ORIGINAL ARTICLE
Year : 2018  |  Volume : 17  |  Issue : 3  |  Page : 150-154

A chemosystematic study of Asphodelus aestivus Brot. (Asphodelaceae) in Egypt


1 Department of Phytochemistry and Plant Systematics, National Research Centre, Giza, Egypt
2 Department of Botany, Cairo University, Cairo, Egypt

Correspondence Address:
Dr. Mona M Marzouk
Department of Phytochemistry and Plant Systematics, National Research Centre, P.O.12622, 33 El Bohouth Street, Dokki, Giza
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/epj.epj_7_18

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Background and objectives In the Egyptian flora, the genus Asphodelus was formally placed in Liliaceae family and recently is ranked as a separate family; Asphodelaceae. Asphodelus aestivus Brot. is the one of the five Asphodelus spp. distributed wild in Egypt; it grows on rocky or sandy ground and in dry grasslands. Therefore, this study aims to investigate the chemical constituents of A. aestivus compared with those reported in the species of families Liliaceae s.l. and Asphodelaceae to evaluate their chemosystematic relationship. Materials and methods The chemical components of the defatted hydroalcoholic extract of A. aestivus were analyzed using different chromatographic and spectral techniques. Results and conclusion A total of 13 flavonoid compounds were isolated from A. aestivus. They are identified as kaempferol (1), kaempferol 7-O-β-glucopyranoside (2), kaempferol 3-O-(6′-α-rhamnopyranosyl)-β-glucopyranoside-7-O-α-rhamnopyranoside (3), apigenin (4), apigenin 7-O-β-glucopyranoside (5), luteolin (6), luteolin 7-O-β-glucopyranoside (7), vitexin (8), isovitexin (9), apigenin 6, 8 di-C-β-glucopyranoside (10), saponarin (11), orientin (12), and isoorientin (13). Except for compounds 9 and 13, all compounds were isolated for the first time from A. aestivus. A. aestivus is characterized by flavones, flavonols, and flavone C-glycosides. It is thus different from other species of Liliaceae s.l. which are characterized by either flavones and flavone C-glycosides or flavonols and flavone C-glycosides, supporting the placement of the genus Asphodelus in a distinct family (Asphodelaceae).


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