title: Identification of Cortex Eucommiae from different producing areas by FTIR microspectroscopy.
abstract: In this paper, FTIR microspectroscopy was used to compare Cortex Eucommiae from Anhui Province (A), Henan Province (B) and Sichuan Province (C) of China. High-resolution spectra were obtained with good reproducibility. From IR spectra, some obvious differences in band frequency could be observed among Cortex Eucommiae A-C. Curve fitting result indicated that polysaccharides' structures and contents were different among Cortex Eucommiae A-C. To distinguish Cortex Eucommiae from different producing areas, the A1245/A1328 ratio might be an exceptionally practical factor. Additionally, FTIR microspectroscopy could identify Cortex Eucommiae A-C with 89.5% accuracy in combination with hierarchical cluster analysis. The results suggest FTIR microspectroscopy is very easy and efficient for distinguishing Cortex Eucommiae from different areas, and also indicate FTIR microspectroscopy may be practical for TCM research.
authors: School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China.
authors: Xin
authors: X
authors: Wang
authors: The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui 230022, China.
authors: Daping
authors: D
authors: Sheng
authors: The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui 230022, China.
authors: Zhengjie
authors: Z
authors: Zhu
authors: The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui 230022, China. Electronic address: xu_fch@126.com.
authors: Fangcheng
authors: F
authors: Xu
authors: School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China.
authors: Dake
authors: D
authors: Huang
authors: The First Affiliated Hospital, Anhui Medical University, Hefei, Anhui 230022, China. Electronic address: yuchangjun321@tom.com.
authors: Changjun
authors: C
authors: Yu
mesh_terms: D002681:China; D016000:Cluster Analysis; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D031283:Eucommiaceae / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D004365:Drugs, Chinese Herbal
keywords: Cortex Eucommiae; Curve fitting; FTIR microspectroscopy; Hierarchical cluster analysis