FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (16): 225-228.

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Determination of Lutein and Zeaxanthin in Pangasius bocouti by Reversed-Phase High Performance Liquid Chromatography

  

  • Received:2011-07-14 Revised:2012-06-30 Online:2012-08-25 Published:2012-09-07
  • Contact: Yan ZHAO E-mail:zhao518yan@126.com

Abstract: A high performance liquid chromatography method was established for the determination of 1utein and zeaxanthin in Pangasius bocouti. The chromatographic separation was achieved on a C30 column using a mobile phase made up of acetonitrile, methanol and spasmolytol (75:25:0.05, V/V) by gradient elution. The detection wavelength was set at 450 nm, and an external standard method was used to quantify 1utein and zeaxanthin. An excellent linear relationship of this method for 1utein and zeaxanthin was observed (R2 >0.999). The average spike recovery rates of 1utein and zeaxanthin were 85.43%-96.60% and 83.18%-96.18% with relative standard deviations of 5.01%-7.15% and 4.60%-8.43%. The limit of detection was 0.008 mg/kg for 1utein and 0.003 mg/kg for zeaxanthin. This method was sensitive, repeatable, and suitable for the determination of 1utein and zeaxanthin aquatic products.

Key words: reversed-phase high performance liquid chromatography, lutein, zeaxanthin, Pangasius bocouti

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