Search Results - "Oliveira, Luiz Fernando C."

Determination of amylose content in starch using Raman spectroscopy and multivariate calibration analysis by Almeida, Mariana R., Alves, Rafael S., Nascimbem, Laura B. L. R., Stephani, Rodrigo, Poppi, Ronei J., de Oliveira, Luiz Fernando C.

“…Fourier transform Raman spectroscopy and chemometric tools have been used for exploratory analysis of pure corn and cassava starch samples and mixtures of both…”
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Raman spectroscopy as a tool to the in situ study of three lichens species from Antarctica and Brazil by Fernandes, Rafaella F., Spielmann, Adriano A., de Oliveira, Luiz Fernando C.

“…In this investigation the chemistry of the lichens Gondwania regalis, Teloschistes exilis and Xanthoria candelaria (Teloschistaceae) have been recorded by…”
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Revisiting the Raman Spectra of Carbonate Minerals by Julliana F. Alves, Howell G. M. Edwards, Andrey Korsakov, Luiz Fernando C. de Oliveira

“…This work presents a new discussion about the vibrational properties of the carbonate ion displayed in several different environments. The microparameters…”
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Lactose crystallisation in concentrated whey: the influence of vat type by Simeão, Moisés, Silva, Cleuber R, Stephani, Rodrigo, Oliveira, Luiz Fernando C, Schuck, Pierre, Carvalho, Antônio F, Perrone, Ítalo T

“…This work aimed to describe the rate of lactose crystallisation in concentrated whey carried out using two different crystallisers, utilising central or…”
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The Diversity of Linear Conjugated Polyenes and Colours in Nature: Raman Spectroscopy as a Diagnostic Tool by Maia, Lenize F., De Oliveira, Vanessa E., Edwards, Howell G. M., De Oliveira, Luiz Fernando C.

“…This review is centered on the linear conjugated polyenes, which encompasses chromatic biomolecules, such as carotenoids, polyunsaturated aldehydes and…”
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Surface‐enhanced Raman scattering of Cis‐(dicyanomethylene) squarate ion on a silver substrate by Marques, Flávia C., Milán‐Garcés, Erix A., Oliveira, Vanessa E., Georgopoulos, Stéfanos L., Andrade, Gustavo F. S., Oliveira, Luiz Fernando C.

“…There has been increasing interest in the use of squaraines with different physicochemical properties. However, their applications in nanoplasmonics are…”
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Carotenes and carotenoids in natural biological samples: a Raman spectroscopic analysis by de Oliveira, Vanessa E., Castro, Harlem V., Edwards, Howell G. M., de Oliveira, Luiz Fernando C.

“…Raman spectroscopic studies of a range of naturally occurring carotenoids in over 50 specimens of plant tissue and a range of standard extracts have been…”
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Spectroscopic and Theoretical Study of the “Azo”-Dye E124 in Condensate Phase: Evidence of a Dominant Hydrazo Form by Almeida, Mariana R, Stephani, Rodrigo, Dos Santos, Hélio F, Oliveira, Luiz Fernando C. de

“…Spectroscopic techniques, including Raman, IR, UV/vis, and NMR were used to characterize the samples of the azo dye Ponceau 4R (also known as E124, New…”
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DEVELOPMENT AND VALIDATION OF A METHODOLOGY FOR QUANTIFICATION OF WHEY PROTEIN FRACTIONS IN MICROPARTICULATE INGREDIENTS by de Paula, Igor, Cunha, Carolina, Pinto, Caroline, Vitral, Júlia, Lazzarini, Paola, da Costa, Juliana, Tavares, Guilherme, Perrone, Ítalo, de Oliveira, Luiz Fernando, Stephani, Rodrigo

“…Microparticulated whey protein can be used as a fat substitute in foods to enhance their nutritional value and improve their sensory and rheological…”
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Vibrational Analysis of Natural Rhodochrosites by Raman Spectroscopy by Julliana F. Alves, Linus Pauling F. Peixoto, Luiz Fernando C. de Oliveira

“…This study investigates an unusual behavior observed in the Raman spectra of natural rhodochrosites under ambient conditions and varying temperature and…”
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New Insight on the Structural Trends of Polyphosphate Coacervation Processes by Silva, Maurício A. P, Franco, Douglas F, C. de Oliveira, Luiz Fernando

“…In this study new compositions of polyphosphate coacervates were obtained with the ions Ni2+ and Co2+. Samples of the glassy systems were prepared with…”
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Raman spectroscopy as a tool in differentiating conjugated polyenes from synthetic and natural sources by Fernandes, Rafaella F., Maia, Lenize F., Couri, Mara R.C., Costa, Luiz Antonio S., de Oliveira, Luiz Fernando C.

