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Volume 7, Issue 3(Suppl) J Biotechnol Biomater, an open access journal
ISSN: 2155-952X Euro Biotechnology 2017
September 25-27, 2017
17th EURO BIOTECHNOLOGY CONGRESS
September 25-27, 2017 Berlin, Germany
Synthesis of alkydic resins by enzymatic alcoholysis
Andreia de Araújo Morandim Giannetti and Renata Carvalho
Centro Universitário da FEI, Brazil
During the development of alkyd resin, parameters as acid value, the index saponification and medium molar mass of soybean
oil were first determined. After that, the best solvent to be used during the alcoholysis step was established by comparing and
determining the enzymatic activity of Lipozyme 435 enzyme in the presence of hexane, water, tetrahydrofuran and tert-butanol.
Then, alcoholysis was performed using different concentrations of enzyme, oil/glycerin relations and temperature, to determine
the best reaction conditions for obtaining the greatest concentration of monoacylglycerides and diacylglycerides. All samples were
analyzed using CLAE and the results were evaluated in Statistica 12.0 program. After analysis of data, it was obtained as optimal
reaction conditions a 9.36% concentration of enzyme, a weight ratio glycerol/oil of 1:3.5 (w/w) and a temperature of 56.73 °C. During
the final step of obtaining resin, solvents were added (xylene and mineral spirit) and phthalic anhydride in specified amounts to
give the resin at the end of the process viscosity characteristics and acid index as specified, without differences in the application
of the usual resin produced by chemical catalyst. It was studied further the recovery of the enzyme, their reuse in the process and,
consequently, cost savings, besides reducing solid waste generation, verifying that it showed significant amounts of enzyme activity
after use and recovery.
Biography
Andreia de Araújo Morandim Giannetti has completed her PhD at Paulista State University and Postdoctoral studies from the same. She is a teacher at the FEI
University Center. She has published more than 18 papers in reputed journals and has been serving as a reviewer in several renowned journals.
Andreia de Araújo Morandim Giannetti et al., J Biotechnol Biomater 2017, 7:3(Suppl)
DOI: 10.4172/2155-952X-C1-077