Produção, propriedades e aplicação de celulases na hidrólise de resíduos agroindustriais

Química Nova

Aline Machado De Castro²  Nei Pereira Jr¹ 

[1] ,PETRÓLEO BRASILEIRO S.A. Centro de Pesquisas e Desenvolvimento Leopoldo Américo Miguez de Mello Rio de Janeiro RJ ,Brasil

关键词: cellulases;    agroindustrial residues;    lignocellulose;   

DOI  :  10.1590/S0100-40422010000100031

来源: SciELO

【 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】

CC BY-NC   
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