中国激光, 2014, 41 (s1): s115002, 网络出版: 2014-07-03
不同品种牡丹花的傅里叶变换红外光谱研究
Study of Different Tree Peony Varieties by Fourier Transform Infrared Spectroscopy
光谱学 傅里叶变换红外光谱 牡丹花 主成分分析 品种鉴别 spectroscopy Fourier transform infrared spectroscopy tree peony principal component analysis variety identification
摘要
基于形貌特征的常规鉴别牡丹花品种方法主观性强且缺乏化学信息,运用傅里叶变换红外光谱(FTIR)技术结合主成分分析(PCA)来鉴别不同品种的牡丹花。各牡丹花品种的红外光谱整体上比较相似,主要由蛋白质、酚类、脂类、苷类、多糖及黄酮类化合物的振动吸收带组成。牡丹花一阶导数光谱在1800~700 cm-1区域有较大差异,选取该范围内的一阶导数数据,运用Matlab 2010编程实现主成分分析与相关分析,主成分分析的分类正确率达到96%,相关分析与主成分分析结果相一致。结果表明,此方法可以作为牡丹花品种鉴别的一种可行性手段。
Abstract
The conventional method to identify tree peony varieties is based on morphology, which is strongly subjective and lacks chemical information. Fourier transform infrared spectroscopy (FTIR) technology combined with principal component analysis (PCA) is applied to identify different varieties of tree peony flowers in this paper. The infrared spectra of tree peony samples are similar on the whole, which are mainly composed of the vibration absorption bands of proteins, phenols, lipids, glycosides, polysaccharides, flavonoids, and so on. First derivative sepctra in the range of 1800~700 cm-1 are selected to perform principal component analysis and correlation analysis using Matlab 2010 program. Correct classification amounting for 96% is observed. The results of principal component analysis and correlation analysis are identical with each other. It is demonstrated that FTIR-principal component analysis can be used as a possible means for the identification of different tree peony varieties.
赵帅群, 刘刚, 欧全宏, 赵兴祥, 任静, 徐娟, 郝建明. 不同品种牡丹花的傅里叶变换红外光谱研究[J]. 中国激光, 2014, 41(s1): s115002. Zhao Shuaiqun, Liu Gang, Ou Quanhong, Zhao Xingxiang, Ren Jing, Xu Juan, Hao Jianming. Study of Different Tree Peony Varieties by Fourier Transform Infrared Spectroscopy[J]. Chinese Journal of Lasers, 2014, 41(s1): s115002.