Journal
JOURNAL OF ESSENTIAL OIL RESEARCH
Volume 21, Issue 3, Pages 267-270Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10412905.2009.9700166
Keywords
Thymus pallescens; Origanum floribundum; Lamiaceae; essential oil composition; carvacrol; p-cymene; gamma-terpinene
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The essential oils of Thymus pallescens de Noe and Origanum floribundum Munby leaves and flowers were analyzed by GC and GC/MS. The oil yields of T. pallescens were 2.8% for the leaves and 3.7% for the flowers, while those of O. floribundum were 2.0% for the leaves and 5.4% for the inflorescences. The major constituents of both the leaves and flowers of T pallescens were p-cymene, (17.4% and 9.2%), gamma-terpinene (10.6% and 14.1%) and carvacrol (39.0% and 48.3%), respectively, while those of O. floribundum were p-cymene (22.3% and 9.6%), gamma-terpinene (17.3% and 24.3%) and thymol (34.4% and 41.2%), respectively. For the both plants p-cymene and sesquiterpenes were essentially concentrated in leaves.
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