Analysis Of Volatile Components Of Four Aromatic Plants And Their Effect On Human Health

Bying combing the related literature of healing landscape,aromatherapy and aromatic plants,this paper concludes the frequently-used aromatic plants types in healing landscape and other gardens,then selects Viburnum macrocephalum f.Keteleeri,Rosa banksiae var.Lutea,Michelia figo and Myrfus communis ‘Variegata’,four aromatic plants frequently-used in general gardens but not yet in Healing landscape,to carry on research.The volatiles of four living plants were collected by headspace collection method,and analyzed the volatiles components and ontent by ATD-GC/MS.Through the human smell experiment to use the bio-feedback instrument and electronic sphygmomanometer to measure people’s physiological indices before and after smelling,such as brain waves,blood pressure,heart rate and so on.And POMS and SCL-90 were used to evaluate the psychological impact on subjects before and after the experiment.The volatile test results showed that the volatiles of these four plants are diverse,mainly composed of esters,alcohols and their oxides,alkanes and naphthenes,aldehydes,ketones,carboxylic acids,terpenes and other olefins.A total of 81.65%(30)compounds were detected in the flowering branches and leaves of the Viburnum macrocephalum f.keteleeri,the main volatiles were 1-pentene,2,4,4-trimethyl(18.41%),acetic acid(8.96%),methyl salicylate(5.26%),diethyl phthalate(5.01%),1-hexanol,2-ethyl(4.50%)and α-farnesene(4.32%).A total of 89.04%(29)compounds were detected in the flowering branches and leaves of Rosa banksiae var.Lutea,the main volatiles were 1-pentene,2,4,4-trimethyl(29.55%),diethyl phthalate(16.40%),dodecane(7.19%),1-hexanol,2-ethyl(5.96%),and 2-pentene,2,4,4-trimethyl(4.40%).A total of 98.63%(53)compounds were detected in the flowering branches and leaves of Michelia figo,the main volatiles were acetic scid,1-methylpropyl ester(64.90%),propanoic scid,2-methyl-,ethyl ester(11.61%),butanoic acid,ethyl ester(3.95%),hexanoic scid,ethyl ester(3.85%),ethyl acetate(2.96%),and 1-butanol,2-methyl,acetate(2.64%).A total of 93.77%(34)compounds were detected in the volatiles of the leaves of Myrfus communis ‘Variegata’,the main volatiles were myrtenyl acetate(30.94%),α-pinene(12.59%),α-cedrene(8.05%),p-cymene(7.09%),linalool(4.01%)and β-myrcene(3.76%).The results of the smell experiment showed that the four aromatic plants have a positive intervention effect on human health.Based on the results of the data analysis,the following guesses were made: Smelling four plants has no significant effect on human heart rate,but has a certain effect on reducing human blood pressure,and has a very significant intervention effect on human brain waves.Viburnum macrocephalum f.keteleeri for 10 minutes can make women relax;men smelling Viburnum macrocephalum f.keteleeri for 20-30 minutes will relax;smelling Viburnum macrocephalum f.keteleeri for 30 minutes can increase the human body’s creativity,transposition thinking ability,and can improve certain concentration ability.After smelling Rosa banksiae var.lutea for 10 minutes,the female can be relaxed,and the male begin to have a clear state of relaxation after 20 minutes;men can smell Rosa banksiae var.lutea to enhance the body’s ability to focus and respond.,but this effect is not obvious after a long time;if the female smell Rosa banksiae var.lutea for a long time,it can strengthen their reaction and mental activity to a certain extent.Smelling Michelia figo for 10-20 minutes can increase female creativity and concentration;men smelling for about 30 minutes will start to have a noticeable state of relaxation.Smelling Myrtus communis ‘Variegata’ for 10 minutes can increase the human body’s creativity,concentration ability and response,and it is more effective for women;as for men,it is better to last for more than 30 minutes.The intervention effect on psychological is manifested in the rise of positive emotions and decline of negative emotions,which are mainly reflected in the decrease in tension,fatigue,compulsiveness,anxiety,hostility,depression,anger and panic,and energy and self-esteem values increase significantly..The four plants mainly have the positive intervention effects on human physiology and psychology,which can exert their decompression and improve mental activity in the healthy landscape.It is an important task in the future to use aromatic plants to create scientific and reasonable Healing landscape such as decompression and creation Park,so that people can obtain physical and mental harmony and health in the natural plant aroma atmosphere.