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Selection of Lipases for the Synthesis of Biodiesel from Jatropha Oil and the Potential of Microwave Irradiation to Enhance the Reaction Rate.

The present study deals with the enzymatic synthesis of biodiesel by transesterification of Jatropha oil (Jatropha curcas L.) with ethanol in a solvent-free system. Seven commercial lipase preparations immobilized by covalent attachment on epoxy-polysiloxane-polyvinyl alcohol composite (epoxy-SiO2-P...

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Published in:BioMed Research International Vol. 2016; pp. 1 - 14
Main Authors: Souza, Livia T. A., Mendes, Adriano A., Castro, Heizir F. de
Format: equations & formulas research tables/charts Journal Article
Published: Wiley-Blackwell 10/27/2016
Online Access:View this record in EBSCOhost
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      jtl: BioMed Research International
      issn: 23146133
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      dt: 10/27/2016
      vid: 2016
      pid: 480
      pub: Wiley-Blackwell
      place: Malden, Massachusetts
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        119102620
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        10.1155/2016/1404567
        119102620
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      tig:
        atl: Selection of Lipases for the Synthesis of Biodiesel from Jatropha Oil and the Potential of Microwave Irradiation to Enhance the Reaction Rate.
      aug:
        au:
          Souza, Livia T. A.
          Mendes, Adriano A.
          Castro, Heizir F. de
        affil: Department of Chemical Engineering, Engineering School of Lorena, University of São Paulo, 12602-810 Lorena, SP, Brazil
      sug:
        subj:
          Lipase Analysis
          Energy-Generating Resources
          Plant Oils Analysis
          Microwaves
          Biotechnology
          Resins, Synthetic
          Carboxylic Acids
          Descriptive Statistics
          Fatty Acids
          Biological Assay
          Chromatography, Gas
          Plants
          Kinematics
          Viscosity
          Data Analysis Software
          Funding Source
      ab: The present study deals with the enzymatic synthesis of biodiesel by transesterification of Jatropha oil (Jatropha curcas L.) with ethanol in a solvent-free system. Seven commercial lipase preparations immobilized by covalent attachment on epoxy-polysiloxane-polyvinyl alcohol composite (epoxy-SiO2-PVA) were tested as biocatalysts. Among them, immobilized lipases from Pseudomonas fluorescens (lipase AK) and Burkholderia cepacia (lipase PS) were the most active biocatalysts in biodiesel synthesis, reaching ethyl ester yields (FAEE) of 91.1 and 98.3% at 72 h of reaction, respectively. The latter biocatalyst exhibited similar performance compared to Novozym® 435. Purified biodiesel was characterized by different techniques. Transesterification reaction carried out under microwave irradiation exhibited higher yield and productivity than conventional heating. The operational stability of immobilized lipase PS was determined in repeated batch runs under conventional and microwave heating systems, revealing half-life times of 430.4 h and 23.5 h, respectively.
      pubtype: Academic Journal
      doctype:
        equations & formulas
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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