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Essential Oil of Hop Cones (Humulus lupulus L.) Ab8tTaCtThe essential o i l from hop ames (Humulus lupulus L . ) , which was obtained by steam distillation, was analyzed by GC and G W . The major constituents obtained were: myrcene (25.4%), Bcaryophyllene @.8%), a-humulene (36.796), a-mudene (3.0%), ycadinene (5.5%) and k d i n e n e (4.1%). Fifteen minor components w e r e also identified. The yield of o i l relative to dried hop cones was 0.3%.

Volatile Constituents of Leaf Oils from the GenusBaccharis. Part I: B. racemosa (Ruiz et Pav.) DC and B. linearis (Ruiz et Pav.) Pers. Abstract Volatile compounds from Baccharis racemosa (Ruiz et Pav.) DC and two samples of B. linearis (Ruiz et Pav.)Pers. leaves collected in the Argentinean Patagonia were isolated by steam distillation. Yields on the oils were 2.50% for B. racemosa; 0.92% for B. linearis (sample A) and 1.91% for B. linearis (sample B). The leaf oils were analyzed by GC and GC/MS. The main constituents of each oil were: (i) B. racemosa oil: sabinene (13.6%), β-pinene (2.8%), myrcene (2.0%), limonene (13.3%), δ-cadinene (5.3%), (E)-nerolidol (5.0%), viridifl orol (2.6%), α-muurolol (9.7%) and α-cadinol (3.1%); (ii) B. linearis (sample A) oil: α-pinene (6.5%), β-pinene (14.9%), myrcene (2.2%), limonene (27.6%), bicyclogermacrene (2.7%), δ-cadinene (3.9%), caryophyllene oxide (3.1%), cubenol (4.7%) and α-cadinol (4.7%); and (iii) B. linearis (sample B) oil: α-pinene (2.5%), β-pinene (6.5%), limonene (27.7%), β-caryophyllene (2.0%), germacrene D (4.7%), bicyclogermacrene (5.4%), δ-cadinene (6.7%), cubenol (6.0%) and α-cadinol (3.0%).

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