RT info:eu-repo/semantics/article
T1 Adaptation and Validation of QUick, Easy, New, CHEap, and Reproducible (QUENCHER) Antioxidant Capacity Assays in Model Products Obtained from Residual Wine Pomace
A1 Pino García, Raquel del
A1 García Lomillo, Javier
A1 Rivero Pérez, Maria Dolores
A1 González San José, Mª Luisa
A1 Muñiz Rodríguez, Pilar
K1 antioxidant activities
K1 ABTS
K1 Folin−Ciocalteu
K1 free radical scavenging assays
K1 cellulose
K1 Food
K1 Biochemistry
K1 Molecular biology
K1 Alimentos
K1 Bioquímica
K1 Biología molecular
AB Evaluation of the total antioxidant capacity of solid matrices without extraction steps is a very interestingalternative for food researchers and also for food industries. These methodologies have been denominated QUENCHER fromQUick, Easy, New, CHEap, and Reproducible assays. To demonstrate and highlight the validity of QUENCHER (Q) methods,values of Q-method validation were showed for the first time, and they were tested with products of well-known differentchemical properties. Furthermore, new QUENCHER assays to measure scavenging capacity against superoxide, hydroxyl, andlipid peroxyl radicals were developed. Calibration models showed good linearity (R2 > 0.995), proportionality and precision (CV< 6.5%), and acceptable detection limits (<20.4 nmol Trolox equiv). The presence of ethanol in the reaction medium gaveantioxidant capacity values significantly different from those obtained with water. The dilution of samples with powderedcellulose was discouraged because possible interferences with some of the matrices analyzed may take place.
PB American Chemical Society
SN 0021-8561
YR 2015
FD 2015-08
LK http://hdl.handle.net/10259/4294
UL http://hdl.handle.net/10259/4294
LA eng
NO The autonomous government ofCastilla y León (Project BU268A11-2)
DS Repositorio Institucional de la Universidad de Burgos
RD 24-dic-2024