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Open AccessFeature PaperReview

Immobilization of Cellulolytic Enzymes in Mesostructured Silica Materials

1
Istituto Motori CNR, Via Guglielmo Marconi 4, 80125 Napoli, Italy
2
Department of Chemical Engineering, Materials and Industrial Production, Piazzale Tecchio 80, 80125 Napoli, Italy
*
Authors to whom correspondence should be addressed.
Catalysts 2020, 10(6), 706; https://doi.org/10.3390/catal10060706
Received: 28 May 2020 / Revised: 14 June 2020 / Accepted: 18 June 2020 / Published: 23 June 2020
(This article belongs to the Special Issue Porous Materials and Catalysts)
Mesostructured silica nanoparticles offer a unique opportunity in the field of biocatalysis thanks to their outstanding properties. The tunable pore size in the range of mesopores allows for immobilizing bulky enzyme molecules. The large surface area improves the catalytic efficiency by increasing enzyme loading and finely dispersing the biocatalyst molecules. The easily tunable pore morphology allows for creating a proper environment to host an enzyme. The confining effect of mesopores can improve the enzyme stability and its resistance to extreme pH and temperatures. Benefits also arise from other peculiarities of nanoparticles such as Brownian motion and easy dispersion. Fossil fuel depletion and environmental pollution have led to the need for alternative sustainable and renewable energy sources such as biofuels. In this context, lignocellulosic biomass has been considered as a strategic fuel source. Cellulases are a class of hydrolytic enzymes that convert cellulose into fermentable sugars. This review is intended to survey the immobilization of cellulolytic enzymes (cellulases and β-glucosidase) onto mesoporous silica nanoparticles and their catalytic performance, with the aim to give a contribution to the urgent action required against climate change and its impacts, by biorefineries’ development. View Full-Text
Keywords: cellulase; β-glucosidase; cellulolytic enzymes; mesoporous silica; enzyme immobilization; cellulose hydrolysis; biofuels cellulase; β-glucosidase; cellulolytic enzymes; mesoporous silica; enzyme immobilization; cellulose hydrolysis; biofuels
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MDPI and ACS Style

Califano, V.; Costantini, A. Immobilization of Cellulolytic Enzymes in Mesostructured Silica Materials. Catalysts 2020, 10, 706.

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