TP20 - Rapid detection of olive oil markers using a gas chromatography sensor system
- Event
- EUROSENSORS XXXVII
2025-09-07 - 2025-09-10
Wroclaw - Band
- Poster II
- Chapter
- Bio/chemical and Environmental Sensors
- Author(s)
- O. T. Penagos Carrascal, M. Czerny, T. Sauerwald, G. Zeh - Fraunhofer Institute for Process Engineering and Packaging IVV. Freising (Germany), J. Bröckelmann, M. Bücking - Fraunhofer Institute for Molecular Biology and Applied Ecology IME. Schmallenberg (Germany)
- Pages
- 389 - 390
- DOI
- 10.5162/EUROSENSORS2025/TP20
- ISBN
- 978-3-910600-07-2
- Price
- free
Abstract
A gas chromatography (GC) sensor system is proposed for the rapid analysis of olive oil. Alterations of olive oil were analyzed, with hexanal, E-2-hexenal, E-3-hexenyl acetate, and nonanal being identified as key marker compounds for its quality. These four key markers were successfully separated on a 3 m semi-polar GC column in 1 min. The sensor (SGP₄₀, Sensirion AG), coupled to a polar GC column, showed good reactivity towards the four identified marker compounds, although with considerable tailing (peak tailing factor ~4.3), which can be mitigated by applying the first derivative to the sensor signal.