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Combined targeted and untargeted profiling of volatile aroma compounds with comprehensive two-dimensional gas chromatography for differentiation of virgin olive oils according to variety and geographical origin.
Food Chem. 2019 Jan 01; 270:403-414.FC

Abstract

Comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC × GC-TOF-MS) was combined with conventional mono-dimensional GC-MS to differentiate Croatian virgin olive oils (VOO) according to variety and geographical origin, based on the profile of volatile aroma compounds isolated by HS-SPME. More than 1000 compounds were detected after untargeted profiling and 256 were identified or tentatively identified, providing one of the most detailed profiles of volatile aroma compounds in VOO up to date. Among them, 131 volatile compounds were significantly different across monovarietal VOOs, while 60 were found useful for the discrimination according to geographical origin. Many major lipoxygenase and minor non-lipoxygenase-generated compounds were shown to have discriminating ability with respect to both factors. Multivariate statistical analysis extracted twenty-one volatile markers with the highest discriminant power for varietal differentiation. The approach reported may have practical application in better understanding, defining, managing, and communicating the varietal or geographical typicity of monovarietal VOOs.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Lukić I
Institute of Agriculture and Tourism, K. Huguesa 8, 52440 Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Svetošimunska 25, 10000 Zagreb, Croatia. Electronic address: igor@iptpo.hr.
Carlin S
Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach, 1 38010 S. Michele all'Adige, TN, Italy; Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 208, 33100 Udine, Italy.
Horvat I
Institute of Agriculture and Tourism, K. Huguesa 8, 52440 Poreč, Croatia.
Vrhovsek U
Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via E. Mach, 1 38010 S. Michele all'Adige, TN, Italy.

MeSH

Gas Chromatography-Mass SpectrometryLipoxygenaseOdorantsOlive OilVolatile Organic Compounds

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30174064

Citation

Lukić, Igor, et al. "Combined Targeted and Untargeted Profiling of Volatile Aroma Compounds With Comprehensive Two-dimensional Gas Chromatography for Differentiation of Virgin Olive Oils According to Variety and Geographical Origin." Food Chemistry, vol. 270, 2019, pp. 403-414.
Lukić I, Carlin S, Horvat I, et al. Combined targeted and untargeted profiling of volatile aroma compounds with comprehensive two-dimensional gas chromatography for differentiation of virgin olive oils according to variety and geographical origin. Food Chem. 2019;270:403-414.
Lukić, I., Carlin, S., Horvat, I., & Vrhovsek, U. (2019). Combined targeted and untargeted profiling of volatile aroma compounds with comprehensive two-dimensional gas chromatography for differentiation of virgin olive oils according to variety and geographical origin. Food Chemistry, 270, 403-414. https://doi.org/10.1016/j.foodchem.2018.07.133
Lukić I, et al. Combined Targeted and Untargeted Profiling of Volatile Aroma Compounds With Comprehensive Two-dimensional Gas Chromatography for Differentiation of Virgin Olive Oils According to Variety and Geographical Origin. Food Chem. 2019 Jan 1;270:403-414. PubMed PMID: 30174064.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Combined targeted and untargeted profiling of volatile aroma compounds with comprehensive two-dimensional gas chromatography for differentiation of virgin olive oils according to variety and geographical origin. AU - Lukić,Igor, AU - Carlin,Silvia, AU - Horvat,Ivana, AU - Vrhovsek,Urska, Y1 - 2018/07/20/ PY - 2018/03/14/received PY - 2018/07/13/revised PY - 2018/07/19/accepted PY - 2018/9/4/entrez PY - 2018/9/4/pubmed PY - 2019/4/24/medline KW - Comprehensive two-dimensional gas chromatography KW - Croatia KW - Geographical origin KW - Mono-dimensional KW - Multivariate analysis KW - Variety KW - Virgin olive oil KW - Volatile aroma compounds SP - 403 EP - 414 JF - Food chemistry JO - Food Chem VL - 270 N2 - Comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC × GC-TOF-MS) was combined with conventional mono-dimensional GC-MS to differentiate Croatian virgin olive oils (VOO) according to variety and geographical origin, based on the profile of volatile aroma compounds isolated by HS-SPME. More than 1000 compounds were detected after untargeted profiling and 256 were identified or tentatively identified, providing one of the most detailed profiles of volatile aroma compounds in VOO up to date. Among them, 131 volatile compounds were significantly different across monovarietal VOOs, while 60 were found useful for the discrimination according to geographical origin. Many major lipoxygenase and minor non-lipoxygenase-generated compounds were shown to have discriminating ability with respect to both factors. Multivariate statistical analysis extracted twenty-one volatile markers with the highest discriminant power for varietal differentiation. The approach reported may have practical application in better understanding, defining, managing, and communicating the varietal or geographical typicity of monovarietal VOOs. SN - 1873-7072 UR - https://www.unboundmedicine.com/medline/citation/30174064/Combined_targeted_and_untargeted_profiling_of_volatile_aroma_compounds_with_comprehensive_two_dimensional_gas_chromatography_for_differentiation_of_virgin_olive_oils_according_to_variety_and_geographical_origin_ DB - PRIME DP - Unbound Medicine ER -
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