Immobilisation on mesoporous silica and solvent rinsing improve the transesterification abilities of feruloyl esterases from Myceliophthora thermophila
Artikel i vetenskaplig tidskrift, 2017

The immobilisation of four feruloyl esterases (FAEs) (FaeA1, FaeA2, FaeB1, FaeB2) from the thermophilic fungus Myceliophthora thermophila C1 was studied and optimised via physical adsorption onto various mesoporous silica particles with pore diameters varying from 6.6 nm to 10.9 nm. Using crude enzyme preparations, enrichment of immobilised FAEs was observed, depending on pore diameter and protein size. The immobilised enzymes were successfully used for the synthesis of butyl ferulate through transesterification of methyl ferulate with 1-butanol. Although the highest butyl ferulate yields were obtained with free enzyme, the synthesis-to-hydrolysis ratio was higher when using immobilised enzymes. Over 90% of the initial activity was observed in a reusability experiment after nine reaction cycles, each lasting 24 h. Rinsing with solvent to remove water from the immobilised enzymes further improved their activity. This study demonstrates the suitability of immobilised crude enzyme preparations in the development of biocatalysts for esterification reactions.

Butyl ferulate

Biocatalysis

SBA-15

Enzyme immobilisation

Esterification

Författare

Silvia Hüttner

Chalmers, Biologi och bioteknik, Industriell bioteknik

Milene Zezzi Do Valle Gomes

Chalmers, Biologi och bioteknik, Industriell bioteknik

Laura Iancu

DuPont

Anders Palmqvist

Chalmers, Kemi och kemiteknik, Tillämpad kemi, Teknisk ytkemi

Lisbeth Olsson

Chalmers, Biologi och bioteknik, Industriell bioteknik

Bioresource Technology

0960-8524 (ISSN)

Vol. 239 57-65

Ämneskategorier

Industriell bioteknik

Analytisk kemi

DOI

10.1016/j.biortech.2017.04.106

PubMed

28501686

Mer information

Skapat

2017-10-07