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An original strategy for universal laboratory testing of Baeyer-Villiger monooxygenases based on continuous packed-bed minireactor connected with flow calorimeter and integrated with bubble-free oxygenation is reported. Model enantioselective Baeyer-Villiger biooxidations of rac-bicyclo[3.2.0]hept-2-en-6-one to corresponding lactones(More)
UNLABELLED This is the first reported study on the immobilization of living recombinant Escherichia coli cells that overexpress cyclopentanone monooxygenase in polyvinyl alcohol gel particles LentiKats®. Immobilized cells overexpressing cyclopentanone monooxygenase have been used as a model of biocatalyst for enantioselective Baeyer-Villiger biooxidation of(More)
Recombinant Escherichia coli cells, over-expressing cyclopentanone monooxygenase activity, were immobilized in polyelectrolyte complex capsules, made of sodium alginate, cellulose sulfate, poly(methylene-co-guanidine), CaCl(2) and NaCl. More than 90% of the cell viability was preserved during the encapsulation process. Moreover, the initial enzyme activity(More)
Surf1p is a protein involved in the assembly of mitochondrial respiratory chain complexes. However its exact role in this process remains to be elucidated. We studied SHY1, the yeast homologue of SURF1, with an aim to obtain a better understanding of the molecular pathogenesis of cytochrome c oxidase (COX) deficiency in SURF1 mutant cells from Leigh(More)
Bioencapsulation involves the envelopment of tissues or biological active substances in semipermeable membranes. Bioencapsulation has been shown to be efficacious in mimicking the cell's natural environment and thereby improves the efficiency of production of different metabolites and therapeutic agents. The field of application is broad. It is being(More)
Bacteria belonging to the genus Acetobacter and Gluconobacter, and enzymes isolated from them, have been extensively used for biosensor construction in the last decade. Bacteria used as a biocatalyst are easy to prepare and use in amperometric biosensors. They contain multiple enzyme activities otherwise not available commercially. The range of compounds(More)
Baeyer–Villiger biooxidation of 4-methylcyclohexanone–5-methyloxepane-2-one catalysed by recombinant Escherichia coli overexpressing cyclopentanone monooxygenase encapsulated in polyelectrolyte complex capsules was used to investigate effect of substrate conversion on the viability of cells. Confocal laser scanning microscopy (CLSM) was used to assess cell(More)
Direct comparison of key physical and chemical-engineering properties of two representative matrices for multipurpose immobilisations was performed for the first time. Polyvinyl alcohol lens-shaped particles LentiKats® and polyelectrolyte complex microcapsules were characterised by advanced techniques with respect to the size distribution of the particles,(More)
Baeyer-Villiger monooxygenases (BVMOs) are a very well-known and intensively studied class of flavin-dependent enzymes. Their substrate promiscuity, high chemo-, regio-, and enantioselectivity are prerequisites for the use in synthetic chemistry and should pave the way for successful industrial processes. Nonetheless, only a very limited number of(More)