Browsing by Author "Girma, Tsegaye"

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    Phytochemical investigation on the stem bark of Senna floribunda
    (Addis Ababa Universty, 2006-07) Girma, Tsegaye; Alemayehu, Gizachew (PhD)
    The dichloromethane: methanol (1:1) extract of Senna floribunda afforded two bianthraquinones: floribundone-1(11) and 5, 7’- physcion – fallacinol (15) along with three common anthraquinones: chrysophanol (5), physcion (8) and emodin (3). Several un-characterized pigments were also isolated. The compounds are identified on the basis of their color reactions and spectroscopic data