The compound responsible for the pungency of Australian‐grown ginger has been extracted using supercritical CO 2 . Methods for analysis of gingerols and shogaols by electrospray—MS have been developed and direct analysis of crude extracts without previous chromatographic separation is shown to be possible by negative ion electrospray—MS. The extracts produced by this procedure are shown to contain about 70 g kg −1 6‐gingerol and less than 2 g kg −1 6‐shogaol. The low concentration of shogaols, which are degradation products of gingerols, attests to the mild nature of both the extraction and the analytical procedures.
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John P. Bartley (1995) studied this question.
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