Supercritical fluid extraction of muirapuama roots (Ptychopetalum olacoides Bentham, Olacaceae) - Maul, Aldo Adolar; Freitas, B. R.; Ribeiro, P. F. S.; Polakiewicz, Bronislaw; Magalhães, João Fernandes (Symposium on Biotechnology for Fuels and Chemicals, 2002)