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Lecitase Ultra (a quimeric fosfolipase commercialized by Novozymes) has been immobilized via two different strategies: mild covalent attachment on cyanogen bromide agarose beads and interfacial activation on octyl-agarose beads. Both immobilized preparations have been submitted to different individual or cascade chemical modifications (amination, glutaraldehyde or 2,4,6-trinitrobenzensulfonic acid...
Lipase B from Candida antarctica (CALB) has been adsorbed on octyl-agarose or covalently immobilized on cyanogen bromide agarose. Then, both biocatalysts have been modified with ethylenediamine (EDA) or 2,4,6-trinitrobenzensulfonic acid (TNBS) just using one reactive or using several modifications in a sequential way (the most complex preparation was CALB–TNBS–EDA–TNBS). Covalently immobilized enzyme...
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