摘要
为了解烘干的铁皮石斛原球茎和花挥发性成分,利用GC-MS技术测定了65℃烘干后提取的原球茎和花挥发性成分及其相对含量。结果表明:原球茎和花分别鉴定出58、59种成分,包括醛类、有机酸类、醇类、酮类、酯类、烷烃类、烯烃类等,共有成分24种。原球茎和花的挥发性成分含量均以有机酸类最高,相对含量分别为22.43%和22.39%。原球茎挥发性成分相对含量排在前10位的依次为正十六酸(14.72%)、己醛(8-67%)、十五烷酸(6.95%)、2-戊基-呋喃(4.70%)、6,10,14-三甲基2-十五烷酮(4.57%)、庚烷醛(4.24%)、芳樟醇(3.57%)、2-甲基二十烷(3.22%)、桑柏醇(3.03%)和植醇(2.67%),占挥发油总量的56.34%。花挥发性成分相对含量排在前10位的依次为正十六酸(10-85%),2,3-脱氢-1,8-桉叶素(7.20%)、十五烷酸(6.30%)、β-异佛尔酮(4.73%)、9,12-十八碳二烯酸甲酯(3.39%)、四乙二醇(2.98%)、己醛(2.93%)、十四烷酸(2.92%)、9,12,15-十八碳三烯酸甲酯(2.88%)和α-异佛尔酮(2.35%),占挥发油总量的46.53%。
In order to understand the volatile components of dried Dendrobium officinale protocorm and flower,GC-MS technique was used to determine the volatile components of protocorm and flower and their relative contents extracted after drying at 65℃.The results showed that 58 and 59 components were respectively identified from protocorm and flower,including aldehydes,organic acids,alcohols,ketones,esters,alkanes and olefines,and there were 24 same components.The contents of organic acids were the highest in the volatile component contents of protocorm and flower,and the relative contents were 22.43%and 22.39%respectively.The relative content of volatile components of protocorm ranking the top 10 in order were that hexadecanoic acid(14.72%),hexanal(8.67%),pentadecanoic acid(6.95%),2-amyl-furan(4.70%),6,10,14-trimethyl 2-pentadecanone(4.57%),heptane aldehyde(4.24%),linalool(3.57%),2-methyl eicosane(3.22%),Sangbai alcohol(3.03%)and phytol(2.67%),which accounted for 56.34%of the total volatile oil.The relative content of volatile components of flower ranking the top 10 in order were that hexadecanoic acid(10.85%),2,3-dehydrogenation of 1,8-cineole(7.20%),pentadecanoic acid(6.30%),β-isophorone(4.73%),9,12-methyl octadecadienoate(3.39%),tetraethylene glycol(2.98%),hexanal(2.93%),myristic acid(2.92%),9,12,15-methyl octadecadienoate(2.88%)andα-isophorone(2.35%),which accounted for 46.53%of the total volatile oil.
作者
邹晖
王伟英
戴艺民
林江波
ZOU Hui;WANG Wei-ying;DAI Yi-min;LIN Jiang-bo(Institute of Subtropical Agriculture,Fujian Academy of Agricultural Sciences,Zhangzhou,Fujian 363005,China)
出处
《福建农业科技》
2019年第9期50-56,共7页
Fujian Agricultural Science and Technology
基金
福建省科技计划项目——省属公益类科研院所基本科研专项(2018R1024-3)
关键词
铁皮石斛
原球茎
花
挥发油
气相色谱-质谱联用仪
Dendrobium officinale
Protocorm
Flower
Volatile oil
Gas chromatograph-mass spectrometer
