Essential oil chemotypes in Hyptis suaveolens from Brazilian Cerrado
2002
Azevedo, N.R. | Campos, I.F.P. | Ferreira, H.D. | Portes, T.A. | Seraphin, J.C. | Paula, J.R. de | Santos, S.C. | Ferri, P.H.
The composition of nine samples of essential oil of individual plants in fruiting stage of Hyptis suaveolens from Brazilian Cerrado was investigated by GC-MS. Spathulenol, 1,8-cineole and (E)-caryophyllene were the principal constituents. The results were submitted to Principal Component and Chemometric Cluster Analysis which allowed three groups of essential oils to be distinguished with respect to the content of 1,8-cineole/sabinene, beta-bourbonene and alpha-bulnesene. Latitude seems to be the most important environmental factor influencing the oil contents. Pattern of geographic-variation in essential oil composition indicated that sesquiterpenes are mainly produced in the samples grown at lower latitudes and altitudes.
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