Extraction protease expressed by Penicillium fellutanum from the Brazilian savanna using poly(ethylene glycol)/sodium polyacrylate/NaCl aqueous two-phase system - Barros, Kleber Vânio Gomes; Souza, Paula Monteiro de; Cardoso, Samuel L; Borges, Leonardo L; Ferreira Filho, Edivaldo Ximenes; Pessoa Junior, Adalberto; Magalhães, Pérola de Oliveira e (Biotechnology and Applied Biochemistry, 2015)