2026-05-06T15:48:35Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/42942022-12-20T09:11:59Zcom_10259_4292com_10259_5086com_10259_2604com_10259.4_2516col_10259_4293col_10259.4_2517

Pino García, Raquel del 448 600 García Lomillo, Javier 207 600 Rivero Pérez, Maria Dolores 473 500 0000-0003-0907-4009 González San José, Mª Luisa 258 500 0000-0003-2973-7287 Muñiz Rodríguez, Pilar 380 500 0000-0002-9306-0082 2016-12-12T11:03:58Z 2016-12-12T11:03:58Z 2015-08 0021-8561 http://hdl.handle.net/10259/4294 Evaluation of the total antioxidant capacity of solid matrices without extraction steps is a very interesting alternative for food researchers and also for food industries. These methodologies have been denominated QUENCHER from QUick, 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 different chemical properties. Furthermore, new QUENCHER assays to measure scavenging capacity against superoxide, hydroxyl, and lipid 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 gave antioxidant capacity values significantly different from those obtained with water. The dilution of samples with powdered cellulose was discouraged because possible interferences with some of the matrices analyzed may take place. The autonomous government of Castilla y León (Project BU268A11-2) application/pdf eng American Chemical Society Journal of Agricultural and Food Chemistry. 2015, V. 63, n. 31, p. 6835-7094 http://dx.doi.org/10.1021/jf5042678 antioxidant activities ABTS Folin−Ciocalteu free radical scavenging assays cellulose Food Biochemistry Molecular biology Alimentos Bioquímica Biología molecular Adaptation and Validation of QUick, Easy, New, CHEap, and Reproducible (QUENCHER) Antioxidant Capacity Assays in Model Products Obtained from Residual Wine Pomace info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess THUMBNAIL Pino-JAFC_2015.pdf.jpg Pino-JAFC_2015.pdf.jpg IM Thumbnail image/jpeg 5075 https://riubu.ubu.es/bitstream/10259/4294/4/Pino-JAFC_2015.pdf.jpg aae9328485220a8037463738f679b974 MD5 4 ORIGINAL Pino-JAFC_2015.pdf Pino-JAFC_2015.pdf application/pdf 341748 https://riubu.ubu.es/bitstream/10259/4294/1/Pino-JAFC_2015.pdf 9f6b699642d09ddfb874db0209eb06a6 MD5 1 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/4294/2/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 2 TEXT Pino-JAFC_2015.pdf.txt Pino-JAFC_2015.pdf.txt Extracted text text/plain 66426 https://riubu.ubu.es/bitstream/10259/4294/3/Pino-JAFC_2015.pdf.txt 838e39779e4546d56884fc7dd0882090 MD5 3 10259/4294 oai:riubu.ubu.es:10259/4294 2022-12-20 10:11:59.972 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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