摘要
通过对64份广西不同产地樟树枝叶精油样品的主成分分析,提取出五个主成分评价原主要化学成分间的相关变化。第一主成分中主要起作用的是α-蒎烯和4-萜烯醇,第二主成分中主要起作用的是橙花叔醇和α-葎草烯,第三主成分中主要起作用的是α-松油醇和桉叶油素,第四主成分中主要起作用的是樟脑和芳樟醇,第五主成分中主要起作用的是月桂烯。结合GC-MS分析结果,选取欧氏距离平方距离测度法和离差平方和的聚类方法对樟树精油主成分进行聚类分析,结果表明,当聚类水平为22时,将广西樟树分为五种化学类型:芳樟醇型、橙花叔醇型、桉叶油素型、樟脑型和蒎烯——萜烯醇型。其中芳樟醇型分布最广泛,芳樟醇含量占绝对优势。
Through the 64 essential oil samples from different areas of Guangxi principal component analysis,five principal extracted components of major interrelated changes in chemical composition were evaluated.α-pinene and terpinen-4-ol played main role in the first main component, nerolidol and a-caryophyllene played main role in the second main component,eucalyptol and α-terpineol played main role in the third main component,camphor and linalool played main role in the fourth main component, and myrcenet played main role in the fifth main component.Combined with GC-MS analysis results, selected the Ward＇ s method and the squared Euelidean distance method for clustering analysis.The results showed that the essential oil of Cinnamomum camphorastem in Guangxi were clustered into five chemotypes （ Num = 22） ： linalool type, nerolidol type, eucalyptol type, camphor type and the pinene-terpineol type.The linalool type were distributed most widely and linalool contented were the highest.
出处
《食品工业科技》
CAS
CSCD
北大核心
2013年第5期105-108,112,共5页
Science and Technology of Food Industry
基金
广西科学基金项目(桂科基0832024)
关键词
精油
樟树
化学型
主成分
GC—MS
essential oil
Cinnamomum camphora
chemo types
main component
GC- MS
