文章基本信息

标题：Investigation of the thermodynamic and physicochemical properties of lavender oil ( Lavandula angustifolia Mill.)-ethanol-water system
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作者：Vanya Gandova ; Stanislava Tasheva ; Vanya Prodanova-Stefanova 等
期刊名称：E3S Web of Conferences
印刷版ISSN：2267-1242
电子版ISSN：2267-1242
出版年度：2021
卷号：286
页码：1-14
DOI：10.1051/e3sconf/202128602004
语种：English
出版社：EDP Sciences
摘要：The thermodynamic and physicochemical properties of lavender oil (Lavandula angustifoliaMill.)-ethanol-water system were measured. The chemical composition of solutions of the lavender oil in 70%, 75%, 80%, 85%, 90%, and 95% ethanol was determined using GC/MS analysis. The main compounds in the solutions are oxygenated monoterpenes (β-linalool, terpinen-4-ol,α-terpineol, and linalyl acetate), followed by monoterpene hydrocarbons ((Z)-β-ocimene and (E)-β-ocimene), and sesquiterpene hydrocarbons (β-caryophyllene and (E)-β-farnesene). The ternary phase diagrams were constructed. By multiply linear regression model for surface tension prediction was applied. The thermodynamic and kinetic parameters of lavender oil – ethanol - water system were calculated (energy of Gibb’s, enthalpy, entropy, energy of activation, and coefficient of diffusion).