Chinese Journal of Applied Chemistry ›› 2021, Vol. 38 ›› Issue (3): 271-275.DOI: 10.19894/j.issn.1000-0518.200341

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Infrared Spectrum about the Different Extracts of Fructus Piperis Longi

ZHANG Chun-Hui1, LIU Xi-Jing1, ZHANG Rong1 , TU Ya2*   

  1. 1Shenzhen Polytechnic, Shenzhen 518055, China
    2Development Research Center for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
  • Received:2020-11-12 Accepted:2021-01-24 Published:2021-03-01 Online:2021-05-01
  • Supported by:
    National Natural Science Foundation of China (No.81274192) and the Knowledge Innovation Program of Shenzhen (No.JCYJ20170818140058647)

Abstract: Fourier transform infrared (FT-IR) spectroscopy and its second derivative infrared spectroscopy were used to analyze the chemical compositions of different solvents extracts (petroleum ether, 95% ethanol and water) of Mongolian medicine fructus piperis longi . The results show that the absorption peaks of carbonyl (1722 cm-1) and methylene (2927 and 2855 cm-1) are stronger, which meant it has a number of low polarity components, including small molecules terpenoids, fatty acids or ester, and etc. The 95% ethanol extracts may contain aromatic ketones and glycoside compounds. The water extract mainly contains tannins and polysaccharides. The FT-IR spectra can provide the information of the main chemical components in different Mongolian medicine extracts easily and quickly, meanwhile its main components can be identified preliminarily by the FT-IR. Moreover, it can provide a reference for the next extraction approach and detection method.

Key words: Fructus piperis longi, Fourier transform infrared spectroscopy, Extract, Second derivative spectra

CLC Number: