Fourier transform Raman assignment of guaiacyl and syringyl marker bands for lignin determination

…, T Johjima, T Yamanaka, H Wariishi, H Tanaka

Index: Takayama, Miyuki; Johjima, Toru; Yamanaka, Takeshi; Wariishi, Hiroyuki; Tanaka, Hiroo Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 1997 , vol. 53, # 10 p. 1621 - 1628

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Citation Number: 43

Abstract

A near infrared fourier transform Raman (NIR-FTR) spectroscopic technique was utilized to characterize lignin in wood. The Raman bands for C C stretching derived from 4-hydroxy-3- methoxyphenyl (guaiacyl) nuclei and from 3, 5-dimethoxy-4-hydroxyphenyl (syringyl) nuclei exist independently. The NIR-FTR analysis of a series of lignin model compounds indicated that a syringyl band was shifted to a lower frequency compared to a guaiacyl band. This ...