Valorization of by-products from biomass processing through bio-catalytic oxidation

ADRIAN PARODI; PAULA SAPPIA; MAYRA FALCO; JULIO ZYGADLO; MARÍA LUJÁN FERREIRA; IVANA MAGARIO

Buenos Aires

Conferencia; 2nd RCN Conference on Pan American Biofuels & Bioenergy Sustainability.; 2016

his study focalizes in the valorisation of glycerol and limonene by catalytic oxidation and the characterization of the oxidized products in terms of its insecticide action. Not only pure standards of both substances but also raw samples of industries, from which are by-produced are considered to be tested for the oxidation reaction. Special attention is cared to the use of environmental-friendly processing free of toxic solvents and oxidants without the need of cofactors. In addition to their potential high selectivity and simplicity, two types of catalytic systems were pre-selected for screening studies: pure oxidases and metallic complexes based on Mn and Fe. Preliminary results relates to the use of a natural iron porphyrin ?named as hematin- as the oxidazing catalyst in first oxidation trials, optimization of reaction kinetics and analytics establishments. Hematin possess the ability to mimicking the action of peroxidases and catalases thus co-catalazing the decomposition of the oxidant, H2O2. The radicals formed by this route may cooperate in the oxidation of organic matter. Therefore a careful selection of reaction conditions in terms of solvent mixture, pH, temperature and molar ratio of reducing substrate to oxidant was required in order to afford a complete activity check.