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- Title
Nanoclays for Lipase Immobilization: Biocatalyst Characterization and Activity in Polyester Synthesis.
- Authors
Öztürk, Hale; Pollet, Eric; Phalip, Vincent; Güvenilir, Yüksel; Avérous, Luc
- Abstract
The immobilization of Candida antarctica lipase B (CALB) was performed by physical adsorption on both neat and organo-modified forms of sepiolite and montmorillonite. The influence of different parameters, e.g., solvent, enzyme loading, cross-linking, and type of clay support, on immobilization efficiency and catalyst hydrolytic activity has been investigated. The highest hydrolytic activities were obtained for CALB immobilized on organo-modified clay minerals, highlighting the beneficial effect of organo-modification. The esterification activity of these CALB/organoclay catalysts was also tested in the ring-opening polymerization of ε-caprolactone. The polymerization kinetics observed for clay-immobilized catalysts confirmed that CALB adsorbed on organo-modified montmorillonite (CALB/MMTMOD) was the highest-performing catalytic system.
- Subjects
ENCAPSULATION (Catalysis); CLAY minerals; POLYESTERS; LIPASES; MONTMORILLONITE catalysts; CATALYTIC hydrolysis; CROSSLINKING (Polymerization); ESTERIFICATION
- Publication
Polymers (20734360), 2016, Vol 8, Issue 12, p416
- ISSN
2073-4360
- Publication type
Article
- DOI
10.3390/polym8120416