Journal article
(Original article)


Immobilization of lipase in cage-type mesoporous organosilicas via covalent bonding and crosslinking


Publication Details
Author(s): Zhou Z, Piepenbreier F, Marthala V, Hartmann M, Karbacher K
Publisher: Elsevier
Publication year: 2015
Volume: 243
Pages range: 173-183
ISSN: 0920-5861

Abstract

Lipase from Thermomyces lanuginosus (TLL) was immobilized in cage-type mesoporous materials via two different protocols, viz, covalent bonding and cross-linking. The comparison between the biocatalysts generated by the two methods on both pure silica mesocellular siliceous foam (MCF) and cage-type large pore mesoporous organosilicas (PMOs) disclosed that cross-linking results in the immobilization of a larger amount of TLL and reduced diffusion problems compared to covalent bonding. Benzene-bridged PMOs positively influence the activity of immobilized lipase due to the hydrophobic properties of the surface. Furthermore, a transesterification reaction in organic solvent was carried out to verify the biocatalytic performance of differently immobilized lipase in both batch and fixed-bed reactors. The results further confirm the superiority of the PMO support compared to MCF and also reveal that the different immobilization protocols strongly influence the activity, stability and specificity of immobilized TLL. Moreover, two commercial available immobilize formed TLL were also used in a fixed-bed reactor under the same condition for comparison. (C) 2014 Elsevier B.V. All rights reserved.



How to cite
APA: Zhou, Z., Piepenbreier, F., Marthala, V., Hartmann, M., & Karbacher, K. (2015). Immobilization of lipase in cage-type mesoporous organosilicas via covalent bonding and crosslinking. Catalysis Today, 243, 173-183. https://dx.doi.org/10.1016/j.cattod.2014.07.047

MLA: Zhou, Zhou, et al. "Immobilization of lipase in cage-type mesoporous organosilicas via covalent bonding and crosslinking." Catalysis Today 243 (2015): 173-183.

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