Study on Extraction Technology and Antioxidant Property of Total Flavonoids From Lilium brownii var.viridulum Leaves(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on Extraction Technology and Antioxidant Property of Total Flavonoids From Lilium brownii var.viridulum Leaves

Author(s):: XUE Mei1; LI Xiaoying1; ZHOU Weiping2; （1.College of Forestry and Life Science,Chongqing University of Arts and Sciences,Chongqing 402160；2.College of Physical Education，Chongqing University of Arts and Sciences,Chongqing 402160）

Keywords:: Lilium brownii var.viridulum leaves; total flavonoid; ultrasonic method; antioxidant activity

Abstract:: Extraction technology by ultrasonic method and antioxidant activity of total flavonoids from Lilium brownii var.viridulum leaves were studied.Basing on the single factor experiment，orthogonal experiment was used to study the effect of ethanol concentration，material-liquid ratio，extraction time and extraction temperature on the quantity of flavonoids extracting from Lilium brownii var.viridulum leaves.Antioxidant activity of flavonoids extraction in vitro was researched preliminarily.The results showed that the optimum extracting conditions of total flavonoids from Lilium brownii var.viridulum leaves were extraction temperature 50 ℃，ethanol concentration 80%，solid-liquid ratio 1∶5 g?mL-1，extraction time 30 minutes，the total flavonoids content was 12.691 mg?g-1.The results of antioxidant test showed that the DPPH? eliminating ability of total flavonoids extraction from Lilium brownii var.viridulum leaves was better than the same concentration of vitamin C，and showed a very significant difference.

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Last Update: 2016-07-14