1. Characterization of carotenoids by using HPTLC - MS² and evaluation of total antioxidant contents in Cymbopogon giganteus extracts from Burkina Faso.
- Author
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Bationo, Remy K., Dabiré, Constantin M., Hema, Adama, Koala, Moumouni, Spina, Rosella, Nébié, Roger H. Ch., Palé, Eloi, and Laurain-Mattar, Dominique
- Subjects
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CAROTENOIDS , *ANTIOXIDANT analysis , *CYMBOPOGON , *BIOACTIVE compounds - Abstract
The natural carotenoids are more and more sought after for their coloring and bioactive properties. In this work, the carotenoid content was evaluated in the hexane extracts of different organs and six (06) carotenoids were characterized in the extracts of the leaves of Cymbopogon giganteus acclimatized in Burkina Faso. The contents of total carotenoids were estimated at 13.3 μg, 4.2 μg and 1.5 μg of β-carotene equivalent (EBC) / mg of dry extract, respectively in the hexanic extracts of leaves, stems and roots of C. giganteus. The major carotenoids that were identified by thin-layer chromatography-mass spectrometry (HPTLC-MS) for the first time in the extracts of this plant are lutein, 5,6-epoxylutein, violaxanthin, β-carotene, β-cryptoxanthine and Phytoène. Moreover, the total antioxidant contents evaluated by FRAP and DPPH methods vary between 28.6 and 34.1 μg TE/mg extract; 19.4 and 23.6 μg TE/mg extract; and 16.5 and 18.1 μg TE/mg dry extract respectively for leaves, stems and roots. Hexane extracts of the different parts of C. giganteus may be a potential source of natural antioxidants and carotenoids. [ABSTRACT FROM AUTHOR]
- Published
- 2022