| Publication Type: | Journal Article |
| Year of Publication: | 1996 |
| Authors: | G. L. vonPoser, Menut, C., Toffoli, M. E., Verin, P., Sobral, M., Bessiere, J. M., Lamaty, G., Henriques, A. T. |
| Journal: | J Agr Food Chem |
| Volume: | 44 |
| Pagination: | 1829–1832 |
| Date Published: | Jan |
| Keywords: | Essential Oil Composition, Hesperozygis Rhododon Epling, Hesperozygis Ringens (Benth) Epling, Lamiaceae, Menthone, Pulegone |
| Abstract: | Samples of Hesperozygis ringens (Benth.) Epling and Hesperozygis rhododon Epling essential oils were analyzed by a combination of analytical techniques: capillary gas chromatography, liquid/solid chromatography, GC/MS coupling, and NMR spectroscopy. Twenty-four components have been identified representing altogether more than 95% of the oil content. The oil of H. ringens is constituted mainly by pulegone (79.2%) accompanied by several oxygenated derivatives (pulegone oxides, 1.2%; 8-hydroxy-p-menth-3-one, 1.3%; and 8-hydroxy-p-menth-4-en-3-one, 3.7%); that of H. rhododon contains menthone and pulegone as main compounds in almost comparable amounts (43.4% and 29.6%, respectively). Tests carried out on lettuce seeds using alcoholic extracts of the two species showed significant antigerminating properties mainly for H. ringens. The same activity was observed with its essential oil. |
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