Functional Study On The Effect Of Aromatic Plants Essential Oil On Improving Sleeping Quality Of Young People

In these days, sleeping disorder happens more and more usually and emotionality insomnia is the commonest symptom. Those medicines which are most used for curing insomnia will produce bad side effects on the suffers who habitually use them. Aromatic plants essential oil can right avoid this kind of shortcomings, so it is purely natural and easy for taking.Now it has been proved that lavender essential oil has the effect of promoting sleep, but since it’s not easy for most people to accept the aroma of lavender essential oil, it needs other plant essential oils to adjust the aroma. Meanwhile, effect the aroma which has been adjust of lavender essential oil on changing sleeping quality has relatively less research. In order to seek a kind of convenient and effective essential oil recipe and its use dosage, temperature for changing sleeping quality and to explore the kind of the scientific design of plant vegetation for some special healing garden and to consolidate the basis of aromatic therapy landscape. Our goal is to create the plenty of plants. We tend to choose many kinds of aromatic and ornamental plants which will be different from the choose of plants of the ordinary essential oil iterm. Our conscious selection are the ligneous plants and perennial plants to test and verify the efficiency. So we plane to conduct some studies and the results are following.The first research was to select the essential recipe for relieving emotionality insomnia symptoms. We collected 60 volunteers to conduct the experiment of their preference to compound essential oil Ⅰ-Ⅴ(They were comprised by lavender oil,camphor tree oil and bergamot oil, which mixt by 5% gradients). The result showed that CEOⅠwas most popularand was chosen as essential oil under rest; then, add some Polysantol and Sandal(promoting sleep) and some α-Bisabolol oxide A and α-Bisabolol oxide B and Chamazulene(anti-allergy) into compound essential oil Ⅰto make it generally optimized to finally get experiment essential oil, namely,CEOⅥ.The second research was to use EEG technology and PSQI to make an objective and subjective evaluation of the effect of lavender pure essential oil and CEOⅥ on improving sleeping quality of young people.Firstly choosing participants aged 18~40 with 11~16 scores in PSQI from40 volunteers and they were divided at random into A、B groups(20volunteers in eatch group)to separately sniff and suck lavender oil and CEO Ⅵ oil, so people’s sleeping electrical experiment will be correspondingly divided into two parts: the first part to test 20 sleeping brain electrical wave in group before and after sniffing lavender; the second part to test 20 sleeping brain electrical wave before and after sniffing CEO Ⅵ in group B. The experimental result is that after continuously sniffing lavender oil for over 7 days, the sleeping quality of14 participants in group A has been improved(Brain waves change rate≥2%)and 6 participants no effects(Brain waves change rate≤2%), where differences notably existed(P < 0.05); in the second part, after continuously sniffing CEOⅥ for over 7 days, the sleeping quality of 17 participants in group B has been improved(Brain waves change rate≥2%)and3 participants no effects(Brain waves change rate≤2%), where differences notably existed(P < 0.05). Judging from above, CEO Ⅵ is better than lavender pure essential oil in changing sleeping quality. Meanwhile, the average grades of PSQI of 34 people from 40 participants dropped 3points.The fourth step was to analyze the chemical components of lavender,and CEO Ⅵ through GC-MS and the result turne out that the relativeamount of in lavender essential oil was 28.21%, linalool and that of linalyl acetate was 25.97%; the main chemical components in CEO Ⅵ are18.15% limonene, 31.34% linalool and 23.02% lnalyl acetate. Therefore,the main active ingredients in lavender essential oil and CEO Ⅵ are linalool and linalyl acetate and limonene can well improve the aroma of essential oil for promoting sleeping quality and can increase the effect. In consideration of the visual effect, we should choose at least three plans levels of arbor layer and shrub layer and herb layer. According the research conclusion, we should find out the plants with linalyl acetate and linalool and limonene.