Effect of Hinoki and Meniki Essential Oils on Human Autonomic Nervous System Activity and Mood States.

Authors:
Dr. Sheng-yang Wang, PhD
Dr. Sheng-yang Wang, PhD
National Chung Hsing University
Distinguished Professor/Deputy Dean
Taichung | Taiwan, Province of China

Nat Prod Commun 2015 Jul;10(7):1305-8

Meniki (Chamecyparis formosensis) and Hinoki (C. obtusa) are precious conifers with excellent wood properties and distinctive fragrances that make these species popular in Taiwan for construction, interiors and furniture. In the present study, the compositions of essential oils prepared from Meniki and Hinoki were analyzed by gas chromatography-mass spectrometry (GC/MS). Thirty-six compounds were identified from the wood essential oil of Meniki, including Δ-cadinene, γ-cadinene, Δ-cadinol, α-muurolene, calamenene, linalyl acetate and myrtenol; 29 compounds were identified from Hinoki, including α-terpineol, α-pinene, Δ-cadinene, borneol, terpinolene, and limonene. Next, we examined the effect of Meniki and Hinoki essential oils on human autonomic nervous system activity. Sixteen healthy adults received Meniki or Hinoki by inhalation for 5 min, and the physiological and psychological effects were examined. After inhaling Meniki essential oil, participant's systolic blood pressure and heart rate (HR) were decreased, and diastolic blood pressure increased. In addition, sympathetic nervous activity (SNS) was significantly decreased, and parasympathetic activity (PSNS) was significantly increased. On the other hand, after inhaling Hinoki essential oil, systolic blood pressure, heart rate and PSNS were decreased, whereas SNA was increased. Indeed, both Meniki and Hinoki essential oils increased heart rate variability (HRV) in tested adults. Furthermore, in the Profile of Mood States (POMS) test, both Meniki and Hinoki wood essential oils stimulated a pleasant mood status. Our results strongly suggest that Meniki and Hinoki essential oils could be suitable agents for the development of regulators of sympathetic nervous system dysfunctions.

Download full-text PDF

Source
July 2015
237 Reads
1 Citation

Publication Analysis

Top Keywords

meniki hinoki
24
essential oils
24
hinoki essential
16
essential oil
12
blood pressure
12
heart rate
12
nervous system
12
hinoki
10
essential
9
meniki
9
mood states
8
systolic blood
8
sympathetic nervous
8
pressure heart
8
compounds identified
8
wood essential
8
autonomic nervous
8
oils human
8
system activity
8
human autonomic
8

Similar Publications