Study on Lavender Essential Oil Chemical Compositions by GC-MS and Improved pGC

Abstract

Lavender essential oil from the aerial parts of Lavandula angustifolia Mill. was analyzed by GC-MS equipped with three capillary columns of different polarities, which were HP-1, HP-5 ms and HP-INNOWax. A total of 40 compounds were identified by GC-MS, accounting for 92.03% of the total essential oil compositions. Nineteen monomers were separated by column chromatography and improved preparative gas chromatography (pGC), six of which could not be retrieved from the NIST 14 (National Institute of Standards and Technology, USA; 14th edition) library database. Fifteen compounds were identified for the first time in lavender essential oil. The improved pGC not only doubled the efficiency but also greatly reduced the cost.

Enhancement of the Stabilities and Intracellular Antioxidant Activities of Lavender Essential Oil by Metal-Organic Frameworks Based on β-Cyclodextrin and Potassium Cation

“…After thorough dissolution and filtration, the absorbance of the supernatant was also measured at 233 nm. Both the amounts of the surface and total LEO were calculated using a standard curve of linalool, which is the main component of LEO [Dong et al, 2020]. The inclusion rate was also optimized by comparison among different mass core/wall ratios.…”

“…LEO/K-βCD-MOFs showed significantly higher CAA than LEO. The lavender essential oil has been reported with high contents of oxygenated monoterpenes (31.53%) and monoterpene hydrocarbons (8.03%) [Dong et al, 2020]. For example, linalool -which is the major oxygenated monoterpene of lavender -accounts for 19.71% of its essential oil [Dong et al, 2020].…”

“…The lavender essential oil has been reported with high contents of oxygenated monoterpenes (31.53%) and monoterpene hydrocarbons (8.03%) [Dong et al, 2020]. For example, linalool -which is the major oxygenated monoterpene of lavender -accounts for 19.71% of its essential oil [Dong et al, 2020]. The essential oils rich in monoterpenes and oxygenated monoterpenes generally show a high antioxidative potential [Deba et al, 2008;Tepe et al, 2004].…”

“…The potassium ion (K + ) is paired with seven oxygen atoms (O) of the four surrounding β-CD [Lu et al, 2015]. On the other hand, to further deduce the microencapsulation mechanism of the production of LEO/K-βCD-MOFs microcapsule, linalool is taken as an example as it is the main component of LEO [Dong et al, 2020]. The optimum mass core/wall ratio of linalool to K-βCD-MOFs at 1:10 is equaled to the molar ratio of about 1:1.…”

“…This herbal plant is commonly utilized in many industrial fields including cosmetics, perfumes, pharmaceuticals, and foods [Yuan et al, 2019]. Taking foods as an example, it is widely used as flavoring in beverages, herbal teas, ice creams, sweets, cakes, and other aromatic plant products [Dong et al, 2020]. Essential oil, the most important and popular product of this aromatic plant, mainly exists in the glands of the aerial parts including flowers and leaves [Lis- Balchin, 2002].…”