Detection of counterfeit brand spirits using H NMR fingerprints in comparison to sensory analysis.
Journal: Food chemistry
Volume: 245
Issue:
Year of Publication: 2018
Affiliated Institutions:
Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Strasse , Karlsruhe, Germany. Electronic address: thomas.kuballa@cvuaka.bwl.de.
Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Strasse , Karlsruhe, Germany; Institute of Organic Chemistry and Institute for Biological Interfaces - Magnetic Resonance, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg , Karlsruhe, Germany. Electronic address: thomas.hausler@web.de.
Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Strasse , Karlsruhe, Germany; Department of Pharmaceutical Chemistry, University of Nairobi, P.O. Box -, Nairobi, Kenya. Electronic address: alex.okaru@gmail.com.
Centre for Addiction and Mental Health, Russell Street, ARF , Toronto, ON MS S, Canada. Electronic address: neufeld.maria@googlemail.com.
Department of Pharmaceutical Chemistry, University of Nairobi, P.O. Box -, Nairobi, Kenya. Electronic address: koabuga@uonbi.ac.ke.
Department of Pharmaceutical Chemistry, University of Nairobi, P.O. Box -, Nairobi, Kenya. Electronic address: okibwage@uonbi.ac.ke.
Centre for Addiction and Mental Health, Russell Street, ARF , Toronto, ON MS S, Canada; Clinical Psychology and Psychotherapy, Technische Universität Dresden, Chemnitzer Strasse , Dresden, Germany. Electronic address: jtrehm@gmail.com.
Institute of Organic Chemistry and Institute for Biological Interfaces - Magnetic Resonance, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg , Karlsruhe, Germany. Electronic address: burkhard.luy@kit.edu.
Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Strasse , Karlsruhe, Germany. Electronic address: stephan.walch@cvuaka.bwl.de.
Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Strasse , Karlsruhe, Germany; Clinical Psychology and Psychotherapy, Technische Universität Dresden, Chemnitzer Strasse , Dresden, Germany. Electronic address: lachenmeier@web.de.
Abstract summary
Beverage fraud involving counterfeiting of brand spirits is an increasing problem not only due to deception of the consumer but also because it poses health risks e.g. from possible methanol admixture. Suspicious spirit samples from Russia and Kenya were analysed using H nuclear magnetic resonance (NMR) spectroscopy in comparison to authentic products. Using linear regression analysis of spectral integral values, 4 counterfeited samples from Russia and 2 from Kenya were easily identifiable with R < 0.7. Sensory analysis using triangle test methodology confirmed significant taste differences between counterfeited and authentic samples but the assessors were unable to correctly identify the counterfeited product in the majority of cases. An important conclusion is that consumers cannot assumed to be self-responsible when consuming counterfeit alcohol because there is no general ability to organoleptically detect counterfeit alcohol.
Authors & Co-authors:
Kuballa
Hausler
Okaru
Neufeld
Abuga
Kibwage
Rehm
Luy
Walch
Lachenmeier
Study Outcome
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