Volume 17 Issue 2
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BI Li-jun. Extracting flavonoid compounds from Toona sinensis leaves[J]. Journal of Zhejiang A&F University, 2000, 17(2): 146-149.
Citation: BI Li-jun. Extracting flavonoid compounds from Toona sinensis leaves[J]. Journal of Zhejiang A&F University, 2000, 17(2): 146-149.

Extracting flavonoid compounds from Toona sinensis leaves

  • Received Date: 1999-07-15
  • Rev Recd Date: 1999-12-23
  • Publish Date: 2000-06-20
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Extracting flavonoid compounds from Toona sinensis leaves

Abstract: Using a method applying alcohol soltion as extraction solvent in cooperation with ultrasonic wave in extraction techniques of flavonoid compounds in Toona sinensis leaves , discussing the primary factors which influences extraction ratio , and analyzing preferable extraction techniques by variance analysis and orthogonal design , the results show that a general extraction ratio reaches 96.47 % after soaking 1.00 g sample in 50 mL 50 % alcoholsolution for 24 h with application of ultrasonic wave for 45 min and repeating again .The extracting ratio of flavonoids is 7.45 %in the leaves and 5.40 % in the leafstalk .The volume percentage of alcohol is a predominant factor for extraction ratio .Application time of ultrasonic wave have certain influence while solvent quantity shows little influence on extraction ratio .

BI Li-jun. Extracting flavonoid compounds from Toona sinensis leaves[J]. Journal of Zhejiang A&F University, 2000, 17(2): 146-149.
Citation: BI Li-jun. Extracting flavonoid compounds from Toona sinensis leaves[J]. Journal of Zhejiang A&F University, 2000, 17(2): 146-149.

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