Table 5 Assignments of FTIR-ATR absorption bands for bagasse
Band position (cm-1) | Assignment |
|---|---|
1730 | C = O stretching vibration in acetyl groups of hemicelluloses |
1600 | C = C stretching vibration in aromatic ring of lignin |
1510 | C = C stretching vibration in aromatic ring of lignin |
1421 | CH2 scissoring at C(6) in cellulose |
1368 | Symmetric C–H bending in cellulose |
1236 | C-O stretching vibration in lignin, xylan and ester groups |
1100 | O-H association band in cellulose and hemicelluloses (associated with crystalline cellulose) |
1030 | C-O stretching vibration in cellulose and hemicelluloses |
974 | C-O stretching vibration in arabinosyl side chains in hemicellulose |
895 | Glucose ring stretch, C1-H deformation |