“…[Display omitted] •Pigments derived from polyenals were unequivocally identified by Raman spectroscopy.•Evaluation of differences and similarities between…”
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WATER VERSUS LACTOSE SOLUTION AS A DISPERSION MEDIUM FOR PARTICLE ANALYSIS IN SWEETENED CONDENSED MILK BY LASER DIFFRACTION by João Pablo F. Pereira, Igor L. de Paula, Rodrigo Stephani, Ítalo T. Perrone, Luiz Fernando C. de Oliveira, Antonio F. de Carvalho

“…Sweetened condensed milk contains various dispersed particles, such as proteins, fats, and lactose, all of which make it highly viscous. During sweetened…”
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Raman spectroscopy as a tool for polyunsaturated compound characterization in gastropod and limnic terrestrial shell specimens by de Oliveira, Leandra N., de Oliveira, Vanessa E., D’ávila, Sthefane, Edwards, Howell G.M., de Oliveira, Luiz Fernando C.

“…[Display omitted] •The colours of the Brazilian mollusc shells are due to the polyenes namely psittacofulvins.•The inorganic components present specific bands…”
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Role of the Substituent Effect over the Squarate Oxocarbonic Ring: Spectroscopy, Crystal Structure, and Density Functional Theory Calculations of 1,2-Dianilinosquairane by Silva, Carlos E, Dos Santos, Hélio F, Speziali, Nivaldo L, Diniz, Renata, de Oliveira, Luiz Fernando C

“…This work presents the crystal structure and the investigation under a supramolecular perspective of a squaric acid derivative obtained from the replacement of…”
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Raman spectroscopic analysis of the interaction between squaric acid and dimethylsulfoxide by Georgopoulos, Stéfanos L., Edwards, Howell G.M., de Oliveira, Luiz Fernando C.

“…•This work deals with the investigation of squaric acid in DMSO by Raman spectroscopy.•Solvent–solute interactions are analyzed by the dissociated and…”
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Fourier-transform Raman analysis of milk powder: a potential method for rapid quality screening by Almeida, Mariana R., Oliveira, Kamila de S., Stephani, Rodrigo, de Oliveira, Luiz Fernando C.

“…In this work, FT‐Raman spectroscopy was explored as a fast and reliable screening method for the assessment of milk powder quality and the identification of…”
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On the Azo/Hydrazo Equilibrium in Sudan I Azo Dye Derivatives by Ferreira, Gilson R, Garcia, Humberto Costa, Couri, Mara Rubia C, Dos Santos, Hélio F, de Oliveira, Luiz Fernando C

“…In this study, Raman, infrared, UV/vis, NMR, and single crystal X-ray diffraction spectroscopies are used to elucidate the tautomeric equilibrium of azo dyes…”
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A review on polyphosphate coacervates—structural properties and bioapplications by Franco, Douglas F., De Oliveira Barud, Hélida G., Barud, Hernane S., Oliveira Júnior, Osmir B., Meneguin, Andréia B., de Oliveira, Luiz Fernando C., Silva, Maurício A. P., Ribeiro, Sidney J. L., Nalin, Marcelo

“…The coacervation process of Graham’s Salt Na(PO 3 ) n enabled the preparation of polyphosphate coacervates (CPPs) by adding different metallic ions (M n+ ),…”
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Morphological characterization of whey protein concentrate admixture of microencapsulated curcumin by spray drying by Gomes, Jaqueline Vieira Piovezana, Oliveira, Lívya Alves, Francisquini, Júlia d’Almeida, Anunciação, Pamella Cristine, Stephani, Rodrigo, Oliveira, Luiz Fernando C., Perrone, Ítalo T., Carvalho, Antônio F., Della Lucia, Ceres Mattos

“…Spray drying was used to develop two products: whey protein concentrate (WPC) and whey protein concentrate admixture of microencapsulated curcumin (TWPC). We…”
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