The seasonal variation of the chemical composition of essential oils from Porcelia macrocarpa R.E. Fries (Annonaceae) and their antimicrobial activity.

This study investigates the impact of seasonal variation on the chemical composition of essential oils from the leaves of Porcelia macrocarpa (Annonaceae) obtained over the course of one year (January-December 2011) and the chemical composition of the essential oils obtained from the ripe fruits of the same plant. Furthermore, the essential oils of the leaves were investigated with respect to their antimicrobial activity. The essential oils of the leaves contain a mixture of monoterpenes, one diterpene and several sesquiterpenes.

Chemical constituents and cytotoxic evaluation of essential oils from leaves of Porcelia macrocarpa (Annonaceae).

This work reports the chemical composition and cytotoxic evaluation of the essential oils from three different samples of the leaves of Porcelia macrocarpa R. E. Fries (Annonaceae).