Chemical Composition and General Toxicity of Essential Oil Extracted from the Stalks and Flowers of Rheum Ribes L. Growing in Iran
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Abstract
The essential oil of Rheum ribes L. stalks and flowers, growing in Iran, were extracted with hydro-distillation and analyzed by GC-MS. Thirty constituents representing 93.84% of Rheum oil were identified. The oil was found to be rich in hydrocarbons especially long-chain n-alkanes (80.81%). The most abundant components in the oil included tricosane (26.29%), heneicosane (26.07%), pentacosane (10.63%), heptacosane (10.37%) and palmitic acid (3.64%). The essential oil was also evaluated for general toxicity bioassay using brine shrimp lethality method. The toxicity profile of the oil indicated some degree of toxicity in comparison with podophyllotoxin.
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© 2013, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.
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