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Immobilized β-galactosidase onto magnetic particles coated with polyaniline: Su...

Magnetite particles (<100 μm) obtained by coprecipitation of Fe2+ and Fe3+ and coated with polyaniline (MAG-PANI) were used to immobilize Aspergillus oryzae β-galactosidase via glutaraldehyde. The amount of β-galactosidase immobilized onto MAG-PANI was ca. 2.04 mg/g support. This magnetic enzymatic derivative was capable to act on lactose and to produce tri and tetragalactosides (transgalactosylation) and the c...