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Open AccessArticle

Effects of Inhaled Citronella Oil and Related Compounds on Rat Body Weight and Brown Adipose Tissue Sympathetic Nerve

1
Biopharmaca Research Center, Bogor Agricultural University, Jl. Taman Kencana No 3, Bogor 16128, Indonesia
2
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Bogor Agricultural University, Darmaga Campus, Bogor 16680, Indonesia
3
Primate Research Center, Bogor Agricultural University, Jl. Lodaya 2 No 5, Bogor 16151, Indonesia
4
Department of Anatomy, Physiology and Pharmacology, Faculty of Veterinary Medicine, Bogor Agricultural University, Darmaga Campus, Bogor 16680, Indonesia
5
Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Nutrients 2015, 7(3), 1859-1870; https://doi.org/10.3390/nu7031859
Received: 28 November 2014 / Revised: 23 February 2015 / Accepted: 3 March 2015 / Published: 12 March 2015
(This article belongs to the Special Issue Natural Products for Human Health)
Citronella oil is one of the most famous Indonesian essential oils, having a distinctive aroma. As with other essential oils, it is crucial to explore the effects of inhalation of this oil. Therefore, the aim of this research was to elucidate the effects of inhalation of citronella oil and its components isolated from Cymbopogon nardus L. (Poaceae), Indonesian local name: “Sereh Wangi” on the body weight, blood lipid profile, and liver function of rats, as well as on the sympathetic nerve activity and temperature of brown adipose tissue. Sprague-Dawley male adult rats fed with high fat diet (HFD) were made to inhale citronella oil, R-(+)-citronellal, and β-citronellol for five weeks, and the observations were compared to those of HFD rats that were not subjected to inhalation treatment. The results showed that inhalation of β-citronellol decreased feed consumption. As a consequence, the percentage of weight gain decreased compared with that in control group and the blood cholesterol level in the β-citronellol group was significantly lowered. Concentration of liver function enzymes were not significantly different among the groups. In conclusion, inhalation of citronella oil, specifically β-citronellol, decreased body weight by decreasing appetite, without any marked changes in liver enzyme concentrations. View Full-Text
Keywords: citronella oil; R-(+)-citronellal; β-citronellol; inhalation citronella oil; R-(+)-citronellal; β-citronellol; inhalation
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Batubara, I.; Suparto, I.H.; Sa’diah, S.; Matsuoka, R.; Mitsunaga, T. Effects of Inhaled Citronella Oil and Related Compounds on Rat Body Weight and Brown Adipose Tissue Sympathetic Nerve. Nutrients 2015, 7, 1859-1870.

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