Screening for achetilcolinesterase inhibitors and antioxidant activity of microorganisms extracts from rhizosphera corn - Silva, Simone Cavalcante; Lima, Letícia Bazeia; Moraes, Luis Alberto Beraldo de; Melo, Flávia Mandolesi Pereira de; Melo, Itamar Soares de; Cardoso, Carmen Lúcia (Brazilian Conference on Natural Products-BCNP, 2007)