000164004 001__ 164004
000164004 005__ 20251121161350.0
000164004 0247_ $$2doi$$a10.1007/s00216-009-2766-0
000164004 0248_ $$2sideral$$a83925
000164004 037__ $$aART-2009-83925
000164004 041__ $$aeng
000164004 100__ $$0(orcid)0000-0002-3399-9987$$aBentayeb, Karim
000164004 245__ $$aAdaptation of the ORAC assay to the common laboratory equipment and subsequent application to antioxidant plastic films
000164004 260__ $$c2009
000164004 5060_ $$aAccess copy available to the general public$$fUnrestricted
000164004 5203_ $$aThe oxygen radical absorbance capacity (ORAC) method has been adapted to the instrumental laboratory and optimized for the determination of the antioxidant capacity of a novel active packaging. As the ORAC assay requires the monitorization of a reaction at controlled temperature by means of the fluorescence signal decrease over time, specific instrumental is usually necessary. In this work, a common liquid chromatographic device has been adapted to perform the ORAC assay, leaving it accessible to any laboratory. Using this adaptation, five different essential oils have been determined resulting in the following antioxidant order: clove (2.66 g Trolox per gram of essential oil), oregano (2.25), cinnamon (1.93), rosemary (1.66), and ginger (1.47). After incorporating the essential oils to the film, its antioxidant capacity has also been checked and related to the concentration of essential oil as well as the thickness of the active film. The results point out that for the same amount of essential oil incorporated measured as grams per square meter, thicker films have more antioxidant capacity than the thinner and more concentrated ones. Furthermore, the antioxidant capacity found in the films was always higher than expected taking into account the amount of essential oil incorporated. Some likely explanations have been proposed, leading to the improvement of the antioxidant film under development
000164004 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000164004 590__ $$a3.48$$b2009
000164004 591__ $$aCHEMISTRY, ANALYTICAL$$b6 / 70 = 0.086$$c2009$$dQ1$$eT1
000164004 591__ $$aBIOCHEMICAL RESEARCH METHODS$$b17 / 67 = 0.254$$c2009$$dQ2$$eT1
000164004 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000164004 700__ $$0(orcid)0000-0002-8765-4319$$aVera, Paula
000164004 700__ $$0(orcid)0000-0002-6532-2014$$aRubio, Carlos$$uUniversidad de Zaragoza
000164004 700__ $$0(orcid)0000-0003-2685-5739$$aNerín, Cristina$$uUniversidad de Zaragoza
000164004 7102_ $$12009$$2750$$aUniversidad de Zaragoza$$bDpto. Química Analítica$$cÁrea Química Analítica
000164004 773__ $$g394, 3 (2009), 903-910$$pAnal. Bioanal. Chem.$$tAnalytical and Bioanalytical Chemistry$$x1618-2642
000164004 8564_ $$s494513$$uhttps://zaguan.unizar.es/record/164004/files/texto_completo.pdf$$yPostprint
000164004 8564_ $$s2594789$$uhttps://zaguan.unizar.es/record/164004/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000164004 909CO $$ooai:zaguan.unizar.es:164004$$particulos$$pdriver
000164004 951__ $$a2025-11-21-14:24:32
000164004 980__ $$aARTICLE