Liquid chromatographic method for the determination of chlorophylls, carotenoids, and their derivatives in fresh and processed vegetables


Gokmen V. , Bahceci S., Acar J.

JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES, cilt.25, sa.8, ss.1201-1213, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Konu: 8
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1081/jlc-120004019
  • Dergi Adı: JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
  • Sayfa Sayıları: ss.1201-1213

Özet

A high-performance liquid chromatographic method has been developed to quantify major chlorophylls and carotenoids in some raw and processed vegetables. Vegetable samples were simultaneously homogenized and extracted with methanol in a homogenizer in two steps. A sample to solvent ratio of 1 : 10 (w/v) was sufficient for a complete extraction of pigments from pea. The extraction yields were determined to be 79.1% and 20.9% for the first and the second extraction steps, respectively. A MikroPak C8 reversed-phase column was used for the separation of chlorophylls and carotenoids in an elution time of 20 min using gradient mixture of methanol: water at a flow rate of 0.75 mL/min. A good separation of chlorophyll a (Chl a) and chlorophyll b (Chl b), and of their major derivatives, was achieved. The method has also been shown to be applicable for the separation of yellow (alpha- and beta-carotenes) and orange (xanthophylls) carotenoids in some vegetables. The method was shown to be useful to quantify Chl a and Chl b, and of their Mg-free derivatives of Pheo a and Pheo b, in some fresh and processed peas, as well as to quantify beta-carotene in carrots.