FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (12): 373-376.

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Study on the Extraction Technology Optimization and Antioxidative Activity of Flavonoids in Semen Plantaginis

WAN Yin,XIE Ming-yong,LIANG Li-jun,DAI He-ping   

  1. Key Laboratory of Food Science of Ministry of Education, Nanchang University, Nanchang 330047, China
  • Online:2006-12-15 Published:2011-11-23

Abstract: The solvent extraction technology of flavonoids in Semen Plantaginis was optimized by orthogonal experiments. The experimental results showed that the order of different factors affecting extraction rate was content of ethanol, extraction temperature, extraction time, rate of solid/liquid. The optimal experimental parameters were 60% ethanol content, 90℃ extrac-tion temperature, 1:30 rate of solid/liquid, 2h extraction time, three times. Inv itro antioxidative activity of the extract was evaluated by two systems, viz. DPPH radical scavenging activity and pyrogallol autooxidation methods. The results indicated that flavonoids in Semen Plantaginis have strong antioxidative activity in vitro.

Key words: Semen Plantaginis, flavonoids, extraction, antioxidative activity