On the Essential Oil Components from Humulus lupulus L. var. neomexicanus Nels. & Cockerell. I. Contribution

Abstract

The essential oil of strobiles from Humulus lupulus L. var. neomexicanus Nels. & Cockerell, grown in the semi-arid climate of Central Colorado, was isolated by steam distillation. A characteristic seasonal dependence of oil production was observed over two vegetation periods. - The main components of the essential oil were identified structurally by means of GC and GC-MS analysis. About 40 different compounds, including monoterpenoic hydrocarbons and alcohols, ketones, methylesters of saturated and unsaturated carboxylic acids were detected. Other substances were esters of short chain acids with monoterpene alcohols, plus sesquiterpene hydro-carbons. © 1982, Walter de Gruyter. All rights reserved.