Cellulases from Thermophiles Found by Metagenomics

Overview

Journal Microorganisms

Specialty Microbiology

Date 2018 Jul 13

PMID 29996513

Citations 20

Authors

Juan-Jose Escuder-Rodriguez

Maria-Eugenia DeCastro

Maria-Esperanza Cerdan

Esther Rodriguez-Belmonte

Manuel Becerra

Maria-Isabel Gonzalez-Siso

Affiliations

Soon will be listed here.

Abstract

Cellulases are a heterogeneous group of enzymes that synergistically catalyze the hydrolysis of cellulose, the major component of plant biomass. Such reaction has biotechnological applications in a broad spectrum of industries, where they can provide a more sustainable model of production. As a prerequisite for their implementation, these enzymes need to be able to operate in the conditions the industrial process requires. Thus, cellulases retrieved from extremophiles, and more specifically those of thermophiles, are likely to be more appropriate for industrial needs in which high temperatures are involved. Metagenomics, the study of genes and gene products from the whole community genomic DNA present in an environmental sample, is a powerful tool for bioprospecting in search of novel enzymes. In this review, we describe the cellulolytic systems, we summarize their biotechnological applications, and we discuss the strategies adopted in the field of metagenomics for the discovery of new cellulases, focusing on those of thermophilic microorganisms.

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