广西植物2011，Vol.31Issue(4)：559-563,5.DOI:10.3969/j.issn.1000-3142.2011.04.027
基于主成分分析和聚类分析的野生战骨红外指纹图谱比较研究
Comparative study on FTIR fingerprint of wild Premna fulva based on principal component analysis and cluster analysis
摘要
Abstract
In order to identify and in-depth excavate the differences of chemical compositions in Premna fulva from different regions ,inrared spectra of multi-region sampled individuals were detected using the fourier transform infrared spectroscopy. After that,chemometrics methods including principal component analysis, clustering analysis and principal component loading factors were utilitied to pretreat original spectra data. The results showed that:(1)in 3 dimensional scatter maps,among the different samples, the distance between Pingguo and Fusui of Guangxi was nearest, so the natural consequence,the distances of the samples from these two places were nearest, while the real distance from Tiane to Fusui and Tianyang was further in Guangxi, the distances of the samples among these three places were also further in 3 dimensional scatter maps. In addition,geographical position of Yunnan and Guizhou were far from Guangxi,the results showed that scatter plot chart on distance were also deviated from Guangxi all around.(2)The principal component analysis model results was verified by clustering analysis and had similar consequences, while,as far as the two methods were concerned,they had individual characteristic,compared with the method of principal component analysis,clustering analysis chart could be accurately classified the research objects on each distance level,but it was difficult to directly reflect the interrelationship among research objects. (3)Through extracting the loading factor based on principal component analysis, the result indicated that the differences of quality of P. Fulva a-mong different regions mainly represented in the different contents of chemical components including naringenin,va-nillic acid,syrinaresiol,polysaccharide and glycosides.关键词
战骨/主成分分析/聚类分析/红外指纹图谱/化学成分Key words
Premna fulva/ principal component analysis/ cluster analysis/ infrared fingerprint/ chemical composition分类
生物科学引用本文复制引用
韦记青,孔德鑫,唐辉,黄庶识,王满莲,邹蓉..基于主成分分析和聚类分析的野生战骨红外指纹图谱比较研究[J].广西植物,2011,31(4):559-563,5.基金项目
广西自然科学基金(0991227) （0991227）
广西科技攻关项目(0815005-2-3) （0815005-2-3）
广西科技创新能力建设项目(0992028-10) （0992028-10）
