Volatile Components Analysis of Five Flower Phases of Jasminum sambac cv.Bifoliatum by GC-MS
The volatile Compounds were extracted from early bud,mature bud,flowered 12 hours after,flowered 24 hours later and trockne blumen of Jasminum sambac cv.Bifoliatum,and were identified by Gas Chromatography-Mass Spectrometer (GC-MS).The relative percentage contents were carried out by peak area normalization method.Research results:Anthesis stage was a main time of the compounds volatilization,which decreased sharply in trockne blumen period,only a few of which existed in early and mature bud.The findings were consistent with jasmine characteristics of little frangrance in non-blossoming.The main kinds of volatile ingredient of dual-petal jasmine were terpenes and esters,terpenoids volatilized largely in flowering,and esters reached maximum volatilization in that flowered 12 hours after.43 volatile compounds were identified from 5 different times,the kinds and content of which reached maximum in blooming,and the main volatile compounds included linalyl acetate,α-farnesene,methyl phenylacetate,benzyl alcohol,γ-muurolene,acetic acid methyl ester,trans-Farnesol and β-Ocimene.Research significance:The test data from the study would provide a basis for the extraction of jasmine essential oil,and provide the reference for the harvest period of jasmine tea,and also support the research on the molecular regulation mechanism of volatile substances metabolic pathways of Jasminum sambac cv.Bifoliatum.
国家科技期刊平台
NSTL
万方数据
维普
