extraction temperature of 80 ℃,extraction duration of 1 h,60% ethanol as extractant,solid-liquid ratio of 1∶18.Under the optimal conditions,the yield rate of total flavonoids reached as high as 3.070 mg/g.[Conclusion] This study provides scientific basis for improving the medical efficacy and further development of Elaeagnus angustifolia.

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基金项目(Foundation): Supported by Key Laboratory Project of National Commission of Ethnic Affairs Chemical Technology(2009SY09)

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