Estudo teórico e experimental de espectros infravermelho de ésteres de ácido graxo presentes na composição do biodiesel de soja

  title={Estudo te{\'o}rico e experimental de espectros infravermelho de {\'e}steres de {\'a}cido graxo presentes na composiç{\~a}o do biodiesel de soja},
  author={Eduardo W. Castilho-Almeida and H{\'e}lio F. Dos Santos and Alisson Marques de Miranda and A. J{\'o}rio and E. H. M. Ferreira and C. Achete and Raigna A.S.Z. Armond and Cleber P. A. Anconi and Wagner B. De Almeida},
  journal={Qu{\'i}mica Nova},
In this work, theoretical and experimental infrared spectra of fatty acid methyl esters (FAME) contained in soybean biodiesel were analyzed seeking the assignments of the relevant vibrational modes to characterize crude soybean oil and soybean biodiesel. The results showed the usefulness of infrared spectra for monitoring saturated and unsaturated compounds as well as impurities (mainly glycerol) in raw samples. This is the first step toward proposing an efficient molecular spectroscopy routine… Expand
Síntese de biodiesel a partir do farelo de arroz via catálise enzimática
PEREIRA, Jose Evandro Saraiva. Synthesis of biodiesel from rice bran via enzymatic catalysis. Porto Alegre. 2013. Master. Graduation Program in Materials Engineering and Technology, PONTIFICALExpand
Catole coconut (Syagrus cearensis) oil: physicochemical characterization and thermo-oxidative stability by TG/DTG/DTA and Rancimat
Vegetable oils are subjected to heat treatments during processing and changes during storage. Thus, it is required, for usage as a food source, the evaluation of their thermo-oxidative stability andExpand
Line shape analysis of the Raman spectra from pure and mixed biofuels esters compounds
This work provides a systematic and comprehensible lineshape analysis of the Raman spectra from (i) the main esters that compose the soybean biodiesel, namely Palmitate, Stearate, Oleate, LinoleateExpand
Quality Control of Biodiesel Content of B7 Blends of Methyl Jatropha and Methyl Crambe Biodiesels Using Mid-Infrared Spectroscopy and Multivariate Control Charts Based on Net Analyte Signal
In this work, mid-infrared spectroscopy and multivariate control charts based on the net analyte signal (NAS) were applied for quality control of B7 (7% biodiesel and 93% diesel) biodiesel/dieselExpand
Thermal and catalytic micropyrolysis for conversion of cottonseed oil dregs to produce biokerosene
Abstract A sample of cottonseed oil dregs was obtained by the alkali pretreatment of the oil to remove free fatty acids and other impurities before an industrial biodiesel production process. TheExpand
Chemical composition, bioactivities and cinematic vicosity of cucurbita argyrosperma seed oil
a Federal University of Roraima,Boa Vista-RR-Brazil b Departament of Chemistry, Center for Research and Graduate Studies in Science and Technology, NPPGCT, UFRR, Campus Paricarana Campus, CEPExpand
Cereus jamacaru D.C. (Mandacaru): a Promising Native Brazilian Fruit as a Source of Nutrients and Bioactives Derived from its Pulp and Skin
Results indicate that mandacaru, currently consumed only locally, can be an important source of nutrients and antioxidants for the general population and also for industrial use. Expand
Multi-technical analysis as a tool to investigate structural species in the “replica” of First Mass in Brazil painting by Sebastião Vieira Fernandes
Abstract Constituent materials of the painting “ Primeira Missa no Brasil ” by Sebastiao Vieira Fernandes, which belongs to the Historical Museum of Santa Catarina, were analyzed by using imagingExpand
Simultaneous Biosynthesis of Polyhydroxyalkanoates and Extracellular Polymeric Substance (EPS) from Crude Glycerol from Biodiesel Production by Different Bacterial Strains
These characteristics render these PHAs more appropriate and suitable for processes that require high temperatures, such as extrusion, increasing the possibility of industrial applications, especially in the packaging sector. Expand
RESUMO Este trabalho teve como objetivo avaliar a síntese de biodiesel por transesterificação enzimática pela enzima Eversa® Transform de amostras de óleo comercial termicamente tratado. O óleoExpand


Box–Behnken design for studying inclusion complexes of triglycerides and α-cyclodextrin: application to the heating protocol in molecular-dynamics simulations
In the present work, a Box–Behnken 34 design was applied to study inclusion complexes consisting of a saturated triglyceride with twelve carbons in each of the three side chainsExpand