Essential Oil Composition of Bacopa imbricate (Benth.) Pennel Collected at Wet and Dry Amazonian Seasons

Abstract

The volatiles of Bacopa imbricata, collected at wet and dry Amazonian seasons were obtained by hydrodistillation and analyzed by GC/FID and GC/MS. Comparison with the essential oil obtained from the samples collected from the same locality shows noticeable differences in the total oil content (wet season: 0.2%; dry season: 0.1%), and in the percentage of the main component β-sesquiphellandrene (wet season: 65.3%, dry season: 43.3%).

Key Word Index:

• Bacopa imbricata
• Schrophulariaceae
• essential oil composition
• β-sesquiphellandrene