FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (15): 103-106.

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Composition Analysis of Flavonoids from Semen Cuscutae and Antioxidant Activity in Edible Oil and Fat

CHEN Lin-lin   

  • Received:2011-06-30 Revised:2012-04-02 Online:2012-08-15 Published:2012-09-07
  • Contact: CHEN Lin-lin E-mail:linlinchen2009@yahoo.cn

Abstract: Flavonoids from Semen Cuscutae including rutin, quercetin and kaemperferol were determined qualitatively and quantitatively by ultraviolet spectroscopy and high performance liquid chromatography (HPLC). Using rutin as standard substance, flavonoid extract of Semen Cuscutae was determined and found to show two absorption peaks in the range of 300—380 nm and 240—280 nm. The contents of three flavonoid components were determined accurately by HPLC with repeatable results. Flavonoids from Semen Cuscutae displayed strong antioxidant activity in lard and peanut oil in a dose-dependent manner as evaluated based on peroxide value. In both matrices, the antioxidant effect at doses of 0.08% and 0.06% was superior to that of  0.02% BHT and 0.01% PG.

Key words: Semen Cuscutae, flavonoids, rutin, antioxidant activity

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