| Title: | Authentication of key aroma compounds in apple using stable isotope approach |
| Author(s): | Strojnik L; Stopar M; Zlatic E; Kokalj D; Gril MN; Zenko B; Znidarsic M; Bohanec M; Boshkovska BM; Lustrek M; Gradisek A; Potocnik D; Ogrinc N; |
| Address: | "Department of Environmental Sciences, Jozef Stefan Institute, Ljubljana 1000, Slovenia; Jozef Stefan International Postgraduate School, Ljubljana 1000, Slovenia. Electronic address: lidija.strojnik@ijs.si. Agricultural Institute of Slovenia, Ljubljana 1000, Slovenia. Electronic address: matej.stopar@kis.si. Biotechnical Faculty, University of Ljubljana, Ljubljana 1000, Slovenia. Electronic address: Emil.Zlatic@bf.uni-lj.si. Biotechnical Faculty, University of Ljubljana, Ljubljana 1000, Slovenia. Electronic address: doris.kokalj@bf.uni-lj.si. Frutarom Etol, Skofja vas, 3211, Slovenia. Electronic address: MNGril@si.frutarom.com. Department of Knowledge Technologies, Jozef Stefan Institute, Ljubljana 1000, Slovenia. Electronic address: bernard.zenko@ijs.si. Department of Knowledge Technologies, Jozef Stefan Institute, Ljubljana 1000, Slovenia. Electronic address: martin.znidarsic@ijs.si. Department of Knowledge Technologies, Jozef Stefan Institute, Ljubljana 1000, Slovenia. Electronic address: marko.bohanec@ijs.si. Department of Knowledge Technologies, Jozef Stefan Institute, Ljubljana 1000, Slovenia. Electronic address: Biljana.Mileva@ijs.si. Department of Intelligent Systems, Jozef Stefan Institute, Ljubljana 1000, Slovenia. Electronic address: mitja.lustrek@ijs.si. Department of Intelligent Systems, Jozef Stefan Institute, Ljubljana 1000, Slovenia. Electronic address: anton.gradisek@ijs.si. Department of Environmental Sciences, Jozef Stefan Institute, Ljubljana 1000, Slovenia; Jozef Stefan International Postgraduate School, Ljubljana 1000, Slovenia. Electronic address: doris.potocnik@ijs.si. Department of Environmental Sciences, Jozef Stefan Institute, Ljubljana 1000, Slovenia; Jozef Stefan International Postgraduate School, Ljubljana 1000, Slovenia. Electronic address: nives.ogrinc@ijs.si" |
| DOI: | 10.1016/j.foodchem.2018.10.140 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "Gas chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS) for the analysis of key volatile compounds sampled using headspace solid phase microextraction (HS-SPME) is an appropriate tool for authenticity assessment of apple aromas. The current research characterises 18 laboratory produced and 15 commercial apple recovery aroma samples, establishes a database of delta(13)C values of 16 aroma compounds with respect to their origin (synthetic and natural), and assesses the authenticity of commercially available aroma compounds. Analysis of so-called natural aroma products, revealed delta(13)C values that were within the expected authentic range although the data did reveal possible falsifications. The sensitivity of the method was evaluated through simple isotope mass balance calculation. Falsification identification is possible for most aromatic substances when the amount of added synthetic compound is in tens of percent" |
| Keywords: | Carbon Isotopes/chemistry Gas Chromatography-Mass Spectrometry Isotope Labeling Malus/*chemistry/metabolism Solid Phase Microextraction Volatile Organic Compounds/*analysis/isolation & purification Apple Aroma Authenticity Database Gc-c-irms Hs-spme Stabl; |
| Notes: | "MedlineStrojnik, Lidija Stopar, Matej Zlatic, Emil Kokalj, Doris Gril, Mateja Naglic Zenko, Bernard Znidarsic, Martin Bohanec, Marko Boshkovska, Biljana Mileva Lustrek, Mitja Gradisek, Anton Potocnik, Doris Ogrinc, Nives eng England 2018/12/07 Food Chem. 2019 Mar 30; 277:766-773. doi: 10.1016/j.foodchem.2018.10.140. Epub 2018 Nov 2" |
