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Planta Med 1977; 31(4): 311-314
DOI: 10.1055/s-0028-1097538
© Georg Thieme Verlag Stuttgart · New York

ZUR FRAGE DES THYMOL–VORKOMMENS IN ARNIKA ARTEN

Studies on the presence of thymol in some Arnica speciesR. Schmitz, H. Kating
  • Institut für Pharmazeutische Biologie der Friedrich–Wilhelms–Universität Bonn
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Publication Date:
13 January 2009 (online)

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Abstract

The content of thymol increased in the rhizomes and roots of Arnica parryi and A. sacchalinensis from 0,9 % to 7,8 % and 0,6°Io to 6,8 % of the essential oil depending on the duration of storage. In correlation with this a decrease of the content of isobutyl-thymyl ester is observed. Genuinely thymol seems not to be present or only in very small quantities in these Arnica-species. It was found that A. molli s is an exception to the other Arnica-species having been examined up to now, because it contains neither thymol nor isobutyl-thymyl ester, a main ingredient of the essential oil of Arnica-species.