title: Detection of orange juice frauds using front-face fluorescence spectroscopy and Independent Components Analysis.
abstract: The aim of this study was to find simple objective analytical methods to assess the adulteration of orange juice by grapefruit juice. The adulterations by addition of grapefruit juice were studied by 3D-front-face fluorescence spectroscopy followed by Independent Components Analysis (ICA) and by classical methods such as free radical scavenging activity and total flavonoid content. The results of this study clearly indicate that frauds by adding grapefruit juice to orange juice can be detected at percentages as low as 1%.
authors.affiliation: INRA, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France; AgroParisTech, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France; CNAM, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France. Electronic address: ammarifatouna@gmail.com.
authors.forename: Faten
authors.initials: F
authors.lastname: Ammari
authors.affiliation: INRA, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France; AgroParisTech, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France; CNAM, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France.
authors.forename: Lamia
authors.initials: L
authors.lastname: Redjdal
authors.affiliation: INRA, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France; AgroParisTech, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France; CNAM, UMR1145 Ingénierie Procédés Aliments, F-75005 Paris, France.
authors.forename: Douglas N
authors.initials: DN
authors.lastname: Rutledge
mesh_terms: D001628:Beverages / Q000032:analysis*; D032083:Citrus paradisi / Q000737:chemistry*; D032084:Citrus sinensis / Q000737:chemistry*; D005419:Flavonoids / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis*; D013050:Spectrometry, Fluorescence / Q000379:methods*
chemical_list: D005419:Flavonoids
keywords: 3D-front-face fluorescence spectroscopy; Adulteration; Free radical scavenging activity; Grapefruit juice; Independent Components Analysis; Orange juice; Total flavonoid content