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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Immobilized Nanoparticles-Mediated Enzymatic Hydrolysis of Cellulose for Clean Sugar Production: A Novel Approach

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Autor(es):
Gailcwad, Swapnil [1, 2] ; Ingle, Avinash P. [1] ; da Silva, Silvio Silverio [1] ; Rai, Mahendra [3]
Número total de Autores: 4
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Engn Sch Lorena, Dept Biotechnol, Estr Municipal Campinho SN, BR-12602810 Lorena, SP - Brazil
[2] Dr DY Patil Vidyapeeth, Microbial Divers Res Ctr, Dr DY Patil Biotechnol & Bioinformat Inst, Pune 411033, Maharashtra - India
[3] SGB Amravati Univ, Dept Biotechnol, Nanobiotechnol Lab, Amravati 444602, Maharashtra - India
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: CURRENT NANOSCIENCE; v. 15, n. 3, p. 296-303, 2019.
Citações Web of Science: 2
Resumo

Background: Enzymatic hydrolysis of cellulose is an expensive approach due to the high cost of an enzyme involved in the process. The goal of the current study was to apply magnetic nanomaterials as a support for immobilization of enzyme, which helps in the repeated use of immobilized enzyme for hydrolysis to make the process cost-effective. In addition, it will also provide stability to enzyme and increase its catalytic activity. Objective: The main aim of the present study is to immobilize cellulase enzyme on Magnetic Nanoparticles (MNPs) in order to enable the enzyme to be re-used for clean sugar production from cellulose. Methods: MNPs were synthesized using chemical precipitation methods and characterized by different techniques. Further, cellulase enzyme was immobilized on MNPs and efficacy of free and immobilized cellulase for hydrolysis of cellulose was evaluated. Results: Enzymatic hydrolysis of cellulose by immobilized enzyme showed enhanced catalytic activity after 48 hours compared to free enzyme. In first cycle of hydrolysis, immobilized enzyme hydrolyzed the cellulose and produced 19.5 +/- 0.15 gm/L of glucose after 48 hours. On the contrary, free enzyme produced only 13.7 +/- 0.25 gm/L of glucose in 48 hours. Immobilized enzyme maintained its stability and produced 6.15 +/- 0.15 and 3.03 +/- 0.25 gm/L of glucose in second and third cycle, respectively after 48 hours. Conclusion: This study will be very useful for sugar production because of enzyme binding efficiency and admirable reusability of immobilized enzyme, which leads to the significant increase in production of sugar from cellulosic materials. (AU)

Processo FAPESP: 16/22086-2 - Desenvolvimento de novos métodos nanotecnológicos aplicados ao pré-tratamento de biomassa lignocelulósica
Beneficiário:Avinash Prabhakarrao Ingle
Linha de fomento: Bolsas no Brasil - Pós-Doutorado