Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Verónica Sánchez-Paz"'
Autor:
Verónica Sánchez-Paz, Aijaz Ahmad Dar, Xiang Gao, Changyao Liu, Yongliang Zhang, Qing Gu, Sonia Losada-Barreiro, Laurence S. Romsted, Gunaseelan Krishnan, Carlos Bravo-Díaz, María José Pastoriza-Gallego
Publikováno v:
Langmuir. 31:8961-8979
Two important and unsolved problems in the food industry and also fundamental questions in colloid chemistry are how to measure molecular distributions, especially antioxidants (AOs), and how to model chemical reactivity, including AO efficiency in o
Autor:
Sonia Losada-Barreiro, Patrícia Lisete-Torres, Fátima Paiva-Martins, Carlos Bravo-Díaz, Hélio M. T. Albuquerque, Verónica Sánchez-Paz
Publikováno v:
Journal of Agricultural and Food Chemistry. 60:7318-7325
We employed a kinetic method to determine the distributions of the antioxidants hydroxytyrosol (HT) and hydroxytyrosol acetate (HTA) between the oil, aqueous, and interfacial regions of a model food emulsion composed of stripped olive oil, acidic wat
Autor:
Carlos Bravo-Díaz, K. Gunaseelan, María José Pastoriza-Gallego, Sonia Losada-Barreiro, Laurence S. Romsted, Verónica Sánchez-Paz
Publikováno v:
Journal of Colloid and Interface Science. 320:1-8
Until recently, determining the distribution of antioxidants, AOs, between the oil, interfacial and aqueous regions of opaque emulsions has not worked well because the concentrations of AOs in interfacial regions cannot be determined separately from
Autor:
Verónica Sánchez-Paz, María José Pastoriza-Gallego, Carlos Bravo-Díaz, Alejandra Fernández-Alonso, Sonia Losada-Barreiro
Publikováno v:
Journal of Physical Organic Chemistry. 21:524-530
The kinetics and mechanism of the reaction between hydrophobic 4-hexadecylarenediazonium ions, 16-ArN and vitamin C, VC, in a model emulsion prepared by mixing octane, acidic (HCl) water and the non-ionic surfactant hexaethyleneglycol monododecyl eth
Dediazoniation of 1-naphthalenediazonium tetrafluoroborate in aqueous acid and in micellar solutions
Autor:
Verónica Sánchez-Paz, Alejandra Fernández-Alonso, Sonia Losada-Barreiro, Carlos Bravo-Díaz, María José Pastoriza-Gallego
Publikováno v:
International Journal of Chemical Kinetics. 40:301-309
We have measured the rates and product yields of dediazoniation of 1-naphthalenediazonium (1ND) tetrafluoroborate in the presence and absence of sodium dodecyl sulfate (SDS) micellar aggregates by employing a combination of UV–vis spectroscopy and
Publikováno v:
Helvetica Chimica Acta. 90:1559-1573
We have investigated the kinetics and mechanism of the reaction between 3-methylbenzenediazonium ions (3MBD) and methyl gallate (=methyl 3,4,5-trihydroxybenzoate; MG), in aqueous buffer solution by employing spectrophotometric (UV/VIS) and electroche
Publikováno v:
Organicbiomolecular chemistry. 13(3)
Knowledge on the driving force for the hydrophobic effect that partitions antioxidants (AOs) between the oil (O), aqueous (W) and interfacial (I) regions of food emulsions is crucial to predict their efficiency in inhibiting lipid oxidation and to pr
Publikováno v:
Journal of colloid and interface science. 389(1)
We evaluated the effects of the hydrophile-lipophile balance (HLB) and emulsifier concentration on the distribution of the antioxidants gallic acid (GA), propyl gallate (PG), and α-tocopherol (TOC) between the aqueous, interfacial, and oil regions o
Autor:
Carlos Bravo-Díaz, Fátima Paiva-Martins, Verónica Sánchez-Paz, Sonia Losada-Barreiro, Laurence S. Romsted
Publikováno v:
Journal of colloid and interface science. 370(1)
We determined the effects of emulsifier concentration and temperature on the distribution of gallic acid (GA) in a food-grade emulsion composed of 1:9 vol:vol stripped corn oil, acidic water and Tween 20. The distribution of GA can be defined by the
Publikováno v:
Trends in Colloid and Interface Science XXIV ISBN: 9783642190377
We have determined the distribution of the antioxidant tert-butylhydroquinone, TBHQ, between the oil and interfacial regions of an emulsion composed of stripped corn oil, acidic water and hexaethyleneglycol monododecyl ether, C12E6, by employing a ki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e643d919e1bf28132d5e8472259cfcc
https://doi.org/10.1007/978-3-642-19038-4_6
https://doi.org/10.1007/978-3-642-19038-4_6