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Title (Primary) Catalytic Pseudomonas taiwanensis VLB120ΔC biofilms thrive in a continuous pure styrene generated by multiphasic segmented flow in a capillary microreactor
Author Halan, B.; Karande, R.; Buehler, K.; Schmid, A.;
Journal Journal of Flow Chemistry
Year 2016
Department SOMA;
Volume 6
Issue 1
Language englisch;
POF III (all) R61;
Keywords capillary microreactor; aqueous—air—organic segmented flow; catalytic biofilms; multiphasic flow
UFZ wide themes RU4;
Abstract This study investigated the survival and catalytic potential of a single species Pseudomonas taiwanensis VLB120ΔC biofilm for the conversion of styrene to (S)-styrene oxide in a multiphasic capillary microreactor containing the highly toxic substrate styrene as a pure phase. The catalytic biofilm was cultivated under high fluidic stress in a continuous three-phase segmented flow system comprising aqueous medium, air, and styrene. This concept required an adaptation period of 7 days, during which P. taiwanensis VLB120?C developed a biofilm exhibiting a remarkable cellular integrity with nearly 70% intact cells. In a three-phase segmented flow biofilm microreactor, an average specific styrene epoxidation rate of 10 g/Ltube/day was achieved continuously for a period of 20 days without any clogging problems. Overall, this note highlights the robustness of biofilms as a promising biocatalyst format for the conversion/synthesis of toxic organic chemicals and the applicability of multiphasic capillary microreactors for biofilm based catalysis.
ID 18077
Persistent UFZ Identifier http://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18077
Halan, B., Karande, R., Buehler, K., Schmid, A. (2016):
Catalytic Pseudomonas taiwanensis VLB120ΔC biofilms thrive in a continuous pure styrene generated by multiphasic segmented flow in a capillary microreactor
J. Flow Chem. 6 (1), 39 - 42