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Zeolite‐Coated Porous Arrays: A Novel Strategy for Enzyme Encapsulation
Author(s) -
Marthala V. R. Reddy,
Friedrich Mona,
Zhou Zhou,
Distaso Monica,
Reuss Stephanie,
AlThabaiti Shaeel A.,
Peukert Wolfgang,
Schwieger Wilhelm,
Hartmann Martin
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201404335
Subject(s) - zeolite , materials science , lipase , porosity , chemical engineering , composite material , leaching (pedology) , catalysis , organic chemistry , enzyme , chemistry , environmental science , soil science , engineering , soil water
Zeolite Beta‐coated stainless steel supports with gradient porosity are employed as filter‐panels for lipase encapsulation. Enzyme encapsulation on the stainless steel porous discs is achieved via vacuum infiltration. Subsequently, two lipase‐encapsulated zeolite Beta‐coated stainless steel discs are attached using an adhesive. The zeolite Beta layer on the stainless steel discs largely prevents lipase leaching in comparison to the stainless steel discs without a zeolite layer. The activity of the lipase‐encapsulated, attached zeolite Beta‐coated stainless steel porous discs depends on the thickness of the zeolite Beta layer. It is shown that the biocatalytic performance of the lipase‐encapsulated, attached zeolite Beta‐coated stainless steel supports with a zeolite Beta layer thickness of ≈0.7–1 μm is better than the lipase‐encapsulated, attached zeolite Beta‐coated stainless steel supports with a zeolite Beta layer thickness of ≈2–3 μm in the lipase‐catalyzed transesterification of vinyl propionate with 1‐butanol using n ‐hexane as solvent.