Abstract
The oleoresin essential oils of Liquidambar formosana have potential therapeutic benefits. However, current research on L. formosana oleoresin essential oil is still in its early stages, and its chemotypic characterization is undefined. For better leveraging of plant resources and application of the essential oil, we collected 25 L. formosana oleoresin essential oil samples of individual trees from different geographical areas of Southern China. The essential oils were obtained by hydrodistillation and analyzed by gas chromatography–mass spectrometry (GC–MS) and gas chromatography–flame ionization detection (GC–FID). The major components of the essential oils were (E)-caryophyllene (3.3%-64.4%), α-pinene (0.6%-34.5%), β-pinene (0.6%-26.0%), camphene (0.3%-17.3%), and limonene (0.2%-7.9%). A chiral GC–MS analysis was carried out on the essential oil samples and (–)-α-Pinene, (–)-β-pinene, (–)-camphene, and (–)-limonene were the dominant enantiomers in L. formosana essential oil. The chemical categories of L. formosana oleoresin essential oils were clarified by agglomerative hierarchical cluster analysis (AHC) and principal component analysis (PCA). The multivariate analyses demonstrated that a total of four chemical groups can be delineated for L. formosana. The L. formosana essential oils were screened for antimicrobial activity against a panel of potentially pathogenic bacteria and fungi and showed promising antimicrobial activities with minimum inhibitory concentration (MIC) ≤ 625 μg/mL. These results highlight the economic value of L. formosana oleoresin essential oil, the importance of L. formosana sustainability, and the potential therapeutic benefits of its oleoresin essential oils.
Highlights
In recent years, essential oils or resins from aromatic plants have been widely applied in the food, cosmetic, and medicinal industries
The chemical categories of L. formosana oleoresin essential oils were clarified by agglomerative hierarchical cluster analysis (AHC) and principal component analysis (PCA)
We present the chemical characterization of L. formosana oleoresin essential oils, multivariate analyses to define potential chemotypes, and the screening of the oleoresin essential oils for activity against bacteria and fungi of dermatological or pulmonary importance
Summary
Essential oils or resins from aromatic plants have been widely applied in the food, cosmetic, and medicinal industries. Research and the related applications of aromatic plants play a more and more important role in preserving biodiversity, encouraging agroecology, and helping social and environmental development. The genus Liquidambar L. is one category of aromatic plants; it includes five species, in which two species and one variety are found in China. Hance is one of the species in the Hamamelidaceae family [1,2]. Known for its bright orange autumn leaves, L. formosana is a large, flowering, deciduous tree. The fruit of L. formosana (Chinese name LuLuTong) has been used as a traditional Chinese medicine for thousands of years [3]; the pharmacology and phytochemistry of L. formosana has been reviewed [4]
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
