Characterisation and authenticity assessment of rosemary and laurel essential oils using compound specific isotope analysis

Simić, Pavle (avtor), Strojnik, Lidija (avtor), Ogrinc, Nives (avtor), Poklar Ulrih, Nataša (avtor)

The chemical composition, antioxidant activity and authenticity of commercially available rosemary (REO) and laurel (LEO) essential oils from the Slovenian market were investigated. In both EOs, 1,8-cineole was identified as the most abundant compound. It was determined that VOCs in lower concentrations contribute more to antioxidant activity compared to more abundant compounds. Key isotopic markers for adulteration detection were determined using compound-specific isotope analysis (CSIA). The sensitivity of the developed method was evaluated, demonstrating the best sensitivity for linalool in REO and for sample contains more than 19% of linalool (47% for α α-pinene in LEO, which means if the -pinene) synthetic fraction, it is almost certain (95% probability) that falsification will be suspected. When analysing commercial EOs declared as natural, the δ 13 C VPDB values indicated possible falsification of several VOCs in EOs. The developed methodology has shown great promise in the quality control of EOs, verifying labelling claims and detecting adulteration.

• Jezik: Angleški jezik
• Ključne besede: GC-C-IRMS, rosemary, laurel, essential oil, authenticity, antioxidant activity
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2026
• Št. strani: 11 str.
• Številčenje: Vol. 517, art. 149404
• PID: 20.500.12556/RUL-182929
• UDK: 665.52/.54:543.61
• ISSN pri članku: 0308-8146
• DOI: 10.1016/j.foodchem.2026.149404
• COBISS.SI-ID: 278281219
• Datum objave v RUL: 28.05.2026

Gradivo je del revije

• Naslov: Food chemistry
• Skrajšan naslov: Food chem.
• Založnik: Applied Science Publishers
• ISSN: 0308-8146
• COBISS.SI-ID: 6385415

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: eterična olja, rožmarin, lovor, potvorbe, pristnost, antioksidativna aktivnost