Comparison of Essential Oils Compositions of Lemon Basil Ocimum citriodourum Vis. Straw Obtained by Hexane Extraction, Supercritical Carbon Dioxide Extraction and Hydrodistillation

Main Article Content

Somkiat Ngamprasertsith
Jaripong Menwa
Ruengwit Sawangkeaw

Abstract

Extraction of essential oil from lemon basil (Ocimum citriodourum) straw using hexane, supercritical carbon dioxide (SCCO2) and hydrodistillation was investigated in this study. The extracted samples were subjected to GC-MS to analyze the composition. The extraction yield of hexane in Soxhlet extractor was highest as 4.04%. The extraction yields of supercritical carbon dioxide (350 bar and 70oC) and hydrodistillation were 1.5% and 0.29%, respectively. The main components in essential oil from hexane extraction were caryophyllene oxide, neral, and geranial which were similar to sample from supercritical carbon dioxide extraction. The major components in essential oil from hydrodistillation were caryophyllene oxide, trans-alpha-bergamotene and linalool.

Article Details

Section
Applied Science Research Articles

References

[1] J. C. Francisco and B. Sivik, “Solubility of three monoterpenes, their mixtures and eucalyptus leaf oils in dense carbon dioxide,” Journal of Supercritical Fluids, vol. 23, pp. 11–19, 2002.

[2] V. R. Preedy, Essential Oils in Food Preservation. Flavor and safety, Academic Press, 2016 , pp. 231–238.

[3] G. Wenqiang, L. Shufen, Y. Ruixiang, T. Shaokun, and Q. Can, “Comparison of essential oils of clove buds extracted with supercritical carbon dioxide and other three traditional extraction methods,” Food Chemistry, vol. 101, no. 4, pp. 1558–1564, 2007.

[4] S. Zhao and D. Zhang, “Supercritical CO2 extraction of Eucalyptus leaves oil and comparison with Soxhlet extraction and hydro-distillation methods,” Separation and Purification Technology, vol. 133, no. 8, pp. 443–451, 2014.