Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10637/993
Título : Capillary electrophoresis for evaluating orange juice authenticity : study of spanish oranges.
Autor : Saavedra, Luis.
Rupérez Pascualena, Francisco Javier.
Autor : Barbas Arribas, Coral.
Materias: Orange juiceAdulterationOrganic acidsCapillary electrophoresis
Fecha de publicación : 19-sep-2001
Resumen : Fruit juices have very distinct organic acid profiles that can be used as fingerprints for establishing possible adulteration. Recently, our group developed and validated a capillary electrophoresis method using UV detection for determining citric, isocitric, tartaric, and malic acids in natural and commercial orange juices. Sample treatment consisted of only dilution and centrifugation or filtration. This method has been applied to evaluate these acids and their ratios in 63 samples of Navelina, the most common variety of Spanish oranges, over a three month period. This evaluation has been conducted to establish ranges of acid concentrations and to compare them with those found in commercial juices. The more reliable parameter, because of the lower variability in fresh samples, was found to be the citrate/isocitrate ratio with a value of 113 (RSD ) 10%). Only one of nine ramdonly selected commercial juices presented values within the range of those of the population of just-pressed Navelina orange juice. Moreover, three of them had measurable tartrate values, which is not a natural component of orange juice, showing mixtures with cheaper fruits.
Descripción : En: Journal of agricultural and food chemistry. 2001. vol. 49, n. 1 : 9-13 p.. 0021-8561
URI : http://hdl.handle.net/10637/993
Derechos: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
Otros identificadores : 000000450014
Aparece en las colecciones: Facultad de Farmacia

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Capillary_Saavedra_et_al_J_Agr_Food_Chem_2001.pdf56,25 kBAdobe PDFVisualizar/Abrir

Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.