PJB-2002-40
PHENOLICS CONTENT IN ASTRAGALUS SPECIES
V. NIKNAM* AND H. EBRAHIMZADEH
Abstract
The content of total phenolics in roots, leaflets and seeds of a number of Astragalus species from Iran was examined. Phenolics content of the aqueous and methanolic extracts of the species were determined spectrophotometrically. Phenolics content depend on factors such as the species, geographical location of the plants and the organs. Moreover, the content of phenolics depends on the extraction solvents. Phenolics content in roots and leaflets of the species using aqueous extracts varied from 0.13-0.80 and 0.63-5.16% dry weight, respectively while using methanolic extracts ranged from 0.25-0.95 and 0.52-3.75% dry weight, respectively. Generally, the content of phenolics in leaflets was higher than that of the roots and seeds. In this paper the content of the phenolics in various species of Astragalus is reported for the first time.
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