Oil of wild ginger was found to contain the following as yet unreported constituents: β-pinene, Δ 3 -carene, β-caryophyllene, ar-curcumene, linalool, borneol, and α-terpineol. The presence of three ketones, one of them readily generated during gas chromatographic analysis from a non-ketonic sesquiterpenoid, was also demonstrated. Formation of a sesquiterpene alcohol as a compositional artefact of the oil occurred during column chromatography over alumina.
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Nigam et al. (1963) studied this question.