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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Coating and incorporation of iron oxides into a magnetic-polymer composite to be used as lipase support for ester syntheses

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Author(s):
Mijone, Patricia D. [1] ; Vilas Boas, Renata N. [1] ; Bento, Heitor B. S. [1] ; Rodrigues Reis, Cristiano E. [1] ; de Castro, Heizir F. [1]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Biocatalysis Lab, Dept Chem Engn, Engn Sch Lorena, Estr Municipal Campinho S-N, BR-12602810 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: RENEWABLE ENERGY; v. 149, p. 1167-1173, APR 2020.
Web of Science Citations: 0
Abstract

The utilization of novel materials within the scope of biofuel synthesis has been represented as a significant step in the development of remarkable catalysts. The use of lipases in biodiesel production is often found as a cost-limiting step, as the operational expenditures in recovering such catalysts may lead to unfeasible market expectations. Herein, magnetic-polymer composites were evaluated as supports to immobilize commercial lipase, following the application in ethyl ester syntheses. A matrix of polysiloxane-polyvinyl alcohol (SiO2-PVA) was selected as the polymeric structure, following Fe3O4 and gamma Fe2O3 coating and incorporation assays to the support backbone. Characterization of the produced catalyst support materials was performed via analysis of X-ray powder diffraction, pore size, Scanning electron microscopy, Fourier transform infrared spectroscopy, and vibrating sample magnetometry. Burkholderia cepacia was then immobilized on the matrices, following transesterification of coconut oil with ethanol. The biodiesel samples generated were all within commercial standards, achieving conversion ester contents higher than 96.5%. The purified product samples (biodiesel) were essentially odorless and translucent appearance. Other properties such as density (873-876 kg m(-3)) and viscosity (3.76-3.93 mm(2) s(-1)) meet the specifications required by the ASTM to be used as a biofuel. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 16/10636-8 - From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales
Grantee:Roberto de Campos Giordano
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants