The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
Emilio Marengo - One of the best experts on this subject based on the ideXlab platform.
-
ultra high performance liquid chromatography tandem high resolution mass spectrometry analysis of sixteen red beverages containing Carminic Acid identification of degradation products by using principal component analysis discriminant analysis
Food Chemistry, 2015Co-Authors: Fabio Gosetti, Ugo Chiuminatto, E Mazzucco, Rita Mastroianni, Emilio MarengoAbstract:Abstract The study investigates the sunlight photodegradation process of Carminic Acid, a natural red colourant used in beverages. For this purpose, both Carminic Acid aqueous standard solutions and sixteen different commercial beverages, ten containing Carminic Acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of Carminic Acid dye to be identified for each beverage.
-
Ultra-high-performance liquid chromatography/tandem high-resolution mass spectrometry analysis of sixteen red beverages containing Carminic Acid: identification of degradation products by using principal component analysis/discriminant analysis.
Food chemistry, 2014Co-Authors: Fabio Gosetti, Ugo Chiuminatto, E Mazzucco, Rita Mastroianni, Emilio MarengoAbstract:Abstract The study investigates the sunlight photodegradation process of Carminic Acid, a natural red colourant used in beverages. For this purpose, both Carminic Acid aqueous standard solutions and sixteen different commercial beverages, ten containing Carminic Acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of Carminic Acid dye to be identified for each beverage.
Fabio Gosetti - One of the best experts on this subject based on the ideXlab platform.
-
ultra high performance liquid chromatography tandem high resolution mass spectrometry analysis of sixteen red beverages containing Carminic Acid identification of degradation products by using principal component analysis discriminant analysis
Food Chemistry, 2015Co-Authors: Fabio Gosetti, Ugo Chiuminatto, E Mazzucco, Rita Mastroianni, Emilio MarengoAbstract:Abstract The study investigates the sunlight photodegradation process of Carminic Acid, a natural red colourant used in beverages. For this purpose, both Carminic Acid aqueous standard solutions and sixteen different commercial beverages, ten containing Carminic Acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of Carminic Acid dye to be identified for each beverage.
-
Ultra-high-performance liquid chromatography/tandem high-resolution mass spectrometry analysis of sixteen red beverages containing Carminic Acid: identification of degradation products by using principal component analysis/discriminant analysis.
Food chemistry, 2014Co-Authors: Fabio Gosetti, Ugo Chiuminatto, E Mazzucco, Rita Mastroianni, Emilio MarengoAbstract:Abstract The study investigates the sunlight photodegradation process of Carminic Acid, a natural red colourant used in beverages. For this purpose, both Carminic Acid aqueous standard solutions and sixteen different commercial beverages, ten containing Carminic Acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of Carminic Acid dye to be identified for each beverage.
Sylwia Gawȩda - One of the best experts on this subject based on the ideXlab platform.
-
Photosensitization and Photocurrent Switching in Carminic Acid/Titanium Dioxide Hybrid Material
The Journal of Physical Chemistry C, 2008Co-Authors: Sylwia Gawȩda, Graẑyna Stochel, Konrad SzaciłowskiAbstract:New photoactive material is obtained by chemisorption of Carminic Acid onto nanocrystalline titanium dioxide. Organic chromophore is anchored at the semiconductor surface via the neighboring carboxylate and phenolate groups; the anchorage is strengthened by formation of the six-membered chelate ring. Photoelectrochemical studies reveal strong photosensitization of the new material toward visible light: The photoelectrodes comprised of Carminic Acid−titanium dioxide hybrid material generate photocurrent within 300−650 nm window. Moreover, the direction of the photocurrent can be changed from anodic to cathodic and vice versa by application of appropriate photoelectrode potential, changes in electrolyte composition, and incident light wavelength. Geometry, electronic structure, and the photophysics of the neat chromophore and its model complex with TiIV oxo-species are studied in detail using the density functional theory method. Photoelectrochemical and spectroscopic studies supplemented with quantum-chemi...
-
photosensitization and photocurrent switching in Carminic Acid titanium dioxide hybrid material
Journal of Physical Chemistry C, 2008Co-Authors: Sylwia Gawȩda, Graẑyna Stochel, Konrad SzacilowskiAbstract:New photoactive material is obtained by chemisorption of Carminic Acid onto nanocrystalline titanium dioxide. Organic chromophore is anchored at the semiconductor surface via the neighboring carboxylate and phenolate groups; the anchorage is strengthened by formation of the six-membered chelate ring. Photoelectrochemical studies reveal strong photosensitization of the new material toward visible light: The photoelectrodes comprised of Carminic Acid−titanium dioxide hybrid material generate photocurrent within 300−650 nm window. Moreover, the direction of the photocurrent can be changed from anodic to cathodic and vice versa by application of appropriate photoelectrode potential, changes in electrolyte composition, and incident light wavelength. Geometry, electronic structure, and the photophysics of the neat chromophore and its model complex with TiIV oxo-species are studied in detail using the density functional theory method. Photoelectrochemical and spectroscopic studies supplemented with quantum-chemi...
Rita Mastroianni - One of the best experts on this subject based on the ideXlab platform.
-
ultra high performance liquid chromatography tandem high resolution mass spectrometry analysis of sixteen red beverages containing Carminic Acid identification of degradation products by using principal component analysis discriminant analysis
Food Chemistry, 2015Co-Authors: Fabio Gosetti, Ugo Chiuminatto, E Mazzucco, Rita Mastroianni, Emilio MarengoAbstract:Abstract The study investigates the sunlight photodegradation process of Carminic Acid, a natural red colourant used in beverages. For this purpose, both Carminic Acid aqueous standard solutions and sixteen different commercial beverages, ten containing Carminic Acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of Carminic Acid dye to be identified for each beverage.
-
Ultra-high-performance liquid chromatography/tandem high-resolution mass spectrometry analysis of sixteen red beverages containing Carminic Acid: identification of degradation products by using principal component analysis/discriminant analysis.
Food chemistry, 2014Co-Authors: Fabio Gosetti, Ugo Chiuminatto, E Mazzucco, Rita Mastroianni, Emilio MarengoAbstract:Abstract The study investigates the sunlight photodegradation process of Carminic Acid, a natural red colourant used in beverages. For this purpose, both Carminic Acid aqueous standard solutions and sixteen different commercial beverages, ten containing Carminic Acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of Carminic Acid dye to be identified for each beverage.
Ugo Chiuminatto - One of the best experts on this subject based on the ideXlab platform.
-
ultra high performance liquid chromatography tandem high resolution mass spectrometry analysis of sixteen red beverages containing Carminic Acid identification of degradation products by using principal component analysis discriminant analysis
Food Chemistry, 2015Co-Authors: Fabio Gosetti, Ugo Chiuminatto, E Mazzucco, Rita Mastroianni, Emilio MarengoAbstract:Abstract The study investigates the sunlight photodegradation process of Carminic Acid, a natural red colourant used in beverages. For this purpose, both Carminic Acid aqueous standard solutions and sixteen different commercial beverages, ten containing Carminic Acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of Carminic Acid dye to be identified for each beverage.
-
Ultra-high-performance liquid chromatography/tandem high-resolution mass spectrometry analysis of sixteen red beverages containing Carminic Acid: identification of degradation products by using principal component analysis/discriminant analysis.
Food chemistry, 2014Co-Authors: Fabio Gosetti, Ugo Chiuminatto, E Mazzucco, Rita Mastroianni, Emilio MarengoAbstract:Abstract The study investigates the sunlight photodegradation process of Carminic Acid, a natural red colourant used in beverages. For this purpose, both Carminic Acid aqueous standard solutions and sixteen different commercial beverages, ten containing Carminic Acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of Carminic Acid dye to be identified for each beverage.