Pterodon pubescens Benth. Stability study of microencapsulated extract and isolated compounds monitored by antinociceptive assays - Servat, L; Spindola, H M; Rodrigues, R AF; Sousa, I MO; Ruiz, A LTG; Carvalho, J E; Foglio, M A (J Braz Chem Soc, 2012)