Covalent immobilization of penicillin acylase from Streptomyces lavendulae |
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| Authors: | Jesús Torres-Bacete Miguel Arroyo Raquel Torres-Guzmán Isabel de la Mata María Pilar Castillón Carmen Acebal |
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| Affiliation: | (1) Departamento de Bioquímica y Biología Molecular I, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, Spain |
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| Abstract: | Penicillin acylase from Streptomyces lavendulae has been covalently immobilized to epoxy-activated acrylic beads (Eupergit C). Consecutive modification of the matrix with bovine serum albumin leads to a new biocatalyst (ECPVA) with enhanced activity (1.5 fold) in the hydrolysis of penicillin V respect to its soluble counterpart. This biocatalyst had a Km value of 7.6 mM, slightly higher than Km for native acylase (3 mM). In addition, ECPVA can be recycled for at least 50 consecutive batch reactions without loss of catalytic activity. |
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| Keywords: | enzyme immobilization Eupergit C penicillin V acylase Streptomyces lavendulae |
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