Debrauwere J, Verzele M
J Chromatogr Sci. 1976 Jun;14(6):296-8. doi: 10.1093/chromsci/14.6.296.
Twenty-six hydrocarbons were identified in the essential oil of black pepper. Three of these are sesquiterpenes which have not been reported previously as occurring in this oil (beta-cubebene, alpha-guaiene and gamma-cadinene). Some other hydrocarbon constituents mentioned in the literature were absent in our pepper oil.
