Issue: Số 22 - Tháng 10 - 2022Hóa học - Công nghệ thực phẩm
Increasing the content of eucalyptol in cajeput essential oil by using the vacuum fractional distillation
Published: August 1, 2026
Abstract
In this study, the vacuum fractionation method is used to separate raw Cajeput essential oil into fractions based on different boiling temperatures. The study finds out four fractions that are very different in sensory. The used operating parameters include the pressure of 60 mmHg, stainless steel string (size 2 × 10 mm), and column height of 500 mm. The obtained eucalyptol content and recovery at these conditions are 74.8 and 96.4%, respectively. The obtained eucalyptol content are much higher than the minimum value (40%) specified in local technical regulations for Hue cajeput oil (QCDP 1:2017/TT-H).
Keywords
vacuum fractionationcajeputeucalyptol
References
1.
S. D. Cox, C. M. Mann, and J. L. Markham. (2001). Interactions between components of the essential oil of Melaleuca alternifolia. J. Appl. Microbiol., 91(3), 492-497.
2.
O. Motl, J. Hodačová, and K. Ubik. (1990). Composition of Vietnamese cajuput essential oil. Flavour Fragr. J., 5(1), 39-42.
3.
W. P. Silvestre, F. Agostini, L. A. R. Muniz, and G. F. Pauletti. (2016). Fractionating of green Mandarin (Citrus deliciosa Tenore) essential oil by vacuum fractional distillation. J. Food Eng., 178, 90-94.
4.
A. Farah et al. (2006). Fractional distillation effect on the chemical composition of Moroccan myrtle (Myrtus communis L.) essential oils. Flavour Fragr. J., 21(2), 351-354.
5.
J. A. Driscoll. (1980). Measuring the heat of vaporization using the Clausius-Clapeyron equation. J. Chem. Educ., 57(9), 667.
6.
R. N. Almeida, R. de P. Soares, and E. Cassel. (2018). Fractionation process of essential oils by batch distillation. Brazilian J. Chem. Eng., 35(3), 1129-1140.
