期刊
FOOD CONTROL
卷 137, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2022.108975
关键词
IRMS; ICP-MS; Stable isotopes; Traceability; Chemometrics; Avocado
资金
- Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), within the National Youth Guarantee System funded through the European Social Fund (ESF)
- Youth Employment Initiative (YEI)
- Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA)
- European Rural Development Fund (ERDF, EU) [PR.AVA.AVA201601.20]
- Accordo di Programma 2018-2019, Traceability unit of Fondazione Edmund Mach
This study successfully differentiated avocados from different origins by analyzing stable isotope and elemental composition profiles, revealing the potential of these features in tracing the geographical origin of avocados.
Avocado (Persea americana Mill) is a fruit consumed worldwide due to its valuable organoleptic and health-promoting properties. To date, no information is available about the isotopic composition of this foodstuff and this study determines the stable isotope composition of five bio-elements (C, N, S, H and O) and the composition profile of 46 macro, micro and trace elements. The stable isotope and elemental profiles were determined in 131 avocados from different producing regions (Spain, Brazil, Chile, Colombia, Kenya, Mexico, Peru, South Africa) collected over three years to study the main geographical differences. A PLS-DA model was performed combining the stable isotopes with the elemental profile, making it possible to distinguish the Spanish from the non-Spanish avocados with a high prediction accuracy (98% correct classification). The results of this study highlight the potential of stable isotope ratios and elemental profiles for tracing the geographical origin of avocados.
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