Liquid-liquid extraction of biomolecules: an overview and update of the main techniques - Mazzola, Priscila Gava; Lopes, André Moreni; Hasmann, Francislene Andréia; Jozala, Angela Faustino; Vessoni Penna, Thereza Christina; Magalhães, Pérola de Oliveira e; Rangel-Yagui, Carlota de Oliveira; Pessoa Junior, Adalberto (Journal of Chemical Technology and Biotechnology, 2008)