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Spectroscopy
Volume 14, Issue 2, Pages 51-59
http://dx.doi.org/10.1155/1999/473812

Compositional analysis of the leaf oils of Piper callosum Ruiz & Pav. from Peru and Michelia montana Blume from India

H. P. van Genderen Marcel,1 Piet A. Leclercq,2 Hermann Silva Delgado,3 Purnendu B. Kanjilal,4 and Ramesh S. Singh4

1Laboratory of Macromolecular and Organic Chemistry, Department of Chemical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
2Laboratory of Instrumental Analysis, Department of Chemical Engineering, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
3Traditional Medicinal Institute, Peruvian Social Security Institute, Pasaje San Lorenzo No. 205, Guayabamba, Iquitos, Peru
4Division of Plant Sciences and Ecology, Regional Research Laboratory, Jorhat 785 006, Assam, India

Received 1 August 1998; Accepted 1 October 1998

Copyright © 1999 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The leaf oils of Piper callosum from Peruvian Amazon and Michelia montana from Assam, India, were prepared by hydrodistillation and analyzed by a combination of GC and GC/MS. Twenty five and thirty components have been identified, representing 96.3 and 100.0% of the respective oils. The major constituents were found to be asaricin (syn. sarisan) (35.9 and 81.8%, respectively) and safrole (20.2 and 13.0%). The oil of P. callosum contained in addition eugenyl methyl ether (9.7%) and (E)‒asarone (7.8%), compounds not detected in the M. montana oil. The identity of the principal compound, an isomer of myristicin, was unequivocally established by 13C‒NMR spectrometric techniques, especially long‒range 1H–13C correlation.