Comparative analysis of the differences in volatile organic components of three lavender essential oils in Ili region using sensory evaluation, GC-IMS and GC-MS techniques

•Higher economic value specie was identified by differences in content over 5 years.•Relative deviation was first used to evaluate the stability of essential oil quality.•Joint use of GC-IMS and GC-MS improved the study of essential oil aroma profile.•5 components were identified to distinguish arom...

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Veröffentlicht in:Journal of Chromatography A 2024-08, Vol.1731, p.465197, Article 465197
Hauptverfasser: Lin, Yuying, Yu, Genfa, Zhang, Songxing, Zhu, Guangyong, Yi, Fengping
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Sprache:eng
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Zusammenfassung:•Higher economic value specie was identified by differences in content over 5 years.•Relative deviation was first used to evaluate the stability of essential oil quality.•Joint use of GC-IMS and GC-MS improved the study of essential oil aroma profile.•5 components were identified to distinguish aroma variation in lavender essential oil.•New insights into lavender cultivation and essential oil assessment in Ili region. Lavender (Lavandula angustifolia Mill.) is a widely utilized aromatic plant, with the economic value of its essential oil (EO) largely dependent on its aroma. This study investigated the differences in volatile organic compounds (VOCs) within the EOs of three species of lavender (H70-1, French blue, Taikong blue) in Ili region from 2019 to 2023 with the combination of sensory evaluation, gas chromatography-ion mobility spectrometry (GC-IMS), and gas chromatography-mass spectrometry (GC-MS). The EO from Taikong blue lavender exhibited greater stability in VOC composition compared to the other two varieties. Orthogonal Partial Least Squares Discriminant Analysis (OPLS-DA) effectively distinguished the aromas of the three EOs aroma. Combining odor activity value (OAV) and variable importance in projection (VIP) values identified five VOCs crucial for discriminating among the three lavender EO types. This study provides theoretical support for the cultivation and commercialization of lavender as an industrial crop, as well as for quality control of EO production in the Ili region.
ISSN:0021-9673
1873-3778
DOI:10.1016/j.chroma.2024.465197