Immobilization of marine fungi on silica gel, silica xerogel and chitosan for biocatalytic reduction of ketones - Rocha, Lenilson Coutinho da; Souza, Adriano Lopes de; Rodrigues Filho, Ubirajara Pereira; Campana Filho, Sergio Paulo; Sette, Lara Durães; Porto, Andre Luiz Meleiro (Journal of Molecular Catalysis B: Enzymatic, 2012)