Production, properties and application of cellulases in the hydrolysis of agroindustrial residues

Química Nova

PETRÓLEO BRASILEIRO S.A., Rio de Janeiro, Brasil¹  Pereira Jr, Nei¹  Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil¹  Castro, Aline Machado de¹ 

关键词: cellulases;    agroindustrial residues;    lignocellulose.;   

DOI  :  10.1590/S0100-40422010000100031

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Cellulases have been intensively studied in the past few years, due to the interests in biofuels production from lignocellulosic materials, since they permit maintaining mild conditions during the conversion process. These enzymes can be produced by a broad variety of naturally occurring microorganisms, such as from genera Aspergillus, Trichoderma, Penicillium and Humicola. Targeting the increasing of expression levels, molecular biology tools have been used for heterologous genes insertion in host cells, e. g., Pichia pastoris and Escherichia coli. Enzymes from fungal cellulolytic complex usually act best at pH between 4 and 5 under temperatures from 40 to 60 °C and can be used for either sequential (SHF) or simultaneous (SSF) hydrolysis together alcoholic fermentation. In this review, the main raw materials for production of cellulases are identified, as well as the state of art of enzymes' properties, production and main applications.

【 授权许可】

Unknown