The essential oil of Libocedrus bidwillii‐New Zealand Cedar

The application of a highly efficient fractionating column to the analysis of essential oils has been studied through the use of a spiral gauze column in the re-examination of the essential oil of Libocedrus bidwillii (New Zealand Cedar). The following fifteen constituents have been separated. l-x-pinene (24 ·8%); d-sabinene (3·3%); myrcene (2·7%); ketone (C10 H16 O) (3·7%); limonene and dipentene (7·4%); p-cymene (3·4%); terpinolene (0·7%) terpinen-4-01 (1·2%); unidentified tricyclic sesquiterpene (1·6%); unidentified sesquiterpene (3·7%); caryophyllene (3·0%); γ-curcumene (18·4%); d-cadinene (2·7%); green oil (5·8%); and tar (including hydrocarbon) (8·2%).

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