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Abstract
The hydrodistilled leaf essential oil of Premna barbata Wall. ex. Sch. collected during winter and spring season from Kumaon region has been characterized by GC and GC/MS. A total of about 45 constituents comprising 87–91% of oils have been identified. 1-Octen-3-ol (37.3–21.5%) and epi-α-bisabolol (12.2–14.1%) were the major constituents. The high 1-octen-3-ol content makes the oil biologically active.