Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Arely Cárdenas"'
Publikováno v:
Biomass Conversion and Biorefinery. 12:2463-2475
This study focused on identifying the best conditions and studying the effects of the operational variables on the integral valorization process of used coffee ground. The valorization approach was defined in two successive steps: oil extraction and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2792493bd55c68ec9093243ed9563ba
https://doi.org/10.1007/s13399-020-00854-3
https://doi.org/10.1007/s13399-020-00854-3
Publikováno v:
Analytical Methods. 11:5755-5760
This work evaluated the feasibility of using electrochemical methods to quantify antioxidants in food oil samples (mainly olive oil). The methods used for analysis were CUPRAC (cupric ion antioxidant capacity), DPPH (2,2-diphenyl-1-picrylhydrazyl), a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5d1443988a81ff3ef6fe825ea0dbf71
https://doi.org/10.1039/c9ay01921a
https://doi.org/10.1039/c9ay01921a
Autor:
Arely Cárdenas, Carlos Frontana
Publikováno v:
Sensors and Actuators B: Chemical. 313:128070
A feasibility study on the use of a carbon ink chemically modified electrode to quantify antioxidants, containing [Cu(Nc)2](NO3)2. First, [Cu(Nc)2](NO3)2 was prepared and characterized, to demonstrate similarity with electrochemical response of CUPRA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fc35ed65acfea13a8884447c01705df
https://doi.org/10.1016/j.snb.2020.128070
https://doi.org/10.1016/j.snb.2020.128070
Publikováno v:
Journal of Electroanalytical Chemistry. 729:116-120
The number of transferred electrons during oxidation of molecules with antioxidant capacity was approximately obtained by means of the slope of CUPRAC calibration plots, compared with that for the Trolox, where a two-electron mechanism is presumed. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1e7161ef482ebd2b36739f775a45b9e
https://doi.org/10.1016/j.jelechem.2014.07.019
https://doi.org/10.1016/j.jelechem.2014.07.019
Publikováno v:
Electrochimica Acta. 128:113-118
Cupric Reducing Antioxidant Capacity method, CUPRAC, is a reliable assay for determining Total Antioxidant Capacity (TAC) in samples of foods, beverages and pharmaceutical formulations. In this work, an electrochemical approach was used to quantify a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5df894493c5c2efb3b647a91475ba734
https://doi.org/10.1016/j.electacta.2013.10.191
https://doi.org/10.1016/j.electacta.2013.10.191
Publikováno v:
Procedia Chemistry. :62-65
CUPRAC is a method used to determine antioxidants quantifying the chromophore [Cu(Nc)2]+, generated upon increases of added antioxidants to a Cu(II) containing solution. In this work, an electrochemical alternative to quantify this complex is present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f0ae17e7cbe96306f43b20bcb53d768