Molecules, Vol. 25, Pages 4865: Effects of Tangerine Essential Oil on Brain Waves, Moods, and Sleep Onset Latency

Molecules, Vol. 25, Pages 4865: Effects of Tangerine Essential Oil on Brain Waves, Moods, and Sleep Onset Latency Molecules doi: 10.3390/molecules25204865 Authors: Supaya Chandharakool Phanit Koomhin Jennarong Sinlapasorn Sarunnat Suanjan Jantamas Phungsai Noppharat Suttipromma Sumethee Songsamoe Narumol Matan Apsorn Sattayakhom Tangerine (Citrus tangerina) is one of the most important crops of Thailand with a total harvest that exceeds 100,000 tons. Citrus essential oils are widely used as aromatherapy and medicinal agents. The effect of tangerine essential oil on human brain waves and sleep activity has not been reported. In the present study, we therefore evaluated these effects of tangerine essential oil by measurement of electroencephalography (EEG) activity with 32 channel platforms according to the international 10–20 system in 10 male and 10 female subjects. Then the sleep onset latency was studied to further confirm the effect on sleep activity. The results revealed that different concentrations, subthreshold to suprathreshold, of tangerine oil gave different brain responses. Undiluted tangerine oil inhalation reduced slow and fast alpha wave powers and elevated low and mid beta wave powers. The subthreshold and threshold dilution showed the opposite effect to the brain compared with suprathreshold concentration. Inhalation of threshold concentration showed effectively decreased alpha and beta wave powers and increased theta wave...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research