A Different Smellscape:A Study Based on Human Health and Emotional Feedback of Negative Odorous Plants
The volatile components of aromatic plants have an important impact on human health and mental emotions.However,some negative odorous plants with not particularly friendly smells are commonly found in landscaping,aiming to explore the ef-fects of odorant plants on human emotions and physical and mental health.Taking Tulbaghia violacea,a commonly used herb in Zhengzhou,as an example,the volatiles of Tulbaghia violacea,a common aromatic plant,were collected by the dynamic headspace bagging method,and analyzed to control its odor by identifying and analyzing its odorant compounds in combi-nation with Gas chromatography-Olfactometry-Mass Spectrometry(GC-O-MS).GC-O-MS analyzed the composition of the compounds controlling the aroma.Brain waves,skin conductance response,and heart rate,which have a strong relationship with mood,were used as physiological indicators,and the anxiety-specific scale STAI,odor intensity,and pleasure rating scale scores were used as psychological indicators.A total of 12 main components were collected from the Tulbaghia violacea,and the largest content was hydrocoele,with a concentration of 98.7 mL/m3.Changes in theta,alpha,SMR,and M-β waves after sniffing the Tulbaghia violacea were significant,and the heart rate and skin conductance indexes showed an upward trend.The odor components of the odorous plants elevated the effect of negative emotions on the state of mind to a certain extent,leading to nervousness,panic and depression,decreasing energy.
smellscapeodorant fragrancecomponents of volatilesTulbaghia violaceahuman health and emotional feedback
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