摘要
碰碰香(Plectranthus hadiensis var.tomentosus)的芳香气味具有改善身心健康的作用,但其挥发物的释放易受到室内环境影响而降低效果。为探究碰碰香挥发物对常见室内环境变化的响应,并为其高效稳定地应用于构建舒适的亲生物环境提供科学依据,该研究采用混合正交设计,使用动态顶空和气相色谱质谱联用技术测定了碰碰香挥发物对温度、湿度、CO_(2)浓度及光照这4种常见室内环境因素的响应。结果表明:(1)在温度、湿度、CO_(2)浓度和光照4个环境因素中,CO_(2)浓度和温度对碰碰香植株挥发物释放量的影响较大,而湿度和光照的影响较弱。(2)正常光周期下培养的碰碰香,在夜晚无光照时,CO_(2)浓度500μmol·mol^(-1)、温度25℃和湿度60%的环境条件最适于碰碰香植株释放挥发物。此环境条件下碰碰香挥发物的释放总量为86.23μg·L^(-1)·kg^(-1),具有改善身心健康的活性成分含量为78.03μg·L^(-1)·kg^(-1)。综上所述,应用碰碰香构建室内亲生物环境,维持或改善人员身心健康时,应主要注意控制CO_(2)浓度和温度相关的环境条件,从而充分高效地发挥碰碰香的园艺效益。
The aromatic odor of Plectranthus hadiensis var.tomentosus has been found to have the potential to improve physical and mental health of people in indoor environment,but its effectivess is reduced for that the release of volatile organic compounds from plants is susceptible to indoor environmental changes.The purpose of this study was to investigate the response of volatile organic compounds released by P.hadiensis var.tomentosus to common indoor environmental changes,and to provide a scientific basis for its efficient and sustainable application in building a comfortable pro-biotic environment to improve the physical and mental health of indoor personnel.Thus,the effects of four typical indoor environmental factors,such as air temperature,air relative humidity,CO_(2) concentration and light variation,on the release of volatile organic compounds from P.hadiensis var.tomentosus were investigated in this study.And the dynamic headspace and gas chromatography-mass spectrometry techniques were used to analyze the volatile organic compounds in different indoor environments with an environmental control device based on mixed-level orthogonal array design.The results were as follows:(1)Among the four typical indoor environmental factors of air temperature,air relative humidity,CO_(2) concentration and light condition,CO_(2) concentration and air temperature had greater effects on the release of volatile organic compounds from P.hadiensis var.tomentosus,while the effects of air relative humidity and light were weak.(2)For P.hadiensis var.tomentosus cultivated under normal photoperiod,an environmental condition with CO_(2) concentration of 500μmol·mol-1,air temperature of 25℃and air relative humidity of 60%was the most suitable for releasing volatile organic compounds from P.hadiensis var.tomentosus in the absence of light.Under this environmental condition,the total amount of volatile organic compounds released by P.hadiensis var.tomentosus was 86.23μg·L^(-1)·kg^(-1),and the content of biological active components with potentials for the positive intervention of physical and mental health was 78.03μg·L^(-1)·kg^(-1).In summary,the results suggest that when the aroma plant P.hadiensis var.tomentosus is used to build an indoor pro-biotic environment to maintain or improve the physical and mental health of people in indoor,the environmental conditions should be controlled properly,especially CO_(2) concentration and air temperature,so as to fully and efficiently produce the positive health benefits from P.hadiensis var.tomentosus.
作者
崔静娴
刘慧
刘红
CUI Jingxian;LIU Hui;LIU Hong(Institute of Environmental Biology and Life Support Technology,School of Biological Science and Medical Enginering,Beihang University,Beijing 100191,China;International Joint Research Center of Aerospace Biotechnology&Medical Engineering,Beihang University,Beijing 100191,China)
出处
《广西植物》
CAS
CSCD
北大核心
2023年第9期1646-1655,共10页
Guihaia
基金
国家自然科学基金青年科学基金(82001996)。
关键词
碰碰香
挥发性有机物
温度
相对湿度
二氧化碳浓度
光照条件
混合水平正交试验
Plectranthus hadiensis var.tomentosus
volatile organic compounds
temperature
relative humidity
CO_(2) concentration
light condition
mixed horizontal orthogonal test
