Abstract:Trichoderma viride CMGB 1 cellulases were immobilized by entrapment in silica gels (by sol-gel method), alginate biopolymers and hybrid alginate/silica materials. Tetramethoxysilane (TMOS), tetraethoxysilane (TEOS) and tetrakis (2-hydroxyethyl) orthosilicate (THEOS) were used as organoalkoxysilane precursors and ethanol or ethylene glycol as cosolvents in a two step sol-gel synthesis. Combined alginate/silica matrices resulted by mixing silica sol with sodium alginate or by coating alginate beads with a silica… Show more
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