Content and chemical composition of the essential oils of Aristolochia cymbifera Mart. and Zucc. extracted from leaves submitted to different temperatures

摘要

The drying of plant materials ensures the preservation of the active constituents of medicinal plants. This experiment was conducted at the Federal Institute of Education, Science and Technology at the Goiás, Rio Verde Campus. The study sought to evaluate the effects of three drying air temperatures on the content and chemical composition of the essential oils of?Aristolochia cymbifera?(A. cymbifera). Drying was performed in a fixed bed dryer with average temperatures of 28.8, 36.4 and 44.8°C with four replicates used for each temperature. By increasing the drying air temperature, the drying time was decreased without altering the essential oil content or chemical composition.