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Table 5 FTIR-band assignments for the lignocellulosic components

From: Quantitative visualization of lignocellulose components in transverse sections of moso bamboo based on FTIR macro- and micro-spectroscopy coupled with chemometrics

Wavenumbers (cm−1) Functional group Polymer
1157 C–O–C asymmetrical-stretching vibration Cellulose and hemicellulose
1369 CH3 symmetrical angular vibration Cellulose and hemicellulose
1373 C–H deformation Cellulose and hemicelluloses
1415 COOH groups symmetrically stretching vibration Cellulose and hemicellulose
1425 CH2 scissor vibration Cellulose and hemicellulose
1430 CH2 bending vibration in olefin Cellulose and hemicellulose
1457 CH3 asymmetrical angular vibration
CH2 bending vibration
Cellulose and hemicellulose
1504 C=C-stretching vibration in aromatic rings Lignin
1508, 1605 Aromatic skeleton vibration Cellulose
1610 C=C-stretching vibration
COOH groups stretching vibration in aromatic ring
Cellulose, hemicellulose and lignin
1735 C=O-stretching vibration in ester groups Hemicellulose